Hi,

I have a question about the tail gate dome light in my 1994 850 Wagon.
The dome light does not come on when the tail gate is raised.
With a volt meter, I confirmed that 12V is getting to the bulb and the bulb is good.
Where is the Contact Switch that should turn on the light (ground) when the tailgate is opened?
I do not see any Contact Switches around the tailgate or in the latch assembly.

Not sure if it is related but my rear window washer motor does not spray any fluid.

Thanks,

-Kevin

 

the switch should be a rotary switch near the light itself. Also, is the bulb burned out?

 

I pulled out the dome light and used a volt meter to confirmed all is working in the lamp. The bulb is good, the switch in the lamp assembly is closed and I measure 12 Volts.
The wiring diagram for a 1995 shows a separate Tailgate Switch that goes to a ground. I can not find this switch.

Thanks,

-Kevin

 

The wire bundles in the drivers side hinge likely has broken wires in it.

 

RSPI - Thank you for the advice. I will check the driverside hinge for broken wires as soon as it stops raining here. Do you khow of any links that show the "hinge assembly"?

Attached is wiring diagram that shows a "Tailgate Switch".
Do you know where this is located?

Thanks,

-Kevin

 

The switch is built into the latch.

 

Hi - Any suggestions on how to diagnose if the issue is in the latch or the hinge wiring?

Thanks,

- Kevin

 

On the left D-pillar under the cover for the loudspeaker is a 14pole connector (black).
When the tailgate is open the cable on position 13 (blue-brown) should be grounded.
The "ground" is delivered from position 10 (black).
Maybe it's just a broken cable at the hinge.
Check with the multimeter / ohmmeter that black is ground, then check if position 13 is grounded when the tailgate is open.

Cristian