Ranger 2WD V6-182 3.0L (1995)
Powertrain Control Module: Reset Procedure
Without Scan Tool
Disconnect the negative lead from the battery for a minimum of 5 minutes (this will also result in the PCM Reset). Resetting Keep Alive Memory
(KAM) will clear learned values the PCM has stored for adaptive systems such as Idle and Fuel. Once the vehicle is driven, the PCM will relearn new
adaptive values. It will take a few miles and the vehicle may run rough until the values are relearned.
Using Generic Scan Tool
DESCRIPTION
The Powertrain Control Module (PCM) Reset allows the scan tool to command the PCM to clear all emission-related diagnostic information. When
resetting the PCM, a DTC P1000 will be stored in the PCM until all the OBD II system monitors or components have been tested to satisfy a Trip
without any other faults occurring.
For more information about a Trip, refer to Trips and Drive Cycles. See: Description and Operation/Trips and Drive Cycles
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 Oxygen Sensor Test data.
-
Resets status of the OBD II system monitors.
-
Sets DTC P1000.
PCM Reset Procedure
These are general instructions to reset PCM. Refer to the manufacturer's manual for specific instructions.
-
Turn key Off.
-
Perform the necessary vehicle preparation and visual inspection.
-
Connect scan tool to DLC.
-
Turn ignition key to the On position or START vehicle (depending on the pinpoint/diagnostic manual instructions for the type of data
requested).
-
Verify tool is connected and communicating properly.
-
Perform reset.
-
When finished, turn ignition key to the Off position.
-
Disconnect scan tool from vehicle.
Using New Generation STAR (NGS) Tester
DESCRIPTION
The Powertrain Control Module (PCM) Reset allows the scan tool to command the PCM to clear all emission-related diagnostic information. When
resetting the PCM, a DTC P1000 will be stored in the PCM until all the OBD II system monitors or components have been tested to satisfy a Trip
without any other faults occurring.
For more information about a Trip, refer to Trips and Drive Cycles. See: Description and Operation/Trips and Drive Cycles
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.
