Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information BCM-C00344A

Condition
The brake control module (BCM) receives information about wheel speed from the wheel sensors. The wheel sensors, which are on the wheel mounting, read off a pulse wheel on the wheel spindle. The wheel sensors are supplied with 12 V. When the magnetic wheel rotates, the sensor produces a pulsed current of 7 or 14 mA (quadratic wave). The amperage depends on the position of the damaged wheel.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Incorrect type of wheel sensor installed.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Vehicle speed exceeds 10 km/h.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.





Substitute value
- ABS blocked.
- Traction control (TC) blocked.
- Stability control (SC) blocked.
- Active yaw control (AYC) is blocked.
- Electronic brake force distribution (EBD) blocked.
- Brake assistance (BA) blocked.
- RSC is blocked (cars equipped with RSC only).

Hint: Brake system, abbreviations Brake System, Abbreviations

Possible source
- Incorrect type of sensor installed.

Note! This diagnostic trouble code (DTC) is not due to an internal hardware fault in the Brake control module (BCM) and must not be remedied by replacing the control module.

Fault symptom[s]
- Warning lights and chimes/Anti-lock Brake System (ABS) indication/no indication
- Warning lights and chimes/Antispin/antiskid (DSA, TRACS, STC, DSTC) indication/no indication
- Anti-spin function/Does not work
- Warning lights and chimes/Brake failure indication/no indication
- Stability function/Does not work
- Cruise control/Does not engage
- Brake pedal/Excessive "brake pedal effort" required
- Parking brake/Does not work
- Front monitoring/Active safety/City Safety does not work