Part #4886797

The 1996 Dodge Ram 8.0L V10 uses one module — stamped 4886797 — to run both the engine and the automatic transmission. This PCM processes signals from the MAP sensor, throttle position sensor, crankshaft and camshaft position sensors, oxygen sensors, and vehicle speed sensor to maintain proper air-fuel ratio, ignition timing, and shift scheduling.

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.

Installing Part 4886797

Installation takes about 20 minutes with basic hand tools. Disconnect the negative battery cable, locate the existing module on the driver-side inner fender behind the battery tray, unplug the two wiring harness connectors, and remove the mounting bolts. Reverse the process with the replacement unit. Because the PCM arrives pre-programmed to your VIN, there is no dealer visit, no locksmith, and no scan tool reflash required — turn the key and drive.

Symptoms That Point to Part 4886797

Common diagnostic indicators that part number 4886797 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.

Production Timing for 4886797

Calibration 4886797 was not used for the entire model year. Chrysler assigned it to one stretch of 1996 production. The 488679x stamps are mid-to-late production. They followed the 488674x mid-year run and were in service before the late-production 488686x calibrations. It is stamp 4 of 5 in the 488679 group, between 4886796 and 4886798.

Other Ways 4886797 Is Written

4886797 also appears as P04886797, 04886797, and P4886797. These are the same number. Different sources print them differently: a P catalog prefix, a leading zero that fills the eight-digit parts field, or both.

Hollander Cross-Reference for 4886797

Salvage-yard lookups for 4886797 use Hollander 590-04172 / 590-04173. The 488679 family is filed under that same pair, along with every other 1996 Ram V10 PCM calibration on this hardware. Match the stamp, not only the Hollander number.

Fault Codes Tied to 4886797

On this calibration 4886797 (stamp 4 of 5 in the 488679 group), the codes below are the ones commonly stored when the module itself has failed. They are the pattern for the 488679 family, which is the mid-to-late production group.

• 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 4886797

This calibration meets Federal (50-state) emission standards for the 1996 model year. That is the certification on stamp 4886797, from the mid-to-late production group.

AA, AB, and AC Suffixes for 4886797

Chrysler used letter suffixes (AA, AB, AC, etc.) after the base number to indicate manufacturing date. All suffixes for 4886797 are functionally identical and interchangeable. A label stamped 4886797AA, 4886797AB, or 4886797AC is this same calibration.