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

Step

Action

Value(s)

Yes

No

1

Did you perform the Interior Lights System Check?

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Go to Step 2

Go to Interior Lamps System Check

2
  1. Disconnect the headlamp and panel dimmer switch connector.
  2. Place the headlamp and panel dimmer switch in the PARK position.
  3. Adjust the headlamp and panel dimmer switch to the parade mode detent position.
  4. Connect a self-powered test lamp between cavity H and cavity N of the headlamp and panel dimmer switch connector.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Repair the open in CKT 1382 (WHT) between the headlamp and panel dimmer switch and splice S216.

Is the repair complete?

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Go to Interior Lamps System Check

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4

Replace the headlamp and panel dimmer switch.

Is the repair complete?

--

Go to Interior Lamps System Check

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