Toyota Tacoma manuals

Toyota Corolla Repair Manual: Circuit description

In the diagram below, when the engine is cranked, current flows from terminal st2 of the ignition switch to the starter relay coil and also current flows to terminal sta of the ecm (sta signal).

When the sta signal and ne signal are input to the ecm, tr is turned on, current flows to the coil of the circuit opening relay, the relay switches on, power is supplied to the fuel pump and the fuel pump operates.

While the ne signal is generated (engine running), the ecm keeps tr on (circuit opening relay on) and the fuel pump also keeps operating.

Wiring diagram

Wiring diagram

Inspection procedure

Fuel pump control circuit
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Inspection procedure
Handheld tester: 1 Perform active test by handheld tester(operation of circuit opening relay) Connect the handheld tester to the dlc3.  turn the ignition switch on and push the handhe ...

Other materials:

Overhaul
1. Remove console panel upper 2. Remove console box carpet 3. Remove parking brake hole cover subassy 4. Remove console box subassy rear 5. Disconnect floor shift cable transmission control shift Remove the cable end from the rod of the floor shift assembly. Using a screw ...

Cruise control system
Onvehicle inspection 1. Check play of accelerator auto drive cable assy Push the wire into the cable so as not to move the throttle link and put a mark on the position shown in the illustration. Pull the wire and check the moved distance of the mark. 2. Adjust play in accele ...

Air conditioning controls
■ Adjusting the temperature setting To adjust the temperature setting, turn clockwise to increase the temperature and turn counterclockwise to decrease the temperature. ■ Fan speed setting Press > on to increase the fan speed. Press < on to decrease the fan spe ...

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