Repair Or Replace Air Injection Control Driver Power Source Circuit

PERFORM ACTIVE TEST USING INTELLIGENT TESTER

Standard Voltage

Start the engine and warm it up.

Turn the ignition switch to OFF.

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON and turn the tester ON.

Select the following menu items: DIAGNOSIS /

ENHANCED OBD II / SYSTEM CHECK / AIR INJ

CHECK / MANUAL OPERATION / AP: ON, ASV: OPEN

Start the engine after the tester initialization is finished.

Operate the AIR system using SYSTEM CHECK

function and measure the voltage between the terminals of the ECM connector.

Turn the ignition switch to OFF.

NOTICE:

• Do not perform the SYSTEM CHECK operation repetitively. It may cause damage to the system. If necessary, leave an interval of several minutes between SYSTEM CHECK operations.

• When performing the AIR INJ CHECK operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch turned to ON or the engine running.

• Turn the ignition switch to OFF when the AIR INJ CHECK operation finishes.

Intelligent Tester Operations

Voltmeter Connections

Specified Conditions

AP: ON, ASV: OPEN

AIRP (E4-11) - E1 (E4-3)

3.5 to 7.5 V

AP: OFF, ASV: CLOSE

AIRP (E4-11) - E1 (E4-3)

10 V or more

AP: ON, ASV: OPEN

AIRV (E4-24) - E1 (E4-3)

3.5 to 7.5 V

AP: OFF, ASV: CLOSE

AIRV (E4-24) - E1 (E4-3)

10 V or more

Go to step 12

REPLACE AIR INJECTION CONTROL DRIVER

NEXT

CHECK WHETHER DTC OUTPUT RECURS (DTC P2444 AND/OR P2445)

(a) Start the engine and warm it up.

(b) Turn the ignition switch to OFF.

(c) Connect the intelligent tester to the DLC3.

(d) Turn the ignition switch to ON and turn the tester ON.

(f) Select the following menu items:

ECM Connector

DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK / AIR INJ CHECK / AUTOMATIC OPERATION.

(g) Start the engine after the tester initialization is finished.

(h) Perform the SYSTEM CHECK operation by pressing ENTER.

(i) After operating the AIR system, press the ENTER button to confirm the AIR system pending codes.

(j) Check PENDING DTCs.

(k) Turn the ignition switch to OFF. OK:

No pending DTC output. NOTICE:

• When performing the AIR INJ CHECK operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch turned to ON or the engine running.

• Turn the ignition switch to OFF when the AIR INJ CHECK operation finishes.

NEXT

CHECK HARNESS AND CONNECTOR (ECM - AIR INJECTION CONTROL DRIVER)

ECM Connector

Wire Harness Side:

AID Connector

(a) Disconnect the E4 ECM connector.

(b) Disconnect the A7 AID connector.

(c) Check the resistance.

Standard Resistance (Check for open)

Tester Connections

Specified Conditions

Below 1 Q

(d) Reconnect the ECM and AID connectors.

REPAIR OR REPLACE HARNESS AND CONNECTOR

Front View

REPLACE ECM

ECM / PCM Internal Engine Off Timer Performance

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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