C1232-DRIVE TEST: PRESSURE SENSOR

For a complete wiring diagram Refer to the Wiring Information.

Possible Causes
HYDRAULIC / BRAKE SYSTEM COMPONENT INSTALLATION
INTEGRATED CONTROL UNIT
PRESSURE SENSOR (HYDRAULIC CONTROL UNIT)

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.

1.	Turn the ignition on.

2.	With the scan tool, read and record DTCs.

3.	With the scan tool, read and record Environmental Data to help identify the conditions in which the DTC was set.

4.	Perform ECU initialization with drive test. Refer to ABS VERIFICATION TEST (Refer to 28 - DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Standard Procedure).

5.	Start the engine and apply the brake firmly.

6.	With the scan tool, read and record DTCs.

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

Yes

2. CHECK HYDRAULIC SYSTEM AND BRAKE SYSTEM COMPONENT INSTALLATION AND FUNCTION

1.	Verify that the Anti-Lock Brake Module and Hydraulic Control Unit are properly installed.

2.	Verify that the hydraulic system is properly filled and bled.

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

Were any problems found?

Yes

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 28 - DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Standard Procedure).