C1937
Malfunction In Front Active Stabilizer Control ECU Main Relay Power Supply IC
C1937 is an OBD-II diagnostic trouble code meaning: Malfunction In Front Active Stabilizer Control ECU Main Relay Power Supply IC. Common causes: power relay faulty, problems in the wiring harness (open or shorted).
Symptoms
- Check Engine Light Is On
- Reduced effectiveness of the active stabilizer
- Unstable behavior of the stabilization system
Causes
- Power relay faulty
- Problems in the wiring harness (open or shorted)
- Circuit voltage low
- Malfunction of the active stabilizer control unit
How to Fix
- Check the voltage in the main relay circuit
- Inspect the wiring harness for damage
- Check the power relay and replace if necessary
- Test the operation of the control unit
- Clear ECU memory error
FAQ
What does the C1937 code mean?
C1937 is an OBD-II diagnostic trouble code that indicates: Malfunction In Front Active Stabilizer Control ECU Main Relay Power Supply IC
What causes a C1937 error code?
The most common causes of C1937 include: Power relay faulty; Problems in the wiring harness (open or shorted); Circuit voltage low; Malfunction of the active stabilizer control unit.
How do I fix a C1937 diagnostic trouble code?
To fix C1937: Check the voltage in the main relay circuit. Inspect the wiring harness for damage. Check the power relay and replace if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1937?
Limited driving only, diagnose soon
See also: Russian version · NationStat