Throttle Actuation Potentiometer Signal Too High
1998-2008 Volkswagen Pointer 1.8L I4 🇦🇺
Description
The ECU detected that the throttle actuation potentiometer signal voltage is higher than the maximum expected value. This may indicate an open ground circuit or sensor failure.
Symptoms
- Check Engine Light
- Limp mode with limited throttle
- Engine may idle only
- Erratic throttle response
Common Causes
- Open ground wire to throttle body
- Faulty throttle position potentiometer
- Connector pin backed out
- Throttle body internal fault
- ECU reference voltage issue
Diagnostic Steps
- Measure potentiometer signal voltage
- Check ground circuit continuity
- Inspect connector for backed-out pins
- Test reference voltage from ECU
- Compare both potentiometer readings
Repair Notes
Repair the open circuit or replace the throttle body assembly.
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
P1544 on Other Vehicles
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2018-2025 3.0L V6 TDI Diesel
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2019-2024 2.0L Turbo I4
Volkswagen Atlas
2018-2024 2.0L Turbo I4
Volkswagen Atlas
2018-2024 3.6L V6
Volkswagen Atlas Cross Sport
2020-2024 2.0L Turbo I4
Volkswagen Atlas Cross Sport
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Volkswagen Beetle
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Common Questions
What does code P1544 mean on a 1998-2008 Volkswagen Pointer?
P1544 stands for "Throttle Actuation Potentiometer Signal Too High". The ECU detected that the throttle actuation potentiometer signal voltage is higher than the maximum expected value. This may indicate an open ground circuit or sensor failure.
What are the symptoms of P1544 on a Volkswagen Pointer?
Common symptoms of P1544 include: Check Engine Light, Limp mode with limited throttle, Engine may idle only, Erratic throttle response.
What causes P1544 on a 1998-2008 Volkswagen Pointer?
Common causes of P1544 include: Open ground wire to throttle body, Faulty throttle position potentiometer, Connector pin backed out, Throttle body internal fault, ECU reference voltage issue.