Toyota Corolla (E120): Inspection procedure

Hint

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  • if dtcs p0115, p0116, p0117, p0118 and p0125 are output simultaneously, the engine coolant temperature sensor circuit may be open or short. Perform the troubleshooting of dtc p0115, p0117 or p0118 first.
  • 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 air–fuel ratio was lean or rich, etc. At the time of the malfunction.

Replace engine coolant temperature sensor

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    Circuit description
    Refer to dtc p0115 Dtc no. Dtc detection condition Trouble area P0116 If engine coolant temperature (ect) was between 35 c (95 °F) and 60 c (140 °F) when starting the engine, and also conditions (a) and (b) are met:  vehicle has run with acceleration an ...

    Inspection procedure
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    Circuit description
    The airbag front rh sensor circuit consists of the airbag sensor assy center and airbag front rh sensor. Dtc b1156/b1157/15 is recorded when a malfunction is detected in the airbag front rh sensor circuit. Wiring diagram ...