Mirrors - Compass Display Inoperative or Inaccurate
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Mirrors - Compass Display Inoperative or Inaccurate Diagnostic Test
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Inside Rearview Mirror Schematics Connector End View Reference: Stationary Windows 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 - Stationary Windows |
| 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 |
|
Go to Step 4 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 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 Variance Procedure . 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 Variance Procedure . 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
in Wiring Systems. Did you find and correct the condition? |
Go to Step 10 | Go to Step 9 |
| 9 |
IMPORTANT:
Perform Compass Calibration and Variance Procedure for the inside rearview mirror with compass. Replace the inside rearview mirror. Refer to Rearview Mirror Replacement .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 |