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A/T - Harsh Shifts/Trouble Code 62/TCIL Lamp Flashes

Article No.
94-2-26

01/26/94

TRANSMISSION - HARSH SHIFTS - DIAGNOSTIC TROUBLE CODE (DTC) 62 IN CONTINUOUS MEMORY - TRANSMISSION CONTROL INDICATOR LAMP (TCIL) FLASHING - VEHICLES BUILT BEFORE 1/3/94

LIGHT TRUCK:
1989-94 E-250, E-350, F SUPER DUTY, F-250, F-350, F-53

ISSUE:
Some vehicles may exhibit a flashing Transmission Control Indicator Lamp (TCIL) and harsh shifts with a Diagnostic Trouble Code (DTC) 62 in continuous memory. This condition may be caused by the Powertrain Control Module (PCM).





ACTION:
Verify proper transmission function by performing diagnostic procedures specified in the Powertrain Control/Emissions Diagnosis Service Manual for DTC 62. If the concern is still present, install a service replacement PCM. Refer to the PCM Usage Chart for correct application.





Parts Block

NOTE:
MAKE SURE TO PERFORM A PROPER DIAGNOSIS FOR CODE 62 AS OUTLINED IN THE PCED AND SERVICE MANUALS BEFORE CHANGING THE PCM. IF THE VEHICLE HAS THE UPDATED PCM AND EXHIBITS CODE 62 IN CONTINUOUS MEMORY, THERE IS A VEHICLE OR TRANSMISSION PROBLEM AND CODE 62 IS VALID. THE PINPOINT TEST LISTED IN THE PCED MANUAL AND SERVICE MANUAL MUST BE PERFORMED.





Obtain an Authorized Modifications Decal and list the date, dealer number, and summary of alterations performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.

OTHER APPLICABLE ARTICLES: 93-12-20
WARRANTY STATUS:
Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage For 1992/94 Models, Eligible Under Basic And Powertrain Warranty Coverage For 1989/91 Model Vehicles

OPERATION DESCRIPTION TIME
940226A Perform EEC Quick Test, 1.6 Hrs.
Perform Pinpoint Test TG90
As Specified, Replace
PCM, Perform Final Quick
Test (F-Series)
940226B Perform EEC Quick Test, 1.1 Hrs.
Perform Pinpoint Test TG90
As Specified, Replace
PCM, Perform Final Quick
Test (E-Series)

DEALER CODING
BASIC PART NO. CONDITION CODE
12B565 08

OASIS CODES: 206000, 501000