P2610moderate severityPowertrain
ECM/PCM Internal Engine Off Timer Performance
on 2013 BMW M3 E90 4.0L V8 S65 · RWD
What this code means
The ECM internal timer that tracks engine-off time is malfunctioning.
Symptoms
- Check engine light
- Incorrect cold-start enrichment
- Extended crank time
Common causes
- ECM internal fault
- Keep-alive memory power loss
- Battery disconnected frequently
Diagnostic steps
- Check ECM keep-alive power circuit
- Verify battery connections
- Check for parasitic drain
Repair notes
Ensure battery and keep-alive circuits are intact. ECM replacement if internal timer failure confirmed.
Other Powertrain codes on this vehicle
P0001
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P0002
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P0003
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P0004
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P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1