Ford Workshop Manuals
E 150 V8-4.6L SOHC VIN W (2004)
Powertrain Management > Computers and Control Systems > Engine Control Module > Component Information > Service and Repair > Powertrain Control Module (PCM) > Page 4085
Engine Control Module: Service and Repair
Powertrain Control Module (PCM) Reset
POWERTRAIN CONTROL MODULE (PCM) RESET
All OBD II scan tools support the powertrain control module (PCM) reset.
The PCM Reset allows the scan tool to command the PCM to clear all emission-related diagnostic information. When resetting the PCM, a DTC
The following events occur when a PCM reset is performed:
Clears the number of Diagnostic Trouble Codes (DTCs).
Clears the DTCs.
Clears the freeze frame data.
Clears diagnostic monitoring test results.
Resets status of the OBD II system monitors.
Sets DTC P1000.
Resetting Keep Alive Memory (KAM)
Resetting Keep Alive Memory will return PCM memory to its default setting. Adaptive learning contents such as idle speed, refueling event, and fuel
After Keep Alive Memory has been reset, the vehicle may exhibit certain driveability concerns. It will be necessary to drive the vehicle to allow the
This function may not be supported by all scan tools. Refer to scan tool manufacturer's instruction manual.
If an error message is received or the scan tool does not support this function, disconnecting the battery ground cable for a minimum of 5 minutes may
Flash Electrically Eraseable Programmable Read Only Memory
FLASH ELECTRICALLY ERASEABLE PROGRAMMABLE READ ONLY MEMORY - FLASH EEPROM
Flash Electrically Eraseable Programmable Read Only Memory (EEPROM) is contained in an Integrated Circuit (IC) internal to the PCM. The
As part of the calibration there is an area referred to as the Vehicle Identification (VID) block. The VID block must be programmed when replacing
When changing items in the VID block, the strategy will place range limits on certain items such as tire and axle ratio. The VID block is also limited
Each of the procedures described below use the Worldwide Diagnostic System (WDS). Reprogramming can be performed by a local Ford dealer for
Programming the VID Block for a Replacement PCM
A new PCM will contain the latest strategy and calibration level for a particular vehicle. However, the VID block will be blank and will need
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