Diagnostic Test

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE ABS OR EPS DTCS
NOTE:
If this fault was present along with ABS or EPS DTC C0054-54, a battery disconnect may have caused this fault to set.

NOTE:
Diagnose all CAN B and C communication DTCs before continuing.
1. Ignition on, engine not running.
2. With a scan tool, view DTCs.
  Was the DTC C0054-54 present along with this fault?
  
  Yes
  - Go To 2
  No
  - Go To 3
INITIALIZE EPS MODULE
1. With the scan tool, under "Miscellaneous Functions" run the EPS Learn routine.
2. Cycle the ignition off to on.
3. With the scan tool, erase the DTCs.
4. Cycle the ignition off to on.
5. Wait ten seconds.
6. With the scan tool, read the DTCs.
  Did the DTC return as active or pending?
  
  Yes
  - Go To 3
  No
  - Test complete.
SAS COMMUNICATION RELATED DTCs IN OTHER MODULES
1. With the scan tool, select Network Diagnostics.
  Is there more than one module with active DTCs "Logged Against" the SAS at this time?
  
  Yes
  - Replace the Electric Power Steering Module in accordance with the Service Information.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST, 2.4L .
  No
  - Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL, 2.4L/3.2L .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST, 2.4L .