Dakota 4WD V8-4.7L Flex Fuel (2008)
Engine Control Module: Service and Repair
Powertrain Control Module - Installation
INSTALLATION
CAUTION: Certain ABS systems rely on having the Powertrain Control Module (PCM) broadcast the Vehicle Identification Number (VIN)
over the bus network. To prevent problems of DTCs and other items related to the VIN broadcast, it is recommend that you disconnect the
ABS CAB (controller) temporarily when replacing the PCM. Once the PCM is replaced, write the VIN to the PCM using a diagnostic scan tool.
This is done from the engine main menu. Arrow over to the second page to "1. Miscellaneous". Select "Check VIN" from the choices. Make
sure it has the correct VIN entered before continuing. When the VIN is complete, turn off the ignition key and reconnect the ABS module
connector. This will prevent the setting of DTCs and other items associated with the lack of a VIN detected when you turn the key ON after
replacing the PCM.
CAUTION: Use a diagnostic scan tool to reprogram the new PCM with the vehicles original identification number (VIN) and the vehicles
original mileage. If this step is not done, a Diagnostic Trouble Code (DTC) may be set.
1. Position PCM (3) to vehicle.
2. Install three PCM mounting bolts (2).
3. Tighten bolts to 3-5 Nm (30-40 in. lbs.).
4. Be sure ground strap (4) is secured both at bottom of PCM, and at inner-fender.
5. Check pin connectors in the PCM. Also check the four 38-way connectors (2) for corrosion or damage. Repair as necessary.
