Toyota Tacoma manuals

Toyota Corolla Repair Manual: Circuit description

The ignition switch provides circuit power and the ecm provides the circuit ground that illuminates the mil.

Mil operation is checked visually: it should be illuminated when the ignition is first turned on. If the mil is off all of the time or on all of the time, use the procedure below to troubleshoot it. The mil is used to indicate the ecms detection of a vehicle malfunction.

Follow this procedure using the handheld tester or an obd ii scan tool to determine the cause of the problem and to check the mil.

Wiring diagram

Inspection procedure

Mil circuit
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Inspection procedure
Hint: troubleshoot each trouble symptom in accordance with the chart below. 1 Clear dtc Connect the handheld tester or the obd ii scan tool to the dlc 3.  turn the ignition switch on ...

Other materials:

Inspection procedure
1 Inspect dlc3 terminal voltage(tc terminal) Turn the ignition switch to on.  measure voltage between terminals tc and cg of dlc3. Ok: voltage: 10 14 v 2 Check harness and connector(dlc3 body ground) Check for open and short circuit in harness and connector between ...

Selecting, fast-forwarding and reversing tracks/files/songs
■ Selecting a track/file/song Press the ∧ or ∨ button on SEEK/TRACK or turn the TUNE/ SCROLL knob to select the desired track/file/song number. To fast-forward or reverse, press and hold the ∧ or ∨ button on SEEK/TRACK. ■ Selecting a track/file/ ...

Inspection procedure
1 Check source voltage Measure the voltage of the battery. Ok: voltage: 10 14 v 2 Check air bag sensor assy center Disconnect the negative () terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors from the airbag sensor assy cent ...

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