Electrical testing: Requirements

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1995 Volkswagen Jetta III, 1995 Volkswagen Golf III, 1995 Volkswagen Cabrio, 1994 Volkswagen Jetta III, and 1994 Volkswagen Golf III. However, it is still accessible from the selected car via links, so may be relevant.

Battery Positive Voltage (B+) OK
Fuse 18 (S18) OK
Ground (GND) connections on engine and transmission OK (location of engine Ground (GND) connection: below lower part of intake manifold)
Fuel Pump (G6) and Fuel Pump Relay (J17) OK

Disconnect connector -1- from Motronic Engine Control Module -2- (J220) with ignition off (location of control module: in right plenum).

Fig 1: Disconnecting Connector From Motronic Engine Control Module With Ignition Off
Connect VAG 1598/18 to Motronic Engine Control Module harness connector.
Perform test according to the table. See REQUIREMENTS .

CAUTION: Switch multimeter to the appropriate measuring range before connecting the test leads to avoid damaging the electronic components.

NOTE: After electrical testing on vehicles with automatic transmission, the DTC "Engine/Trans. Electrical Connection: disconnected" stored by the test must be erased. See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, ERASING (FUNCTION 05) .