Checking wiring

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.
Fig 1: 4-Pin Electrical Harness Connector & Terminals

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.
Fig 2: Identifying Ignition Coil With Final Output Stage Black 6-Pin Connector

• 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.