RAM 3500 Truck 4WD L6-5.9L DSL Turbo VIN C (2002)
Engine Control Module: Service and Repair
Powertrain Control Module Replacement
REMOVAL
USE THE DRB SCAN TOOL TO REPROGRAM THE NEW POWERTRAIN CONTROL MODULE(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.
Fig. 18 PCM Location And Mounting
The PCM is located in the engine compartment.
To avoid possible voltage spike damage to the PCM, ignition key must be OFF and negative battery cable must be disconnected before unplugging
PCM connectors.
1. Disconnect negative battery cable(s) at battery(s).
2. Remove cover over electrical connectors. Cover snaps onto PCM.
3. Carefully unplug the three 32-way connectors from PCM.
4. Remove three PCM mounting bolts and remove PCM from vehicle.
INSTALLATION
USE THE DRB SCAN TOOL TO REPROGRAM THE NEW POWERTRAIN CONTROL MODULE (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. Install PCM and mounting bolts to vehicle.
2. Tighten bolts to 4 Nm (35 in. lbs.).
3. Check pin connectors in the PCM and the three 32-way connectors for corrosion or damage. Repair as necessary
4. Install three 32-way connectors.
5. Install cover over electrical connectors. Cover snaps onto PCM.
6. Install battery cable(s).
7. Use the DRB scan tool to reprogram new PCM with vehicles original Identification Number (VIN) and original vehicle mileage. If this step is not
done, a Diagnostic Trouble Code (DTC) may be set.
