Toyota Tacoma manuals

Toyota Corolla Repair Manual: 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 airfuel ratio was lean or rich, etc. At the time of the malfunction.

1 Perform simulation test

  1. Clear the dtc
  2.  shuffle arrangement of the ignition coil and igniters.

    Notice

    : do not shuffle the connectors.

  3.  perform the simulation test.

Result:

2 Inspect ecm(igt1, igt2, igt3, igt4 and igf signal)

2 Inspect ecm(igt1, igt2, igt3, igt4 and igf signal)

  1. Inspection using the oscilloscope.
  2.  during cranking or idling, check the waveform between terminals igt1 to igt4 and e1, igf and e1 of the ecm connector.

Standard:

Hint:

Hint

: correct waveform is as shown in the diagram on the left.

3 Check harness and connector(ignition coil assy  ecm)

3 Check harness and connector(ignition coil assy ecm)

  1. Disconnect the i2, i3, i4 or i5 ignition coil and igniter connector.
  2.  disconnect the e3 ecm connector.
  3.  check the resistance between the wire harness side connectors.

Standard (check for open):

Standard (check for open):

Standard (check for open):

Standard (check for short):

Standard (check for short):

Standard (check for short):

Standard (check for short):

  1. Reconnect the ecm connector.
  2.  reconnect the ignition coil and igniter connector

4 Inspect ignition coil assy(power source)

4 Inspect ignition coil assy(power source)

  1. Disconnect the i2, i3, i4 or i5 ignition coil and igniter connector.
  2.  check the resistance between the wire harness side connectors.

Standard (check for open):

  1. Turn the ignition switch on position.
  2. measure the voltage between the terminal of the wire harness side connector and body ground.

Standard:

  1. Reconnect the ignition coil and igniter connector.

5 Check harness and connector(ignition coil assy  ignition switch)

5 Check harness and connector(ignition coil assy ignition switch)

  1. Disconnect the i2, i3, i4 or i5 ignition coil and igniter connector.
  2.  disconnect the i10 ignition switch connector.
  3.  check the resistance between the wire harness side connectors.

Standard (check for open):

Standard (check for short):

Standard (check for short):

  1. Reconnect the ignition coil and igniter connector.
  2.  reconnect the ignition switch connector.

Replace ignition coil assy

Replace ignition coil assy

Circuit description
Hint: these dtcs indicate a malfunction related to the primary circuit. If dtc p0351 is displayed, check the no.1 Ignition coil with igniter circuit. If dtc p0352 is displayed, check the no ...

Catalyst system efficiency below threshold
Dtc p0420 catalyst system efficiency below threshold (bank 1) ...

Other materials:

Transferring call histories
Select Transfer Histories using and press (YES). ■Phone number Up to 1000 names can be stored. ■Call history Up to 10 numbers can be stored in each of the outgoing, incoming and missed call history memories. ■Limitation of number of digits A phone number that exceeds ...

Vehicle lift and support locations
1. Notice about vehicle condition when jacking up As a rule, the vehicle must be unloaded when jacking up. Never jack up or lift up the vehicle loaded with things of heavy weight.  when removing any parts of heavy weight like the engine and transmission, the center of gravity of ...

Seat belt warning lamp for drivers seat does not operate
Wiring diagram Inspection procedure 1 Check combination meter assy Ground terminal c912 on the combination meter side. check that the warning lightlights up. Ok: warning light lights up. 2 Inspect front seat inner belt assy lh Disconnect the front seat inner belt as ...

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