GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2000 🢒 Isuzu MD Steel Tilt (F Model) 🢒 Body and Accessories 🢒 Entertainment 🢒 Radio Display Inoperative, No Sound from Speakers

Step

Action

Value(s)

Yes

No

1
  1. Disconnect the radio connector.
  2. Turn the ignition switch to the ACC or RUN position.
  3. Connect a digital multimeter (DMM) from the radio connector terminal 4 to ground.
  4. Measure the voltage.

Is the voltage more than the specified value?

10 V

Go to Step 2

Go to Step 4

2
  1. Connect a DMM between the radio connector cavities 4 and 9.
  2. Measure the voltage.

Is the voltage more than the specified value?

10 V

Go to Step 3

Go to Step 5

3
  1. Connect a DMM between the radio connector cavities 11 and 9.
  2. Measure the voltage.

Is the voltage more than the specified value?

10 V

Go to Step 6

Go to Step 7

4

Repair the open in CKT 315 (YEL) between the instrument panel (IP) fuse block and the radio.

Is the repair complete?

--

System OK

--

5

Repair the open in CKT 354 (BLK) between the radio and the splice pack 4.

Is the repair complete?

--

System OK

--

6
  1. Check for shorts in the cavities of the radio connector.
  2. Repair any shorts in the radio connector.
  3. If no shorts were found, remove the radio for repair.

Is the repair complete?

--

System OK

--

7

Repair the open in CKT 350 (ORN) and CKT 150 (ORN) between the radio and the IP fuse block.

Is the repair complete?

--

System OK

--