Chrysler Full-Size Trucks 1989-1996 Repair Guide

Ignition Module

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REMOVAL & INSTALLATION



The engine controller is the computer/microprocessor that regulates all ignition functions. All other models (1989-96) employ a 60-way connector. The 1989 models (only) employ an additional 14-way connector. In most cases, the engine controller is mounted in the engine bay to the firewall or a fender. Some early models mount the engine controller in an air duct mounted on the inside left fender. Access to these units hidden in the air duct requires some dismantling of the air duct to get to them.


WARNING
Do not remove the grease from the 14-way connector or the connector terminal in the computer. The grease is used to prevent corrosion of the terminals. There should be at least a1/8in. (3.1mm) coating of grease on the bottom of the connector terminals. If not, apply a liberal coating of Mopar Multi-purpose grease No. 2932524, or equivalent, over the entire end of the connector plug.

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the air cleaner duct from the controller, if equipped.
  4.  
  5. Remove the three module retaining screws.
  6.  
  7. Remove the 14-way (1989 models) and 60-way connectors from the controller.
  8.  

To install:

Check the 14-way and 60-way connectors for damaged or bent pins (and correct if any are found) prior to plugging it in.

  1. Connect the 14-way (1989 models) and 60-way connectors to the controller.
  2.  
  3. Install and tighten the module retaining screws.
  4.  
  5. If applicable, install the air cleaner duct to the controller
  6.  
  7. Connect the negative battery cable.
  8.  

 
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