GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Tracker - 4WD 🢒 Body and Accessories 🢒 Entertainment 🢒 Radio Illumination Inoperative with Park Lamps On

Step

Action

Value(s)

Yes

No

1
  1. Disconnect the radio connector.
  2. Turn the headlamp switch to the PARK position.
  3. Turn the illumination controller to the LO (low intensity).
  4. Connect a J 39200 from the radio connector cavity 3 to ground.
  5. Measure the resistance.

Is the resistance above the specified value?

1 ohms

Go to Step 2

Go to Step 3

2

Repair the radio. Refer to Radio Replacement .

Is the repair complete?

--

Go to Radio/Audio System Check

--

3
  1. Disconnect the radio connector.
  2. Turn the headlamp switch to the PARK position.
  3. Turn the illumination controller to the LO (low intensity).
  4. Connect a J 39200 from the radio connector cavity 3 to ground.
  5. Measure the resistance.

Is the resistance below the specified value?

0.5 ohms

Go to Step 4

Go to Radio/Audio System Check

4

Repair the short to ground in the RED/GRN wire between the radio and the illumination controller. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Radio/Audio System Check

--