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:
Inspection procedure
1 Check d squib circuit(airbag sensor assy center – horn button
assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connector between the airbag sensor
assy center and the horn button assy.
for the black ...
Ecm (1zz–fe)
Replacement
1. Disconnect battery negative terminal
2. Remove glove compartment door assy
3. Remove ecm
Remove the 2 clips using a clip remover. Then, open the
cover.
Disconnect the 4 ecm connectors.
remove the wire harness from the wire harness clamp.
Remove the 2 ...
Adjustment
1. Inspect and adjust clutch pedal sub–assy
Turn over the floor carpet.
check that the pedal height is correct.
Pedal height from asphalt sheet:
135.8 – 145.8 Mm (5.346 – 5.740 In.)
adjust the pedal height.
Loosen the lock nut and turn the stopper bolt until
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