P2123

Throttle/Pedal Position Sensor/Switch D Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine Light Is On
The engine goes into emergency mode
Unstable engine operation
Acceleration problems
Increased fuel consumption

Causes

Short circuit in the sensor circuit to positive
Malfunction of the throttle or pedal position sensor
Wiring harness damage
Poor contact in connectors
Engine control unit malfunction

How to Fix

Check the voltage in the sensor circuit
Inspect the wiring harness for damage
Check sensor and ECU connectors
Replace throttle/pedal position sensor if necessary
Test or replace the control unit if it is suspected of being faulty

Related codes

P2122 P2124 P2138