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dash cluster pinout????

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Tkeduc8r, Nov 27, 2002.

  1. Tkeduc8r

    Tkeduc8r Registered Member

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    im starting to switch my 74 c10 idiot light cluster over to a 79 guage cluster w/o tach... Can anyone out there help with the pinouts on the back of the two clusters... both the temp and oil press gauges have three prongs on the back, one for power, one ground and one sender, BUT which is which???? I would hate to connect it to my regulated power supply and burn a gauge out unnecessarilly... this is the pinout that i have so far (just by tracing the circuit sheet ont he back..... I did somehting similar with my 84 cutlass from idiots to rallye cluster and it worked out pretty slick....

    Idiot Light Cluster '74:
    9: Gas Sender 10: High Beam Indicator (12+)
    8: blank 11: Cluster Lights (12+)
    7: blank 12: Oil Indicator (12+)
    6: blank 13: Teperature Indicator (12+)
    5: blank 14: Ground
    4: blank 15: Generator (+)
    3: ground 16: Generator (-)
    2: R turn signal 17: Brake Indicator (12+)
    1: L turn signal 18: ground

    Gauge Cluster w/o tach '79
    9: Gas Sender 10: High Beam Indicator (12+)
    8: Brake Indicator (12+) 11: Cluster Lights (12+)
    7: ground 12: Volt gauge (ground)
    6: Choke Indicator (12+) 13: Volt gauge (12+)
    5: 4WD Indicator (12+) 14: Oil Gauge sender
    4: Seat Belt Indicator (12+) 15: 12+ to Coolent temp and Oil
    3: R turn Indicator (12+) 16: blank
    2: L turn Indicator (12+) 17: blank
    1: ground 18: Coolant Temp sender

    Like i said, im just curious about the 12v and ground connections on the gauges... and please douible check my findings....

    OH!!!! and what is the color break down of the wires for the 74 leading to the male end of the plug in to the cluster???? My service manual and Haynes are not clear on the breakdown....

    Thanks guys,
    --Mike
     
  2. Tkeduc8r

    Tkeduc8r Registered Member

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