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- Mon May 06, 2019 8:45 pm
- Forum: Configuration and Programming
- Topic: P1635 in TCM or PCM after tire size change
- Replies: 10
- Views: 8841
I had previously set my tire size to a 35" size (BCM 726-12-01 set to xxxx-0AAB, if memory serves) and my axle to 3.31, which correctly set the speedometer for my 3.55 with 37x13.5 tires. I got the 160 error which, I have read, is fixable with the PCM relearn. I read on Ford-trucks.com that someone ...