Speedometer and/or Odometer Inaccurate or Inoperative

TEST DESCRIPTION

Steps 1-7:

Steps 8-17:

The number(s) below refer to the step number(s) 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 PC.