QuestionRoland: The diode package checked out okay and so too did the high beam relay. I'm stumped as to why I have no bright lights. The high beam light on the instrument cluster does not come on and the low beam lights shut off when I activate the dimmer switch which I believe is good electrically (but now I wonder). Is the body computer involved in this circuit? Thanks. TG
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I have no bright lights when activating the dimmer switch on the dashboard. The switch checks out per a procedure outlined in this website and the turn signal portion of this dual switch works just fine. The bright headlight bulbs are good. There are 13 relays behind the left kick panel. I've seen a high beam relay mentioned in some literature but need a description of the relays in each location. Can you help me identify which one is the high beam relay and which one is the diode package relay? From top to bottom there are five rows with three in the top, four in the next, then three, then two and one in the bottom row. Thanks. TG
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Hi Tim,
The relays from top to bottom, front to back:
park, low beam, high beam;
headlamp door motors, door open, door close, auto door lock;
diode package, left rear turn/stop, right rear turn/stop;
left front turn, right front turn;
horn.
Very interesting wiring this year!
AnswerHi Tim,
No the circuit is pretty simple. The hi-beam relay should have 12V on two of its pins, all the time. The red/yellow wire from the socket on one of the cold pins goes to the dimmer switch pin #3 which is then grounded by either asking for the high beam or the optical horn position at the dimmer, which activates the relay and provides power on a red/orange wire to fuses 19 and 20 for the left and right hi beam filaments and the hi beam indicator at the dash. So see if you have 12V at the two pins of the relay, and then that the red/yellow wire (either at the relay or at switch) is being grounded or not. It may just be a poor contact in the switch itself.
Roland
