Step | Action | Values | Yes | No |
---|---|---|---|---|
Schematic Reference: Brake Warning System Schematics | ||||
1 | Did you review the Brake Warning System Description and Operation, and the Brake Assist System Description and Operation, and perform the necessary inspections? | -- | Go to Step 2 | |
2 | Perform the Brake Assist System Diagnosis . Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 3 |
3 |
Does the voltage measure greater than the specified value? | 11 V | Go to Step 5 | Go to Step 4 |
4 |
Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 6 |
5 | With the SBA harness connector still disconnected, start the engine. Is the reduced brake power message displayed? | -- | Go to Step 6 | Go to Step 7 |
6 | Replace the IPC. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 8 | -- |
7 | Replace the SBA pump motor assembly. Refer to Power Brake Booster Auxiliary Pump Replacement . Did you complete the replacement? | -- | Go to Step 8 | -- |
8 | Start the engine. Is the reduced brake power message displayed? | -- | Go to Step 2 | System OK |