BMW DTC P1233 – Fuel Tank Pressure/Temperature Sensor Circuit High
DTC P1233 meaning on BMW
DTC P1233 on a BMW indicates an issue with the Fuel Tank Pressure/Temperature Sensor Circuit registering a high voltage. This sensor is responsible for monitoring the pressure and temperature inside the fuel tank.
BMW DTC P1233 symptoms
Symptoms of DTC P1233 on a BMW may include:
- Check Engine Light illuminated
- Decreased fuel efficiency
- Engine running rough
- Difficulty starting the vehicle
BMW DTC P1233 causes
Common causes of DTC P1233 on a BMW include:
- Faulty Fuel Tank Pressure/Temperature Sensor
- Wiring issues in the sensor circuit
- Corrosion or poor connections in the sensor circuit
BMW DTC P1233 seriousness
While DTC P1233 may not cause immediate drivability issues, it can lead to decreased fuel efficiency and potential long-term engine problems if left unresolved. It is recommended to address this issue promptly.
How to diagnose DTC P1233 on BMW
To diagnose DTC P1233 on a BMW, a mechanic would typically:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the Fuel Tank Pressure/Temperature Sensor and its wiring for any visible damage
- Test the sensor’s resistance and voltage readings
- Check for any leaks or blockages in the fuel tank system
How to fix DTC P1233 on BMW
To fix DTC P1233 on a BMW, the following steps may be taken:
- Replace the faulty Fuel Tank Pressure/Temperature Sensor
- Repair or replace any damaged wiring in the sensor circuit
- Clean or repair any corroded connections
- Clear the fault code and reset the Check Engine Light
How to erase DTC P1233 on BMW
To erase DTC P1233 on a BMW, the fault code can be cleared using a diagnostic scanner. Once the underlying issue has been addressed and fixed, the code can be cleared, and the Check Engine Light reset to ensure the problem has been resolved.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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