Possible causes

– Park/neutral position (PNP) relay (starter relay)
– Park/neutral position (PNP) relay (starter relay) harness is open or shorted
– Park/neutral position (PNP) relay (starter relay) circuit poor electrical connection
– Faulty Transmission Control Module (TCM)

When is the code detected?

The P0616 code is detected when the Engine Control Module (ECM) has detected an intermittent short to ground on the starter relay control circuit.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Engine may not start

P0616 NISSAN Description

Transmission Control Module (TCM) controls park/neutral (PNP) relay (starter relay) in IPDM E/R. TCM switches PNP relay