Gear Shift Position Circuit Range/Performance
The P0915 code indicates that the Powertrain Control Module (PCM) has detected an issue with the gear shift position circuit, specifically that the signal from the gear shift position sensor is out of the expected range or not performing correctly. This sensor tells the PCM which gear the driver has selected (Park, Reverse, Neutral, Drive, etc.). A range/performance fault means the sensor's voltage or resistance readings are not within the normal operating parameters, which can lead to incorrect gear selection or transmission operation.
01. Most Common Causes
- Faulty gear shift position sensor
- Wiring or connector issues in the sensor circuit
- Corrosion or damage to the sensor or its connections
- PCM software or hardware malfunction
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Transmission stuck in one gear or fails to shift
- Incorrect gear indicator on the dashboard
- Vehicle may not start or shift out of Park
03. Step-by-Step Diagnosis
Step 1: Use an OBD2 scanner to confirm the code and check for any other related codes.
Step 2: Visually inspect the gear shift position sensor and its wiring for damage, corrosion, or loose connections.
Step 3: Test the sensor's voltage and resistance with a multimeter and compare to manufacturer specifications.
Step 4: If the sensor is faulty, replace it; if wiring is damaged, repair or replace as needed.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive with this code as it can cause unpredictable transmission behavior, including sudden gear engagement or inability to shift, which may lead to an accident.
How much does it cost to fix?▼
The cost to fix P0915 typically ranges from $50 to $150 for parts and labor, depending on whether the sensor or wiring needs replacement and the vehicle's make and model.