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Diagnostic Procedure

DIAGNOSTIC PROCEDURE - *COMPASS/TEMP MODULE DOES NOT CALIBRATE

TEST ACTION APPLICABILITY
1 Perform the Compass/Temp Module Self-Check.
Turn the ignition off.
Depress and hold the STEP button.
Turn the ignition on and then release the STEP button.
NOTE: The Compass/Temp Module will illuminate all of the VF segments and then display an "F" or "P".

Exit the self-check by depressing the STEP button or cycling the ignition.
Did the Compass/Temp Module display an "F" during the self-check?
Yes --> Replace the Compass/Temp Module in accordance with the Service Information. NOTE: After replacing the CTM, it must be calibrated to operate properly. Refer to OVERHEAD CONSOLE .
Perform BODY VERIFICATION TEST - VER 1 .
No --> Go To 2		 All
2
NOTE: Ensure that the vehicle has been properly demagnetized before attempting to calibrate the compass. Refer to OVERHEAD CONSOLE .
NOTE: The compass must be calibrated after any replacement or display "lock-up".
Calibrate the compass using the following steps:Drive the vehicle to an area away from any large metal objects or overhead power lines.Ensure that the proper magnetic variance zone is stored in the compass memory.Turn the ignition on and ensure that the compass display is not blank.Depress and hold the STEP button for 5-10 seconds until "ZONE" appears in the display, then release the STEP button.The number displayed is the variance zone stored in the compass memory.If necessary, refer to the Variance Map in OVERHEAD CONSOLE .To change the variance zone, depress the STEP button to scroll through the zone numbers 1-15 until the desired zone is displayed.After selecting the proper zone, wait approximately 5 seconds for the compass display to return to normal.With the engine running, depress and hold the STEP button for 5-10 seconds, "ZONE" will appear, then "GAL", after 10-15 seconds.Release the STEP button within 2 seconds of "CAL" illuminating.With "CAL" displayed, drive slowly, less than 5 MPH (8 kPH) in 3 complete 360 degree circles."CAL" will turn off and the compass will be calibrated.Did the compass calibrate?Yes --> Test Complete.No --> Ensure that all calibration instructions have been followed carefully. Attempt to re-calibrate the compass, if unsuccessful, replace the Compass/Temp Module in accordance with the Service Instructions.Perform BODY VERIFICATION TEST - VER 1 .		 All
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