Volkswagen DTC P1505 – Closed Throttle Position Does Not Close/Open Circuit
DTC P1505 meaning on Volkswagen
DTC P1505 on a Volkswagen indicates a fault with the Closed Throttle Position (CTP) sensor. This code is triggered when the Engine Control Module (ECM) detects that the CTP sensor is not closing properly or there is an open circuit in the sensor circuit.
Volkswagen DTC P1505 symptoms
Symptoms of DTC P1505 on a Volkswagen may include:
- Check Engine Light illuminated
- Engine stalling at idle
- Reduced engine performance
- Hard starting
Volkswagen DTC P1505 causes
The common causes of DTC P1505 on a Volkswagen are:
- Defective Closed Throttle Position (CTP) sensor
- Open or short circuit in the CTP sensor wiring
- Faulty Engine Control Module (ECM)
Volkswagen DTC P1505 seriousness
DTC P1505 should not be ignored as it can lead to drivability issues and potential engine stalling. It is recommended to address this fault promptly to prevent further damage to the vehicle.
How to diagnose DTC P1505 on Volkswagen
To diagnose DTC P1505 on a Volkswagen, follow these steps:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the CTP sensor and its wiring for any visible damage
- Test the CTP sensor using a multimeter to check for proper operation
- Check the ECM for any signs of malfunction
How to fix DTC P1505 on Volkswagen
To fix DTC P1505 on a Volkswagen, you can:
- Replace the faulty Closed Throttle Position (CTP) sensor
- Repair any open or short circuits in the CTP sensor wiring
- If the ECM is faulty, replace or reprogram it as necessary
How to erase DTC P1505 on Volkswagen
To erase DTC P1505 on a Volkswagen, you can:
- Use a diagnostic scanner to clear the fault code
- After fixing the underlying issue, perform a drive cycle to ensure the fault does not return
Recommended tools for Volkswagen diagnostics
Explore our expert picks: The Best OBD2 Scanners for 2025
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.