LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Audi >> 1994 >> 90 CS Quattro >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Self-Diagnostic System >> Clearing Codes >> Using Malfunction Indicator Light (MIL)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Using Malfunction Indicator Light (MIL)

  1. To erase trouble codes, turn ignition off. Connect Jumper Cable (357 971 514E) to Data Link Connectors (DLC). Black end of jumper cable attaches to Black DLC; White end of cable attaches to White DLC; Blue DLC is not used.
  2. Turn ignition on. Leave jumper cable attached for 5 seconds, until MIL begins to blink. Remove jumper cable. When light displays Code 4444 (no faults indicated), reconnect jumper cable to DLC or turn ignition off to end code clearing procedure. Trouble code memory is now erased.
NOTE: Codes cannot be erased until DTC memory has been read. Also, if ignition is turned off or engine speed exceeds 2500 RPM after DTC memory has been read, it will be necessary to read DTC memory again before codes can be cleared.
scientia non olet · About LEMON Manuals