hyundai Workshop Repair Guides

Hyundai Workshop Service and Repair Manuals

Main Relay (Computer/Fuel System) > < Scan Tool - Software Update Procedure|Page 1924
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Harness Inspection Procedure (Step 1)

Troubleshooting Procedures

TROUBLESHOOTING HINTS

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If the ground wire of the ECM is not connected securely to ground, the ECM will not operate correctly.

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If we replace ECM ROM without further diagnosis, the problem may reoccur.

Main Relay (Computer/Fuel System) > < Scan Tool - Software Update Procedure|Page 1924