Diagnostic Test

WARNING: This page is about a different car, the 2012 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase the DTCs
3. Operate the Front Left Window up and down several times.
4. Wait 30 seconds.
5. With the scan tool, read the DTCs.
  Does the scan tool display B18B5-MASTER SWITCH-FRONT LEFT WINDOW SWITCH STUCK?
  
  Yes
  - Go To 2.
  No
  - The conditions that caused this code to set are not present at this time. Operate the switch several more times. If the switch ever sticks, replace it.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
MASTER POWER WINDOW/DOOR LOCK SWITCH
NOTE:
Anytime this code is active, the switch must be replaced.

Repair
- Replace the Express Window/Door Lock Switch in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .