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Home >> Ford >> 1996 >> Aerostar Van Window >> Repair and Diagnosis >> External Pages >> Different car >> Section 199 (Engine Controls - Tests W/Codes - 7.3L Diesel - EEC-IV) >> Self-Diagnostic System >> Clearing DTCS >> Powertrain Control Module

Powertrain Control Module

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Ensure test equipment is properly attached. Program scan tool using the following steps:

All DTCs should now be cleared from PCM memory. If problem has not been corrected or fault is still present, hard DTC will immediately be reset in PCM memory.

CAUTION: DO NOT disconnect vehicle battery to clear DTCs. This will erase operating information from Keep-Alive Memory (KAM). To clear KAM, disconnect negative battery terminal for at least Step 5 minutes.
CAUTION: When battery is disconnected, vehicle computer may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.