How do I access the wiring on my turn signal stock for troubleshooting?

Hi,

You can remove the shroud around the column, but that isn't going to get you to the multi function switch. To access that wiring, the steering wheel does need removed. As far as the air bag, here is what the manual says.

Warning: following disconnection of the battery, a period of at least one minute must be allowed to elapse before any work is carried out on an air bag module.

I would allow it to sit for approximately 20 minutes.

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Here are directions for removal of the switch. The attached pics correlate with the directions.

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1999 Jaguar XJ-8 Sedan (X308) V8-4.0L (AJ27)
Flasher/Headlamp/Trip Switch
Vehicle Sensors and Switches Sensors and Switches - Lighting and Horns Combination Switch Service and Repair Procedures Flasher/Headlamp/Trip Switch
FLASHER/HEADLAMP/TRIP SWITCH

Flasher/Headlamp/Trip Switch

Removal
1. Disconnect battery ground cable.

2. NOTE: Steering wheel must be in straight ahead position.

Remove steering wheel.

Pic 1

3. Displace cancellation module connector from mounting bracket and disconnect.

Pic 2

4. Displace flasher/headlamp/trip switch connectors from mounting bracket and disconnect.
- Cut and remove appropriate harness securing ties.

Pic 3

5. Remove switchgear.
1. Remove two screws which secure switch assembly/cancellation module to mounting bracket.
2. Displace switchgear from mounting bracket.
3. Route switchgear harness through mounting bracket and remove switchgear.

Installation
1. Installation is reverse of removal.

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Let me know if this helps.

Joe