P212A

Throttle Position Sensor/Switch G Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Unstable engine operation at idle
Acceleration problems
Check Engine light comes on
Reduced engine power
Jerking when pressing the gas pedal

Causes

Throttle position sensor G malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Wiring harness damage
Problems with the electronic control unit

How to Fix

Check the integrity of the sensor circuit
Inspect connectors and contacts for corrosion
Check the resistance of the throttle position sensor
Replace the faulty sensor if necessary
Reset error code after repair

Related codes

P2127 P2128 P2129