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 Check fuse(efi fuse)

  1. Remove the efi fuse from the engine room r/b.
  2.  check for continuity in the efi fuse.

    Standard: continuity

  3.  reinstall the efi fuse.

2 Inspect ecm(batt voltage)

2 Inspect ecm(batt voltage)

  1. Measure the voltage between the terminals of the e4 and e6 ecm connectors.

Standard:

3 Check harness and connector(ecm  efi fuse, efi fuse  battery)

3 Check harness and connector(ecm efi fuse, efi fuse battery)

  1. Check the harness and the connector between the efi fuse and ecm.
  1.  Remove the efi fuse from the engine room r/b.
  2.  Disconnect the e6 ecm 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 ecm connector.
  2.  Reinstall the efi fuse.
  1.  check the harness and the connector between the efi fuse and battery.
  1.  Remove the efi fuse from the engine room r/b.
  2.  Disconnect the battery positive terminal.
  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 battery positive terminal.
  2.  Reinstall the efi fuse.

Check and replace engine room relay block assy

Check and replace engine room relay block assy

Monitor description
The battery supplies electricity to the ecm even when the ignition switch is off. This electricity allows the ecm store data such as dtc history, freeze frame data, fuel trim values, and other da ...

Ecm/pcm processor
Dtc p0606 ecm/pcm processor Monitor description The ecm continuously monitors its internal circuits. This selfcheck insures that the ecm is functioning properly. If a malfunction is detected, ...

Other materials:

Supplemental restraint system
Preparation Sst Recomended tools Equipment ...

Inspection procedure
1 Check side squib(rh) circuit(airbag sensor assy center front seat airbag assy rh) Disconnect the negative () terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the airbag sensor assy center and the front seat airbag assy (rh ...

How to proceed with troubleshooting
1 Vehicle brought to workshop 2 Customer problem analysis 3 Check and clear dtcs and freeze frame data 4 Problem symptom confirmation Symptom does not occur: go to step 5 Symptom occurs: go to step 6 5 Symptom simulation 6 Dtc check There is no output: go to step 7 There is outp ...

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