|
|
Content .. 1406 1407 1408 1409 ..
lamps supply voltage circuit is shorted to voltage Action Taken When the DTC Sets The I/P controls illumination lamps will not operate or are always ON. Conditions for Clearing the MIL/DTC This DTC will clear on current status after the condition for setting the fault is corrected. A history DTC will clear after 100 consecutive ignition cycles without a fault present. History and current DTCs can be cleared using a scan tool. Diagnostic Aids Perform a visual inspection for loose or poor connections at all related components. Refer to Test Description The numbers below refer to the step numbers on the diagnostic table. 2: This step determines by process of elimination which, if any, dimmable component is 3: This step determines if the problem exists in the wiring or the BCM. 5: After replacement of the BCM, you must calibrate the new module for proper operation. DTC B2622 or B2623 Step Action Yes No Schematic Reference: Interior Lights Dimming Schematics 1 Did you perform the Diagnostic System Go to Step 2 Go to Diagnostic System Check - Vehicle 1. Clear the DTC B2622 or B2623 with the scan tool. 2. Turn the park lamps ON. 3. Adjust the instrument panel (I/P) dimmer switch to a mid-range
2007 Hummer H3 2007 ACCESSORIES & EQUIPMENT Lighting - H3
|