P095B: Gear Shift Position Circuit Range/Performance C

What it means

The gear shift position circuit C reports a circuit range/performance fault. Gear shift position feedback is unreliable on this channel.

At a glance

• Usually lights the check-engine light
• The engine or gearbox may go into limp mode

How it works

Gear shift position circuit C carries position feedback from a transmission position sensor to the control module. The module checks whether the signal changes through the expected range as the selector moves. P095B sets when circuit C produces a signal that is present but outside the expected range or does not track movement correctly.

Common causes

Most likely first.

1. Position sensor failed
2. Wiring fault
3. Sensor element aged beyond calibration window

Symptoms

• Check engine or transmission warning light on
• Harsh, delayed, or missing shifts
• Possible limp mode (locked in one gear)
• Slipping or shuddering during gear changes

How to diagnose it

1. Record freeze-frame data and compare live position data for circuit C with selector movement and any related position channels.
2. Move the selector through its available positions while observing whether circuit C changes smoothly and reaches the expected states.
3. Inspect the position sensor, its connector, and circuit C wiring for wear, damage, loose terminals, or corrosion.
4. Check the sensor supply and ground, then measure circuit C output across selector positions against the manufacturer's specification.
5. If the sensor output is correct at the sensor but not at the module, test the circuit C harness for resistance, shorts, or poor connections.

Common fixes

• Clean and secure the position sensor connector and repair poor contacts.
• Repair damaged wiring affecting position circuit C.
• Replace a sensor whose circuit C output falls outside the expected range or fails to track selector movement.
• Clear the code and verify position feedback through the selector range and confirm limp mode is no longer active.

Can I keep driving?

Treat this as a transmission fault: avoid driving if the gear display or actual gear does not match the selector, or if the vehicle enters limp mode. A short, cautious trip may be possible if shifting is predictable, but continued driving can lead to missed shifts or slipping.