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2012 Jeep Wrangler Unlimited Sport 3.6L 1st Gear
Posted to Chrysler Transmission on 8/21/2025 3 Replies

Hello All, THis Jeep has a fault in the TCM P0731 Gear Ratio Error in 1st. I have checked all the wiring. The jeep has 35 12.50 18 wheels and tires. I dont know if that affects the Pinion Factor. If it does what should the pinion factor be? I am far from a...

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  Related Documents & Media  2012 Jeep Wrangler Unlimited Sport

 
Message Closed w/Summary

car Vehicle Data

2012 Jeep Wrangler Unlimited Sport

VIN 1C4BJWDG9C
Engine3.6 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
Affected1st Gear
ConditionsIncorrect Ratio
Message Closed w/Summary

car Vehicle Data

2012 Jeep Wrangler Unlimited Sport

VIN 1C4BJWDG9C
Engine3.6 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
Affected1st Gear
ConditionsIncorrect Ratio