LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 1990 >> 929 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Clearing Codes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Clearing Codes

  1. Disconnect negative battery cable. Depress brake pedal for at least 5 seconds. Reconnect battery cable.
  2. Ground test connector with jumper wire. Turn ignition on, but do not start engine for 6 seconds. Start engine and run at 2000 RPM for 2 minutes. Verify no codes are displayed.