Throttle Actuation Potentiometer Signal 2 Range
1996-1996 Audi A6 2.8L V6
The 1996 Audi A6 is equipped with a 2.8L V6 engine. Below you'll find detailed p1171 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The ECU detected that the second throttle position potentiometer signal is outside its expected voltage range. VW/Audi throttle bodies use dual potentiometers for redundancy and safety.
Symptoms
- Check Engine Light
- Reduced power mode
- Throttle response erratic
- Engine may idle only
Common Causes
- Faulty throttle body unit
- Damaged wiring to throttle position sensor 2
- Corroded connector
- Throttle body contamination affecting sensor
- ECU fault
Diagnostic Steps
- Read throttle position sensor 1 and 2 values with scan tool
- Check for proper signal tracking between both sensors
- Inspect throttle body connector
- Test wiring continuity for sensor 2
- Clean throttle body and retest
Repair Notes
Replace the throttle body assembly if the internal potentiometer has failed.
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
P1171 on Other Vehicles
Common Questions
What does code P1171 mean on a 1996-1996 Audi A6?
P1171 stands for "Throttle Actuation Potentiometer Signal 2 Range". The ECU detected that the second throttle position potentiometer signal is outside its expected voltage range. VW/Audi throttle bodies use dual potentiometers for redundancy and safety.
What are the symptoms of P1171 on a Audi A6?
Common symptoms of P1171 include: Check Engine Light, Reduced power mode, Throttle response erratic, Engine may idle only.
What causes P1171 on a 1996-1996 Audi A6?
Common causes of P1171 include: Faulty throttle body unit, Damaged wiring to throttle position sensor 2, Corroded connector, Throttle body contamination affecting sensor, ECU fault.
Last updated: March 2026