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Toyota Corolla Repair Manual: Srs warning light circuit malfunction (always light up, when dtc is not output)

Toyota Corolla Repair Manual / Diagnostics / Supplemental restraint system / Srs warning light circuit malfunction (always light up, when dtc is not output)

Inspection procedure
1 Prepare for inspection Disconnect the negative () terminal cable from the battery, and wait at least for 90 seconds.  remove the horn button assy .  disconnect the connector of ...

Circuit description
The srs warning light is located on the combination meter. When the srs is normal, the srs warning light lights up for approx. 6 Seconds after the ignition switch is turned from the lock positio ...

Other materials:

Shift lock system (atm)
Onvehicle inspection 1. Check shift lock operation  shift the shift lever to p position.  turn the ignition switch to lock.  check that the shift lever cannot be shifted to any other positions other than p.  turn the ignition switch to on, depress the brake pedal a ...

Circuit description
In the diagram below, when the engine is cranked, current flows from terminal st2 of the ignition switch to the starter relay coil and also current flows to terminal sta of the ecm (sta signal). When the sta signal and ne signal are input to the ecm, tr is turned on, current flows to the c ...

Dtc check/clear
1. Dtc check (normal mode) Notice: handheld tester only: when the diagnostic system is switched from the normal mode to the check mode, all the dtcs and freeze frame data recorded in the normal mode will be erased. So before switching modes, always check the dtcs and freeze frame data, and n ...

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