Part #4886930

Part number 4886930 is the OEM engine computer for the 1996 Ram Truck 8.0L Magnum V10, Chrysler's first year of OBD-II compliance on this platform. The PCM handles real-time closed-loop fuel control, misfire detection across all ten cylinders, evaporative emission system monitoring, and adaptive transmission line pressure management.

Hardware code 05014153AA(96MDL) is printed on the module's circuit board and is common to every 1996 Ram 8.0L V10 PCM regardless of calibration stamp. The unit attaches to the driver-side inner fender behind the battery tray via two or three mounting bolts, with the wiring harness connecting through two large multi-pin Mopar weatherpack plugs.

Before shipping, every module goes through a multi-stage remanufacturing process: board-level inspection under magnification, replacement of known failure-prone components (power transistors, capacitors, voltage regulators), full functional bench testing, and custom VIN programming with your truck's exact 17-digit identification number.

Replacing Part Number 4886930

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 4886930

If the original 4886930 module is going bad in your 1996 Ram 8.0L V10, expect some combination of the following:

• Dead Pedal / Sudden Throttle Loss: The throttle response drops to zero while driving, the engine falls to idle, and the truck limps at low speed until the ignition is cycled off and back on.
• 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.

When Calibration 4886930 Was Issued

The stamp 4886930 identifies when in the 1996 model year this PCM calibration was released. The 488693x stamps are the final seven-digit production run for this PCM. Chrysler later supplied Mopar remanufactured service parts from this same calibration, marked with an R prefix: R4886930, R4886932, and R4886933. It is the first of 5 stamps in the 488693 group. The other numbers are 4886931, 4886932, 4886933, 4886934.

Alternate Part Number Formats for 4886930

Dealer and interchange listings often rewrite 4886930 as 04886930 or P04886930. Aftermarket catalogs may show P4886930. The calibration does not change. Only the printed form does.

Salvage Interchange Numbers for 4886930

The Hollander cross-reference for part 4886930 is 590-04172 and 590-04173. Recyclers use those two numbers to catalog this V10 powertrain module. Confirm the label reads 4886930 before treating a yard unit as this calibration.

OBD-II Codes When 4886930 Fails

4886930 is stamp 1 of 5 in the 488693 group. Shops working on this 488693 calibration most often find the following OBD-II codes already stored:

• P0562 — System Voltage Low: The PCM stores a low system-voltage code. After charging voltage at the battery checks out, the usual cause on these later stamps is the module's internal power supply.
• P0688 — Auto Shutdown Relay Control Circuit: The auto-shutdown relay control circuit is flagged. The engine can crank with no injector pulse or spark if the PCM can no longer operate the ASD relay.

Emissions Certification for 4886930

This calibration meets Federal (50-state) emission standards for the 1996 model year. Part 4886930, stamp 1 of 5 in the 488693 group, was certified under that 1996 federal standard.

Manufacturing Date Suffixes after 4886930

Chrysler used letter suffixes (AA, AB, AC, etc.) after the base number to indicate manufacturing date. All suffixes for 4886930 are functionally identical and interchangeable. The letters record when that individual module was built. 4886930AA and 4886930AB both order as 4886930.