Toyota Tacoma manuals

Toyota Corolla Repair Manual: Electronic control

  1. Removal and installation of battery terminal

  1.  before performing electrical work, disconnect the battery negative () terminal cable beforehand so as to prevent burntout damage by short.
  2.  When disconnecting and installing the terminal cable, turn the ignition switch and lighting switch off, and loosen the terminal nut completely. Perform these operations without twisting or prying the terminal.
  3.  When the battery terminal is removed, all the memories of the clock, radio, dtcs, etc. Will be erased.

    So before removing it, check them and note them down.

  1. Handling of electronic parts

  1.  do not open the cover or case of the ecu unless absolutely necessary (if the ic terminals are touched, the ic may be destroyed by static electricity).
  2.  To disconnect electronic connectors, pull the connector itself, not the wires.
  3.  Be careful not to drop electronic components, such as sensors or relays. If they are dropped on a hard floor, they should be replaced and not be reused.
  4.  When cleaning the engine with steam, protect the electronic components, air filter and emissionrelated components from water.
  5.  Never use an impact wrench to remove or install temperature switches or temperature sensors.
  6.  When checking the continuity at the wire connector, insert the tester probe carefully to prevent terminals from bending.

Removal and installation of fuel control parts

For vehicles equipped with srs airbag and seat belt pretensioner
Hint: the vehicle is equipped with an srs (supplemental restraint system), such as the horn button assembly, the instrument panel passenger airbag assembly, the front seat airbag assembly, the c ...

Removal and installation of fuel control parts
Place for removing and installing of fuel system parts  work in a place with good air ventilation and without anything flammable such as welder, grinder, drill, electric motor or st ...

Other materials:

Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or when an airbag inflates upon collision, the fuel pump shut off system stops the supply of fuel to the engine. Follow the procedure below to restart the engine after the system is activated. ► Vehicles without a smart key syst ...

Onvehicle inspection
1. Inspect brake booster Airtightness check.  Start the engine and stop it after 1 or 2 minutes. Depress the brake pedal several times slowly. Hint: if the pedal goes down farthest at the 1st time, but gradually rises after the 2nd or 3rd time, the booster is airtight. ...

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 ...

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