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EHPS / C1550 37

Read the instructions below then start the fault diagnostic procedure.

  C1550 37


Control Module. Internal Fault.



On-board diagnosis

Type of diagnosis:

Continually

Enable criteria:

Turn Ignition On

Fault criteria:

Control module on-board diagnostics has detected a "Timeout" fault.

System reaction to a fault:

None

OK report:

40 operating cycles

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

The DTC can be generated due to:

Voltage too low during starter motor cranking.
If +30 to the control module disappears when the engine is running.