Turn Signal Lamps and Indicators Inoperative - Front. GMC Truck Savana 1999

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 1999 🢒 Savana 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Turn Signal Lamps and Indicators Inoperative - Front

Turn Signal Lamps and Indicators Inoperative - Front Domestic

Step

Action

Value(s)

Yes

Was the Exterior Lights System Check performed?

Go to Step 2

Go to Exterior Lights System Check

Turn the ignition switch to the RUN position.
Disconnect connector C200.
Use an unpowered test lamp to probe between connector C200 pin A2 of CKT 139 (PNK) and ground.

Does the test lamp light?

Go to Step 4

Go to Step 3

Locate and repair the open in CKT 139 (PNK) between the IP fuse block and C200.

Is the repair complete?

Go to Exterior Lights System Check

Verify that the hazard warning switch is fully in the OFF position.
Connect a J 39200 DMM ) between connector C200 cavity A2 of CKT 139 (PNK) and cavity A3 of CKT 1508 (LT BLU).

Is continuity present?

Go to Step 6

Go to Step 5

•	Locate and repair the open in CKT 139 (PNK) or CKT 1508 (LT BLU).

•	If there are no opens, then replace the hazard warning switch.

Is the repair complete?

Go to Exterior Lights System Check

Connect a J 39200 DMM between connector C200 cavity E9 of CKT 1697 (PPL) and ground.

Is continuity present?

Go to Step 7

Go to Step 8

Locate and repair the short to ground in CKT 1697 (PPL) in the steering column.
If the wire is not shorted, then replace the turn signal switch. The turn signal switch is part of the multifunction switch.

Is the repair complete?

Go to Exterior Lights System Check

Move the turn signal switch to the LEFT TURN position.
Connect a J 39200 DMM between connector C200 cavity E9 of CKT 1697 (PPL) and cavity A7 of CKT 14 (LT BLU).

Is continuity present?

Go to Step 10

Go to Step 9

•	Locate and repair the open to CKT 1697 (PPL) in the steering column.

•	If there is no open, replace the turn signal switch.

Is the repair complete?

Go to Exterior Lights System Check

Disconnect the connector at the turn/hazard lamp flasher.
Connect a J 39200 DMM between connector C200 pin A3 and turn/hazard lamp flasher connector cavity B9 for CKT 1508 (LT BLU).

Is continuity present?

Go to Step 12

Go to Step 11

Locate and repair the open in CKT 1508 (LT BLU) between connector C200 and the turn/hazard lamp flasher.

Is the repair complete?

Go to Exterior Lights System Check

Connect a J 39200 DMM between connector C200 pin E9 on CKT 16 (PPL) and ground.

Is continuity present?

Go to Step 13

Go to Step 14

Locate and repair the short to ground in CKT 16 (PPL) between the turn/hazard lamp flasher and connector C200.

Is the repair complete?

Go to Exterior Lights System Check

Connect a J 39200 DMM between connector C200 pin E9 on CKT 16 (PPL) and the turn/hazard lamp flasher connector cavity B7.

Is continuity present?

Go to Step 16

Go to Step 15

Locate and repair the open in CKT 16 (PPL) between the turn/hazard lamp flasher and connector C200.

Is the repair complete?

Go to Exterior Lights System Check

Connect a J 39200 DMM between turn/hazard lamp flasher connector cavity C8 on CKT 150 (BLK) and ground.

Is continuity present?

Go to Step 16

Replace the turn/hazard lamp flasher.

Is the repair complete?

Go to Exterior Lights System Check

Locate and repair the open in CKT 150 (BLK) between the turn/hazard lamp flasher and G201.

Is the repair complete?

Go to Exterior Lights System Check

Turn Signal Lamps and Indicators Inoperative - Front Export

Step	Action	Value(s)	Yes	No
1	Was the Exterior Lights System Check performed?	--	Go to Step 2	Go to Exterior Lights System Check
2	Turn the ignition switch to the RUN position. Disconnect connector C200. Use an unpowered test lamp to probe between connector C200 pin A2 of CKT 139 (PNK) and ground. Does the test lamp light?	--	Go to Step 4	Go to Step 3
3	Locate and repair the open in CKT 139 (PNK) between the IP fuse block and C200. Is the repair complete?	--	Go to Exterior Lights System Check	--
4	Verify that the hazard warning switch is fully in the OFF position. Connect a J 39200 DMM ) between connector C200 cavity A2 of CKT 139 (PNK) and cavity A3 of CKT 1508 (LT BLU). Is continuity present?	--	Go to Step 6	Go to Step 5
5	Locate and repair the open in CKT 139 (PNK) or CKT 1508 (LT BLU). If there are no opens, then replace the hazard warning switch. Is the repair complete?	--	Go to Exterior Lights System Check	--
6	Connect a J 39200 DMM between connector C200 cavity E9 of CKT 1697 (PPL) and ground. Is continuity present?	--	Go to Step 7	Go to Step 8
7	Locate and repair the short to ground in CKT 1697 (PPL) in the steering column. If the wire is not shorted, then replace the turn signal switch. The turn signal switch is part of the multifunction switch. Is the repair complete?	--	Go to Exterior Lights System Check	--
8	Move the turn signal switch to the LEFT TURN position. Connect a J 39200 DMM between connector C200 cavity E9 of CKT 1697 (PPL) and cavity A7 of CKT 14 (LT BLU). Is continuity present?	--	Go to Step 10	Go to Step 9
9	Locate and repair the open to CKT 1697 (PPL) in the steering column. If there is no open, replace the turn signal switch. Is the repair complete?	--	Go to Exterior Lights System Check	--
10	Disconnect the connector at the turn/hazard lamp flasher. Connect a J 39200 DMM between connector C200 pin A3 and turn/hazard lamp flasher connector cavity B9 for CKT 1508 (LT BLU). Is continuity present?	--	Go to Step 12	Go to Step 11
11	Locate and repair the open in CKT 1508 (LT BLU) between connector C200 and the turn/hazard lamp flasher. Is the repair complete?	--	Go to Exterior Lights System Check	--
12	Connect a J 39200 DMM between connector C200 pin E9 on CKT 16 (PPL) and the turn/hazard lamp flasher connector cavity B7. Is continuity present?	--	Go to Step 13	Go to Step 14
13	Locate and repair the short to ground in CKT 16 (PPL) between the turn/hazard lamp flasher and connector C200. Is the repair complete?	--	Go to Exterior Lights System Check	--
14	Connect a J 39200 DMM between connector C200 pin E9 on CKT 16 (PPL) and ground. Is continuity present?	--	Go to Step 16	Go to Step 15
15	Locate and repair the open in CKT 16 (PPL) between the turn/hazard lamp flasher and connector C200. Is the repair complete?	--	Go to Exterior Lights System Check	--
16	Connect a J 39200 DMM between turn/hazard lamp flasher connector cavity C8 on CKT 150 (BLK) and ground. Is continuity present?	--	Go to Step 16	Go to Step 16
17	Replace the turn/hazard lamp flasher. Is the repair complete?	--	Go to Exterior Lights System Check	--
18	Locate and repair the open in CKT 150 (BLK) between the turn/hazard lamp flasher and G201. Is the repair complete?	--	Go to Exterior Lights System Check	--