Six problems related to automatic transmission control module have been reported for the 2006 Jeep Wrangler. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Jeep Wrangler based on all problems reported for the 2006 Wrangler.
The vehicle while operating under normal driving conditions had a check engine light appear. A certified mechanic found the tcm was faulty. Findings: p0218 high temp operation activated. P0714 transmission temp sensor intermittent. P0613 internal tcm problem. Instrument cluster: 1 tcm/single board engine control message not received data list for tcm is reading 1023 degrees fahrenheit or 1. 10 volts having code p0613 tcm is faulty. ## #vpic# 1 - check digit (9th position) does not calculate properly #vpic#.
I've been battling bad shifting problems and spent thousands of dollars trying to resolve the issue. After replacing the transmission, lots of diagnostic fees, and now a pcm module. I've learned after 8 months, that Chrysler can't seem to solve the pcm problem and left the aftermarket to resolve it. I luckily found a company who can resolve it. Tribal knowledge is that Chrysler couldn't figure it out and some parts are no longer available. This is unacceptable!.
Hard shifting from 1st to 2nd. Stuck in 2nd while in interstate traffic. What a nightmare! it's all over the internet about the bad pcm problem but no help from the dealer due to the age of the vehicle even with only 19000 miles.
The transmission control module (tcm), part of the computer, fails and manifests as a failure to shift from 1st to 2nd, over revving, loud thuds/clunks when it does shift from 1st to 2nd. Computer (tcm) can be reset if battery (+) disconnected and grounded out. This problem is not rare, estimate several 1,000 Jeep Wranglers '05 and '06 with automatic transmissions are experiencing this now or will. Chrysler has no interest in repairs or providing parts. From Jeep forums, best guess is a resistor or capacitor on the computer motherboard fails or critical electrical connections were poorly/incorrected soldered leading to insufficient and inconsistent connectivity.
The pcm used with automatic transmissions has a serious and very common failure. Chrysler has known since 2006 and has made no effort to date to rectify the issue. The tcm side (internal with the pcm) has a problem that causes harsh shifting issues. The only known successful repair is to replace the pcm. This has caused them to be unavailable and when they are, they are 3 to 5 times more expensive than other years. Also, these remanufactured pcm's are not reliably repaired, it is usual that several different pcm's be installed before a reliable one is found. I know of a 2006 Jeep tjl that had six mopar remanufactured computers installed in 90 days, all by the same dealership, before one that actually worked was found. There are hundreds of posts on every online forums that Jeepers use that discuss the problem in great detail. A quick google search will net you all you ever wanted to know about the 2006 Wrangler automatic transmission pcm failures.
The contact owns a 2006 Jeep Wrangler. While accelerating from a complete stop, the transmission shifted violently into second gear. The engine began to rev rapidly. The failure occurred only after the vehicle was initially started or whenever the engine was turned off and restarted. The vehicle was taken to a dealer where the pcm was reprogrammed. Three weeks later, the failure recurred. The vehicle was taken to an independent mechanic where the pcm was replaced; however, the failure recurred nine months later. The vehicle was not repaired for the most recent failure. The manufacturer was not notified of the failure. The approximate failure mileage was 73,000.