DTC C1377: Capacitor [09/2018 - ]: Description
The brake control power supply with bracket assembly is used as auxiliary power for brake control when the battery voltage is low.
| DTC No. |
Detection Item |
INF Code |
DTC Detection Condition |
Trouble Area |
Note |
| C1377 |
Capacitor |
101
102
103
105
106
108
109
110 |
- INF Code: 101
- Either of the following is detected:
- IG1 terminal voltage is 9.5 V or more, and malfunction signal (not brake control power supply with bracket assembly communication malfunction) reception condition continues for 3 seconds or more.
- Brake control power supply with bracket assembly is deteriorated (replacement necessary).
- INF Code: 102
- Either of the following is detected:
- IG1 terminal voltage is 9.5 V or more, and malfunction signal (not brake control power supply with bracket assembly communication malfunction) reception condition continues for 3 seconds or more.
- Self discharge (current leak) is excessive (internal malfunction).
- INF Code: 103
- Either of the following is detected:
- IG1 terminal voltage is 9.5 V or more, and malfunction signal (not brake control power supply with bracket assembly communication malfunction) reception condition continues for 3 seconds or more.
- Overvoltage (16.4 V or more) continues to be applied from the battery to the brake control power supply with bracket assembly voltage input (+BC) for 10 seconds or more.
- INF Code: 105
- Either of the following is detected:
- IG1 terminal voltage is 9.5 V or more, and malfunction signal (not brake control power supply with bracket assembly communication malfunction) reception condition continues for 3 seconds or more.
- Circuit inside the power back up unit (charge) is malfunctioning.
- INF Code: 106
- Either of the following is detected:
- IG1 terminal voltage is 9.5 V or more, and malfunction signal (not brake control power supply with bracket assembly communication malfunction) reception condition continues for 3 seconds or more.
- Circuit inside the power back up unit (back up output circuit) is malfunctioning.
- INF Code: 108
- Either of the following is detected:
- IG1 terminal voltage is 9.5 V or more, and malfunction signal (not brake control power supply with bracket assembly communication malfunction) reception condition continues for 3 seconds or more.
- Circuit inside the power back up unit (voltage monitor circuit) is malfunctioning.
- INF Code: 109
- Either of the following is detected:
- IG1 terminal voltage is 9.5 V or more, and malfunction signal (not brake control power supply with bracket assembly communication malfunction) reception condition continues for 3 seconds or more.
- Open circuit between auxiliary battery (12 V) and brake control power supply with bracket assembly power input (+BC terminal).
- INF Code: 110
- Either of the following is detected:
- IG1 terminal voltage is 9.5 V or more, and malfunction signal (not brake control power supply with bracket assembly communication malfunction) reception condition continues for 3 seconds or more.
- Open or short circuit between auxiliary battery (12 V) and brake control power supply with bracket assembly output 1 (OUT1).
- Open or short circuit between auxiliary battery (12 V) and brake control power supply with bracket assembly output 2 (OUT2).
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- INF Code: 101, 102, 105, 106, 108
- Brake control power supply with bracket assembly
- INF Code: 103
- INF Code: 109
- CAPACITOR fuse
- Wire harness and connector
- Improperly connected connector, deformation or corrosion of terminals
- INF Code: 110
- Wire harness and connector
- Improperly connected connector, deformation or corrosion of terminals
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