Cargo Lamp Indicator Turns On Briefly When Dome/Glove Box Lamp Is Activated - keywords licker indicator switch
| Subject: | Cargo Lamp Indictor Turns On Briefly When Dome/Glove Box Lamp Is Activated |
| Models: | 2003-2006 Cadillac Escalade EXT |
| 2003-2006 Chevrolet Avalanche |
| 2003-2007 Chevrolet Silverado Classic |
| 2003-2007 GMC Sierra Classic |
This PI was superseded to update model years. Please discard PIT3553.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
A customer may comment that the Cargo lamp indictor turns on briefly when the dome or glove box lamps are turned on.
Recommendation/Instructions:
To correct this back feed from ckt 149 to ckt 1732 a diode must be installed in ckt 149.
On Full Size Trucks, use SI Document ID # 870692 and install diode part number 12112422 in ckt 149 between the cargo lamp and I/P Relay Block C3 terminal "D".
On Avalanche and Escalade EXT, use SI Document ID # 1247803 and install diode part number 12112422 in ckt 149 at connector C390. Connector C390 is located on the right side of the right rear window latch, behind the rear upper garnish molding (See SI Document ID # 803557).
Note: The diode must go between the 2 wires from the cargo lamp and the 2 wires to the switch and TBCM.
Additional Note: Install the diode so the silver band on the diode is towards the TBCM reference voltage side.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
