Toyota Corolla (E120): Oxygen sensor circuit no activity detected

Inspection procedure

Circuit description

Other materials:

Inspection
1. Inspect sliding roof limit switch Inspect the sliding roof limit switch continuity. Standard: If the continuity is not as specified, replace the switch. 2. Inspect sliding roof drive gear sub–assy Connect the positive (+) lead from the battery to terminal 2 and the ne ...

Have the malfunction repaired immediately. (vehicles with a smart key system)
After taking the specified steps to correct the suspected problem, check that the warning message and light go off. ■Warning buzzer ...

Circuit description
The ignition switch provides circuit power and the ecm provides the circuit ground that illuminates the mil. Mil operation is checked visually: it should be illuminated when the ignition is first turned on. If the mil is off all of the time or on all of the time, use the procedure below to ...