Diagnostic Test
- CHECK FOR AN ACTIVE DTC
- Turn the ignition on.
- With the scan tool, read DTCs and record on vehicle work order.
- With the scan tool, erase DTCs.
- Cycle the ignition from off to on.
- With the scan tool, read EPS DTCs.
Is the DTC active?
Yes
- Go To 2
No
- Test complete. The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- CHECK FOR ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DTCS
- With the scan tool, read ABS DTCs.
Is there any ABS DTCs present?
Yes
- Perform the appropriate diagnostic procedure. Refer to: ANTILOCK BRAKE SYSTEM (ABS) - DIAGNOSTIC CODE INDEX .
No
- Go To 3
- With the scan tool, read ABS DTCs.
- CHECK OTHER MODULES FOR CAN C BUS DTCS
- With the scan tool, read the DTCs.
Are there any CAN C BUS DTCs present?
Yes
- Using the schematics as a guide, check the Anti-lock Brake System (ABS) Module pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Anti-lock Brake System (ABS) Module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM (ABS), REMOVAL and MODULE, ANTI-LOCK BRAKE SYSTEM (ABS), INSTALLATION .
No
- Using the schematics as a guide, check the Electric Power Steering (EPS) Module pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Electric Power Steering (EPS) Module in accordance with the Service Information. Refer to GEAR, REMOVAL and GEAR, INSTALLATION .
- Perform the EPS Verification Test. Refer to: EPS VERIFICATION TEST .
- With the scan tool, read the DTCs.