Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Supplemental restraint system / Short in p squib circuit (to b+) / Circuit description
Toyota Corolla (E120): Circuit description
The p squib 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 b0108/52 is recorded when a b+ short is detected in the p squib circuit.

Wiring diagram
Other materials:
How to proceed with troubleshooting
1 Vehicle brought in
2 Customer problem analysis check and symptom check
3 Problem symptoms table
Without applicable symptoms, proceed to ”a”
with applicable symptoms, proceed to ”b”
4 Perform troubleshooting in the following method, depending on
malfunction symptom ...
Vehicle lift and support locations
1. Notice about vehicle condition when jacking up
As a rule, the vehicle must be unloaded when jacking up. Never jack up
or lift up the vehicle loaded
with things of heavy weight.
when removing any parts of heavy weight like the engine and
transmission, the center of gravity of
...
Check mode procedure
Hint:
hand–held tester only:
compared to the normal mode, the check mode has more sensing
ability to detect malfunctions. Furthermore, the same diagnostic
items which are detected in the normal mode can also be
detected in the check mode.
1. Check mode procedure(using the hand–held tester) ...


