Inspection Procedure 15: No. 2 Injector System
OPERATION
- Power is supplied to the No. 2 injector (terminal No.
1) from the engine-ECU (terminal No. 124).
- The power voltage is earthed to the engine-ECU (terminal No. 148) from the No. 2
injector (terminal No. 2).
FUNCTION
- The engine-ECU controls the power supply interval of
the No. 2 injector.
- The fuel injection amount of the No. 2 injector depends on the power supply interval.
PROBABLE CAUSES
- Failed No. 2 injector
- Open/short circuit or harness damage in injector circuit or loose connector contact
- Failed engine-ECU
DIAGNOSIS PROCEDURE |
STEP 1. Connector check: B-104 No. 2 injector connector |
Q.
Is the check result normal?
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Go to Step 2 . |
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Repair or replace the connector. |
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STEP 2. Connector check: B-16 engine-ECU connector |
Q.
Is the check result normal?
|
Go to Step 3 . |
|
Repair or replace the connector. |
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STEP 3. Check harness between B-104 (terminal No. 1) No. 2 injector connector and B-16 (terminal No. 124) engine-ECU connector. |
|
Q.
Is the check result normal?
|
Go to Step 4 . |
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Repair the damaged harness wire. |
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STEP 4. Check harness between B-104 (terminal No. 2) No. 2 injector connector and B-16 (terminal No. 148) engine-ECU connector. |
|
Q.
Is the check result normal?
|
Go to Step 5 . |
|
Repair the damaged harness wire. |
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STEP 5. Replace the No. 2 injector. |
|
Q.
Does trouble symptom persist?
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Replace the engine-ECU. |
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The check is end. |
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