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

    Share this page:

    Other materials:

    Other functions
    ■ Switching between outside air and recirculated air modes Press . The mode switches between outside air mode (indicator off) and recirculated air mode (indicator on) each time is pressed. ■ Defogging the windshield Defoggers are used to defog the windshield and front side windows ...

    Circuit description
    The vehicle speed sensor circuit is sent to cruise control ecu assy as a vehicle speed signal. For each rotation of the shaft, the vehicle speed sensor sends a signal through the combination meter assembly to the cruise control ecu assy (see the following chart). The cruise control ecu assy ...

    Wiring
    Power source Location ...