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Home >> Chevrolet >> 1986 >> Astro Van Passenger, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 2.5L TBI Tests W/Codes >> Clearing Trouble Codes
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Clearing Trouble Codes

Trouble codes are cleared by removing battery voltage from the ECM for at least 10 seconds. To do so, be sure ignition switch is "OFF" and remove battery positive terminal, or disconnect ECM harness from positive battery pigtail, or remove ECM fuse from fuse block.