GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Park Avenue 🢒 Body and Accessories 🢒 Horns 🢒 Horns Inoperative - One Horn

Step

Action

Value(s)

Yes

No

1

Was the Horns System Check performed?

--

Go to Step 2

Go to Horns System Check

2
  1. Disconnect the inoperative horn.
  2. Connect a test lamp between horn terminal B and ground.
  3. Press the horn switch.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3
  1. Connect a test lamp between horn terminal A and terminal B.
  2. Press the horn switch.

Does the test lamp light?

--

Go to Step 6

Go to Step 5

4

Repair the open or the poor connection in CKT 29 (DK GRN).

Did you complete the repair?

--

Go to Horns System Check

--

5

Repair the poor connection or the open in CKT 150 (BLK) or CKT 250 (BLK).

Did you complete the repair?

--

Go to Horns System Check

--

6

Replace the horn.

Did you complete the repair?

--

Go to Horns System Check

--