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Home >> Cadillac >> 2007 >> CTS V >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> Mirrors - Compass Display Inoperative or Inaccurate

Mirrors - Compass Display Inoperative or Inaccurate

Mirrors - Compass Display Inoperative or Inaccurate

Step Action Yes No
Schematic Reference: Inside Rearview Mirror Schematics or Instrument Cluster Schematics 
Connector End View Reference: Displays and Gages Connector End Views 
1 Did you review the compass operation of the inside rearview mirror and perform the necessary inspections? Go to Step 2  Go to Symptoms - Mirrors
2 Does the automatic day-night feature of the inside rearview mirror operate correctly? Go to Step 3  Go to Mirrors - Automatic Day-Night Inoperative
3
  1. Turn ON the ignition, with the engine OFF.
  2. Turn ON the compass.
  3. Verify that the compass has one of the following conditions:
    • An incorrect reading on the display.
    • The letter "C" or "CAL" is displayed.
    • The compass display is blank.
Does the compass have one of the conditions mentioned above?
Go to Step 4  Go to Testing for Intermittent Conditions and Poor Connections
4 Is the compass display totally blank? Go to Step 8  Go to Step 5 
5 Is the letter "C" or "CAL" displayed on the mirror? Go to Step 6  Go to Step 7 
6 Perform the compass calibration procedure. Refer to Compass Calibration and Magnetic Variance .
Is the compass accurate and operating properly?
Go to Step 10  Go to Step 7 
7 Perform the compass magnetic variation adjustment procedure. Refer to Compass Calibration and Magnetic Variance .
Is the compass accurate and operating properly?
Go to Step 10  Go to Step 8 
8 Inspect for a poor connection at the harness connector of the inside rearview mirror. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs .
Did you find and correct the condition?
Go to Step 10  Go to Step 9 
9
IMPORTANT: Perform Compass Calibration and Magnetic Variance  for the inside rearview mirror with compass.
Replace the inside rearview mirror. Refer to Rearview Mirror Replacement (DD7, DD8) or Rearview Mirror Replacement (UE1) .Did you complete the replacement?
Go to Step 10  -
10 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 3