P0123
Throttle/Pedal Position Sensor/Switch A Circuit High Input
2007-2007 Cadillac CTS 3.2L V6
Critical SeverityPowertrainGeneric (SAE)
The 2007 Cadillac CTS is equipped with a 3.2L V6 engine. Below you'll find detailed p0123 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The TPS voltage is above the maximum threshold.
Symptoms
- Check Engine Light
- Limp mode
- High idle
- Sudden acceleration concern
Common Causes
- Open circuit in TPS ground
- Short to voltage
- Faulty TPS
Diagnostic Steps
- Test TPS voltage
- Check for open ground
- Check for shorts to power
Repair Notes
Repair wiring or replace TPS. Safety concern - do not drive.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0123 on Other Vehicles
Common Questions
What does code P0123 mean on a 2007-2007 Cadillac CTS?
P0123 stands for "Throttle/Pedal Position Sensor/Switch A Circuit High Input". The TPS voltage is above the maximum threshold.
What are the symptoms of P0123 on a Cadillac CTS?
Common symptoms of P0123 include: Check Engine Light, Limp mode, High idle, Sudden acceleration concern.
What causes P0123 on a 2007-2007 Cadillac CTS?
Common causes of P0123 include: Open circuit in TPS ground, Short to voltage, Faulty TPS.
Last updated: March 2026