P2123critical severityPowertrain
Throttle/Pedal Position Sensor/Switch D Circuit High
on 2017 Chevrolet Impala 2.5L I4 Ecotec · AWD
What this code means
High voltage from accelerator pedal position sensor D.
Symptoms
- Limp mode
- Unintended acceleration
- Check engine light
Common causes
- Open ground circuit
- Short to voltage
- Failed sensor
Diagnostic steps
- Measure voltage at APP sensor D
- Check for opens in ground
- Inspect wiring
Repair notes
Replace pedal assembly or repair wiring.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1