Start Signal Circuit
Table of contents
P0615 ISUZU 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)
How do I fix code P0615 ISUZU?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P0615 ISUZU code
The cost of diagnosing the P0615 ISUZU code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The P0615 codes is detected when park/neutral (PNP) relay (starter relay) is switched “ON” other than at “P” or “N” position. (Or when switched “OFF” at “P” or “N” position).
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0615 ISUZU Description
Transmission Control Module (TCM) controls park/neutral (PNP) relay (starter relay) in IPDM E/R. TCM switches PNP relay “ON” at “P” or “N” position and allows to crank engine. Then it prohibits cranking other than at “P” or “N” position.