Mirrors - Outside Automatic Day-Night Feature Inoperative
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Mirrors - Outside Automatic Day-Night Feature Inoperative
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Outside Rearview Mirror Schematics Connector End View Reference: Window Systems Connector End Views |
||||
| 1 | Did you review the operation of the automatic day-night feature of the driver outside rearview mirror and perform the necessary inspections? | - | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 |
|
- | Go to Step 3 | Go to Mirrors - Automatic Day-Night Inoperative |
| 3 | While shining a bright light into the sensor on the face of the inside rearview mirror, observe the driver outside rearview mirror. Does the driver outside rearview mirror darken? |
- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 4 |
| 4 |
|
0.75-1.5 V | Go to Step 7 | Go to Step 5 |
| 5 | Is the voltage greater than the specified value? | 1.5 V | Go to Step 18 | Go to Step 6 |
| 6 | Measure the voltage between the signal circuit of the driver outside rearview mirror element and a good ground. Is the voltage within the specified range? |
0.75-1.5 V | Go to Step 13 | Go to Step 12 |
| 7 |
|
0.75-1.5 V | Go to Step 14 | Go to Step 8 |
| 8 | Is the voltage greater than the specified value? | 1.5 V | Go to Step 18 | Go to Step 9 |
| 9 |
|
3 Ω | Go to Step 10 | Go to Step 15 |
| 10 | Measure the resistance between the signal circuit of the driver outside rearview mirror element to a good ground. Is the resistance within the specified range? |
OL | Go to Step 11 | Go to Step 15 |
| 11 | Measure the resistance of the low reference circuit of the driver outside rearview mirror element between the driver outside rearview mirror face and the DDS. Is the resistance less than the specified value? |
3 Ω | Go to Step 17 | Go to Step 15 |
| 12 | Test the signal circuit of the driver outside rearview mirror element for an open or short to ground. Refer to Circuit Testing
and Wiring Repairs
. Did you find or correct the condition? |
- | Go to Step 23 | Go to Step 16 |
| 13 | Test the low reference circuit of the driver outside rearview mirror element for an open or high resistance. Refer to Circuit Testing
and Wiring Repairs
. Did you find or correct the condition? |
- | Go to Step 23 | Go to Step 16 |
| 14 | Inspect for poor connections at the harness connector of the driver outside rearview mirror face. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find or correct the condition? |
- | Go to Step 23 | Go to Step 19 |
| 15 | Inspect for poor connections at the harness connector of the driver outside rearview mirror. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find or correct the condition? |
- | Go to Step 23 | Go to Step 20 |
| 16 | Inspect for poor connections at the harness connector of the inside rearview mirror. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find or correct the condition? |
- | Go to Step 23 | Go to Step 21 |
| 17 | Inspect for poor connections at the harness connector of the DDS. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find or correct the condition? |
- | Go to Step 23 | Go to Step 22 |
| 18 |
IMPORTANT:
A short to voltage in the signal circuit of the driver outside rearview mirror element will cause permanent damage to both the driver outside rearview mirror and the inside rearview mirror element. Repair the short to voltage in the signal circuit of the driver outside rearview mirror element. Refer to Wiring Repairs
.Did you complete the repair? |
- | Go to Step 23 | - |
| 19 | Replace the driver outside rearview mirror face. Refer to Mirror Face Replacement . Did you complete the replacement? |
- | Go to Step 23 | - |
| 20 | Replace the driver outside rearview mirror. Refer to Mirror Replacement - Power . Did you complete the replacement? |
- | Go to Step 23 | - |
| 21 |
IMPORTANT:
Perform the calibration procedure for the inside rearview mirror. Refer to Compass Calibration and Magnetic Variance
. Replace the inside rearview mirror. Refer to Rearview Mirror Replacement .Did you complete the replacement? |
- | Go to Step 23 | - |
| 22 | Replace the DDS. Refer to Control Module References
for replacement, setup, and programming. Is the replacement complete? |
- | Go to Step 23 | - |
| 23 | Operate the system in order to verify the repair. Did you correct the condition? |
- | System OK | Go to Step 2 |