| 1 |
- PERFORM: Preliminary Check to verify the customers complaint. Refer to: PRELIMINARY CHECK
.
-- Was Complaint verified? |
-- YES:
-- NO:
- GATHER more information from customer about the complaint.
|
| 2 |
- CONNECT: Scan Tool.
- ROAD TEST: Vehicle.
- CHECK: Scan Tool to Speedometer for accuracy.
- SPECIFIED VALUE: Difference ≤ 10%.
-- 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.
- GO TO: Step 4 VEHICLE SPEED SIGNAL, CHECKING (4) .
-- NO:
|
| 3 |
- CHECK: ABS system.
- CHECK: ABS DTC's.
-- Was the ABS system OK? |
-- YES:
-- NO:
|
| 4 |
- 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.
- If all electrical connections are OK:
- REPLACE: Engine Control Module -J623-.
- 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.
-- NO:
- Perform the diagnostic procedure for any DTC's.
- If no DTC's return the repair is complete.
- Return vehicle to customer.
|