Volkswagen Passat 1995 Official Factory Repair Manual page 1743

On Board Diagnostic (OBD II)
Cause:
Malfunction Indicator Lamp (MIL) -K83- is
permanently activated by short circuit to Ground
(GND)
Malfunction cause:
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If the MIL lights with ignition switched on,
continue check as follows:
- Start engine and run at idle speed: MIL must go
out after a few seconds.
If the MIL does not go out:
- Check DTC memory
If no malfunction is stored:
Remedy:
- Switch ignition off
- Connect VAG 1598/18 test box
- Check resistance between test box socket 5 and
vehicle Ground (GND). Specification:
If the specification is not attained:
Short circuit to Ground (GND) in the activation
wire from Engine Control Module (ECM) -J220-
to MIL
- Locate and eliminate this malfunction using wiring
diagram
If the specification
short circuit to Ground (GND) can be found:
ECM -J220- faulty
- Replace ECM, erase Diagnostic Trouble Code
(DTC) memory.
Page 01-12 .
ohms ( ) is attained and no
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12/6/2004