EEC IV - MIL ON/False Code 41 Set

89ford35

^ EEC IV QUICK TEST - 3.0L - FALSE SERVICE CODE "41" STORED IN KEEP ALIVE MEMORY (KAM) - VEHICLES BUILT BETWEEN 10/31/88 AND 5/01/89

^ LAMP - "CHECK ENGINE" MALFUNCTION INDICATOR LIGHT (MIL) - 3.0L ENGINES - INTERMITTENT OPERATION - VEHICLES BUILT BETWEEN 10/31/88 AND 5/01/89
Article No. 89-23-9
LIGHT TRUCK: 1989 AEROSTAR


CALIBRATION: 9-55J-R10, 9-56J-R10

WARNING: THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE. PERFORMING THIS MODIFICATION ON OTHER ENGINE CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.

ISSUE: A "CHECK ENGINE" Malfunction Indicator Light (MIL) may turn on and off because of a false service code "41" stored in the continuous Self Test memory. The code "41" is set in the Keep Alive Memory (KAM) during the first 30-50 miles of engine operation due to Self Test calibration parameters. When the false code "41" is cleared from KAM, the code will not reappear.
ACTION: Perform normal EEC IV system diagnostics to determine if a sensor has failed. If no evidence of a failure is found, clear the code "41" from the continuous Self Test memory.

NOTE: DO NOT DISCONNECT THE BATTERY POWER OR UNPLUG THE 60 PIN CONNECTOR.

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 2300, 2500