GM Service Manual Online
For 1990-2009 cars only

Auxiliary RCA Video Jacks - Audio Inoperative or Degraded Quality 98

Step

Action

Value(s)

Yes

No

1

Was the entire Navigation System Check performed?

--

Go to step 2

Go to Navigation System Check

2

Verify that the video component connected to the vehicle is operating properly.

Is the video component operating properly?

--

Go to step 3

System OK

3

  1. Disconnect the Aux RCA Video Jacks connector.
  2. Measure the voltage between cavity F of the Aux RCA Video Jacks harness connector and ground with a DMM.

Is the voltage measured within the specified range?

0 V

Go to step 4

Go to step 5

4

  1. Disconnect the Navigation Display Module connector C3.
  2. Measure the resistance between cavity F of the Aux RCA Video Jacks harness connector and cavity 17 of the Navigation Display Module harness connector C3 with a DMM.

Is the resistance measured within the specified range?

0-2 ohms

Go to step 6

Go to step 7

5

Repair the short to B+ in the drain circuit between cavity F of the Aux RCA Video Jacks connector and cavity 17 of the Navigation Display Module connector C3. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Navigation System Check

--

6

Measure the resistance between pin F of the Aux RCA Video Jacks pigtail connector and the male portion of the RED Aux RCA Video Jack with a DMM.

Is the resistance measured within the specified range?

0-2 ohms

Go to step 8

Go to step 10

7

Repair the open in the drain circuit between cavity F of the Aux RCA Video Jacks connector and cavity 17 of the Navigation Display Module connector C3. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Navigation System Check

--

8

Measure the resistance between pin F of the Aux RCA Video Jacks pigtail connector and the male portion of the WHITE Aux RCA Video Jack with a DMM.

Is the resistance measured within the specified range?

0-2 ohms

Go to step 9

Go to step 10

9

Replace the Navigation Display Module. Refer to Navigation Display Module Replacement in Instrument Panel, Gauges and Console.

Is the replacement complete?

--

Go to Navigation System Check

--

10

Replace the Aux RCA Video Jacks. Refer to Auxiliary Audio/Video Input Control Replacement in Instrument Panel, Gauges and Console.

Is the replacement complete?

--

Go to Navigation System Check

--