PINPOINT TEST C: DTCs C0044:28, C0044:49 AND C0044:64
- C1 CHECK THE BRAKE PEDAL AND BRACKET
- Inspect the brake pedal position switch and brake pedal assembly. Verify there is no brake pedal pressure unintentionally applied due to incorrect brake pedal position switch or brake pedal installation.
- Are the brake pedal position switch and brake pedal OK?
- Yes: GO to C2 .
- No: REPAIR or INSTALL new components as necessary. REFER to HYDRAULIC BRAKE ACTUATION .
- C2 CHECK FOR DTCs C0044:28, C0044:49 AND C0044:64 TO RETURN
- Ignition ON.
- Using a scan tool, clear all CMDTCs .
- Test drive the vehicle at speeds greater than 32 km/h (20 mph).
- Enter the following diagnostic mode on the scan tool: Self-Test - ABS Module.
- Are DTCs C0044:28, C0044:49 and C0044:64 present?
- Yes: GO to C3 .
- No: The system is operating correctly at this time. The concern may have been caused by air trapped in the hydraulic brake system. CLEAR the DTCs. REPEAT the self-test.
- C3 CHECK FOR CORRECT ABS MODULE TO HCU TORQUE VALUES
- Verify all ABS module-to- HCU fasteners are tightened to their correct torque specifications.
- Are the ABS module to HCU fasteners correctly torqued?
- Yes:
For vehicles without adaptive cruise control, INSTALL an ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE . GO to C4
.
For vehicles with adaptive cruise control, INSTALL a new HCU . REFER to HYDRAULIC CONTROL UNIT (HCU) . TEST the system for normal operation.
- No: TIGHTEN all ABS module-to- HCU fasteners. CLEAR the DTCs. GO to C4 .
- C4 CHECK FOR DTCs C0044:28, C0044:49 AND C0044:64
- Test drive the vehicle at speeds greater than 32 km/h (20 mph).
- Enter the following diagnostic mode on the scan tool: Self-Test - ABS Module.
- Carry out the ABS module self-test.
- Are DTCs C0044:28, C0044:49 and C0044:64 present?
- Yes: INSTALL a new HCU . REFER to HYDRAULIC CONTROL UNIT (HCU) . TEST the system for normal operation.
- No: Repairs complete. The system is operating correctly at this time.