C1232–DRIVE TEST: PRESSURE SENSOR

For a complete wiring diagram Refer to Section 8W.

When Monitored:
During the Drive Test.
Set Condition:
If the Pressure Sensor fails to activate.

Possible Causes

HYDRAULIC / BRAKE SYSTEM COMPONENT INSTALLATION

INTEGRATED CONTROL UNIT

PRESSURE SENSOR (HYDRAULIC CONTROL UNIT)

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. Refer to ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
Start the engine.
With the scan tool, read and record DTCs.

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

Yes

Go To 2

No

Refer to the INTERMITTENT CONDITION diagnostic procedure.
Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to 5 - BRAKES - DIAGNOSIS AND TESTING)

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

Repair as necessary.

Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

No

Clean contacts in HCU first if problem reoccurs replace the Integrated Control Unit in accordance with the Service Information.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).