Speedometer and/or Odometer Inaccurate or Inoperative

TEST DESCRIPTION

Steps 1-6:

Steps 7-17:

The numbers below refer to the step numbers on the diagnostic table
4. This step tests for a malfunctioning cruise control module that is interrupting the vehicle speed signal circuit.
5. This step tests for a malfunctioning HUD that is interrupting the vehicle speed signal circuit.
6. This step tests for the proper voltage from the IPC.