BMW DTC P1B37 – Hybrid/EV Battery Coolant Valve to Chiller Circuit High
DTC P1B37 meaning on BMW
The DTC P1B37 fault code on BMW vehicles indicates an issue with the Hybrid/EV Battery Coolant Valve to Chiller Circuit being detected as high. This fault code is specific to the hybrid or electric vehicles in the BMW lineup.
BMW DTC P1B37 symptoms
Symptoms of the DTC P1B37 fault code on a BMW may include the check engine light being illuminated on the dashboard, reduced hybrid or electric drive performance, and potential issues with the vehicle’s cooling system.
BMW DTC P1B37 causes
The DTC P1B37 fault code on a BMW can be triggered by various factors, including a malfunctioning Hybrid/EV Battery Coolant Valve, wiring issues in the circuit, or problems with the chiller system itself.
BMW DTC P1B37 seriousness
The seriousness of the DTC P1B37 fault code on a BMW depends on the underlying cause. Ignoring this fault code can lead to reduced efficiency of the hybrid or electric system and potential long-term damage to the vehicle’s components.
How to diagnose DTC P1B37 on BMW
To diagnose the DTC P1B37 fault code on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the specific code and then perform a thorough inspection of the Hybrid/EV Battery Coolant Valve, circuit wiring, and chiller system to identify the root cause of the issue.
How to fix DTC P1B37 on BMW
Fixing the DTC P1B37 fault code on a BMW may involve repairing or replacing the faulty Hybrid/EV Battery Coolant Valve, addressing any wiring issues, or troubleshooting problems with the chiller system. It is recommended to consult with a qualified mechanic or dealership for proper diagnosis and repair.
How to erase DTC P1B37 on BMW
Once the underlying issue causing the DTC P1B37 fault code on a BMW has been resolved, the code can be erased using a diagnostic scanner. This will clear the code from the vehicle’s memory and turn off the check engine light.
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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