Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Supplemental restraint system / Open in p squib (2nd step) circuit / Circuit description
Toyota Corolla (E120): Circuit description
The p squib (2nd step) circuit consists of the airbag sensor assy center and instrument panel passenger airbag assy.
It causes the srs to deploy when the srs deployment conditions are satisfied.
Dtc b1186/58 is recorded when an open is detected in the p squib circuit.
Wiring diagram
Other materials:
Symptom simulation
Hint:
the most difficult case in troubleshooting is when no symptoms occurs. In such
cases, a thorough customer
problem analysis must be carried out. Then the same or similar conditions and
environment in which the
problem occurred in the customer’s vehicle should be simulated. No matter ho ...
On–vehicle inspection
1. Horn button assy (vehicles not involved in
collision)
Check the diagnostic system .
visually check the following item with the horn button assy
(with airbag) installed in the vehicle.
Check cuts, minute cracks or marked discoloration on the
horn button assy top surface and in the ...
Problem symptoms table
Hint:
if a normal code is displayed during the dtc check but the trouble still occurs,
check the circuits for each
symptom in the order given in the charts on the following pages and proceed to
the page given for troubleshooting.
The matrix chart is divided into 3 chapters.
If the instruc ...