| 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 |
- DISCONNECT: Motronic Engine Control Module Power Supply Relay -J271- from the SB Fuse box in the engine compartment.
- CHECK: Motronic Engine Control Module Power Supply Relay -J271- socket terminal 30 to ground for voltage.
- CHECK: Motronic Engine Control Module Power Supply Relay -J271- socket terminal 86 to ground for voltage.
- SPECIFIED VALUE: Battery voltage.
-- Were Values obtained? |
-- YES:
-- NO:
|
| 3 |
- REMOVE: Engine Control Module -J623-.
- CONNECT: Jumper wire, Motronic Engine Control Module Power Supply Relay -J271- socket terminals 30 and 87.
- CHECK: Engine Control Module -J623- harness connector T91 / 5 and 6 to ground for voltage.
- SPECIFIED VALUE: Battery voltage.
-- Were Values obtained? |
-- YES:
-- NO:
|
| 4 |
- REMOVE: Jumper wire, Motronic Engine Control Module Power Supply Relay -J271- socket terminals 30 and 87.
- CHECK: Motronic Engine Control Module Power Supply Relay -J271- socket terminal 85 to the Engine Control Module -J623- harness connector T91 / 7 for resistance.
- SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Was Value obtained? |
-- YES:
-- NO:
|
| 5 |
- REMOVE: Jumper wire, Motronic Engine Control Module Power Supply Relay -J271- socket terminals 30 and 87.
- REMOVE: Engine Control Module -J623-.
- REMOVE: Appropriate fuse.
- CHECK: Downstream (output) side of the fuse to Engine Control Module -J623- harness connector T91 / 5 and 6 for resistance.
- SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained? |
-- YES:
-- NO:
|
| 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.
- 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.
|