Ask a Car Mechanic and Get Answers to Your Car Questions ASAP
Hi Pete, I do have a multi meter and can test wires. Please let me know the procedure to test the switch. Kurt
Hi Pete, what is the procedure for removing the switch? Do I need to remove the steering wheel? Kurt
Hi Pete, I have had a chance to test the Jaguar XJS headlight switch. Please review the following table (C=Cold/No Voltage, H=Hot/12 Volts):
B = Black
BL = Blue
BR = Brown/Red Stripe
BB = Brown/Black Stripe
BP = Black/Pink Stripe
Key/Switch Off Key off/Switch on Key on/Switch off Key/Switch On
B C C C C
BL C C H H
BR H C H C
BB C C H H
BP C C C C
Based on above, the only wire that has battery voltage on it with the key on or off AND the switch OFF is the Brown/red stripe wire.
What do you think is the problem? (switch shorted?/bad relay?)
Hi Pete, sent you a table of the wire testing. Please review and get back to me. Kurt
Note: Based on testing, the only wire that has battery voltage on it with the key on or off AND the switch OFF is the Brown/red stripe wire.
Hi Pete, Ok - here goes:
Black - Always Cold
Blue - Cold with Key off, Hot with Key on AND Hot with Parking switch on.
Brown/Red Stripe - Hot with Key off, Hot with Key on AND Cold with Parking switch on.
Brown/Black Stripe - Cold with Key off, Hot with Key on AND Hot with Parking switch on.
Black/Pink Stripe - Always Cold.
Yes, that is correct.