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Home >> Mitsubishi >> 1996 >> 3000GT Convertible V6-2972cc 3.0L DOHC Turbo 24 Valve >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Technical Service Bulletins >> All Technical Service Bulletins >> Recall - ECM Replacement >> Procedure

Procedure





Refer to the flow chart and the following steps to determine if the vehicle requires replacement of the ECM.





1. Make sure the ignition is in the OFF position, then connect the MUT-II scan tool to the data link connector. Turn the ignition switch ON. Confirm the MUT-II scan tool communicates properly. Turn the ignition switch OFF for 12 seconds, then proceed with Step 2.

2. Check the MIL ("Check Engine" light) with IGN ON and engine OFF. Does the MIL illuminate momentarily? If YES, proceed to Step 3. If NO, repair the condition. Check the MIL again and then continue.

3. Start engine. If the MIL illuminates with the engine running, refer to service manual section 13 to correct any existing DTC(s), then continue. If the MIL does not illuminate, go to Step 4.





4. With the MUT-II scan tool, check for MIL status ON (see note below). If MIL status is ON, and the "Check Engine" light is not illuminated, go to Step 5 (replace the ECM). If MIL status is OFF, the vehicle has the correct ECM and no further action is needed.

NOTE:

Location of MIL status using MUT-II:

a. Select MFI

b. Select DTC, and read MIL status.

5. Refer to the chart in the PARTS INFORMATION section of this bulletin and choose the correct ECM for the vehicle you are repairing.

THE FOLLOWING THREE STEPS ARE REQUIRED BY LAW.





6. Using a ball-point pen, enter the appropriate ECM part number, this Emissions Recall Bulletin number (EMR-02-OO1), your dealer code, and the current date on the "Control Module" Label (part no. MSSF-024G-00).

7. Place the "Control Module" label on the new ECM.





8. FOR VEHICLES REGISTERED IN CALIFORNIA ONLY - Complete and provide to the vehicle owner a VEHICLE EMISSION RECALL - PROOF OF CORRECTIONS FORM.

9. Refer to section 13 of the service manual for ECM location and procedures. Replace the ECM with the new, updated ECM.

10. After ECM replacement, engine idle may be unstable. To stabilize engine idle and ECM control conditions, start the engine and let it idle for 10 minutes under the conditions shown below:

^ Engine Coolant temperature: 85 - 95°C (185 - 203°F)

^ Lights and all accessories: OFF

^ Transmission/Transaxle: "N" or "P" position

^ Steering wheel: straight-forward position.

NOTE:

After ECM replacement, readiness codes must be re-established by completing the recommended OBD-II Drive Cycle TSB-00-13-005) before returning to the I/M station for testing.
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