P0122
Throttle/Pedal Position Sensor/Switch A Circuit Low Input
2008-2008 Volvo S80 2.9L I6
High SeverityPowertrainGeneric (SAE)
The 2008 Volvo S80 is equipped with a 2.9L inline-6 engine. Below you'll find detailed p0122 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
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
Common Questions
What does code P0122 mean on a 2008-2008 Volvo S80?
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 Volvo S80?
Common symptoms of P0122 include: Check Engine Light, Limp mode, Engine stuck at idle, No throttle response.
What causes P0122 on a 2008-2008 Volvo S80?
Common causes of P0122 include: Short to ground in TPS circuit, Faulty TPS, Damaged wiring, Failed reference voltage.
Last updated: March 2026