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DTC › COO4 COO4 / 4100

Start signal

â–¶ How to fix

Check the starter lock including wiring and connectors. Check the starter lock's spring-loaded function.Measure the voltage on coordinator pin 32. The pin should be supplied with voltage (24 V) only in the starter lock's start position.Check also whether the engine control unit has generated any fault codes.

What you'll see

No driver-visible symptom recorded.

System reaction

No system-reaction text recorded.

Diagnostic depth

Detection

The start signal (50) from the starter lock to the coordinator has been active for too long. The fault code is set if coordinator pin 32 receives an uninterrupted power supply for a period of time longer than five minutes.

Possible cause

Possible cause is an internal fault in the starter lock.

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