Toyota Corolla (E120): 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 air–fuel ratio was lean or rich, etc. At the time of the malfunction.

1 Check operation of speedometer

  1. Drive the vehicle and check if the operation of the speedometer in the combination meter is normal.

Hint

: the vehicle speed sensor is operating normally if the speedometer display is normal.

2 Inspect ecm(spd voltage)

2 Inspect ecm(spd voltage)

  1. Shift the lever to the neutral position.
  2.  jack up the vehicle.
  3.  turn the ignition switch on.
  4.  check the voltage between the terminals of the e4 and e5 ecm connectors as the wheel is turned slowly.

Standard:

Hint:

Hint

: the output voltage should fluctuate up and down similarly to the diagram on the left when the wheel is turned slowly.

Replace ecm

Replace ecm

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    Circuit description
    Shifting from 1st to o/d is performed in combination with on and off of the shift solenoid valve s1 and s2 controlled by ecm. If an open or short circuit occurs in either of the solenoid valves, the ecm controls the remaining normal solenoid valve to allow the vehicle to be operated smoothly ...

    Manual transaxle oil
    On–vehicle inspection 1. Inspect transaxle oil Stop the vehicle on the level place.  remove the transmission filler plug and gasket.  check that the oil surface is within 5 mm (0.20 In.) From the lowest position of the inner surface of the transmission filler plug openin ...

    Basic inspection
    Resistance measuring condition of electronic parts  unless stated, all resistance is measured at an ambient temperature of 20 c (68 °F). As the resistance may be outside the specifications if measured at high temperatures immediately after the vehicle has been running, measu ...