| 1 |
- PERFORM: Preliminary Check to verify the customers concern. Refer to PRELIMINARY CHECK
.
-- Was Complaint verified? |
-- YES:
-- NO:
- GATHER more information from customer about the complaint.
|
| 2 |
- CONNECT: Scan Tool.
- START or CRANK: Engine.
- CHECK: Engine RPM.
- SPECIFIED VALUE: Cranking or Idle RPM.
- IGNITION: OFF.
-- Was Value obtained? |
-- YES:
- CONDITION: May be intermittent.
- PERFORM: Visual Inspection of wiring and component.
- CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals.
- REPAIR: Faulty wiring or connector.
-- NO:
|
| 3 |
- DISCONNECT: Engine Speed Sensor -G28- harness connector.
- IGNITION: ON.
- CHECK: Engine Speed Sensor -G28- wiring connector terminals 1 to 3 for voltage.
- SPECIFIED VALUE: About 5.0 V.
- IGNITION: OFF.
-- Was Value obtained? |
-- YES:
-- NO:
|
| 4 |
- REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information.
- CHECK: Engine Speed Sensor -G28- harness connector terminal 2 to the Engine Control Module - J623- harness connector T60 / 43 for resistance.
- SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Was Value obtained? |
-- YES:
- REMOVE: Engine Speed Sensor -G28-. Refer to appropriate Service Information.
- CHECK: Engine Speed Sensor -G28- wheel for proper seating, damage and/or run - out. Refer to appropriate Service Information.
- Sensor wheel OK
- REPLACE: Engine Speed Sensor -G28-. Refer to appropriate Service Information.
- GO TO: Step 6 Engine Speed Sensor - G28-, CHECKING => 6 .
-- NO:
- CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals.
- REPAIR: Faulty wiring or connector.
- GO TO: Step 6.
|
| 5 |
- REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information.
- CHECK: Engine Speed Sensor -G28- harness connector terminal 1 to the Engine Control Module - J623- harness connector T60 / 58 for resistance.
- CHECK: Engine Speed Sensor -G28- harness connector terminal 3 to the Engine Control Module - J623- harness connector T60 / 56 for resistance.
- SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained? |
-- YES:
-- NO:
- CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals.
- REPAIR: Faulty wiring or connector.
- GO TO: Step 6 Engine Speed Sensor - G28-, CHECKING => 6 .
|
| 6 |
- Final Procedure
- Perform a road test to verify repair.
-- Does the original DTC return? |
-- YES:
- CHECK: Engine Control Module -J623- harness connector for any damaged, pushed-out pins.
- REPAIR: As necessary.
- Clear the DTC's. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY
.
- Repair is complete. Generate Readiness Code. Refer to READINESS CODE
.
- Return vehicle to Customer.
- If all electrical connections are OK:
- REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information.
- Repair is complete. Generate Readiness Code. Refer to READINESS CODE
.
- Return vehicle to Customer.
-- NO:
- Perform the diagnostic procedure for any DTC's.
- If no DTC's return the repair is complete.
- Return vehicle to customer.
|