GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Pickup - 4WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Stop Lamps Inoperative - Center High Mounted

Step

Action

Value(s)

Yes

No

1

Did you perform the Exterior Lights System Check?

--

Go to Step 2

Go to Exterior Lights System Check

2
  1. Remove the center high-mounted stoplamp.
  2. Connect a J 35616-200 test lamp between the center high-mounted stoplamp, cavity A for CKT 17 (WHT), and ground.
  3. Depress the brake pedal.

Does the test lamp light?

--

Go to Step 3

Go to Step 5

3
  1. Connect a J 35616-200 test lamp between cavity A and cavity B.
  2. Depress the brake pedal.

Does the test lamp light?

--

Go to Step 6

Go to Step 4

4

Repair the open in CKT 150 (BLK) between splice S421 and ground G400.

Is the repair complete?

--

Go to Exterior Lights System Check

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5

Repair the open in CKT 17 (WHT) between splice S410 and splice S422.

Is the repair complete?

--

Go to Exterior Lights System Check

--

6

Replace the center high-mounted stoplamp.

Is the repair complete?

--

Go to Exterior Lights System Check

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