DTC C137B-A3: Brake System Control Module "A" System Voltage System Voltage High [12/2019 - ]: Description
WARNING: This page is about a different variant/trim than selected.
If a malfunction is detected in the power supply circuit, the No. 2 skid control ECU (brake actuator assembly) stores this DTC and the fail-safe function prohibits operation of ABS, brake assist, regenerative brake cooperative control, etc.
This DTC is stored when the +BS terminal voltage deviates due to a malfunction in the power supply or charging circuit such as the auxiliary battery or DC/DC converter circuit, etc.
This DTC is cleared when the voltage at terminal +BS returns to normal.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Note |
|---|---|---|---|---|---|
| C137B-A3 | Brake System Control Module "A" System Voltage System Voltage High | The +BS terminal voltage is higher than 17.4 V for 0.8 seconds or more. |
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Comes on |
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