Diagnostic Test

WARNING: This page is about a different car, the 2019 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read DTCM DTCs and record on the repair order.
2. Record the Environmental Data.
3. With the scan tool, erase DTCs.
4. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
5. With the scan tool, read DTCM DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITIONS TEST. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE ANTI-LOCK BRAKE SYSTEM MODULE (ABS) FOR DTCs
1. With the scan tool, check for ABS DTCs.
  NOTE:
  Due to the nature of DTCs C2502-64 and C221B-64 setting criteria, these DTC's may set to Active erroneously in the DTCM during a diagnostic session on the Renegade and 500x vehicles. If you encounter both C2502-64 and C221B-64 set as active AND you have interrogated the ABS module in any way with a scan tool, make sure to perform the following actions before initiating repair procedures:
  
  1) Disconnect scan tool from vehicle
  
  2) Drive the vehicle 100ft
  
  3) Connect scan tool and go DIRECTLY to "All DTCs" section without performing any other action. If C2502 and C221B are now stored clear the faults and do not perform any repairs - the faults were set in error. If the two DTCs are still active, proceed with repair procedure.
  
  Were any ABS DTCs found?
  
  Yes
  - Diagnose the ABS DTCs in accordance with the diagnostic information. Refer to DIAGNOSTIC CODE INDEX .
  - Perform the DTCM VERIFICATION Procedure. Refer to DTCM VERIFICATION TEST .
  No
  - Perform the DTCM VERIFICATION Procedure. Refer to DTCM VERIFICATION TEST .
  - Test complete