SAAB WIS ONLINE

EDC16 / P0380 54

Read the instructions below then start the fault diagnostic procedure.

Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)

  P0380 54


Glow Control Unit. Short to B+

Fault symptom

Fault indicator lamp (for further information see WIS Fault diagnosis, general)

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.
Output activated.

Fault criteria:

Output short circuit to B+ for more than 0.6 s.

System reaction to a fault:

Control module output switched off.

OK report:

Fault criteria NOT fulfilled for 0.6 s.

Checking the wiring harness

Faults in the control module female connector can be the cause of the DTC. Check the connector with respect to oxidation, depressed pins and pin clamping force.
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:

Data link from glow plug control module should switch high/low inversely to activation lead from EDC 16 to glow plug control module.
Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault: