GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC Suburban - 2WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Hazard Lamps Inoperative

Step

Action

Value(s)

Yes

No

1

Did you perform the Exterior Lamps System Check?

--

Go to Step 2

Go to Exterior Lights System Check

2
  1. Turn the ignition switch to the RUN position.
  2. Place the turn signal in the ON position.

Does the turn signal operate?

--

Go to Step 8

Go to Step 3

3

Connect a J 35616-200 from CKT 139 (PNK) at connector C266, terminal A2, to ground.

Does the test lamp light?

--

Go to Step 4

Go to Step 12

4
  1. Ensure that the turn signal is in the ON position.
  2. Connect a J 35616-200 from CKT 1508 (LT BLU) at connector C266, terminal A3, to ground.

Does the test lamp light?

--

Go to Step 5

Go to Step 13

5

Connect a J 35616-200 from CKT 1508 (LT BLU) and CKT 150 (BLK) at the turn/hazard flasher, terminal H9 to terminal G8.

Does the test lamp light?

--

Go to Step 7

Go to Step 6

6
  1. Ensure that the turn signal is in the ON position.
  2. Connect a J 35616-200 from CKT 1508 (LT BLU) at the turn signal/hazard flasher, terminal H9, to ground.

Does the test lamp light?

--

Go to Step 14

Go to Step 15

7
  1. Turn the turn signal to the OFF position.
  2. Connect a self-powered test lamp from CKT 1697 (PPL) from the turn/hazard flasher, terminal H7, to connector C266, terminal E9.

Does the test lamp light?

--

Go to Step 11

Go to Step 16

8

Connect a J 35616-200 from CKT 140 (ORN) at connector C266, terminal E8, to ground.

Does the test lamp light?

--

Go to Step 9

Go to Step 17

9
  1. Turn the hazard switch to the ON position.
  2. Connect a test lamp from CKT 1696 (GRY) at connector C266, terminal E1, and ground

Does the test lamp light?

--

Go to Step 10

Go to Step 13

10

Connect a J 35616-200 from CKT 1696 (GRY) at the turn/hazard flasher, terminal H8, and ground.

Does the test lamp light?

--

Go to Step 18

Go to Step 19

11
  1. Turn the hazard switch to the ON position.
  2. Reconnect the turn/hazard flasher.
  3. Connect a J 35616-200 from CKT 1697 (PPL) at connector C266, terminal E9, and ground.

Does the test lamp light?

--

Go to Step 13

Go to Step 18

12

Repair the open in CKT 139 (PNK) between the instrument panel fuse block and connector C266.

Is the repair complete?

--

Go to Exterior Lights System Check

--

13

Replace the turn/hazard switch.

Is the repair complete?

--

Go to Exterior Lights System Check

--

14

Repair the open in CKT 150 (BLK) between the turn/hazard flasher and ground G200.

Is the repair complete?

--

Go to Exterior Lights System Check

--

15

Repair the open in CKT 1508 (LT BLU) between the turn/hazard flasher and ground G200.

Is the repair complete?

--

Go to Exterior Lights System Check

--

16

Repair the open in CKT 1697 (PPL) between the turn/hazard flasher and connector C266.

Is the repair complete?

--

Go to Exterior Lights System Check

--

17

Repair the open in CKT 139 (ORN) between connector C266 and the instrument panel fuse block.

Is the repair complete?

--

Go to Exterior Lights System Check

--

18

Replace the run/hazard flasher.

Is the repair complete?

--

Go to Exterior Lights System Check

--

19

Repair the open in CKT 1696 (GRY) between the turn/hazard flasher and connector C266.

Is the repair complete?

--

Go to Exterior Lights System Check

--