P0916
UniversalThe Powertrain Control Module (PCM) detects a voltage reading from the gear shift position circuit that is lower than the manufacturer's specified range. This indicates an electrical issue within the circuit.
Medium SeverityThis code indicates an electrical problem where the gear shift position sensor circuit is reporting a voltage that is too low. This can lead to issues with the transmission accurately knowing what gear the vehicle is in, potentially causing erratic shifting or preventing the vehicle from starting.
⚠️ Before You Begin (Safety First)
Always ensure the vehicle is parked on a level surface with the parking brake engaged before performing any inspections or repairs. Disconnect the battery before working on electrical components to prevent accidental short circuits or electrical shocks. Wear appropriate personal protective equipment.
Common Symptoms
- Check Engine Light illuminated
- Difficulty shifting gears
- Transmission stuck in a specific gear (limp mode)
- Vehicle may not start
- Erratic transmission behavior
- No power to transmission solenoids
Common Causes
- Faulty gear shift position sensor
- Damaged or corroded wiring in the circuit
- Loose or corroded connectors
- Short to ground in the circuit
- Faulty Powertrain Control Module (PCM)
Frequently reported on: General/Universal
Diagnostic Steps
- Inspect all wiring and connectors related to the gear shift position sensor for visible damage, corrosion, or looseness.
- Check for proper voltage and ground at the sensor using a multimeter, referring to your vehicle's service manual.
- Test the continuity of the sensor circuit.
- If the sensor is accessible and affordable, consider replacing the gear shift position sensor.
- Clear the code and test drive the vehicle to see if the issue returns.
👨🔧 When to Call a Professional
If after checking basic wiring and connectors, the issue persists, or if you suspect internal transmission issues, it's best to consult a professional mechanic. Transmission-related diagnoses can be complex and require specialized tools.
Commonly Asked Questions
What is a gear shift position sensor?
It's an electronic sensor that tells the engine and transmission computer what gear the selector is currently in (e.g., Park, Reverse, Drive).
Can I drive with a P0916 code?
It's not recommended as it can lead to erratic shifting, transmission damage, or prevent the vehicle from starting. Drive only if necessary and cautiously.
Is replacing the gear shift position sensor difficult?
It varies by vehicle. On some, it's easily accessible; on others, it may require partial dismantling of console or transmission components, making it a medium difficulty DIY.
What tools do I need to diagnose P0916?
A basic OBD-II scanner, a multimeter for electrical testing, and standard hand tools for access and replacement.
Could a P0916 code mean my transmission is bad?
Not directly. It usually points to an electrical issue with the sensor or its wiring, but ignoring it can lead to transmission damage over time.