Volkswagen Passat 1995 Official Factory Repair Manual page 1937

Multiport fuel injection and ignition system
Evaluating display group 003
Display group: 003
Display field: 4
-46.5 C
141.0 C
Approx. ambient
temperature
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Possible malfunction cause
Wiring open circuit or short
circuit to positive (B+)
Short circuit to Ground (GND)
Signal periodically interrupted
Checking wiring
- Check wiring
- Check IAT sensor
continuation at ambient temperature
- Switch ignition off.
- Connect VAG 1598/18 test box to ECM wiring harness
(arrow).
Malfunction elimination
Page 24-96
Page 24-98
Page 98 of 126
24-96
,
12/6/2004