DTC C1391/69: Accumulator Leak Malfunction [03/2017 - 09/2018]: Description
This DTC is stored if internal or external brake fluid leaks are detected due to improper sealing in the brake actuator assembly. Internal leaks are suspected if the pump motor operates frequently without braking.
| DTC No. |
Detection Item |
INF Code |
DTC Detection Condition |
Trouble Area |
Note |
| C1391/69 |
Accumulator Leak Malfunction |
591 |
Either of the following is detected:
- Accumulator pressure sensor input does not increase before braking and while the pump motor is operating.
- Accumulator pressure sensor input reduction rate exceeds the specification before braking and while the pump motor is not operating.
|
- Brake fluid leaks
- Brake booster with accumulator pump assembly
- Brake actuator assembly
|
Electronically controlled brake system DTC |
| DTC No. |
Brake warning light / yellow (minor malfunction) code |
ABS warning light code |
Slip indicator light code |
Brake hold standby indicator light code |
| C1391 |
69 |
42 |
45 |
21 |