Part #4886748

If the label on your original engine computer reads 4886748, this is the correct replacement PCM for your 1996 Dodge Ram Truck 8.0L Magnum V10. The module governs every aspect of powertrain operation — fuel injector pulse width, spark advance curves, idle air bypass, torque converter lockup, and OBD-II diagnostic monitoring.

Under the label, every 1996 Ram V10 PCM runs on the same 05014153AA(96MDL) circuit board. Chrysler located the module on the driver-side inner fender panel behind the battery tray — a position chosen to isolate the electronics from excessive underhood temperatures while keeping the harness run short to the engine sensors.

We strip the unit down to the bare PCB, inspect every solder joint and trace under magnification, replace any degraded components, and reassemble with fresh thermal compound and weatherseals. The rebuilt module is then bench-tested across simulated drive cycles and programmed to your specific VIN — calibration, immobilizer security, and the latest available software revision for this platform.

Replacing Part Number 4886748

Swap time is roughly 15 to 20 minutes. Start by disconnecting the battery. The PCM sits on the driver-side inner fender, behind the battery tray. Squeeze the locking tabs on each harness connector and pull them straight off, then unbolt the bracket. Mount the new module, reconnect both plugs, and reattach the battery. Since we flash the VIN, immobilizer codes, and calibration data before shipping, the truck starts immediately — no programming appointment needed.

Symptoms That Point to Part 4886748

Common diagnostic indicators that part number 4886748 needs replacement on the 1996 Dodge Ram V10 include:

• No-Bus Message on Instrument Cluster: The odometer area of the gauge cluster displays 'No Bus' instead of mileage, indicating the PCM has dropped off the vehicle's CCD data bus and is no longer communicating with the body and instrument modules.
• Intermittent Stalling at Operating Temperature: The engine runs normally when cold but begins cutting out after reaching full operating temperature, sometimes restarting after a cool-down period of 20 to 30 minutes.
• Crank / No-Start Condition: The starter motor cranks the engine at normal speed but the engine will not fire due to loss of fuel injector pulse or ignition coil trigger signal from the PCM.
• OBD-II Scanner No-Communication: A handheld scan tool or shop diagnostic computer reports no communication when connected to the 16-pin data link connector under the dash, indicating the PCM is not responding on the J1850 data bus.

When Calibration 4886748 Was Issued

Part number 4886748 dates to a specific point in the 1996 Ram 8.0L V10 production calendar. The 488674x stamps are the mid-production run. Chrysler issued this series once 1996 Ram 8.0L V10 assembly was established, after 4849358, 4849359, the 4850xxx revisions, and the standalone 4853980 calibration. It is stamp 2 of 6 in the 488674 group, between 4886747 and 4886749.

Alternate Part Number Formats for 4886748

Dealer and interchange listings often rewrite 4886748 as 04886748 or P04886748. Aftermarket catalogs may show P4886748. The calibration does not change. Only the printed form does.

Salvage Interchange Numbers for 4886748

Hollander lists 4886748 under interchange numbers 590-04172 and 590-04173. Both numbers identify the 1996 Dodge Ram 8.0L V10 PCM. The Hollander entry covers the hardware. The calibration stamped on the case still has to be 4886748.

OBD-II Codes When 4886748 Fails

4886748 is stamp 2 of 6 in the 488674 group. Shops working on this 488674 calibration most often find the following OBD-II codes already stored:

• P0720 — Output Speed Sensor Circuit: P0720 sets when the module cannot read output shaft speed. On this calibration family it commonly accompanies a PCM that has lost its transmission-side inputs.
• P0340 — Camshaft Position Sensor Circuit: Shops see P0340 on these mid-year stamps when the PCM quits processing the cam sensor input. A new sensor will not clear it if the module is the part that failed.

Emissions Certification for 4886748

This calibration meets Federal (50-state) emission standards for the 1996 model year. Part 4886748, stamp 2 of 6 in the 488674 group, was certified under that 1996 federal standard.

Letter Suffixes on 4886748

Chrysler used letter suffixes (AA, AB, AC, etc.) after the base number to indicate manufacturing date. All suffixes for 4886748 are functionally identical and interchangeable. The letters record when that individual module was built. 4886748AA and 4886748AB both order as 4886748.