Toyota Tacoma manuals

Toyota Corolla Repair Manual: Circuit description

When the ignition switch is turned on, battery positive voltage is applied to the coilwhich closes the contacts of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm.

This signal causes current to flow to the coil, closing the contacts of the efi relay and supplying power to terminal +b of the ecm.

If the ignition switch is turned off, the ecm continues to switch on the efi relay for a maximum of 2 seconds for the initial setting of the isc valve.

Wiring diagram

Inspection procedure

Ecm power source circuit
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Inspection procedure
1 Inspect ecm(+b voltage) Turn the ignition switch on.  measure the voltage between the terminals of the e4 and e6 ecm connectors. Standard: 2 Check harness and connector(ec ...

Other materials:

Manual air conditioning system∗
Air conditioning controls ► Heater ► Air conditioning system ■ Adjusting the temperature setting ► Heater To adjust the temperature setting, turn the dial clockwise to increase the temperature. ► Air conditioning system To adjust the temperature setting, tu ...

AUX port/USB port
Connect an iPod, USB memory device or portable audio player to the AUX port/USB port as indicated below. Press to select iPod, USB or AUX. Connecting using the AUX port/USB port ■ iPod Open the cover and connect an iPod using an iPod cable. Turn on the power of the iPod if it is ...

Optimal use of the multimedia system
On the Sound Settings screen, sound quality (Treble/Mid/ Bass), volume balance can be adjusted. How to adjust the sound settings and sound quality 1 2 3 Select - or + to adjust the treble, mid or bass to a level between -5 and 5. 4 5 Select Front or Rear to adjust the front/rear aud ...

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