Pinpoint Tests AH: Brake Booster Vacuum Supply Faults: Notes
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On all other engines, the engine supplies the vacuum to the brake booster through a series of hoses and tubes. A leak in a vacuum hose, tube, brake booster or one of the seals on the brake booster or vacuum pump prevents the brake booster from achieving the required amount of vacuum.
PPT AH ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| C1015:7A | Vacuum Supply: Fluid Leak or Seal Failure | Sets when the ABS module detects a decrease in brake booster vacuum without brake system activation. |
| C1015:7B | Vacuum Supply: Low Fluid Level | Sets when the ABS module detects the brake vacuum pump or engine is unable to produce the vacuum necessary for brake system operation. |