Jeep CJ/Scrambler 1971-1986 Repair Guide

Instrument Cluster

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On these vehicles the instrument cluster is actually the speedometer/gauge assembly that is located in the center of the instrument panel. Most vehicles covered by this guide are equipped with 9 volt gauges which require the use of an in-line 3 volt resistor (mounted under the dash, on or near the cluster). The resistor (or resistors depending on the model) should be suspect in the event of improper gauge operation.

REMOVAL & INSTALLATION

See Figure 1

1971-75
  1. Disconnect the negative battery cable.
  2.  
  3. Separate the speedometer cable from the speedometer head.
  4.  
  5. Remove the screws that hold up the heater control bracket (1972 and later only).
  6.  
  7. Remove the attaching nuts that hold the cluster to the dash.
  8.  
  9. Remove the gauge wires and remove the cluster assembly.
  10.  
  11. Install in the reverse order. After installing the cluster, connect the battery and check all of the lights and gauges for proper operation.
  12.  

1976-86


Click image to see an enlarged view

Fig. Fig. 1: This is the instrument panel as seen on most every Jeep CJ or Scrambler

  1. Disconnect the negative battery cable.
  2.  
  3. Disconnect the speedometer cable from the back of the speedometer.
  4.  
  5. Remove the instrument cluster attaching nuts and remove the cluster.
  6.  
  7. Disconnect the instrument cluster electrical connectors and remove the cluster from the vehicle.
  8.  
  9. Install the cluster in position and install the retaining nuts. Connect the speedometer cable and electrical connectors.
  10.  

 
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