P2128
Throttle/Pedal Position Sensor/Switch E Circuit High
2007-2007 Cadillac SRX 3.6L V6
Critical SeverityPowertrainGeneric (SAE)
The 2007 Cadillac SRX is equipped with a 3.6L V6 engine. Below you'll find detailed p2128 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
High voltage from accelerator pedal position sensor E.
Symptoms
- Limp mode
- Check engine light
- Possible unintended throttle input
Common Causes
- Open ground
- Short to voltage in harness
- Failed sensor
Diagnostic Steps
- Measure sensor E voltage
- Check ground circuit
- Inspect wiring
Repair Notes
Replace accelerator pedal assembly or repair wiring.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
P2128 on Other Vehicles
Common Questions
What does code P2128 mean on a 2007-2007 Cadillac SRX?
P2128 stands for "Throttle/Pedal Position Sensor/Switch E Circuit High". High voltage from accelerator pedal position sensor E.
What are the symptoms of P2128 on a Cadillac SRX?
Common symptoms of P2128 include: Limp mode, Check engine light, Possible unintended throttle input.
What causes P2128 on a 2007-2007 Cadillac SRX?
Common causes of P2128 include: Open ground, Short to voltage in harness, Failed sensor.
Last updated: March 2026