DTC C0023-62: Brake Light [DSC HU/Cm]: Outline
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
| System malfunction location |
Brake light |
| Detection condition |
- The DSC HU/CM detects any of the following conditions.
- Brake light status signal input by signal wiring harness and brake light illumination request signal output by CAN communication do not match
- Master cylinder pressure exceeds 20 MPa {204 kgf/cm2
, 2901 psi} even though brake light status signal input by signal wiring harness is off
- Brake light status signal input by signal wiring harness and brake light status signal input by CAN communication do not match
|
| Fail-safe |
Refer to "DTC Table" and "Fail-safe Function Malfunction Contents Table". (See DTC TABLE [DSC HU/CM (US)] .) |
| Possible cause |
- DTCs are stored in the body control module (BCM).
- DTCs related to the electrical supply unit (ESU) are stored.
- Electrical supply unit (ESU) connector or terminals malfunction
- DSC HU/CM connector or terminals malfunction
- Short to ground in electrical supply unit (ESU) brake signal circuit
- Short to power supply in electrical supply unit (ESU) brake signal circuit
- Open circuit in electrical supply unit (ESU) brake signal circuit
- Electrical supply unit (ESU) malfunction
- DSC HU/CM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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