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Temperature Gauge Testing

  1. Disconnect water temperature sensor connector. Water temperature sensor connector is located on top left rear side of engine.
  2. Using Gauge System Tester (Rotunda 021-00055), connect one lead of tester to Yellow/Green wire at connector and other lead to ground. Set gauge tester to specified resistance values.
  3. Turn ignition switch to ON position. Check if gauge indicator needle displays correct resistance values. See TEMPERATURE GAUGE RESISTANCE VALUES SPECIFICATIONS table. Continue test for 2 minutes on each setting to correctly judge gauge condition. Allowable reading is twice the width of gauge needle.
    TEMPERATURE GAUGE RESISTANCE VALUES SPECS

    Segments Resistance
    1-10 Less Than 17
    1-9 17-20
    1-8 20-26
    1-7 26-28
    1-6 28-33
    1-5 33-89
    1-4 89-120
    1-3 120-145
    1-2 145-177
    1 More Than 177
  4. If reading is within allowable range, go to TEMPERATURE SENSOR CHECK. If reading is not within allowable range, replace instrument panel assembly.
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