DTC C1377/43 Capacitor Malfunction: Description
The brake control power supply assembly (capacitor) is used as auxiliary power for brake control when battery voltage is low.
DTC DETECTING CONDITION CHART
| DTC No. | Information Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1377/43 | 101 | Brake control power supply assembly is deteriorated (indicates a need to replace). | Brake control power supply |
| ↑ | 102 | Self-discharge (current leak) is excessive (internal malfunction). | ↑ |
| ↑ | 103 | Overvoltage (16.4 V or more) continues to be applied from the battery to the brake control power supply voltage input (+BC) for 10 seconds or more. | Apply high voltage |
| ↑ | 105 | Circuit inside the power back up unit (charge) is malfunctioning. | Brake control power supply |
| ↑ | 106 | Circuit inside the power back up unit (back up output circuit) is malfunctioning. | ↑ |
| ↑ | 107 | Malfunction in the forced discharge circuit. | ↑ |
| ↑ | 108 | Circuit inside the power back up unit (voltage monitor circuit) is malfunctioning. | ↑ |
| ↑ | 109 | Open circuit between battery (12 V) and brake control power supply power input (+BC terminal). |
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| ↑ | 110 | When either of the following is detected:
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