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For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 1999 🢒 Isuzu MD Steel Tilt (F Model) 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Stop Lamps Inoperative - One

Stop Lamps Inoperative - One Left Rear

Step

Action

Value(s)

Yes

No

1
  1. Remove the bulb from the left rear taillamp socket.
  2. Connect a J 39200 between the WHT wire attached to the bulb socket and chassis ground.

Does the DMM indicate continuity?

--

Go to Step 2

Go to Step 3

2
  1. Disconnect the harness connector from the left rear taillamp assembly.
  2. Connect a test lamp between terminal C of the harness connector and chassis ground.
  3. Operate the brake pedal.

Does the test lamp light?

--

Go to Step 4

Go to Step 5

3
  1. Disconnect the taillamp assembly harness connector.
  2. Connect a J 39200 between terminal E in the Taillamp assembly harness connector and chassis ground.

Does the DMM indicate continuity?

--

Go to Step 7

Go to Step 6

4

Repair the open in the RED wire inside the taillamp assembly.

Is the repair complete?

--

System OK

--

5

Repair the open in CKT 18 (YEL), or CKT 134 (YEL) between the Turn and Hazard flasher and terminal 5 in the taillamp assembly harness connector.

Is the repair complete?

--

System OK

--

6

Repair the open in CKT 150 (BLK) between S 400 and terminal E in the taillamp assembly harness connector.

Is the repair complete?

--

System OK

--

7

Repair the open in the wire (WHT) inside the taillamp assembly.

Is the repair complete?

--

System OK

--

Stop Lamps Inoperative - One Right Rear

Step

Action

Value(s)

Yes

No

1
  1. Remove the bulb from the right rear taillamp socket.
  2. Connect a J 39200 between the WHT wire attached to the bulb socket and the chassis ground.

Does the DMM indicate continuity?

--

Go to Step 2

Go to Step 3

2
  1. Disconnect the harness connector from the right rear taillamp assembly.
  2. Connect a test lamp between terminal C of the harness connector and chassis ground.
  3. Operate the brake pedal.

Does the test lamp light?

--

Go to Step 4

Go to Step 5

3
  1. Disconnect the taillamp assembly harness connector.
  2. Connect a J 39200 between terminal E in the taillamp assembly harness connector and chassis ground.

Does the DMM indicate continuity?

--

Go to Step 7

Go to Step 6

4

Repair the open in the RED wire inside the taillamp assembly.

Is the repair complete?

--

System OK

--

5

Repair the open in the CKT 19 or CKT 135 (GRN) between the turn/hazard flasher and terminal 4 in the taillamp assembly harness connector.

Is the repair complete?

--

System OK

--

6

Repair the open in the CKT 150 (BLK) between S 400 and terminal E in the taillamp assembly harness connector.

Is the repair complete?

--

System OK

--

7

Repair the open in the white wire inside the taillamp assembly.

Is the repair complete?

--

System OK

--