rear wiper

There is a TSB from Chrysler for this problem. The fix is to update the TIPM control module with a new software version. You need to take it to the dealer or to a Chrysler specialty shop, who has OE diagnostic capability. Here is the bulletin for further reference: Wipers/Washers - Rear Wiper Inop./DTC's B231B & B2215 NUMBER: 08-027-06 GROUP: Electrical DATE: June 5, 2006 THE StarSCAN(R) FLASH FILES FOR THIS BULLETIN MUST BE RETRIEVED FROM THE INTERNET. StarSCAN(R) UPDATE CD 6.05 WAS THE LAST CD TO CONTAIN FLASH FILES. SUBJECT: Flash - Rear Wiper Stops Operating with Diagnostic Trouble Codes B231B And B2215 OVERVIEW: This bulletin involves Flash Reprogramming the Totally Integrated Power Module (11PM) with updated software. MODELS: 2006 (PT) PT Cruiser 2007 (PM) Caliber NOTE :This bulletin applies to PM vehicles built before May 27, 2006 (MDH 0527XX) and all PT vehicles built before June 2, 2006 (MDH 0602XX) SYMPTOM/CONDITION: The rear wiper may stop operating. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTC's) are present:: A. B2215 - FCM Internal B. B231B - Rear Wiper Motor Control Circuit Low DIAGNOSIS: 1. Connect the StarSCAN(R) to the vehicle. 2. Turn the ignition on. 3. With the Scan Tool, clear all TIPM DTC's. 4. Turn the Rear Windshield Wipers on. 5. Does the rear wiper operate? 6. Yes >> Perform the Repair Procedure. 7. No >> This bulletin does not apply, additional diagnosis is required.