P0122
Throttle/Pedal Position Sensor/Switch A Circuit Low Input
2013-2019 Cadillac XTS 3.6L V6
High SeverityPowertrainGeneric (SAE)
Description
The TPS voltage is below the minimum threshold.
Symptoms
- Check Engine Light
- Limp mode
- Engine stuck at idle
- No throttle response
Common Causes
- Short to ground in TPS circuit
- Faulty TPS
- Damaged wiring
- Failed reference voltage
Diagnostic Steps
- Test TPS voltage
- Check for shorts to ground
- Test 5V reference
- Inspect wiring
Repair Notes
Repair short or replace TPS.
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
P0122 on Other Vehicles
Cadillac ATS
2013-2019 2.0L Turbo I4
Cadillac ATS
2013-2019 2.5L I4
Cadillac ATS-V
2016-2019 3.6L Twin-Turbo V6
Cadillac CT4
2020-2024 2.0L Turbo I4
Cadillac CT4
2020-2024 2.7L Turbo I4
Cadillac CT4-V
2020-2024 2.7L Turbo I4
Cadillac CT4-V Blackwing
2022-2024 3.6L Twin-Turbo V6
Cadillac CT5
2020-2024 2.0L Turbo I4
Common Questions
What does code P0122 mean on a 2013-2019 Cadillac XTS?
P0122 stands for "Throttle/Pedal Position Sensor/Switch A Circuit Low Input". The TPS voltage is below the minimum threshold.
What are the symptoms of P0122 on a Cadillac XTS?
Common symptoms of P0122 include: Check Engine Light, Limp mode, Engine stuck at idle, No throttle response.
What causes P0122 on a 2013-2019 Cadillac XTS?
Common causes of P0122 include: Short to ground in TPS circuit, Faulty TPS, Damaged wiring, Failed reference voltage.