Diagnostic Test

1) CHECK FOR A DTC C1232-DRIVE TEST: PRESSURE SENSOR
NOTE: This DTC must be active for the results of this test to be valid.

Turn the ignition on.

With the scan tool, read and record DTCs.

With the scan tool, read and record Freeze Frame information.

Perform ECU initialization with drive test. Perform ABS VERIFICATION TEST .

Start the engine and apply the brake firmly.

With the scan tool, read and record DTCs.

Does the scan tool display: C1232-DRIVE TEST: PRESSURE SENSOR?

Yes
1. Go to 2).
No
1. Refer to the INTERMITTENT CONDITION diagnostic procedure.
2. Refer to ABS INTERMITTENT CONDITION .
2) CHECK HYDRAULIC SYSTEM & BRAKE SYSTEM COMPONENT INSTALLATION & FUNCTION
Verify that the Anti-Lock Brakes Module and Hydraulic Control Unit are properly installed.

Verify that the hydraulic system is properly filled and bled.

Verify that the brake system components are installed and functioning properly.

Were any problems found?

Yes
1. Repair as necessary.
2. Perform ABS VERIFICATION TEST .
No
1. Clean contacts in HCU first if problem reoccurs replace the Integrated Control Unit in accordance with the SERVICE INFORMATION.
2. Perform ABS VERIFICATION TEST .