Speed signal and odometer not working
I have a Toyota Lexcen Jan/1994 which is a commodore VR V6 3800 Automatic Gear.
My problem started when the odometer was not working. So I took out the instrument cluster to have a look at it. I could not find anything wrong with it. I thought that it could be bad connections between the back of the instrument cluster and the 3 wiring square connectors where it goes into it. I cleaned all the connectors on both sides and tensioned them up a bit. That did not solve the problem. On the contrary I lost the speed signal and the tachometer. I did not disconnect the negative from the battery and I accidentally left the ignition key sitting in the lock in the totally off position. I thought maybe I damaged the cluster. So I bought a second hand one from a wrecker dealer and installed it.
The fuel,temperature and tachometer guages are working. The speed signal and the odometer are still not working.
I noticed, when I am driving, a repeating clicking sound is coming out of the Body Control Module. When I stop driving, the clicking sound stops. Is a relation between the BCM and the instrument cluster?
I had a look at the speed sensor on the automatic gear. There was a bit of oil leaking. I sprayed it with a degreaser and cleaned both terminals. I still have the problem.
Can anyone help?