P0615 Buick Start Signal Circuit
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)
– 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)
What about the obd code?
The P0615 Buick codes is detected when park/neutral (PNP) relay (starter relay) is switched