Test Description
WARNING: This page is about a different car, the 2007 Cadillac CTS. 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.
- 1: This step determines if the malfunction is present.
- 2: This step verifies that the DTC sets under normal operating systems.
DTC U2153
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Radio/Navigation System Schematics Connector End View Reference: Entertainment/Communication Connector End Views |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 |
|
Go to Step 3 | Go to Diagnostic System Check - Vehicle |
| 3 | Test the vehicle information communication system (VICS) (+) circuit for the following:
Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? |
Go to Step 9 | Go to Step 4 |
| 4 | Test the VICS (-) circuit for the following:
Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? |
Go to Step 9 | Go to Step 5 |
| 5 | Inspect for poor connections at the harness connectors of the VICS Module Assembly. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 6 |
| 6 | Inspect for poor connections at the harness connectors of the navigation radio. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 7 |
| 7 | Replace the VICS Module Assembly. Refer to the VICS dealer installation instructions. Did you find and correct the condition? |
Go to Step 9 | Go to Step 8 |
| 8 | Replace the navigation radio. Refer to Control Module References
for replacement, setup and programming. Did you complete the repair? |
Go to Step 9 | - |
| 9 |
|
Go to Step 2 | System OK |