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P1635 - Tire/Axle Ratio Out Of Acceptable Range - DTC Chart

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P1635 - TIRE/AXLE RATIO OUT OF ACCEPTABLE RANGE - DTC CHART

Description:  This DTC sets when the tire and axle information contained in the vehicle identification (VID) block does not match the vehicle hardware.
Possible Causes: 
  • Incorrect tire size
  • Incorrect axle ratio
  • Incorrect VID configuration parameters
Diagnostic Aids:  Using the scan tool, view the tire and axle parameters within the VID. They must match the vehicle hardware.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.
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