P2102 indicates the powertrain control module has detected a low voltage condition in the throttle actuator control motor circuit. This typically prevents the throttle plate from opening correctly, limiting engine power. The issue usually lies within the throttle body assembly, wiring harness, or electrical connections rather than the control module itself.
The electric motor inside the throttle body often fails internally, causing low circuit voltage.
Wires near the throttle body or engine harness may be chafed, broken, or shorted to ground.
Moisture or heat can cause poor contact at the throttle body plug, reducing voltage.
The dedicated power supply circuit for the throttle motor may be interrupted by a failed fuse.
A high-resistance ground path for the actuator circuit can trigger a low voltage reading.
Internal driver failure within the PCM is possible but statistically uncommon for this code.
No, PCM failure is rare for this code; the throttle body or wiring is the usual cause.
It is unsafe; the vehicle may enter limp mode or stall without warning.
Unlikely, as P2102 indicates an electrical circuit fault, not carbon buildup.
No, this code specifically relates to the throttle body motor circuit, not the pedal sensor.