FixVault
Home
›
Lexus
›
1994
›
SC 300 Standard
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls - Tests W/Codes - Except OBD-II
›
Diagnostic Code Charts
›
Code 21 - Main O2 Sensor CKT (Front Sensor)
Code 21 - Main O2 Sensor CKT (Front Sensor)
Fig 1: Code 21 Flow Chart (SC300) Main O2 Sensor Circuit
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Code 21 Trouble Code Detection Test (SC300) Main O2 Sensor Circuit
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002