BMW DTC P16E5 – PCM/ECM/TCM Internal Switch-On Temperature Sensor Circuit High
DTC P16E5 meaning on BMW
DTC P16E5 on a BMW refers to a fault with the PCM/ECM/TCM Internal Switch-On Temperature Sensor Circuit registering a high voltage. This diagnostic trouble code indicates an issue with the internal temperature sensor circuitry within the powertrain control module, engine control module, or transmission control module.
BMW DTC P16E5 symptoms
Symptoms of DTC P16E5 on a BMW may include:
- Check Engine Light (MIL) illuminated
- Engine running hotter than normal
- Reduced engine performance
- Possible transmission shifting issues
BMW DTC P16E5 causes
Common causes of DTC P16E5 on a BMW include:
- Faulty internal temperature sensor
- Wiring or connector issues in the sensor circuit
- PCM/ECM/TCM internal fault
BMW DTC P16E5 seriousness
The seriousness of DTC P16E5 on a BMW can vary depending on the underlying cause. Ignoring this fault can lead to potential engine overheating or transmission problems, which may result in further damage if not addressed promptly.
How to diagnose DTC P16E5 on BMW
To diagnose DTC P16E5 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the internal temperature sensor and its circuitry for any visible damage
- Check the wiring and connectors for proper connection and continuity
- Perform a thorough inspection of the PCM/ECM/TCM for any internal faults
How to fix DTC P16E5 on BMW
To fix DTC P16E5 on a BMW, the following steps may be taken:
- Replace the faulty internal temperature sensor if found defective
- Repair any damaged wiring or connectors in the sensor circuit
- If the issue lies with the PCM/ECM/TCM, it may need to be reprogrammed or replaced
How to erase DTC P16E5 on BMW
To erase DTC P16E5 on a BMW, the fault codes can be cleared using a diagnostic scanner. After the necessary repairs have been made, the codes can be reset to see if the issue has been resolved. It is important to ensure that the underlying problem causing the fault code has been addressed before clearing the code.
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
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.