For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Radio/Navigation System Schematics DEFINITION: When playing a video input source connected to the auxiliary RCA video jacks, the video is inoperative or degraded.
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle
2 |

1. Place the ignition switch in ON position. The Cadillac emblem screen appears on the navigation radio.
2. The vehicle remains in PARK.
3. Press the audio SRCE button on the radio. The audio menu appears on the display.
4. Press the TV button on the radio audio menu screen.
5. Select a TV station. The TV should be clear on the radio display.
6. Connect a VCR to the auxiliary RCA video jacks.
7. Select AUX under the audio menu.
8. Observe the display. The VCR selection should appear on the radio. The picture and audio should be clear.

Is the system OK?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3 | Test the operation of the TV in the navigation radio. Is the TV operation OK? | Go to Step 4 | Go to Step 10
4 | Test the auxiliary video low signal circuit for an open, short to ground, or a short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 11 | Go to Step 5
5 | Inspect the auxiliary video high signal circuit for an open, short to ground, or a short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 11 | Go to Step 6
6 | Test for a short from the auxiliary video high signal circuit to the auxiliary video low signal circuit. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 11 | Go to Step 7
7 | Inspect for poor connections at the harness connector of the auxiliary RCA video jacks. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 11 | Go to Step 8
8 | Replace the auxiliary RCA video jacks. Refer to Auxiliary Audio/Video Input Control Replacement . Did you find and correct the condition? | Go to Step 11 | Go to Step 9
9 | Inspect for poor connections at the harness connector 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 11 | Go to Step 10
10 | Replace the navigation radio. Refer to Control Module References . Is the replacement complete? | Go to Step 11 | --
11 | Operate the system to verify the repair. Is the failure removed? | System OK | Go to Step 3