| 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 |
- IGNITION: OFF.
- REMOVE: Evaporative Canister.
- Plug or Cap off the Fuel Tank Pressure Sensor -G400- hose going to the vent filter.
- CONNECT: Hand vacuum pump to the Fuel Tank Pressure Sensor -G400- and apply 0.700 bar and see if the vacuum holds.
-- Did the vacuum hold? |
-- YES:
-- NO:
|
| 3 |
- DISCONNECT: Fuel Tank Leak Detection Control Module -J909 - harness connector.
- IGNITION: ON.
- CHECK: Fuel Tank Leak Detection Control Module -J909 - harness connector terminal 1 to ground for voltage.
- CHECK: A8 Only Fuel Tank Leak Detection Control Module -J909 - harness connector terminal 4 to ground for voltage.
- IGNITION: OFF.
- SPECIFIED VALUE: Battery voltage.
-- Was Value obtained? |
-- YES:
-- NO:
|
| 4 |
- REMOVE: Engine Control Module - J623-.
- DISCONNECT: Fuel Tank Pressure Sensor -G400-.
- CHECK: Fuel Tank Leak Detection Control Module -J909 - harness connector terminal 2 to the Engine Control Module - J623- harness connector T91 / 89 for resistance.
- CHECK: A8 Only Fuel Tank Leak Detection Control Module -J909 - harness connector terminal 2 to the Engine Control Module - J623- harness connector T91 / 69 for resistance.
- CHECK: Fuel Tank Leak Detection Control Module -J909 - harness connector terminal 3 to the Engine Control Module - J623- harness connector T91 / 69 for resistance.
- CHECK: A8 Only Fuel Tank Leak Detection Control Module -J909 - harness connector terminal 3 to the Engine Control Module - J623- harness connector T91 / 89 for resistance.
- SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained? |
-- YES:
-- NO:
|
| 5 |
- 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-.
- 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.
|