Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Supplemental restraint system / Short in p/t squib (lh) circuit (to b+) / Circuit descriptionCircuit description
Toyota Corolla (E120): Circuit descriptionCircuit description
The p/t squib (lh) circuit consists of the airbag sensor assy center and seat belt pretensioner (lh).
It causes the srs to deploy when the srs deployment conditions are satisfied.
Dtc b0138/72 is recorded when a b+ short is detected in the p/t squib (lh) circuit.

Wiring diagram
Other materials:
Manual transmission / transaxle
Service data
Torque specification
...
Inspection procedure
1 Check security indicator light
Set the system in 30 seconds after filliping the security indicator to
check if the alarm is triggered.
2 Check glass breakage sensor ecu (glass breakage sensor)
Check the continuity and voltage of the glass breakage
sensor ecu, as shown in th ...
Eco drive mode (if equipped)
Press the switch.
Suitable for enhancing the fuel economy, because the torque corresponding to
the accelerator pedal depression amount can be generated more smoothly than it is
in normal conditions and the operation of the air conditioning system (heating/cooling)
will be minimized.
Press th ...


