Definition of Code P0915
A P0915 occurs when the vehicle’s Powertrain Control Module (PCM) has detected an insufficient range in the transmission shift position circuit.
What Does Code P0915 Mean?
The transmission shift system is responsible for determining the engine’s output power. In the case of a P0915, the PCM has detected a limitation in the gear lever’s ability to cover its full range. This can lead to a series of limitations for the transmission system and the vehicle’s operation. A P0915 occurs when there is a reported discrepancy in the detected position between two sensors connected to the PCM.
What Causes Code P0915?
A P0915 fault code is most often caused by faulty wiring. Corroded, damaged, disconnected, or broken wiring and/or circuits can be the source of the malfunction. In rare cases, the vehicle’s PCM may be defective. This instance can also result in a P0915.
What Are the Symptoms of Code P0915?
A P0915 fault code will result in harsh shifting, reduced fuel consumption, and in the worst case, an inability of the vehicle to shift gears.
How Does a Mechanic Diagnose Code P0915?
A P0915 code can be identified with an OBD-II scanner. All wiring and circuits related to the sensors and transmission systems must be carefully inspected for any signs of damage, corrosion, or disconnection.
Common Mistakes When Diagnosing Code P0915
Transmission components may be mistakenly replaced when the sensors themselves are faulty.
How Severe Is Code P0915?
Depending on the extent of the sensor deviation (and whether the issue is related to the transmission or the sensor itself), problems can range from harsh shifting to an inability to shift gears. In the worst case, code P0915 will render the vehicle unusable. Code P0915 should be serviced as soon as possible.
What Repairs Can Fix Code P0915?
- Check the primary and secondary sensors connected to the PCM and verify their proper operation.
- All components identified as damaged or defective should be addressed accordingly.
- Any wiring identified as broken or corroded should be repaired or replaced as appropriate.
- In rare cases, the PCM itself may be at fault. If repairs are needed for the PCM, a memory-saving device should be connected to avoid the lengthy reprogramming process.