Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- CHECK FOR AN ACTIVE DTC NOTE:
Diagnose all CAN C communication failures before continuing.
- Turn the ignition on.
- With the scan tool, read DTCs and record on vehicle work order.
Is the DTC active?
Yes
- Go To 2
No
- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors, pay particular attention the CAN circuits.
- Perform the EPS Verification Test. Refer to EPS VERIFICATION TEST .
- VERIFY ABS MODULE IS ACTIVE ON CAN C BUS
- Using a scan tool, select ECU View.
- Verify that the ABS Module is active on the bus.
Is the ABS Module active on the bus?
Yes
- Go To 3
No
- Refer to DIAGNOSIS AND TESTING and perform the appropriate diagnostic procedure.
- CHECK FOR ACTIVE OR STORED DTCs IN ABS MODULE
- Using a scan tool, read ABS Module DTCs.
Are any DTCs active or stored in the ABS Module?
Yes
- Refer to DIAGNOSTIC CODE INDEX and perform the appropriate diagnostic procedure.
No
- Go To 4
- Using a scan tool, read ABS Module DTCs.
- CHECK FOR ACTIVE OR STORED COMMUNICATION DTCs IN BCM
- Using a scan tool, read BCM DTCs.
Are any active of stored ABS Module Communication DTCs set in the BCM?
Yes
- Refer to BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX - 500 - ELECTRIC and perform the appropriate diagnostic procedure.
No
- Replace the Electronic Power Steering (EPS) Assembly in accordance with service information. Refer to COLUMN, REMOVAL .
- Perform the EPS Verification Test. Refer to EPS VERIFICATION TEST .
- Using a scan tool, read BCM DTCs.