Toyota Tacoma manuals

Toyota Corolla Repair Manual: Circuit description

The p/t squib circuit (lh) 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 b0136/74 is recorded when an open is detected in the p/t squib (lh) circuit

Wiring diagram

Wiring diagram

Open in p/t squib (lh) circuit
Dtc b0136/74 open in p/t squib (lh) circuit ...

Inspection procedure
1 Check p/t squib(lh) circuit(airbag sensor assy center front seat outer belt assy lh) Disconnect the negative () terminal cable from the battery, and wait at least for 90 seconds. &nb ...

Other materials:

Terminals of ecu
1. Inspect integration relay Disconnect the connector from the integration relay. check the continuity between each terminal of the disconnected connector and the body ground, as shown in the illustration and table. Standard: If the result is not as specified, the vehicles si ...

Inspection procedure
Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...

Inspection procedure
1 Check fuse(ecuig) Remove the ecuig fuse from the instrument panel j/b.  check the continuity of the ecuig fuse. Ok: continuity 2 Inspect terminal voltage(b) Remove the cruise control ecu assy with connector still connected.  turn the ignition switch to on. ...

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