Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Mil circuit / Circuit description
Toyota Corolla (E120): 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 troubleshoot it. The mil is used to indicate the ecm’s detection of a vehicle malfunction.
Follow this procedure using the hand–held tester or an obd ii scan tool to determine the cause of the problem and to check the mil.
Wiring diagram
Other materials:
Cruise control
Preparation
Sst
Recomended tools
Equipment
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Replacement
1. Remove clutch start switch assy
disconnect the clutch start switch assy connector.
remove the nut and clutch start switch assy from the clutch pedal
support.
2. Install clutch start switch assy
install the clutch start switch assy with the nut.
Torque: 15.68 Nv ...
Circuit description
The side squib (lh) circuit consists of the airbag sensor assy center and
front seat airbag assy (lh).
It causes the srs to deploy when the srs deployment conditions are satisfied.
Dtc b0115/47 is recorded when a short is detected in the side squib (lh)
circuit.
Wiring diagram
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