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P1171

Throttle Actuation Potentiometer Signal 2 Range

1998-2008 Volkswagen Pointer 1.8L I4 🇨🇦

High SeverityPowertrain

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

P0120Throttle/Pedal Position Sensor/Switch A Circuit P0121Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance P1543Throttle Actuation Potentiometer Signal Out of Range P1543Throttle Actuation Potentiometer Signal Out of Range P1543Throttle Actuation Potentiometer Signal Out of Range P1543Throttle Actuation Potentiometer Signal Out of Range P1543Throttle Actuation Potentiometer Signal Out of Range P1544Throttle Actuation Potentiometer Signal Too High P1544Throttle Actuation Potentiometer Signal Too High P1544Throttle Actuation Potentiometer Signal Too High P1544Throttle Actuation Potentiometer Signal Too High P1544Throttle Actuation Potentiometer Signal Too High P1545Throttle Position Control Malfunction P1545Throttle Position Control Error P1545Throttle Position Control Error P1545Throttle Position Control Malfunction P1545Throttle Position Control Malfunction P1545Throttle Position Control Malfunction P1545Throttle Position Control Malfunction

Other Powertrain Codes

P1171 on Other Vehicles

Common Questions

What does code P1171 mean on a 1998-2008 Volkswagen Pointer?

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 Volkswagen Pointer?

Common symptoms of P1171 include: Check Engine Light, Reduced power mode, Throttle response erratic, Engine may idle only.

What causes P1171 on a 1998-2008 Volkswagen Pointer?

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.

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