P2122 OBD Code Definition:
P2122 Throttle/Pedal Position Sensor/Switch D Circuit Low Input
P2122 OBD Code Description:

Possible Symptoms:

• MIL On

Possible Causes:

• Faulty Accelerator Pedal Assembly
• Wiring Harness Issue for Accelerator Pedal Assembly

Possible Solutions:

• Inspect Throttle Pedal and Wiring Harness. See Factory Repair Manual.

Tech Notes:

The signal voltage for the Accelerator Pedal could be shared with other engine components, O2 sensors for example.