EDC16 / P1675 54
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Warning lamp lights.
Crankcase Ventilation Heater Circuit, Short to B+
Fault symptom
Warning lamp lights.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| Air temperature is above -15 degrees C. |
| Engine running more than 5 minutes. |
| Air temperature between 15-18 degrees C. |
| Air temperature must not exceed 18 degrees within 5 minutes of starting the engine. |
Fault criteria:
| Control module output short-circuit to B+. |
System reaction to a fault:
| Control module output switched off. |
Checking the wiring harness
Jiggle the wiring harness at several points to detect intermittent breaks or short circuits. Check also the connector for oxidation or loose pins.
Diagnostic help
Diagnosis regards:
| Electrical fault in connecting leads or component. |
Functions in the diagnostic tool related to the fault:
| Crankcase Ventilation Heater |
| (See also description of readings/activations in diagnostic tool) |
