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sgjii

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Discussion starter · #1 ·
I have a TPMS issue with my Aspen (2nd Gen Durango with Chrysler badges). The backstory is it had dead and mis-matched sensors and the dash light on and no pressure readings from 2 sensors when I bought it. Bought a set of 4 new after market sensors and installed. I cleaned up the valve stem holes and wheel lips to solve my slow leaks as well. Within a few minutes of driving SHAZZAM! they all read and all was wonderful for around 1000 miles. I thought I had matching tires but found i did not. The Aspen had 2 new Pirelli Scorpion AS tires on the front and a slightly older series of Pirelli Scorpion Verde on the rear, about 2years by date codes. I bought 2 new matching AS series for a matched set of 4 tires. This is where things went off the rails. I watched the process through the window into the shop. They pulled the front wheels off and re-balanced. The wheels were returned to their original locations L/R Front. The rears were broken down and new tires installed. I lost track of these two and am not sure if they were put back to their original L/R locations in the rear. I figured no harm, a few miles and things will sort themselves out. Instead, now I have pressure readings that are criss-cross and don't follow the wheels. When I went to the tire shop all my sensors read 32PSI. Now I read 32LF 34RF and 34LR and 32RR. I think my originals are the 32PSI and the new tires are the 34PSI.

No CEL or TPMS light but when I look with my scantool (Launch X431) it has a fault code that TPMS cannot read tire position C151D in the WCM Module. This follows what I see with 32/34PSI. I do not know the sensor IDs and do not have the equipment to read them. It appears I could force a sensor ID to program into a certain wheel location but I have no values to enter. Does anybody know how to get the system to RESET or suggestions to solve my mis-read location issues? Will this happen with every tire rotation service in the future? Anybody else found the system to be finicky?

I was also wondering how the system picks up the sensors? Are there receivers near the wheel locations or how would the system auto-read new sensors... Any additional insight would be appreciated.
 
Discussion starter · #4 ·
I did find a solution. I went back to Discount Tire this morning. They read the sensor IDs with a Bartec tech 450 Pro tool and I wrote down the IDs for my own record. Then they plugged into the OBD port and wrote the sensor IDs to the correct locations, FIXED. It is always easy with the right tools. I still do not know how the vehicle picks up the sensors and determines which wheel position they are in... Just me but i like to know how things work.
 
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