GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 Savana 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Stop Lamps Always On

Stop Lamps Always On 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
  1. Disconnect the connector at the TCC/Stoplamp switch.
  2. Connect an unpowered test lamp between the TCC/Stoplamp switch connector cavity F for CKT 17 (WHT) and ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Repair the short to voltage on CKT 17 (WHT) between the TCC/Stoplamp switch and the stop lamp bulbs.

Is the repair complete?

--

Go to Exterior Lights System Check

--

4

Replace the TCC/Stoplamp switch.

Is the repair complete?

--

Go to Exterior Lights System Check

--

Stop Lamps Always On 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
  1. Disconnect the connector at the TCC/Stoplamp switch.
  2. Connect an unpowered test lamp between the TCC/Stoplamp switch connector cavity F for CKT 17 (WHT) and ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Repair the short to voltage on CKT 17 (WHT) between the TCC/Stoplamp switch and the stop lamp bulbs.

Is the repair complete?

--

Go to Exterior Lights System Check

--

4

Replace the TCC/Stoplamp switch.

Is the repair complete?

--

Go to Exterior Lights System Check

--