Check For Intermittent Problems

Inspect the vehicle's ECM using check mode. Intermittent problems are easier to detect with the intelligent tester when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic. 1. Clear the DTCs (see page ES-35). 2. Switch the ECM from normal mode to check mode using the intelligent tester (see page ES-38). 4. Check and wiggle the harness(es), connector(s) and terminal(s).

Active Air Fuel Ratio Control

The ECM usually performs air-fuel ratio feedback control so that the Air-Fuel Ratio (A F) sensor output indicates a near stoichiometric air-fuel level. This vehicle includes active air-fuel ratio control in addition to regular air-fuel ratio control. The ECM performs active air-fuel ratio control to detect any deterioration in the Three-Way Catalytic Converter (TWC) and Heated Oxygen (HO2) sensor malfunctions (refer to the diagram below). Active air-fuel ratio control is performed for...

A Check the EVAP pressure increase in step

EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-g) or more within 10 seconds of proceeding from step 2 5 to step 3 5 No variation in EVAP pressure despite proceeding from step 2 5 to step 3 5 No variation in EVAP pressure during steps 1 5 through 3 5 Canister pressure sensor malfunction fixed

Access Monitor Result

(a) Select the following items from the intelligent tester menus DIAGNOSIS, ENHANCED OBD II, MONITOR INFO and MONITOR RESULT. The monitor status appears after the component name. INCMP The component has not been monitored yet. PASS The component is functioning normally. FAIL The component is malfunctioning. (b) Confirm that the component is either PASS or FAIL. (c) Select the component and press ENTER. The accuracy test value appears if the monitor status is either PASS or FAIL.

Airfuel Ratio Af And Heated Oxygen Ho Sensor Heater Monitors Front Af And Rear Ho Sensor Type

The monitor will not run unless - The MIL is OFF. (1) Connect the intelligent tester to the DLC3. (2) Turn the ignition switch ON. (4) Clear DTCs (if set) (see page ES-35). (6) Allow the engine to idle for 10 minutes or more. (7) Drive the vehicle at 40 km h (25 mph) or more for at least 2 minutes. (1) Check the Readiness Monitor status displayed on the tester. If the status does not switch to COMPL (complete), make sure that the preconditions have been met, and repeat steps from (5) to (7)...

Basic Inspection

When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out in all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential when engine troubleshooting. Conduct this check with the engine stopped and ignition switch OFF. (a) Visually check that the air filter is not...

Check Whether Dtc Output Recurs

(a) Connect the intelligent tester to the DLC3. (b) Turn the ignition switch ON. (d) Clear DTCs (see page ES-35). (e) Drive the vehicle at more than 20 km h (12.43 mph) for over 20 seconds. (f) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES.

Confirmation Driving Pattern

Performing this confirmation pattern will activate the mass air flow performance monitor. 1. Connect the intelligent tester to the DLC3. 2. Turn the ignition switch ON. 4. Clear DTCs (see page ES-35). 5. Start the engine, and warm it up until the engine coolant temperature reaches 70 C (158 F) or higher. 6. Drive the vehicle at approximately 100 km h (62 mph) for 20 seconds or more. 7. On the tester, select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO PENDING CODES and check if...

Description

While the engine is being cranked, the positive battery voltage is applied to terminal STA of the ECM. If the ECM detects the Starter Control (STA) signal while the vehicle is being driven, it determines that there is a malfunction in the STA circuit. The ECM then illuminates the MIL and sets the DTC. This monitor runs when the vehicle is driven at 20 km h (12.4 mph) for over 20 seconds. When conditions (a), (b) and (c) met, positive (+B) battery voltage 10.5 V or more applied to ECM for 20...

Dtc Summary

EVAP pressure just after reference pressure measurement greater than -1 kPa-g (-7.5 mmHg-g) Reference pressure less than -4.85 kPa-g (-36.4 mmHg-g) Reference pressure greater than -1.057 kPa-g (-7.93 mmHg-g) Reference pressure not saturated Reference pressure difference between first and second 0.7 kPa-g (5.25 mmHg-g) or more Canister pump module (Reference orifice, leak detection pump, vent valve) Connector wire harness (Canister pump module -ECM) EVAP system hose (pipe from air inlet port to...

Es

(a) Connect the intelligent tester to the DLC3. (b) Turn the ignition switch ON and turn the tester ON. (c) Select the following menu items DIAGNOSIS ENHANCED OBD II DATA LIST PRIMARY STARTER SIG. (d) Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.

General Information

A large number of ECU controlled systems are used in the RAV4. In general, ECU controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot. However, most problem checking procedures only involve inspecting the ECU controlled system's circuits one by one. An adequate understanding of the system and a basic knowledge of electricity is enough to perform effective troubleshooting, accurate diagnoses and necessary repairs. FOR USING...

Monitor Description

When either output voltage of VPA or VPA2 deviates from the standard range, or the difference between the output voltages of the 2 sensor circuits is less than the threshold, the ECM determines that there is a malfunction in the APP sensor. The ECM then illuminates the MIL and sets a DTC. Example When the output voltage of VPA drops below 0.4 V for more than 0.5 seconds when the accelerator pedal is fully depressed, DTC P2122 is set. If the malfunction is not repaired successfully, a DTC is set...

Monitor Strategy

P2238 A F sensor open circuit between AF+ and AF-P2238 A F sensor short circuit between AF+ and AF-P2238 A F sensor short circuit between AF+ and GND P2239 A F sensor short circuit between AF+ and +B P2252 A F sensor short circuit between AF- and GND P2253 A F sensor short circuit between AF- and +B Required Sensors Components (Related) Engine Coolant Temperature (ECT) sensor, Crankshaft position sensor 10 seconds A F sensor open circuit between AF+ and AF-5 seconds Other

Ng

(a) Disconnect the B1 MAF meter connector. (b) Connect the intelligent tester to the DLC3. (c) Turn the ignition switch ON. (e) Select the following menu items DIAGNOSIS ENHANCED OBD II DATA LIST PRIMARY INTAKE AIR. Read the value displayed on the tester. Standard value -40 C (-40 F)

Ok

Connect the intelligent tester to the DLC3. Start the engine and turn the tester ON. Warm up the engine. On the tester, select the following menu items DIAGNOSIS ENHANCED OBD II ACTIVE TEST VVT CTRL B1. Check the engine speed while operating the Oil Control Valve (OCV) using the tester. Engine idles roughly or stalls (soon after OCV switched from OFF to ON)

Onvehicle Inspection

(a) Check the throttle control motor operating sounds. (1) Turn the ignition switch ON. (2) When pressing the accelerator pedal, check the operating sound of the running motor. Make sure that no friction noises emit from the motor. If friction noise exists, replace the throttle body. (b) Check the throttle position sensor. (1) Connect the intelligent tester to the DLC3. (2) Turn the ignition switch ON. (3) Push the intelligent tester main switch ON. (4) Enter the following menus DIAGNOSIS...

Result

Connect the intelligent tester to the DLC3. Turn the ignition switch ON and turn the tester ON. Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. Read DTCs. If any DTCs other than P0630 are output, troubleshoot those DTCs first. If P0630 is set, the VIN must be input to the ECM using the intelligent tester. However, all DTCs are cleared automatically by the tester when the VIN is input. If DTCs other than P0630 are set, check them first. (a) Refer to the...

Typical Enabling Conditions

Monitor runs whenever following DTCs not present Either of following conditions (a) or (b) met (a) Following conditions 1 and 2 met 20 C (68 F) or more, and sensor does not malfunction (P0115 or P0116) (b) Following conditions 1 and 2 met Less than 20 C (68 F), and sensor malfunction (P0115 or P0116) Time after ignition switch turned ON

Check Any Other Dtcs Output In Addition To Dtc Pa

(a) Connect the intelligent tester to the DLC3. (b) Turn the ignition switch ON. (d) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. If any DTCs relating to the A F sensor (DTCs for the A F sensor heater or A F sensor admittance) are output, troubleshoot those DTCs first.

Check Any Other Dtcs Output In Addition To P Or P

(a) Connect an intelligent tester to the DLC3. (b) Turn the ignition switch ON. (d) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. If any DTCs relating to the A F sensor (DTCs for the A F sensor heater or A F sensor admittance) are output, troubleshoot those DTCs first.

Trip Detection Logic

Canister pressure sensor voltage fluctuation abnormal Sensor output voltage rapidly fluctuates beyond upper and lower malfunction thresholds for 0.5 seconds. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) EVAP monitoring (ignition OFF) Sensor output voltage fluctuates frequently within certain time period. Connector wire harness (Canister pump module - ECM) EVAP system hose (pipe from air inlet port to canister pump module, canister...

Grfe Engine Mechanical Service Data

When not using the intelligent tester 1,400 kPa (14 kgf cm2, 199 psi) or more 100 kPa (1.0 kgf cm2, 15 psi) or less 0.15 to 0.40 mm (0.0059 to 0.0157 in.) 0.045 to 0.067 mm (0.0018 to 0.0026 in.) 56.000 to 56.006 mm (2.2047 to 2.2050 in.) 56.007 to 56.012 mm (2.2050 to 2.2052 in.) 56.013 to 56.018 mm (2.2052 to 2.2054 in.) 56.019 to 56.024 mm (2.2055 to 2.2057 in.) Standard sized bearing center wall thickness 1.481 to 1.484 mm (0.0583 to 0.0584 in.) 1.484 to 1.497 mm (0.0584 to 0.0585 in.)...

Check Any Other Dtcs Output In Addition To Dtc P

(a) Connect the intelligent tester to the DLC3. (b) Turn the ignition switch ON and turn the tester ON. (c) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. If any DTCs other than P0420 are output, troubleshoot those DTCs first. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (A F CONTROL) Connect the intelligent tester to the DLC3. Start the engine and turn the tester ON. Warm up the engine at an engine speed of 2,500 rpm for approximately 90 seconds. On the...

Azfe Engine Mechanical Service Data

When not using intelligent tester (Connect SST) When not using intelligent tester (Disconnect SST) 0.19 to 0.29 mm (0.0075 to 0.0114 in.) 0.38 to 0.48 mm (0.0150 to 0.0189 in.) 47.306 to 47.406 mm (1.8624 to 1.8664 in.) 35.971 to 35.985 mm (1.4162 to 1.4167 in.) 22.959 to 22.975 mm (0.9039 to 0.9045 in.) 0.007 to 0.038 mm (0.0003 to 0.0015 in.) 0.025 to 0.062 mm (0.0010 to 0.062 in.) 0.040 to 0.095 mm (0.0016 to 0.0037 in.) 45.983 to 46.083 mm (1.8104 to 1.8143 in.) 35.971 to 35.985 mm (1.4162...

Check Mode Procedure

Compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect the malfunctions that cannot be detected by normal mode. NOTICE All the stored DTCs and freeze frame data are erased if 1) the ECM is changed from normal mode to check mode or vice versa or 2) the ignition switch is turned from ON to ACC or OFF while in check mode. Before changing modes, always check and make a note of any DTCs and freeze frame data. 1. CHECK MODE PROCEDURE (Using intelligent...

Exercise extreme care and take precautions in steps f and g below Failure to do so may result in the vehicle

(f) Securely apply the parking brake and move the gear selector lever to the D position. (g) While depressing the brake pedal securely, fully depress the accelerator pedal for 5 seconds. (h) On the tester, select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. The output voltage of the throttle position sensor can be checked during step (g) using the intelligent tester. Variations in the output voltage indicate that the throttle actuator is in operation. To check the...

Repair Or Replace Harness Or Connector

Standard resistance (Check for short) B6-1 (G2+) or B30-99 (G2+) - Body ground B6-2 (G2-) or B30-98 (G2-) - Body ground CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR) (a) Check the CMP sensor installation. OK (a) Check the teeth of the camshaft. OK Camshaft teeth do not have any cracks or deformation. (a) Connect the intelligent tester to the DLC3. (b) Turn the ignition switch ON. (d) Clear DTCs (see page ES-35). (f) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO...

Check Misfire Count Cyl

(a) Connect the intelligent tester to the DLC3. (b) Turn the ignition switch ON. (d) Clear DTCs (see page ES-35). (e) Select the following menu items DIAGNOSIS ENHANCED OBD II DATA LIST MISFIRE CYL 1, 2, 3 and 4. (g) Read each value for CYL 1 to 4 displayed on the tester. If no misfire counts occur in any cylinders, perform the following procedures (1) Shift the gear selector lever to the D position. (3) If misfire counts are still not displayed, perform steps (h) and (i) and then check the...

Related Dtcs

Reference orifice clogged (built into canister pump module) Reference orifice high-flow (built into canister pump module) Purge VSV (Vacuum Switching Valve) stuck closed Canister pressure sensor (built into canister pump module) voltage abnormal fluctuation Canister pressure sensor (built into canister pump module) noise Canister pressure sensor (built into canister pump module) signal becomes fixed flat Canister pressure sensor (built into canister pump module) voltage low Canister pressure...

Read Value Using Intelligent Tester Starter Signal

Connect the intelligent tester to the DLC3. Turn the ignition switch ON and turn the tester ON. Select the following menu items DIAGNOSIS ENHANCED OBD II DATA LIST PRIMARY STARTER SIG. Check the value displayed on the tester when the ignition switch is turned to the ON and START positions. INSPECT IGNITION OR STARTER SWITCH ASSEMBLY (a) Disconnect the E3 ignition switch connector. (b) Check the resistance. Standard resistance (c) Reconnect the ignition switch connector. REPLACE IGNITION OR...

Abbreviations Used In Manual

Automatic Disconnecting Differential Engine Control And Measurement System Electronic Controlled Automatic Transmission Transaxle Electronic Throttle Control System-intelligent High Intensity Discharge (Headlight) Load Sensing Proportioning and Bypass Valve Throttle Body Electronic Fuel Injection TOYOTA Electronic Modulated Suspension Total Information System For Vehicle Development P.T. TOYOTA Motor Manufacturing Indonesia TOYOTA Motor Manufacturing Kentucky, Inc. TOYOTA South Africa Motors...

Data List Active Test

By reading the DATA LIST displayed on an intelligent tester, values can be checked, including those of the switches, sensors, and actuators, without removing any parts. Reading the DATA LIST as the first step of troubleshooting is one method of shortening diagnostic time. NOTICE In the table below, the values listed under Normal Condition are for reference only. Do not depend solely on these values when determining whether or not a part is faulty. (b) Turn the ignition switch OFF. (c) Connect...

Check Any Other Dtcs Output In Addition To Dtc P Or P

(a) Connect the intelligent tester to the DLC3. (b) Turn the ignition switch ON and turn the tester ON. (c) Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. If any DTCs other than P0171 or P0172 are output, troubleshoot those DTCs first. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (A F CONTROL) Connect the intelligent tester to the DLC3. Start the engine and turn the tester ON. Warm up the engine at an engine speed of 2,500 rpm for approximately 90 seconds. On...

Inspection Procedure

Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred. READ VALUE USING INTELLIGENT TESTER (THROTTLE POS 1 AND THROTTLE POS 2) Connect the intelligent tester to the DLC3. Turn the ignition...

Read Value Using Intelligent Tester Check For Open In Wire Harness

(a) Disconnect the B1 Mass Air Flow (MAF) meter connector. (b) Connect terminals THA and E2 of the MAF meter wire harness side connector. (c) Connect the intelligent tester to the DLC3. (d) Turn the ignition switch ON. (f) Select the following menu items DIAGNOSIS ENHANCED OBD II DATA LIST PRIMARY INTAKE AIR. (g) Read the value displayed on the tester. Standard value

Dtc Check Clear

When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and freeze frame data recorded in normal mode are erased. Before changing modes, always check and make a note of any DTCs and freeze frame data. HINT DTCs which are stored in the ECM can be displayed on the intelligent tester. The intelligent tester can display current and pending DTCs. Some DTCs are not set if the ECM does not detect the same malfunction again during a second consecutive driving cycle....

Perform Confirmation Driving Pattern

CHECK WHETHER DTC OUTPUT RECURS (DTC P0136) (a) On the intelligent tester, select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. PERFORM CONFIRMATION DRIVING PATTERN CHECK WHETHER DTC OUTPUT RECURS (DTC P0136) (a) On the intelligent tester, select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. _J__________ ______________ __________

Torque Specifications

Front suspension member reinforcement RH x Front cross member, Front suspension crossmember No. 1 camshaft bearing cap x Cylinder head No. 2 camshaft bearing cap x Cylinder head No. 3 camshaft bearing cap x Cylinder head No. 1 chain tensioner x Timing chain cover Chain tensioner plate x Crankshaft bearing cap Oil pump drive shaft sprocket x Oil pump No. 1 chain vibration damper x Cylinder head, Cylinder block Chain tensioner slipper x Cylinder head, Cylinder block Timing chain guide x...

Notice For Using Jack And Safety Stand

2002 Toyota Celica Jack Points

Use wheel chocks at all times. b Use safety stands with rubber attachments as shown in the illustration. c Set the jack and safety stands to the specified locations of the vehicle accurately. d When jacking up the vehicle, first release the parking brake and move the shift lever to N. e When jacking up the entire vehicle When jacking up the front wheels first, make sure wheel chocks are behind the rear wheels. When jacking up the rear wheels first, make sure wheel...

If the malfunction is not repaired successfully a DTC is set second after the engine is next started Monitor Strategy

P0351 Igniter cylinder 1 malfunction P0352 Igniter cylinder 2 malfunction P0353 Igniter cylinder 3 malfunction P0354 Igniter cylinder 4 malfunction Required Sensors Components Related Monitor runs whenever following DTCs not present Either of following conditions A or B met Either of following conditions C or D met C. Both of following conditions a and b met D. All of following conditions a , b and c met c Number of sparks after CPU reset

Read Value Using Intelligent Tester Test Value Of Af Sensor

Connect the intelligent tester to the DLC3. Turn the ignition switch ON and turn the tester ON. Drive the vehicle in accordance with the drive pattern described in the CONFIRMATION DRIVING PATTERN. Select the following menu items DIAGNOSIS ENHANCED OBD II MONITOR INFO MONITOR Check that the status of O2S MON is COMPL. If the status is still INCMPL, drive the vehicle according AVAIL indicates that the component has not been monitored yet. COMPL indicates that the component is functioning...

Perform Active Test Using Intelligent Tester Vacuum Pump Alone

Disconnect the S3 canister pump module connector. On the intelligent tester, select the following menu items DIAGNOSIS ENHANCED OBD II ACTIVE TEST VACUUM PUMP. Measure the voltage between MTRB terminal 1 of the canister pump module connector and the body ground when the leak detection pump is turned ON and OFF using the tester. Below 3 V when OFF 9 to 14 V when ON 1. Wire harness between leak detection pump and body ground 1. Wire harness between leak detection pump and ECM

Glossary Of Sae And Toyota Terms

This glossary lists all SAE-J1930 terms and abbreviations used in this manual in compliance with SAE recommendations, as well as their TOYOTA equivalents. Engine Electronic Control Unit ECU Coolant Temperature, Water Temperature THW Electrically Erasable Programmable Read Only Memory Electrically Erasable Programmable Read Only Memory EEPROM Cold Mixture Heater CMH , Heat Control Valve HCV Erasable Programmable Read Only Memory Programmable Read Only Memory PROM Flash Electrically Erasable...

Performing this confirmation pattern will activate the catalyst monitor This is very useful for verifying the

Between 64 km h and 113 km h 40 mph and 70 mph This test will not be completed if the vehicle is driven at absolutely constant speed such as with cruise control activated. Note Even if vehicle stops during driving pattern, test can be resumed a Connect the intelligent tester to the DLC3. b Turn the ignition switch ON. d Clear DTCs if set see page ES-35 . e Select the following menu items DIAGNOSIS ENHANCED OBD II DATA LIST USER DATA CAT CMPL. f Check that CAT CMPL is INCMPL incomplete . g Start...

Total of Short Ft and Long Ft values is between and

PERFORM ACTIVE TEST USING INTELLIGENT TESTER OPERATE OCV a Connect the intelligent tester to the DLC3. b Start the engine and turn the tester ON. d Select the following menu items DIAGNOSIS ENHANCED OBD II ACTIVE TEST VVT CTRL B1. e Check the engine speed while operating the Oil Control Valve OCV using the tester. Engine idles roughly or stalls soon after OCV switched from OFF to ON PCV hose is connected correctly and is not damaged. a Check the air induction system for vacuum leakage. OK No...

Engine Serial Number And Transaxle Serial Number

a The engine serial number is stamped on the cylinder block of the engine and the transaxle serial number is stamped on the housing as shown in the illustrations. Always wear a clean uniform. A hat and safety shoes must be worn. Prepare a grille cover, fender cover, seat cover and floor mat before starting the operation. When working with 2 or more persons, be sure to check safety for one another. When working with the engine running, make sure to provide ventilation for exhaust fumes in the...

Toyota Rav4 2000 P0304 Misfire Detected Cylinder

P030x Toyota 4runner

Random Multiple Cylinder Misfire Detected When the engine misfires, high concentrations of hydrocarbons HC enter the exhaust gas. Extremely high HC concentration levels can cause increases in exhaust emission levels. High concentrations of HC can also cause increases in the Three-Way Catalytic Converter TWC temperature, which may cause damage to the TWC. To prevent these increases in emissions and to limit the possibility of thermal damage, the ECM monitors the misfire rate. When the...

Clean Oil Control Valve Filter

REPLACE CAMSHAFT TIMING GEAR ASSEMBLY a Connect the intelligent tester to the DLC3. b Turn the ignition switch ON and turn the tester ON. c Clear DTCs see page ES-35 . d Start the engine and warm it up. e Switch the ECM from normal mode to check mode using the tester. f Drive the vehicle for more than 10 minutes. g Read output DTCs using the tester. Standard DTC P0011 or P0012 is output when foreign objects in engine oil are caught in some parts of the system. These codes will stay registered...

Rav4 Tps Output 4.9v Throttle Closed

Toyota Rav4 Throttle Actuator

The standard normal voltage between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations. Battery for measuring battery voltage and for ECM memory Camshaft timing oil control...

Check For Sparks And Ignition

Ignition Coils E11

a Remove the ignition coil from the cylinder head. b Install the spark plug onto the ignition coil. c Connect the intelligent tester to the DLC3. d Turn the ignition switch ON and turn the tester ON. e Select the following menu items DIAGNOSIS ENHANCED OBD II ACTIVE TEST FUEL CUT ALL. f Attach the spark plug assembly to the cylinder head. g Perform the FUEL CUT ALL operation press the RIGHT or LEFT button to change the ON .

Perform Evap System Check Step To

a Check the EVAP pressure in steps 1 5 and 2 5. Virtually no variation in EVAP pressure during step 1 5. Then decreases to reference pressure Small difference between EVAP pressures during steps 1 5 and 2 5 These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the CONFIRM DTC procedures above. HINT The first reference pressure is the value determined in step 2 5.

Go to step

Rav4 Vsv Valve Hose Connection

CHECK HARNESS AND CONNECTOR ECM - CANISTER PUMP MODULE a Turn the ignition switch OFF. b Disconnect the S3 canister pump module connector. c Disconnect the A9 ECM connector. d Measure the resistance between MPMP terminal of the ECM connector and MTRB terminal of the canister pump module connector. Wire harness between ECM and canister pump module e Reconnect the canister pump module connector. f Reconnect the ECM connector. INSPECT INTAKE MANIFOLD EVAP PURGE PORT b Disconnect the EVAP hose from...

Check Ecm Power Source Circuit

CHECK HARNESS AND CONNECTOR HO2 SENSOR - ECM a Disconnect the B19 HO2 sensor connector. b Disconnect the B30 ECM connector. Standard resistance Check for open Standard resistance Check for short B19-1 HT1B or B30-47 HT1B -Body ground d Reconnect the HO2 sensor connector. e Reconnect the ECM connector. REPAIR OR REPLACE HARNESS OR CONNECTOR a Connect the intelligent tester to the DLC3. b Turn the ignition switch ON. d Clear DTCs see page ES-35 . f Allow the engine to idle for 2 minutes or more....

Replace Mass Air Flow Meter

Toyota Rav4 2003 Ecm

CHECK HARNESS AND CONNECTOR MASS AIR FLOW METER - ECM a Disconnect the B1 MAF meter connector. b Disconnect the B30 ECM connector. c Measure the resistance. Standard resistance B1-1 THA or B30-65 THA - Body ground d Reconnect the MAF meter connector. e Reconnect the ECM connector. REPAIR OR REPLACE HARNESS OR CONNECTOR Intake Air Temperature Sensor Gradient Too High

GCheck the values by referring to the table below

Injection period of No. 1 cylinder Min. 0 ms, Max. 32.64 ms Ignition timing advance for No. 1 cylinder Load calculated by ECM Min. 0 , Max. 100 10 to 20 Running without load at 2,500 rpm Load percentage in terms of maximum intake air flow amount Air flow rate from MAF meter Min. 0 g sec., Max. 655.35 g sec. 2 to 5 g sec. Idling 8 to 19 g sec. Running without load at 2,500 rpm Mass air flow meter power source circuit open VG circuit open or short If value 160.0 g sec. or more Engine coolant...

Read Value Using Intelligent Tester Output Voltage Of Af Sensor

Connect the intelligent tester to the DLC3. Start the engine. Turn the tester ON. Warm up the A F sensor at an engine speed of 2,500 rpm for 90 seconds. On the tester, select the following menu items DIAGNOSIS ENHANCED OBD II SNAPSHOT MANUAL SNAPSHOT USER DATA AFS B1 S1 and ENGINE SPD. Check the A F sensor voltage 3 times, when the engine is in each of the following conditions 1 While idling check for at least 30 seconds 2 At an engine speed of approximately 2,500 rpm without any sudden changes...

Perform Active Test Using Intelligent Tester Injection Volume

a Connect the intelligent tester to the DLC3. b Start the engine and turn the tester ON. d Select the following menu items DIAGNOSIS ENHANCED OBD II ACTIVE TEST INJ VOL. e Change the fuel injection volume using the tester, monitoring the voltage output of Air-Fuel Ratio A F and HO2 sensors displayed on the tester. Change the fuel injection volume within the range of -12 and 12 . The injection volume can be changed in 1 graduations within the range. The A F sensor is displayed as AFS B1 S1, and...

P0012 Toyota Rv4

CHECK WHETHER DTC OUTPUT RECURS DTC P0011 OR P0012 a Connect the intelligent tester to the DLC3. b Turn the ignition switch ON and turn the tester ON. c Clear DTCs see page ES-35 . d Start the engine and warm it up. e Switch the ECM from normal mode to check mode using the tester. f Drive the vehicle for more than 10 minutes. g Read DTCs using the tester. OK

Replace Engine Coolant Temperature Sensor

CHECK HARNESS AND CONNECTOR ENGINE COOLANT TEMPERATURE SENSOR ECM a Disconnect the B4 ECT sensor connector. b Disconnect the B30 ECM connector. c Measure the resistance. Standard resistance B4-2 THW or B30-97 THW - Body ground d Reconnect the ECT sensor connector. e Reconnect the ECM connector. REPAIR OR REPLACE HARNESS OR CONNECTOR

Inspect Crankshaft Position Sensor Resistance

a Disconnect the B22 CKP sensor connector. b Measure the resistance between terminals 1 and 2. Standard resistance Terms cold and hot refer to the temperature of the sensor. Cold means approximately -10 to 50 C 14 to 122 F . Hot means approximately 50 to 100 C 122 to 212 F . c Reconnect the CKP sensor connector.

Confirm Dtc And Evap Pressure

Connect the intelligent tester to the DLC3. Turn the ignition switch ON do not start the engine . Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. Read DTCs. Select the following menu items DIAGNOSIS ENHANCED OBD II DATA LIST EVAP EVAP VAPOR PRESS. Read the EVAP Evaporative Emission pressure displayed on the tester. Wire harness connector ECM - Canister pressure sensor Wire harness connector ECM - Canister pressure sensor

Check Any Other Dtcs Output In Addition To Misfire Dtcs

a Connect the intelligent tester to the DLC3. b Turn the ignition switch ON. d Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. P0300, P0301, P0302, P0303 and or P0304 P0300, P0301, P0302, P0303 and or P0304 and other DTCs If any DTCs other than P0300, P0301, P0302, P0303 and P0304 are output, troubleshoot those DTCs first.

Freeze Frame Data

Freeze frame data records the engine conditions fuel system, calculated load, engine coolant temperature, fuel trim, engine speed, vehicle speed, etc. when a malfunction is detected. When troubleshooting, it can help determine if the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was Lean or Rich, and other data from the time the malfunction occurred. HINT If it is impossible to duplicate the problem even though a DTC is detected, confirm the freeze frame...

Check Evap Hose Purge Vsv Intake Manifold

Rav4 Vsv Valve Hose Connection

a Disconnect the hose connected to the intake manifold from the purge VSV. c Use your finger to confirm that the hose has suction. EVAP hose between purge VSV and intake manifold normal EVAP hose between purge VSV and intake manifold INSPECT DUTY VACUUM SWITCHING VALVE PURGE VSV b Apply the battery voltage to the terminals of the purge VSV. c Using an air gun, confirm that air flows from port A to port B. CHECK HARNESS AND CONNECTOR POWER SOURCE OF PURGE VSV a Disconnect the B2 purge VSV...

Customize Parameters

Toyota Rav Shift Solenoid Valve

When the customer requests a change in a function, first make sure that the function can be customized. Make a note of the current settings before customizing. When troubleshooting a function, first make sure that the function is set to the default setting. Seat belt warning buzzer ON OFF setting D P ON Driver and passenger buzzer ON D ON Driver buzzer ON P ON Passenger buzzer ON D P OFF Driver and passenger buzzer OFF SET TEMP SHIFT Set Temperature Shift To control with shifted temperature...

Inspect Canister Pump Module Vent Valve Operation

Toyota Mr2

a Turn the ignition switch OFF. b Disconnect the S3 canister pump module connector. c Apply the battery voltage to VLVB and VGND terminals of the canister pump module. d Touch the canister pump module to confirm the vent valve operation. 1. Wire harness between vent valve and ECM e Reconnect the canister connector. gt

Inspect Canister Pump Module Power Source For Vent Valve

Canister Pump Module Rav4

a Turn the ignition switch OFF. b Disconnect the S3 canister pump module connector. c Turn the ignition switch ON. d Measure the voltage between VLVB terminal of the canister pump module connector and the body ground. 1. Wire harness between vent valve and ECM Power source wire harness of vent valve e Reconnect the canister pump module connector.

Inspect Throttle Body Assembly Visually Check Throttle Valve

a Check for contamination between the throttle valve and the housing. If necessary, clean the throttle body. And check that the throttle valve moves smoothly. Throttle valve is not contaminated with foreign objects and moves smoothly. CHECK WHETHER DTC OUTPUT RECURS DTC P2111 OR P2112 Connect the intelligent tester to the DLC3. Start the engine, and fully depress and release the accelerator pedal quickly to fully open and close the Select the following menu items DIAGNOSIS ENHANCED OBD II DTC...

Check Whether Dtc Output Recurs Accelerator Pedal Position Sensor Dtcs

a Connect the intelligent tester to the DLC3. b Turn the ignition switch ON and turn the tester ON. c Clear DTCs see page ES-35 . e Allow the engine to idle for 15 seconds. f Select the following menu items DIAGNOSIS ENHANCED OBD II DTC INFO CURRENT CODES. P2120, P2122, P2123, P2125, P2127, P2128, and or P2138

Failsafe Chart

If any of the following DTCs are set, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily. ECM calculates ignition timing according to engine speed and throttle valve position. ECM estimates IAT to be 20 C 68 F . Engine Coolant Temperature ECT Sensor ECM estimates ECT to be 80 C 176 F . P0120, P0121, P0122, P0123, P0220, P0222, P0223, P0604, P0606, P0607, P0657, P2102, P2103, P2111, P2112, P2118, P2119 and P2135 Electronic Throttle Control System ETCS ECM cuts off...

Diagnostic Trouble Code Chart

Parameters listed in the chart may be different than your readings depending on the type of instrument and other factors. If any DTCs are displayed during a check mode DTC check, check the circuit for the DTCs listed in the table below. For details of each DTC, refer to the page indicated. Camshaft Position A Actuator Circuit Bank 1 - Open or short in Oil Control Valve OCV circuit Camshaft Position A - Timing Over-Advanced or System Performance Bank 1 - Camshaft timing gear assembly Camshaft...