Check the park brake for proper adjustment. Refer to Park Brake Cable Service/Adjustment .

Is the adjustment within specifications?

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Go to Step 2

Go to Step 4

1. Push in the park brake switch.
2. Observe the actuator piston rod stroke.

Did the actuator piston rod have a full stroke?

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Go to Park Brake Pressure Sensor Circuit Check

Go to Step 3

Replace the park brake pump assembly. Refer to Park Brake Pump Replacement .

Is the repair complete?

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System OK

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Refer to Park Brake Cable Service/Adjustment for adjustment procedures.

Is the repair complete?

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System OK

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