At 01:33 PM 1/29/97 +0000, you wrote:
>
>1) Right turn signals don't work (front or back), and indicator
>on dashboard lights up solid when you try to signal for a right turn.
>
>2) Left-turn blinkers work perfectly, and so does the left-turn dash
>indicator.
>
>3) Hazard switch flashes all four corners normally, but the right-turn
indicator
>on the dash does nothing (stays dark), while the left-turn dash
>indicator flashes appropriately.
>
>That's all you need. Identify the offending wire, by source
>and destination, and tell whether it's shorted to ground or
>opened up (disconnected). Good luck!!!
>
>P.S. Bonus points if you can explain how this fault caused
>each of the above three symptoms.
>
Okay, take a guess..............
Adjacent to the turn signal switch is a connecting header. The Green/White
(GW) wire from the switch goes to the header where it splits. One wire goes
to the turn signal indicator and the other goes to a four wire inline
connector. and from there to the turn signal lamps and the hazard switch.
This wire, between the header and the inline connector is the problem. It's
open.
Bonus point section:
1) When the right turn signal switch is closed power is fed from the switch
to the header and from there to the dash indicator. The other wire, the
one that's open, feeds the indicator lamps so they remain dark. The dash
indicator fails to blink because there is insufficient current drawn by the
dash lamp alone to operate the flasher. Therefore when the switch is closed
the dash lamp lights steady but the actual indicators remain dark.
2) Left turn signals are a complete seperate circuit after the common hot
wire (Light Green / Brown) at the switch. All lights work and sufficient
current is drawn to operate the flasher which is by the way in the hot wire
(Green) BEFORE the switch.
3) Selecting the Harzard lamps opens the Green wire to the turn flasher and
the turn switch disabling them. Power is then fed from the Brown (always
hot) wire at the hazard switch through the hazard flasher and then into the
left (Green / red) and right (Green / white) wires which flash all four
indicators. Because the wire from the four-way inline connector to the
header is open the hazard flasher signal does not reach the header from
where the dash indicator is fed so the right dash lamp does not light.
This is based on a drawing for a 1971 North American B. Should be close ithink.
Cheers, eh!
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