Test Procedure
WARNING: This page is about a different car, the 2018 Audi A3 Quattro, 2017 Audi A3 Quattro, 2016 Audi A3 Quattro, 2016 Audi A3, and 2015 Audi A3 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
| Step |
Procedure |
Result / Action to Take |
| 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 |
- IGNITION: OFF.
- DISCONNECT: Harness connector from suspect Fuel Injector --.
- CHECK: Suspect Fuel Injector -- component connector terminals 1 to 2 for resistance (refer to appropriate wiring diagram for correct terminal and connector locations).
- SPECIFIED VALUE: 0.5 - 15 Ω (@ approx. 20° C).
-- Was Value obtained? |
-- YES:
-- NO:
- REPLACE: Suspect Fuel Injector -- (s). Refer to appropriate Service Information.
- GO TO: Step 4.
|
| 3 |
- REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information.
- CHECK: Suspect Fuel Injector -- harness connector terminal 1 to the Engine Control Module - J623- harness connector T105 / xx for resistance (refer to appropriate wiring diagram for correct terminal and connector locations).
- CHECK: Suspect Fuel Injector -- harness connector terminal 2 to the Engine Control Module - J623- harness connector T105 / xx for resistance (refer to appropriate wiring diagram for correct terminal and connector locations).
- SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained? |
-- YES:
- TIP: The Fuel Injector -- may fail under loaded operation; please swap a known good Fuel Injector -- prior to continuing to the next step.
- GO TO: Step 4.
-- NO:
- 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.
|
| 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-. Refer to appropriate Service Information.
- 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.
|