Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Supplemental restraint system / Short in side squib (lh) circuit (to
b+)
Toyota Corolla (E120): Short in side squib (lh) circuit (to b+)
Dtc b0118/46 short in side squib (lh) circuit (to b+)
Other materials:
Inspection procedure
1 Check voltage at ig2 of airbag sensor assy center
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connector of the airbag sensor assy center.
connect the negative (–) terminal cable to the battery,
and wa ...
Check open circuit
For the open circuit in the wire harness in fig. 1, Perform
a resistance check in step (b) or a voltage check in step
(c) to locate the section.
Check the resistance.
Disconnect connectors a and c and measure the
resistance between them.
Resistance: 1 Ω or les ...
Circuit description
The ecm compares the two waveforms of the heated oxygen sensors located
before and after the catalyst
to determine whether or not the catalyst performance has deteriorated.
Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen
sensor in front of the catalyst
alterna ...


