'98 Buick Park Avenue Signal Switch Replacement

Service Information
2002 Buick Park Avenue ' Park Avenue (VIN C) Service Manual ' Body and Accessories ' Lighting Systems ' Description and Operation ' Document ID: 643323


Turn Signal/Cornering Lamps
The HZDT/SIG fuse in the fuse block - underhood - left supplies battery positive voltage to the turn signal/hazard flasher module and have ground at G202. The turn signal lamps may only be activated with the ignition switch in the ON or ACCY position. The T/SIG fuse in the fuse block - underhood - left supplies battery positive voltage to the turn signal switch. When the turn signal switch is placed in either the left or right position, current flow is from the turn signal switch assembly to the turn signal/hazard flasher module. The turn signal/hazard flasher module then sends an on-off voltage signal to either the left or right turn signals and their instrument cluster (IPC) indicator. When the hazard switch is pressed, all the turn signal lamps will flash including both IPC turn signal indicators. The left turn signals have ground at G106, G400 and at G402. The right turn signals have ground at G105 and G400. The turn signal switch supplies battery positive voltage to the cornering lamps, the left cornering lamp has ground at G105 and the right cornering lamp has ground at G106.











2002 Buick Park Avenue ' Park Avenue (VIN C) Service Manual ' Body and Accessories ' Lighting Systems ' Description and Operation ' Document ID: 643323

You'll need to find a wiring diagram an component location chart to check this out . Here is a diagnostic flow chart for trouble shooting this problem ! Do you know how to use a voltmeter ?
DEFINITION: This table diagnoses inoperative turn signals on one side. It assumes that the cornering lamps, hazard lamps, and turn signals on the other side all operate properly.

1

Did you perform the Exterior Lights System Check?
--
Go to Step 2 - yes
Go to Exterior Lights System Check - no

2

1. Disconnect the turn signal flasher connector.
2. Turn the ignition switch to the RUN position.
3. Place the turn signal switch in the appropriate position.
4. Connect a DMM from the appropriate turn signal flasher connector cavity to ground:

?€¢
LH: cavity C (ORN)

?€¢
RH: cavity B (BLK)

Is the voltage within the specified range?
10-15 V
Go to Step 3 yes
Go to Step 5 no

3

Connect a fused jumper between the appropriate turn signal flasher connector cavities:
?€¢
LH: cavity C (ORN) to cavity D (YEL)

?€¢
RH: cavity B (BLK) to cavity F (TAN)

Do the appropriate turn lamps light without flashing?
--
Go to Step 4 yes
Go to Step 6 no

4

Replace the turn signal flasher. Refer to Hazard and Turn Signal Flasher Replacement .
Is the repair complete?
--
Go to Exterior Lights System Check
--

5

Repair the open in the appropriate circuit:
?€¢
LH: CKT 57 (ORN) between S200 and the turn signal flasher

?€¢
RH: CKT 58 (BLK) between S201 and the turn signal flasher

Refer to Wiring Repairs in Wiring Systems.
Is the repair complete?
--
Go to Exterior Lights System Check
--

6

Repair the open in the appropriate circuit between the turn signal flasher and the IP fuse block:
?€¢
LH: CKT 685 (YEL)

?€¢
RH: CKT 686 (TAN)

Refer to Wiring Repairs in Wiring Systems.
Is the repair complete?
--
Go to Exterior Lights System Check

i have a 98 buick park avenue
i got a problem running it. it start but when i hit the break pedal some light comes out the direction signal and it shuts off i check all the fuse

Did you check the fuse for the low beams? The high and low are on seperate circuits..
Good Luck...

Hi you may have a poor earth connection to the lights or a wire from the lights is touching the car body or another wire.

Was the relay switch new that you replaced? the one behind the dash?

Regards
Dan

remove the cover and you will see the bolts holding it on.some times you have to remove the steering wheel.you have to disconect the wire harness as well.

I have a 98 Bucik Park Avenue. I recently had it painted and when the body man put the lights back in I began having problems with the brake lights and turn signal lights. Only one brake light lights up and only on signal light lightsup and they are on opposite sides. I have changed the bulbs (all) and I have tested the fuses(All).

If the left side still works, its not the blinker relay, the thing you hear ticking. Both left and right signals go through the same signal stat. Turn on your hazard flashers and make sure the bulbs on both the left and right side come on. If the do, you may have a problem with the turn signal switch on the steering column itself. If only the left comes on, it could be bad bulbs on the right side or a wiring issue. Wiring issues are more rare on Park Aves.

sounds like the signal canceling cam is not operating for one of 2 reasons. Either the cam canceller is broken or the signal switch has a broken plastic tab. The steering wheel must be removed to inspect and diagnose

REplacing of the turn signal switch invoves the removal of the air bag and steering wheel for acess to the switch ( reminder to unplug the yellow connector for the air bag under dash first).