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CALIFORNIA Specification ECM Service Procedure (94-01-006)

Publication date: 1994-05-01
Reference number: 94-01-006

CALIFORNIA SPECIFICATION ECM SERVICE PROCEDURE

CALIFORNIA SPECIFICATION ECM SERVICE PROCEDURE

TECHNICAL SERVICE BULLETIN

Reference Number(s): 94-01-006, Date of Issue:  May, 1994

1993 - 94 CALIFORNIA SPECIFICATION SCOUPE ENGINE CONTROL MODULE SERVICE PROCEDURE

Model(s): 1993-94 Hyundai Scoupe

Group: Campaign

Bulletin No.: 94-01-006

Date: May, 1994

ILLUSTRATIONS

Fig 1: EPROM Retainer Location
G94G53252
Fig 2: EPROM Notch Matching Socket Notch
G94H53253
Fig 3: Eleventh Mark Identification
G94I53254
Fig 4: Remove the Retaining Pin
G94J53255
Fig 5: Pop Boards Apart
G94A53256
Fig 6: Pry Boards Apart
G94B53257
Fig 7: Remove EPROM
G94C53258
Fig 8: Install New EPROM
G94D53259
Fig 9: Plate Mark Location Eleven
G94G53260
Fig 10: Vehicle Emission Recall - Proof of Correction
G94H53261

SERVICE PROCEDURE

ECM EPROM Replacement

Some 1993 and 1994 California specification Scoupes may set a check engine light with no fault code stored. To correct this condition the EPROM must be replaced inside the Engine Control Module. Below are the instructions for replacing the EPROM in the Naturally Aspired and Turbocharged models.

Naturally Aspirated

  1. Disconnect the negative battery cable. Remove the Engine Control Module (ECM) from the vehicle following the instructions in the Shop Manual.
  2. With the bottom side up on the ECM, bend the ten tabs straight up to release the cover from the base and separate.
  3. Locate the EPROM. It is located under the removable white retainer. Remove the white retainer. Lift the EPROM from the socket straight up with equal pressure.
  4. Install the new EPROM carefully with the notch in the EPROM matching the notch in the socket. Use extreme caution not to bend the pins of the EPROM. Reinstall the white retainer.
  5. Place the cover over the base. Turn the ECM upside down and bend the ten tabs down to fasten the base to the cover.
  6. Install the ECM into the vehicle.
  7. Open the left door and place a punch mark over the 11th character on the B-Pillar identification plate. This will indicate that the campaign procedures have been completed. Proceed to Step 1 of the Modification Label and Proof of Correction Form instructions.

Turbocharged

  1. Disconnect the negative battery cable. Remove the Engine Control Module (ECM) from the vehicle following the instructions in the Shop Manual.
  2. With the bottom side up on the ECM, bend the ten tabs straight up to release the cover from the base and separate. Be sure to retain the plastic shield for reassembly.
  3. Use a pliers to remove the retaining pin, located on the bottom of the ECM.
  4. Grip the ECM from the back side and, using your thumb against the base, pop the two boards apart.
  5. Place a screwdriver under the upper board tabs as shown in Fig. Fig 6 . Pry up one side at a time until the upper board is removable from the connector. Pull the upper board rearward until the pins clear the connector and tilt the board up and back to remove the EPROM.
  6. Locate the EPROM. It is located under the removable white retainer on the bottom side of the upper board. Remove the white retainer. Lift the EPROM from the socket straight up with equal pressure.
  7. Install the new EPROM carefully with the notch in the EPROM matching the notch in the socket. Use extreme caution not to bend the pins of the EPROM. Reinstall the white retainer.
  8. Reposition the upper board into the connector and snap the tabs into place. Then place the plastic sheet over the top board and then the cover over the base. Turn the ECM upside down and bend the ten tabs down to fasten the base to the cover. Reinstall the retaining pin.
  9. Reinstall the ECM into the vehicle.
  10. Open the door and place a punch mark over the 11th character on the B-Pillar identification plate. This will indicate that the campaign procedures have been completed. Proceed to Step 1 of the Modification Label and Proof of Correction Form instruction Section of this TSB.

Modification Label and Proof of Correction Form Instructions

  1. An authorized Modification Label will need to be applied to the underside of the hood. Wipe the surface clean before applying the new label.
  2. On the Authorized Modification Label, you will need to write in the following information:
    • Change Authority: 018
    • Dealer Code: Your Dealer Code
    • Repair Date: The Date of the Repair

    Remove the backing from the clear adhesive on the front of the label and press down on the label.

  3. Fill out the California Vehicle Emission Recall - Proof of Correction Form.

1993 1994 Scoupe ECM Emission Campaign

California residents who own an affected vehicle may be required to send a Vehicle Emission Recall - Proof of Correction form to the California Department of Motor Vehicles (DMV) as evidence of recall completion when they apply for vehicle registration renewal. Each customer whose vehicle is registered within California must be given a completed Vehicle Emission Recall - Proof of Correction form after the recall has been completed. Packages of this form have been sent to California dealers along with this bulletin. Additional forms are available by contacting your Field Technical Managers (FTM).

NOTE: This form MUST be completed by the Dealership's Service Manager using a permanent ink pen. A fine point pen is recommended. When filling in the information, copy the information directly from the vehicle. Not the repair order.

Directions for Completing Proof of Correction Form

All Information must be printed and neat. Do not complete the form unless the recall work is completed!

  1. Enter the vehicle's license number.
  2. Enter "Hyundai"
  3. Enter the vehicle's model year "1993 or 1994"
  4. Enter "Scoupe"
  5. Enter the Vehicle Identification Number (VIN).
    NOTE: 1 digit per box, and the digits must be legible. (Use a fine point pen).
  6. Enter "018"
  7. Enter your dealership's name.
  8. Enter your dealership's physical address. (Not the mailing address.)
  9. Enter the date of repair.
  10. Sign the form.
Fig 11: PARTS INFORMATION TABLE
GB0049549
CAMPAIGN CLAIM INFORMATION

Model Model Year Operation Code Operation OP Time OP QTY
Scoupe 1993 - 1994 410012R0 ECM EPROM Replacement Naturally Aspirated 0.5 1
Scoupe 1993 - 1994 410012R1 ECM EPROM Replacement Turbocharged 0.6 1
Submit claims for the above campaign operation code using the campaign claim entry screen.
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