Test Description
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 numbers below refer to the step numbers on the diagnostic table.
- 2: This step checks the condition of the cellular and navigation antenna.
- 3: This step tests the condition of the cellular antenna coax and for proper ground of the cellular antenna.
DTC B2470
| Step | Action | Value | Yes | No |
|---|---|---|---|---|
| Schematic Reference: OnStar Schematics Connector End View Reference: Cellular Communication Connector End Views |
||||
| 1 | Did you perform the Cellular Communication Diagnostic System Check? | - | Go to Step 2 | Go to Diagnostic System Check - Cellular Communication |
| 2 | Inspect the cellular and navigation antenna assembly for damage. Is the antenna assembly damaged? |
- | Go to Step 7 | Go to Step 3 |
| 3 |
|
- | Go to Step 4 | Go to Step 5 |
| 4 |
|
1 Ω | Go to Step 8 | Go to Step 6 |
| 5 | Inspect for poor connections at the harness connector of the VCIM. 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 10 | Go to Step 9 |
| 6 | Inspect for poor connections at the harness connector of the cellular and navigation antenna. 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 10 | Go to Step 7 |
| 7 | Replace the cellular and navigation antenna. Refer to Antenna Assembly Replacement - Cellular and Navigation . Did you complete the replacement? |
- | Go to Step 10 | - |
| 8 | Replace the cellular antenna coax. Did you complete the replacement? |
- | Go to Step 10 | - |
| 9 | Replace the VCIM. Refer to Communication Interface Module Replacement . Did you complete the replacement? |
- | Go to Step 10 | - |
| 10 |
|
- | Go to Step 2 | System OK |