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

Turn Signal Lamps and Indicators Inoperative - One Side Domestic

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

Are the left turn signal lamps operative?

--

Go to Step 7

Go to Step 3

3
  1. Disconnect connector C200 at the steering column.
  2. Connect a J 39200 DMM between connector C200, pin E9 for the pigtail wire of CKT 16 (PPL), and pin A7 for the pigtail wire of CKT 14 (LT BLU).
  3. Place the turn signal switch in the left turn position.

Is continuity present?

--

Go to Step 4

Go to Step 5

4

Repair the open in CKT 14 (LT BLU) between connector C200 and splice S236.

Are the left turn signal lamps operative?

--

Go to Step 7

Go to Step 5

5

Repair the open in the pigtail wire of CKT 14 (LT BLU) in the steering column.

Are the left turn signal lamps operative?

--

Go to Step 7

Go to Step 6

6

Replace the turn signal switch (part of the multi-function lever).

Are the turn signal lamps operative?

--

Go to Exterior Lights System Check

Go to Step 7

7

Are the right turn signal lamps operative?

--

Go to Exterior Lights System Check

Go to Step 8

8
  1. Disconnect connector C200 at the steering column.
  2. Connect a J 39200 DMM between connector C200, pin E9 for the pigtail wire of CKT 16 (PPL), and pin A6 for the pigtail wire of CKT 15 (DK BLU).
  3. Place the turn signal switch in the right turn position.

Is continuity present?

--

Go to Step 9

Go to Step 10

9

Repair the open in CKT 15 (DK BLU) between connector C200 and splice S237.

Are the turn signal lamps operative?

--

Go to Exterior Lights System Check

Go to Step 10

10

Repair the open in the pigtail wire of CKT 15 (DK BLU) in the steering column.

Are the turn signal lamps operative?

--

Go to Exterior Lights System Check

Go to Step 11

11

Replace the turn signal switch (part of the multi-function lever).

Are the turn signal lamps operative?

--

Go to Exterior Lights System Check

--

Turn Signal Lamps and Indicators Inoperative - One Side 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

Is the left turn signal lamp inoperative?

--

Go to Step 4

Go to Step 3

3

Is the right turn signal lamp inoperative?

--

Go to Step 7

--

4
  1. Disconnect connector C200 at the steering column.
  2. Connect a J 39200 DMM between connector cavity E9 on CKT 1697 (PPL) and cavity A7 on CKT 14 (LT BLU).
  3. Place the turn signal switch in the LEFT TURN position.

Is continuity present?

--

Go to Step 5

Go to Step 6

5

Locate and repair the opn in CKT 14 (LT BLU) between connector C200 and S236.

Is the repair complete?

--

Go to Exterior Lights System Check

--

6
  1. Locate and repair the open in CKT 14 (LT BLU) in the steering column.
  2. If there is no open, replace the turn signal switch. The turn signal switch is part of the mulitfunction switch.

Is the repair complete?

--

Go to Exterior Lights System Check

--

7
  1. Disconnect connector C200 at the steering column.
  2. Connect a J 39200 DMM between connector cavity E9 on CKT 1697 (PPL) and cavity A6 on CKT 15 (DK BLU).
  3. Place the turn signal switch in the RIGHT TURN position.

Is continuity present?

--

Go to Step 4

Go to Step 4

8

Locate and repair the opn in CKT 15 (DK BLU) between connector C200 and S237.

Is the repair complete?

--

Go to Exterior Lights System Check

--

9
  1. Locate and repair the open in CKT 15 (DK BLU) in the steering column.
  2. If there is no open, replace the turn signal switch. The turn signal switch is part of the mulitfunction switch.

Is the repair complete?

--

Go to Exterior Lights System Check

--