P2102 - OBD II Trouble Code

Our automotive experts have put together the following information about the P2102 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2102 code.

OBD II Fault Code

• OBD II P2102

OBD-II Code Decreased engine performance is defined as a Throttle Actuator "A" Control Motor Circuit Low

The throttle motor opens and closes the throttle plate, allowing more or less air to flow through the engine based on the driver's request for power. The throttle motor is controlled by the engine computer (PCM). If the PCM does not see the requested movement from the throttle motor, code P2102 will set. The PCM may also put the engine into "limp home mode", limiting the available power from the engine to prevent unwanted acceleration.

Decreased engine performance Symptoms

• Decreased engine performance
• Engine may enter limp home mode (reduced performance)

Common Problems That Trigger the P2102 Code

• Powertrain Control Module (PCM) failure
• Throttle control motor failure
• Wiring issue