LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2005 >> RX 330 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Computer Relearn Procedures - Import) >> ACURA >> System Readiness Test Codes >> HO2S Heater Monitor Code
April 5, 2026: LEMON Manuals is launched! Read the announcement.

HO2S Heater Monitor Code

WARNING: This page does not describe the selected car, but rather 164 other vehicles, including the 2002 Volvo V70, 2002 Volvo V40, 2002 Volvo S80, 2002 Volvo S60, and 2002 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Once test is started DO NOT turn ignition switch off. When negative battery cable is disconnected, all readiness codes are cleared.
  1. Connect scan tool to DLC.
  2. Start engine and let idle for 10 minutes.
  3. Readiness code should now be set. Use scan tool to check readiness code.
scientia non olet · About LEMON Manuals