DTC C0036-07, C0037-07, C0037-29, C0037-2F, C0037-37 Or C0037-64: Abs Wheel-Speed Sensor (LR) [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 |
DTC C0036:07 |
ABS wheel-speed sensor (LR) |
| DTC C0037:07, C0037:29, C0037:2F, C0037:37 or C0037:64 |
ABS wheel-speed sensor (LR), ABS wheel-speed sensor rotor |
| Detection condition |
- C0036:07
- While driving at a vehicle speed of 14 km/h {8.7 mph} or more, the DSC HU/CM detects a periodic pulse deficiency in the signal wave pattern of the ABS wheel-speed sensor (LR).
- C0037:07
- The DSC HU/CM detects a sudden change in the wheel acceleration on the left rear wheel.
- C0037:29
- While driving at a vehicle speed of 20 km/h {12 mph} or more, the DSC HU/CM detects that the wheel speed signal of the left rear wheel is lower than the specification compared to the other wheel speed signals.
- C0037:2F
- While driving, the DSC HU/CM detects any of the following conditions.
- Amount of change in wheel speed of left rear wheel is larger than specification
- ABS control corresponding to left rear wheel continues for 28 s or more
- C0037:37
- While driving, the DSC HU/CM detects that the wheel speed signal of the left rear wheel is extremely high.
- C0037:64
- While driving at a vehicle speed of 20 km/h {12 mph} or more, the DSC HU/CM detects that the wheel speed signal of the left rear wheel is higher than the specification compared to the other wheel speed signals.
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| Fail-safe |
Refer to "DTC Table" and "Fail-safe Function Malfunction Contents Table". (See DTC TABLE [DSC HU/CM (US)] .) |
| Possible cause |
- Continuous ABS operation
- ABS wheel-speed sensor (LR) connector or terminals malfunction
- DSC HU/CM connector or terminals malfunction
- ABS sensor rotor malfunction (missing ABS sensor rotor teeth due to foreign material obstruction)
- ABS wheel-speed sensor (LR) or ABS sensor rotor installation malfunction (If the ABS sensor rotor is installed at an angle, it may cause output of abnormal wave pattern at high speeds.)
- Excessive clearance between the ABS wheel-speed sensor and sensor rotor
- ABS wheel-speed sensor (LR) malfunction
- DSC HU/CM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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