Inspection Procedure

If DTC P0115 and P0116 are output simultaneously, engine coolant temp. sensor circuit may be open. Perform troubleshooting of DTC P0115 first. Read freeze frame data using TOYOTA hand-held tester or OBD II scan tool. Because freeze frame records the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining whether the vehicle was running or stopped, the engine warmed up or not, the air-fuel ratio lean or rich, etc. at the time of the malfunction.

A CARB mandated signals

OPEN Air-fuel ratio feedback stopped CLOSED Air-fuel ratio feedback operating Current intake air volume as a proportion of max. intake air volume Racing without load (2,250rpm) 6.9 - 16.2 After warming up 80 - 95 C (176 - 203 F) Air Flow Rate Through Mass Flow Meter Idling 1.11 - 4.38 gm sec. Racing without load (2,250 rpm) 3.38 - 7.88 gm sec. Voltage Output of Throttle Position Sensor Calculated as a percentage 0 V 0 , 5 V 100 Throttle Fully Closed 0 - 5 Throttle Fully Open 90 - 100 Voltage...

Are there any other codes besides DTC P being output

Go to relevant DTC chart (See page DI-14). Check the output voltage of heated oxygen sensor during idling. Warm up the heated oxygen sensor the engine at 2,500 rpm for approx. 90 sec. CHECK Use the OBD II scan tool or TOYOTA hand-held tester read the output voltage of the heated oxygen sensor Alternates repeatedly between less than 0.42 V and more than 0.48 V (See the Following table).

Body Electrical

DAYTIME RUNNING RELAY (MAIN) (Wire harness side) 1 - Ground (Ignition switch LOCK or ACC) WIRELESSS DOOR LOCK CONTROL RECEIVER (Wire harness side) POWER MIRROR SWITCH (Wire harness side) 8 - Ground (Ignition switch ACC or ON) 3 - Ground (Ignition switch ACC or ON) CENTER CLUSTER SWITCH (Wire harness side) 1 - Ground (Ignition switch ACC or ON) TRANSPONDER KEY ECU (Wire harness side)

CHandle the connector See page IN

TOYOTA HAND-HELD TESTER DISPLAY ITEMS Number of operation of 1 trip before last Number of operation 2 trips before last Communication malfunction between HV ECU and brake History of acceleration and reduction Temperature of the battery is too high Highest temperature of all battery cells Lowest temperature of all battery cells Factors causing DC DC converter to stop DC DC converter has stopped at least once 3 When cranking engine or engine is operating 4 While generating power or load driving 6...

Check

(a) Turn the ignition switch to ON, and wait at least for 20 seconds. (b) Clear the DTC stored in memory (See page DI-509). (c) Turn the ignition switch to LOCK, and wait at least for 20 seconds. (d) Turn the ignition switch to ON, and wait at least for 20 seconds. Codes other than code B0111 44 may be output at this time, but they are not relevant to this check.

Check For Intermittent Problems

By putting the vehicle's ECM in check mode, 1 trip detection logic is possible instead of 2 trip detection logic and sensitivity to detect open circuits is increased. This makes it easier to detect intermittent problems. (1) Clear the DTC (See step 3). (2) Set the check mode (See step 3). (3) Perform a simulation test (See page IN-30). (4) Check the connector and terminal (See page IN-41). (5) Handle the connector (See page IN-41).

Check for open and short in harness and connector between ECM and oxygen sensor See page IN

(a) Connect the OBD II scan tool or TOYOTA hand-held tester to the DLC3. (b) Warm up the engine to normal operating temp. CHECK Read voltage output of oxygen sensor when engine suddenly raced. HINT Perform a quick racing of 2,000 rpm or more 3 times by using the accelerator pedal. OK Oxygen sensor output voltage Alternates from 0.40 V or less to 0.50 V or more. Check that each connector is properly connected.

Check the output voltage of heated oxygen sensor during idling

Warm up the oxygen sensor the engine at 2,500 rpm for approx. 90 sec. CHECK Use the OBD II scan tool or TOYOTA hand-held tester read the output voltage of the heated oxygen sensor Alternates repeatedly between less than 0.4 V and more than 0.55 V (See the following table).

DTC P is not stored

* DTC P1349 is also output after the foreign object is caught in some part of the system in the engine oil and the system returns to normal in a short time. As ECM controls so that foreign objects are ejected, there is no problem about VVT. There is also no problem since the oil filter should get the foreign object in the engine oil. OBD II scan tool (excluding TOYOTA hand-held tester) Check voltage between terminals OCV+ and OCV- of ECM connector.

Ok

(a) Connect the connector to the airbag sensor assembly. (b) Connect negative (-) terminal cable to the battery, and wait at least for 2 seconds. (a) Turn the ignition switch to ON, and wait at least for 20 seconds. (b) Clear the DTC stored in memory (See page DI-509). (c) Turn the ignition switch to LOCK, and wait at least for 20 seconds. (d) Turn the ignition switch to ON, and wait at least for 20 seconds. (e) Check the DTC (See page DI-509). OK Codes other than code B0110 43 may be output at...

Preparation

(a) Be sure that enough fuel is in the tank. (b) Connect the TOYOTA hand-held tester to the DLC3. (c) Turn the ignition switch ON and push the TOYOTA handheld tester main switch ON. (d) Use the ACTIVE TEST mode to operate the fuel pump. (e) Please refer to the TOYOTA hand-held tester operator's manual for further details. (f) If you have no TOYOTA hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector (See page SF-6).

Ready

(2) When the READY light is ON, the master warning light should go off. If the lamp remains on, the diagnosis system has detected a malfunction or abnormality in the system. (1) Prepare a TOYOTA hand-held tester. (2) Connect the TOYOTA hand-held tester to the DLC3. (3) Turn the ignition switch ON and push the TOYOTA hand-held tester main switch ON. (4) Use the TOYOTA hand-held tester to check the DTC and freeze frame data and note them down. (For operating instructions, see the TOYOTA handheld...

Repair or replace and check for open circuit in harness and connector between DLC and ABS solenoid relay and body

Check that the brake ECU connectors are securely connected to the brake ECU. Connect the connector to the brake ECU. Check operation of the ABS warning light (See step 1). Repair circuit indicated by the output code. Check ABS solenoid relay (See step 3). Check for short circuit in harness and connector between DLC3 and ABS solenoid relay (See page IN 41).

Person in charge

Copy this page and put it after folding on the roof of the vehicle in service. 2. PRECAUTIONS TO BE OBSERVED WHEN INSPECTING OR SERVICING ENGINE COMPARTMENT The PRIUS, automatically turns the engine ON and OFF when the ignition switch is set to the ON position provided that the READY light on the instrument panel is it. Before inspecting or servicing the engine compartment, therefore, remove the ignition switch key. 3. ACTIONS TO BE TAKEN WHEN BATTERIES ARE DEPLETED (a) Actions to be taken when...

Repair or replace harness or connector be tween front passenger airbag assembly and air bag sensor assembly

(a) Connect the connector to the airbag sensor assembly. (b) Using a service wire, connect P+ and P- of the connector (on the front passenger airbag assembly side) between the front passenger airbag assembly and the airbag sensor assembly. (c) Connect negative (-) terminal cable to the battery, and wait at least for 2 seconds. (a) Turn the ignition switch to ON, and wait at least for 20 seconds. (b) Clear the DTC stored in memory (See step 5 on page DI-509). (c) Turn the ignition switch to...

Dtc Clearance Using service wire

(a) Connect the 2 service wires to terminals TC and AB of DLC3. (b) Turn the ignition switch to ON and wait for approx. 6 seconds. (c) Starting with the TC terminal, ground alternately terminal TC and terminal AB twice each in cycles of 1.0 second. Make sure that the terminals are grounded. Ensure the terminal TC remain grounded. When alternately grounding terminals TC and AB, release ground from one terminal and immediately ground the other terminal within an interval of 0.2 seconds. If DTCs...

OBD II scan tool excluding Toyota handheld tester

Check whether hose close to fuel tank have been modified, and check whether there are signs of any accident near fuel tank or charcoal canister See page DI-83 . Check that fuel tank cap is TOYOTA genuine parts. Check that fuel tank cap is correctly installed. Check fuel tank cap See page EC-7 . Check VSV connector for EVAP, VSV connector for CCV, VSV connector for purge flow switching valve and vapor pressure sensor connector for looseness and disconnection. Repair or connect VSV or sensor...

Diagnosis System

The vehicle's ECM uses ISO 9141-2 for communication. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 9141-2 format. Chassis Ground Body Ground 1 Q or less Battery Positive Body Ground 9 -14 V If your display shows UNABLE TO CONNECT TO VEHICLE when you have connected the cable of the OBD II scan tool or TOYOTA hand-held tester to the DLC3, turned the ignition switch ON and operated the scan tool, there is a problem on the vehicle side or tool side. If...

DTC B is not output

Short Squib Circuit

Codes other than code B0102 11 may be output at this time, but they are not relevant to this check. a Turn the ignition switch to LOCK. b Disconnect negative - terminal cable from the battery, and wait at least for 90 seconds. c Connect the steering wheel pad D squib connector. d Connect negative - terminal cable to the battery, and wait at least for 2 seconds. a Turn the ignition switch to ON, and wait at least for 20 seconds. b Clear the DTC stored in memory See step 5 on page DI-509 . c Turn...

Dtc Clearance Using Toyota handheld tester

a Hook up the TOYOTA hand-held tester to the DLC3. b Clear the DTCs by following the prompts on the tester screen. Please refer to the TOYOTA hand-held tester operation's manual for further details. 8. RELEASE METHOD OF AIRBAG ACTIVATION PREVENTION MECHANISM An airbag activation prevention mechanism is built into the connector for the squib circuit of the SRS. When release of the airbag activation prevention mechanism is directed in the troubleshooting procedure, as shown in the illustration...

In case of using Toyota handheld tester Preparation

a Connect the TOYOTA hand-held tester to the DLC3. b Turn the ignition switch ON, and push the TOYOTA hand-held tester main switch ON. c Select the DATALIST mode on the TOYOTA hand-held tester. CHECK Depress the brake pedal more than 40 times with the ignition switch OFF then turn the ignition switch ON and check the pressure switch PL condition. When a pressure in power supply system is released, reaction force becomes heavy and stroke becomes

Ng

Check continuity between terminal CG of DLC3 and body ground. Repair or replace harness or connector. 3 Check for open and short circuit in harness and connector between ECM and DLC3, and DLC3 and body ground See page IN-41 . Check and replace ECM See page IN-41 . This circuit cuts air conditioning operation during vehicle acceleration in order to increase acceleration performance. During acceleration with the vehicle speed at AT 25 km h 16 mph , MT 40 km h 25 mph or less, engine speed at AT...

Toyota Prius Am2 Fuse

Remove the AM2 fuse from the engine room J B. CHECK Check the continuity of the AM2 fuse. OK Check for short in all harness and components connected to AM2 fuse See attached wiring diagram . Check and repair harness and connector between battery and ignition switch, and ignition switch and ECM.

How To Proceed With Troubleshooting

1985 4runner Circuit Open Relay

Carry out troubleshooting in accordance with the procedure on the following page. Here, only the basic procedure is shown. Details are provided in Diagnostics section, showing the most effective methods for each circuit. Confirm the troubleshooting procedures first for the relevant circuit before beginning troubleshooting of that circuit. Ask the customer about the conditions and the environment when the problem occurred. 'Symptom Confirmation and Diagnostic Trouble Code Check 'Symptom...

Input Signal Check Test Mode

Sst 09843 18040

a In case of not using TOYOTA hand-held tester Check the input signal. 1 Turn the ignition switch OFF. 2 Using SST, connect terminals Ts and CG of DLC3. SST 09843-18040 3 Check the warning light goes off with driving more than 20 km h 12 mph . If the warning light goes off during driving, the sensor can be judged to normal. 5 Using SST, connect terminals Tc and CG of DLC3. SST 09843-18040 6 Read the number of blinks of the PS warning light. See the list of DTC shown on the next page. Even a...

Resistance Below Q

a Connect the connector to the airbag sensor assembly. b Using a service wire, connect D and D- of the connector on the spiral cable side between the spiral cable and the steering wheel pad D squib . c Connect negative - terminal cable to the battery, and wait at least for 2 seconds. a Turn the ignition switch to ON, and wait at least for 20 seconds. b Clear the DTC stored in memory See page DI-509 . c Turn the ignition switch to LOCK, and wait at least for 20 seconds. d Turn the ignition...

Replace the body ECU

Check if the open door Indicator light is turned on when either If the open door indicator light doesn't illuminate, the communication between the combination meter ECU and the body ECU may be stopped. In this case, the room light illuminates and outputs the DTC. Go to step 3. DTC CHECK open door indicator light . 3. DTC CHECK Using diagnosis check wire a Using SST, connect terminals Tc and CG of DLC3. SST 09843-18020 b Turn the ignition switch ON. c Read the DTC on the open door indicator...

Connect Toyota handheld tester and check operation of VSV purge flow switching valve

a Connect the TOYOTA hand-held tester to the DLC3. b Turn the ignition switch ON and push the TOYOTA handheld tester main switch ON. c Select the ACTIVE TEST mode on the TOYOTA handheld tester. Check operation of VSV when VSV is operated by the TOYOTA Air from pipe E is flowing out through pipe F. VSV is OFF Air from pipe E is flowing out through the air filter.

O Hybrid system warning light lights up X Hybrid system warning light does not light up

INFORMATION CODE TOYOTA Hand-held tester only No input of signal from transponder key ECU Accelerator Pedal Position Sensor Circuit Malfunction Open or short in main accelerator sensor circuit B short in main accelerator sensor circuit Open or short in sub accelerator sensor circuit B short in sub accelerator sensor circuit When difference between main sensor value and sub sensor value is large When sub sensor value changes while main sensor value does not When main sensor value changes while...

Circuit Description

Corolla E11 Rear Axle

The vapor pressure sensor, VSV for canister closed valve CCV , VSV for purge flow switching valve are used to detect abnormalities in the evaporative emission control system. The ECM decides whether there is an abnormality in the evaporative emission control system based on the vapor pressure sensor signal. DTCs P0441 and P0446 are recorded by the ECM when evaporative emissions leak from the components. 1 below, or when there is a malfunction in either the VSV for EVAP, the VSV for purge flow...

O MIL lights up

VSV for HC Adsorber and Catalyst System Vacuum Sensor for HC Adsorber and catalyst System Heated Oxygen Sensor Bank 1, Sensor 2 Heated Oxygen Sensor Bank 1, Sensor 1 31 30 29 28i27 26f 25 24 23 22 IG switch ON Throttle valve fully closed IG switch ON Throttle valve fully open Idling, A C switch OFF, Shift position in N or P position Idling, Intake air temp. 20 C 68 F Idling, Engine coolant temp. 80 C 176 F Maintain engine speed at 2,500 rpm for 2 min. after Maintain engine speed at 2,500 rpm...

Failsafe Chart

If any the following codes is recorded, the HV ECU enters the fail safe mode. Accelerator Pedal Position Sensor Circuit Malfunction Limited driving Creep vehicle speed Limited driving Creep vehicle speed Impossible to drive Normal driving when shift position is fixed Impossible to drive Normal driving when shift position is fixed Impossible to drive Normal driving when shift position is fixed Battery ECU Communication Circuit Malfunction ECM Communication Circuit Malfunction Airbag ECU...

Service Check Mode is operated as follows

01 -DB 160-72-5 01-E5 -AF-1 01-D6 -09-2 Fr-DISPLAY OK DISPLAY ES DCH Fr-DISPLAY OK DISPLAY ES DCH DTC clear switch Check resu t Memory clear switch 1 By performing system check and collecting data of diagnosis memory, this mode checks the current and past condition of the vehicle. 2 List of all components name or physical addresses. It displays only the components that have been connected at least once. 3 The check result is displayed for all components. 4 The check result is displayed by 6...

Combination meter ECU faulty

Indicators or warning lights do not light up. multiplex communication circuit input indicator or warning Check if the communication between the combination meter and the multiplex communication circuit is normal or not. Check if the bulb circuit plate is normal or not. Check open or short circuit in wire harness. Yes Check if the corresponding switch or ECU is normal or not.

Connect Obd Ii scan tool or Toyota handheld tester and read value of engine coolant temperature

Jinma 284 Ignition Switch Wiring

a Connect the OBD II scan tool or TOYOTA hand-held tester to the DLC3. b Turn the ignition switch ON and push the OBD II scan tool or TOYOTA hand-held tester main switch ON. Read temperature value on the OBD II scan tool or TOYOTA hand-held tester. OK Same as actual engine coolant temperature If there is open circuit, OBD II scan tool or TOYOTA hand-held tester indicates -40 C -40 F . If there is open circuit, OBD II scan tool or TOYOTA hand-held tester indicates 140 C 284 F or more. -40 C -40...

Precheck

To distinguish trouble and repair it, perform necessary electrical shock prevention operation See page IN-4 . Some portions of the wiring harness belong to the 288 V circuit, to which a high voltage is supplied. To avoid receiving an electrical shock, be sure to observe the following Wear insulating gloves during inspection. Before removing or installing parts and connectors, remove the service plug and conform that the voltage at the output terminals has dropped down to 0 V. When disengaging...

Toyota Avalon Cod B1141

B1156 Front Airbag

a Turn the ignition switch to ON. b For the connector on the airbag sensor assembly side between the side airbag sensor assembly LH and the airbag sensor assembly, measure the voltage between body ground and each of SSL , ESL, VUPL and SSL-. Repair or replace harness or connector between side airbag sensor assembly LH and air-bag sensor assembly. a Connect the connector to the side airbag sensor assembly LH . b Connect the connector to the airbag sensor assembly. c Connect negative - terminal...

Resistance kQ

Prius Hybrid Battery Repair Guide

After inspection, connect the connector and clear the DTC See page DI-363 . 6 Check for short circuit in harness and connector between pressure switch and brake ECU See page IN-41 . Check hydro motor relay No. 1 and No. 2. Remove the hydro motor relay No. 1 and No. 2 from the engine Check continuity between each pair of terminal of motor relay. OK Reference value Hydro motor relay No. 1 62 Q, Hydro motor relay No. 2 54 Q a Apply battery positive voltage between terminals 3 and 4. b Check...

Wiring Diagram

2 Check voltage between terminals 8, 15 and E of body ECU connector. Measure voltage between terminals 8, 15 and E. OK Proceed to next circuit inspection shown on problem symptoms table See page DI-695 . 3 Check wireharness and connector between body ECU and body ground See page IN-41 . Check and repair wireharness and connector between body ECU and battery.

Toyota Service Blog

B1159 Front Airbag Sensor

Disconnect the engine room No. 2 wire harness connector on the airbag sensor assembly side. For the connector on the airbag sensor assembly side between the front airbag sensor RH and the instrument panel wire harness, measure the voltage between body ground and each of SR and -SR. Repair or replace engine room No. 2 wire harness. Front Airbag Instrument Panel Sensor RH Wire Harness Disconnect the engine room No. 2 wire harness connector on For the connector on the airbag sensor assembly side...

Repair or replace harness or connector between front passenger airbag assembly and airbag sensor assembly

Www Toyota Airbag B0108 Com

a Connect the connector to the airbag sensor assembly. b Using a service wire, connect P and P- of the connector on the front passenger airbag assembly side between the front passenger airbag assembly and the airbag sensor assembly. c Connect negative - terminal cable to the battery, and wait at least for 2 seconds. Turn the ignition switch to ON, and wait at least for 20 seconds. Clear the DTC stored in memory See step 5 on page DI-509 . Turn the ignition switch to LOCK, and wait at least for...

See page DI inspection procedure

Toyota Camry

For the connector on the spiral cable side between the spiral cable and the steering wheel pad D squib , measure the voltage between D and body ground. a Connect the connector to the airbag sensor assembly. b Using a service wire, connect D and D- of the connector on the spiral cable side between the spiral cable and the steering wheel pad D squib . c Connect negative - terminal cable to the battery, and wait at least for 2 seconds. a Turn the ignition switch to ON, and wait at least for 20...

Prius Dlc3 Connector Where

Airbag Sensor Assembly Malfunction

a Connect the connector to the airbag sensor assembly. b Using a service wire, connect PL and PL- of the connector on the seat belt pretensioner LH side between the seat belt pretensioner LH and the airbag sensor assembly. c Connect negative - terminal cable to the battery, and wait at least for 2 seconds. a Turn the ignition switch to ON, and wait at least for 20 seconds. b Clear the DTC stored in memory See step 5 on page DI-509 . c Turn the ignition switch to LOCK, and wait at least for 20...

Calibration Of Torque Sensor Zero Point

1kz Ecu Pinout

Perform this operation in the following cases. When removing and installing steering wheel, tilt steering columnand electric power steering gear. a Place front wheels and steering wheel facing straight ahead. b In case of using TOYOTA hand-held tester Perform the torque sensor zero point initialization. If the EMPS ECU is replaced, however, this operation is not necessary. 2 Hook up the TOYOTA hand-held tester to the DLC3. 3 Select the TRQ SENS ADJUST mode on the TOYOTA hand-held tester. 4...

Diagnostic Trouble Code Chart

If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table below Proceed to the page given for that circuit. . Short in D squib circuit to ground Short in D squib circuit to B Front passenger airbag assembly squib Front passenger airbag assembly squib Short in P squib circuit to ground Front passenger airbag assembly squib Short in P squib circuit to B Front passenger airbag assembly squib Short in side squib RH circuit Side airbag assembly RH...

When removing the part turn the ignition switch OFF

Using SST 09843-18040, connect the terminals Tc and CG of DLC3. If any abnormality is not found when inspecting parts, inspect the ECU. If a malfunction code is displayed during the DTC check, check the circuit listed that code. For details of each code, turn to the page referred to under the See page for respective DTC No. in the DTC chart. Right front wheel speed sensor signal malfunction Right front, left front, right rear and left rear speed sensor Left front wheel speed sensor signal...

From the results of the above inspection the malfunctioning part can now be considered normal To make sure of this use

Celica Seat Belt Pretensioner

The side squib LH circuit consists of the airbag sensor assembly and side airbag assembly LH . It causes the SRS to deploy when the SRS deployment conditions are satisfied. For details of the function of each component, see OPERATION on page RS-2. DTC B0117 45 is recorded when ground short is detected in the side squib LH circuit. Short circuit in side squib LH wire harness to ground Side squib LH malfunction Airbag sensor assembly malfunction Prepare for inspection See step 1 on page DI-642 ....