| 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 concern.
|
| 2 |
- DISCONNECT: Motronic Engine Control Module Power Supply Relay -J271-
- CONNECT: jumper wire, Motronic Engine Control Module Power Supply Relay -J271- socket terminal 5 to 3.
- IGNITION: ON
- SPECIFIED VALUE: Battery voltage at fuses for engine management. (Refer to wiring schematic for component and fuse location).
- IGNITION: OFF
-- Was value obtained? |
-- YES:
-- NO:
|
| 3 |
- IGNITION: ON
- CHECK: Motronic Engine Control Module Power Supply Relay -J271- connector terminals 2 to ground for voltage
- CHECK: Motronic Engine Control Module Power Supply Relay -J271- connector terminals 3 to ground for voltage
- SPECIFIED VALUE: Battery voltage
- IGNITION: OFF
-- Was value obtained? |
-- YES:
-- NO:
- CHECK: wiring for open, high resistance, short or connector for damage, corrosion, loose or broken terminals
- REPAIR: faulty wiring or connector
- REPLACE: any open fuses
- GO TO: Step 5
|
| 4 |
- REMOVE: Engine Control Module -J623-. Refer to the appropriate repair information.
- CHECK: Motronic Engine Control Module Power Supply Relay -J271- connector terminal 1 to Engine Control Module -J623- wiring connector terminal T91 / 87 for resistance
- SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω)
-- Was value obtained? |
-- YES:
- REPLACE: Motronic Engine Control Module Power Supply Relay -J271-. Refer to the appropriate repair information.
- PERFORM: Road Test to verify repair.
- FAULT DOES NOT RETURN:
- FAULT DOES RETURN: no malfunction is detected in the wiring.
- REPLACE: Engine Control Module -J623-. Refer to proper repair information for removal and replace procedures.
- GO TO: Step 5
-- NO:
- PERFORM: Visual Inspection of wiring and component
- CHECK: wiring for open, high resistance, short or connector for damage, corrosion, loose or broken terminals
- REPAIR: faulty wiring or connector
- GO TO: Step 5
|
| 5 |
- Final Procedure
- Perform a road test to verify repair.
- Do any DTC's return:
|
-- YES:
-- NO:
- Repair is complete, Generate readiness code. Refer to READINESS CODES
.
- Return vehicle to Customer
|