Jeep Wagoneer/Commando/Cherokee 1984-1998

Electronic Control Unit (ECU)

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Removal & Installation



See Figure 1



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Fig. Fig. 1: Electronic Control Unit (ECU) mounting location

  1. Confirm that the ignition switch is OFF .
  2.  
  3. Fold the rear seat cushion forward for access to the ECU.
  4.  
  5. Remove the bracket holding the ECU from the floorpan, then remove the control unit from the bracket.
  6.  
  7. Carefully disengage the wiring connectors from the ECU.
  8.  

To install:
  1. Connect the wiring harnesses to the replacement unit.
  2.  
  3. Mount the control unit on the bracket, then install the bracket to the floorpan. Make certain the bracket is in the correct position.
  4.  
  5. Reposition the rear seat cushion.
  6.  

 
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