Diagnostic Aids
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The cause of the malfunction could be intermittent. Refer to Testing for Intermittent Conditions and Poor Connections .
DTC B3826
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Body Rear End Schematics Connector End View Reference: Body Rear End Connector End Views and Body Control System Connector End Views |
|||
| 1 | Did you perform the Body Rear End Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Body Rear End |
| 2 |
|
Go to Diagnostic Aids | Go to Step 3 |
| 3 |
|
Go to Step 6 | Go to Step 4 |
| 4 | Test the signal circuit of the liftgate key cylinder unlock switch for a short to ground or an open. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 9 | Go to Step 5 |
| 5 | Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 9 | Go to Step 7 |
| 6 | Inspect for poor connections at the harness connector of the liftgate key cylinder switch. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 9 | Go to Step 8 |
| 7 |
IMPORTANT:
Perform the set up procedure for the BCM. Replace the Body Control Module (BCM). Refer to Body Control Module Replacement
in Body Control Systems.Did you complete the replacement? |
Go to Step 9 | - |
| 8 | Replace the liftgate key cylinder switch. Refer to Lock Cylinder Replacement - Endgate in Body Rear End. Did you complete the replacement? |
Go to Step 9 | - |
| 9 |
|
Go to Step 2 | System OK |