Golf GTI L4-2.0L (ABA) (1997)
-
Replace HO2S 2 -G108- (after three way catalytic converter).
Checking Heated Oxygen Sensor (HO2S) wiring.
-
Connect VAG 1598/18 test box to ECM wiring harness.
-
Separate 4-pin connector -2- (brown) to HO2S 2 -G108- (after three way catalytic converter).
-
Check wiring between test box and 4-pin connector to ECM for open circuit according to wiring diagram.
-
Terminal 3 and test box socket 58
-
Terminal 4 and test box socket 13
Resistance: Maximum 1.5 Ohms.
-
Additionally, check the wiring to 4-pin connector for short circuit to one another.
Terminal 4 and test box socket 58
Specification: Infinite Ohms.
-
Check shielding for short circuit to HO2S wiring.
-
Terminal 4 and test box socket 56
-
Terminal 3 and test box socket 56
Specification: Infinite Ohms
If no wiring malfunction is detected:
-
Replace Engine Control Module (ECM) -J220-.
-
Read the readiness code. If DTC memory has been erased, repair must be verified via appropriate display group, Readiness code, creating.