Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




Diagnostic trouble code (DTC) BCM-0057 is stored if the brake control module (BCM) registers that the battery voltage is less than 9.5 V and the speed of the quickest rotating wheel is over 20 km/h.
The diagnostic trouble code (DTC) can be diagnosed when the speed is above 20 km/h and too low voltage has been detected for longer than approximately 0.5 ms.

Substitute value
- The ABS is blocked
- Electronic Brake force Distribution is blocked if the voltage is below 8 V
- Traction control is blocked
- Stability control is blocked
- Active yaw control is blocked
- Brake assistance is blocked.

Hint: For information about brake system abbreviations, see Brake system, abbreviations Brake System, Abbreviations.

Possible source
- Contact resistance in the terminals
- Battery voltage too low
- Fault in the charging system
- Open-circuit or short-circuit to ground in the cable for the power supply
- Defective fuse in the circuit
- Interference in the wiring
- Defective control module.

Fault symptom[s]
- General warning lamp lit
- The ABS warning lamp is lit
- The warning lamp for brake circuit not functioning is lit
- The anti-spin warning lamp is lit (up to and including 2002 model year)
- The ABS system does not function
- Anti-spin does not function
- The stability control system does not function
- The traction control system does not function.