Checking wiring
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If the manufacturers test box is being used. Perform the following step.
- Install the test box Adapter - 68 Pin VAG1598/18.
If the manufacturers test box is not being used. Perform the following step.
- Remove the Motronic Engine Control Module (ECM) J220
- Using a Multimeter , Check the Ignition Coil electrical harness connector to the Motronic Engine Control Module (ECM) J220 electrical harness connector T80 for an open circuit.
| Ignition Coil N152 electrical harness connector terminal | Motronic Engine Control Module (ECM) J220 electrical harness connector T80 terminal or test box socket |
|---|---|
| 3 | 78 |
| 1 | 71 |
Specified value: 1.5 Ω Max.
If the specification was not obtained:
- Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
- Check the wiring connection for damage, corrosion, loose or broken terminals.
- If necessary, repair the faulty wiring connection.
- Re-enable the power supply to the Fuel Injectors N30, N31, N32, N33, by reinstalling Fuse 29 (on fuse panel B) from the fuse holder SB29, in the E-box, plenum chamber.
- Re-connect the Ignition Coil N152 electrical harness connector to the Ignition Coil N152.
- Install the engine cover with air filter.
- Erase the DTC memory. Refer to DIAGNOSTIC MODE 04: RESET/DELETE DIAGNOSTIC DATA
- Perform a road test to verify repair.
If the DTC does not return:
Repair complete, Generate readiness code. Refer to READINESS CODE, GENERATING .
- End diagnosis.
If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK:
- Replace the Motronic Engine Control Module (ECM) J220.
- Assembly is performed in the reverse of the removal.