What does code P0616 mean?

Q: What does code P0616 mean?

Starter Relay Circuit Low. P0616 means the powertrain control module (PCM) has detected a low-voltage condition on the starter relay control circuit, which is the wire the PCM uses to command the relay that engages the starter. The PCM expects to see a voltage near battery level when the relay is not commanded and near ground when it is, and a persistent low reading tells it the circuit is shorted to ground or the relay coil has failed.

DTC codes / P06xx · Computer and output circuits / P0616

P0616Starter Relay Circuit Low

P0616 means the powertrain control module (PCM) has detected a low-voltage condition on the starter relay control circuit, which is the wire the PCM uses to command the relay that engages the starter. The PCM expects to see a voltage near battery level when the relay is not commanded and near ground when it is, and a persistent low reading tells it the circuit is shorted to ground or the relay coil has failed.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaComputer and output circuits

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.