GM Service Manual Online
For 1990-2009 cars only

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 C 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

Measure the voltage between cavity A 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 6

Go to step 7

5

Repair the short to B+ in circuit 2056 between cavity C of the Aux RCA Video Jacks connector and cavity 19 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 cavity C of the Aux RCA Video Jacks harness connector and ground with a DMM.

Is the resistance measured within the specified range?

0-2 ohms

Go to step 8

Go to step 9

7

Repair the short to B+ in circuit 2057 between cavity A of the Aux RCA Video Jacks connector and cavity 6 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 cavity A of the Aux RCA Video Jacks harness connector and ground with a DMM.

Is the resistance measured within the specified range?

0-2 ohms

Go to step 10

Go to step 11

9

Repair the short to ground in circuit 2056 between cavity C of the Aux RCA Video Jacks connector and cavity 19 of the Navigation Display Module connector C3. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Navigation System Check

--

10

  1. Disconnect the Navigation Display Module connector C3.
  2. Measure the resistance between cavity C of the Aux RCA Video Jacks harness connector and cavity 19 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 12

Go to step 13

11

Repair the short to ground in circuit 2057 between cavity A of the Aux RCA Video Jacks connector and cavity 6 of the Navigation Display Module connector C3. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Navigation System Check

--

12

Measure the resistance between cavity A of the Aux RCA Video Jacks harness connector and cavity 6 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 14

Go to step 15

13

Repair the open in circuit 2056 between cavity C of the Aux RCA Video Jacks connector and cavity 19 of the Navigation Display Module connector C3. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Navigation System Check

--

14

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

Is the resistance measured within the specified range?

0-2 ohms

Go to step 16

Go to step 18

15

Repair the open in circuit 2057 between cavity A of the Aux RCA Video Jacks connector and cavity 6 of the Navigation Display Module connector C3. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Navigation System Check

--

16

Measure the resistance between pin a of the Aux RCA Video Jacks pigtail connector and the female portion of the YELLOW Aux RCA Video Jack with a DMM.

Is the resistance measured within the specified range?

0-2 ohms

Go to step 17

Go to step 18

17

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

--

18

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

--