BMW DTC P1738 – Pressure Control Solenoid ‘C’ Electrical
DTC P1738 meaning on BMW
The DTC P1738 code on a BMW indicates an issue with the Pressure Control Solenoid ‘C’ electrical circuit. This means that there is a malfunction in the electrical system controlling the pressure solenoid, which can affect the transmission’s ability to shift properly.
BMW DTC P1738 symptoms
Some common symptoms associated with the BMW DTC P1738 code may include:
- Harsh or delayed shifting
- Transmission slipping
- Transmission overheating
- Check Engine Light illuminated
BMW DTC P1738 causes
The potential causes of the BMW DTC P1738 code can include:
- Faulty pressure control solenoid ‘C’
- Wiring or connector issues in the solenoid circuit
- Low transmission fluid level or dirty fluid
- Internal transmission problems
BMW DTC P1738 seriousness
Ignoring the DTC P1738 code on a BMW can lead to further transmission damage and potentially unsafe driving conditions. It is important to address this issue promptly to prevent more severe problems and costly repairs.
How to diagnose DTC P1738 on BMW
Diagnosing the DTC P1738 code on a BMW typically involves:
- Using a diagnostic scanner to retrieve the fault codes
- Inspecting the pressure control solenoid ‘C’ and its wiring for any visible damage
- Checking the transmission fluid level and condition
- Performing a road test to observe the transmission’s behavior
How to fix DTC P1738 on BMW
To fix the DTC P1738 code on a BMW, you may need to:
- Replace the pressure control solenoid ‘C’ if it is faulty
- Repair any damaged wiring or connectors in the solenoid circuit
- Ensure the transmission fluid is at the correct level and in good condition
- Address any internal transmission issues if necessary
How to erase DTC P1738 on BMW
After fixing the underlying issue causing the DTC P1738 code on a BMW, you can erase the code using a diagnostic scanner. Simply clear the fault codes from the vehicle’s memory to reset the Check Engine Light and ensure the repair was successful.
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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