Can’t get those wipers to work? This was the case with one Mitchell 1 SureTrack community member who had a 2012 Jeep Liberty Sport 3.7L in his shop that was experiencing issues with the wiper blades not working. Luckily, with the help of a fellow community member, he was able to make another customer happy. Let’s see how he figured it out.
The Diagnosis
After verifying the wipers didn’t work, he saw they would not move in any position of the switch. Using a scan tool, he found code B2304 (Park switch stuck high). He checked the fuses and ran another test, and it said to replace the wiper motor. So of course he replaced the wiper motor with a new motor FROM THE DEALER. It still didn’t work!
Next, the car was set a new code, B2305 (Park circuit low), also recommending a wiper motor replacement. Although he knew that the TIPM (totally integrated power module) runs the relays in the power module as to put power to the motor, he was unsure whether the TIPM turns them on if the codes are present. At a roadblock, the technician turned to the SureTrack community.
Thankfully, a fellow community member guided him by suggesting that the code calls for a short to ground in the Park circuit between the wiper motor and the TIPM. Also, if the wire is not shorted to ground, he suspects it’s the TIPM itself, since they are a common failure on Chrysler product.
The Fix
From this, the technician had found that the TIPM had failed. He had tested the amp draw on the motor, and it was 4 amps higher than the new one. Both were replaced. Now the technician has one more customer that doesn’t have to worry the next time it rains!
Real Fixes from Mitchell 1’s SureTrack® expert information resource are documented issues from actual shop repair orders and community discussions. Read the Real Fix in the Mitchell 1 ShopConnection Blog.
