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1G Turn signal help please!!

Posted by BoostedTT91, May 26, 2019

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  1. BoostedTT91

    BoostedTT91 Proven Member

    268
    4
    Joined Aug 2, 2004
    Elysburg, Pennsylvania
    I'm to the point of desperation here everyone. I can not figure out why my turn signals won't work. I have tried everything I can think of. It's a 91 talon tsi.
    My hazards work fine, all bulbs flash. Replaced all the bulbs, have tried a new hazard switch, turn signal column switches, new relays, fuses and hazard flasher.
    With the new flasher it will kinda click the 1st time I tried it but then stops. I have gone through the wiring diagram and manual 100x and just can not figure it out. Please someone help, need a fresh prospective on this.
     
  2. jakk220

    jakk220 Proven Member

    1,134
    229
    Joined Nov 13, 2010
    Akron, Ohio
    I would be checking the wiring to the turn signal switch if the hazards are working.
     

    218  1

    1991 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    1K  3

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    Street Build 1K  1

    1993 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
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  3. ThunderChild

    ThunderChild Supporting VIP

    2,430
    639
    Joined Jan 5, 2012
    Rathdrum, Idaho
    Sounds like a grounding issue for the switch or relay. Have you checked to ensure the lights have proper continuity to ground (voltage drop test) and verified you're getting voltage on the light blue (left) and dark blue (right) wires from the switch to the turn signals themselves once the switch is activated respectively?

    If the wiring has proper power and ground, your bulbs are the only thing left in the equation. This is the diagram I'm referencing:
    Fig61_1992_body_wiring.gif
     

    Street Build 106  3

    1990 Plymouth Laser N/T
    fwd · manual · 1G DSM

    229  8

    1987 Toyota Pickup/Hilux
    awd · manual · Misc Vehicles

    Street Build 743  7

    1997 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM

    Street Build 942  1

    1992 Eagle Talon TSi AWD
    manual · 1G DSM

    Street Build 2K  10

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  4. nismojones

    nismojones Proven Member

    46
    8
    Joined Jan 10, 2008
    Metro Detroit, Michigan
    Clock spring behind the steering wheel?
     
  5. BoostedTT91

    BoostedTT91 Proven Member

    268
    4
    Joined Aug 2, 2004
    Elysburg, Pennsylvania
    This is the diagram I have from the factory service manual. I don't have any power at the bulbs when the switch is activated but no I have not tested the grounds for the switch or relay.
    I feel dumb asking but what's the best way to go about testing the grounds. It's been along time since I've done any electrical diagnostics so I'm trying to dust of the cobwebs as I go.
     

    Attached Files:

  6. ThunderChild

    ThunderChild Supporting VIP

    2,430
    639
    Joined Jan 5, 2012
    Rathdrum, Idaho
    Just follow the diagram to the ground wires and test continuity to the negative battery terminal for starters. If you have continuity then you can proceed with voltage drop tests to see if there's a wire partially cut. Otherwise you need to see if you have 12v getting to the lights on the feed side from the switch.
     

    Street Build 106  3

    1990 Plymouth Laser N/T
    fwd · manual · 1G DSM

    229  8

    1987 Toyota Pickup/Hilux
    awd · manual · Misc Vehicles

    Street Build 743  7

    1997 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM

    Street Build 942  1

    1992 Eagle Talon TSi AWD
    manual · 1G DSM

    Street Build 2K  10

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  7. ist dwa

    ist dwa Proven Member

    240
    72
    Joined Nov 5, 2009
    Centerville, Ohio
    Are the bulbs LEDS? If not start tracing every single wire in the schematic, that is the only thing you can do, powers, grounds, check with a test light and for continuity.
     
  8. BoostedTT91

    BoostedTT91 Proven Member

    268
    4
    Joined Aug 2, 2004
    Elysburg, Pennsylvania
    At the 10a turn signal fuse I have 11.5 volts with the key on and once I activate the turn signal switch it drops to 1.5 volts
     
  9. BoostedTT91

    BoostedTT91 Proven Member

    268
    4
    Joined Aug 2, 2004
    Elysburg, Pennsylvania
    No leds
     

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