Is It Safe to Drive With a P0617 Code?
Common Symptoms of a P0617 Fault
P0617 Symptoms at a Glance
EML on
Starter motor noise continuing briefly after starting
Intermittent starting issues
Possible Causes of P0617
A P0617 code can be triggered by faults across several systems. Identifying the exact root cause requires proper diagnostic equipment and live data — not just reading the code.
Common Causes of P0617
Short to Power
The relay control wire is shorted to a voltage source.
Relay Failure
The starter relay contacts have stuck or failed.
Wiring or Connector Fault
Damaged wiring in the starter circuit.
ECU Output Driver Fault
The control module's output circuit for the relay has failed.
Why we don't list the exact part: A P0617 code tells you what's happening but not why. Replacing parts without diagnosis is the most common way drivers waste money. A proper diagnosis identifies the specific cause first.
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P0617 and Your MOT
A stored P0617 fault code will cause your car to fail its MOT due to the illuminated engine management light. Get the fault diagnosed and repaired, then have the code cleared before booking your test.