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Home >> Jeep >> 2007 >> Commander Overland, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Electronic Control Modules (Service Information) >> Electronic Control Modules >> Module-Transmission Control >> Operation >> Transmission Control Module - 3.7L Gas/3.0L Diesel Vehicles >> CAN C Bus Indirect Input Signals
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CAN C Bus Indirect Input Signals

A 2.5-volt bias (operating voltage) is present on the CAN C bus any time the ignition switch is in the RUN position. Both the TCM and the ABS apply this bias. On this vehicle, the CAN C bus is used for module data exchange only. The indirect inputs used on the NAG1 electronic control system are:

  1. Wheel Speed Sensors.
  2. Transfer Case Switch Status.
  3. Brake Switch.
  4. Engine RPM.
  5. Engine Temperature.
  6. Cruise Control Status.
  7. Gear Limit Request.
  8. Throttle Position - 0% at idle, 100% at WOT. If open, TCM assumes idle (0% throttle opening).
  9. Odometer Mileage
  10. Maximum Effective Torque.
  11. Engine in Limp-In Mode/Mileage Where DTC Was Set.
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