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PRE-RELEASE

PSG16 / P0670 F6

Read the instructions below then start the fault diagnostic procedure.

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

  P0670 F6


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

Data link from glow plug control module should switch high/low inversely to activation lead from PSG 16 to glow plug control module.

PRE-RELEASE