Volkswagen Passat 1995 Official Factory Repair Manual page 1283

Components of engine, checking
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If specified value is obtained:
- Check Ground (GND) activation of oxygen
sensor heater Page 24-30
Checking Ground (GND) activation of oxygen
sensor heating
- Connect test box to control module wiring
harness Page ST-11
wiring test.
- Check wires between test box and 4-pin
connector to Engine Control Module (ECM) for
open circuit according to wiring diagram.
Terminal 2 + socket 66
Wire resistance: max. 1.5
- Also check wires for short circuit to B+ or
Ground (GND).
Specified value:
- Check wire between 4-pin connector terminal 1
and Fuel Pump (FP) Relay -J17- for open circuit
according to wiring diagram.
Wire resistance: max. 1.5
If no malfunctions are found in wires:
- Replace Motronic Engine Control Module (ECM)
-J220- Page 24-105
Page 6 of 62
24-30
.
, connect test box for
.
6/12/2004