Toyota Corolla (E120): Source voltage drop

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Evap monitor (vacuum pressure monitor) (continued)
Preconditions The monitor will not run unless: mil is off. Fuel level is approximately 1/2 to 3/4. Altitude is 7800 feet (2400 m) or less.* Engine coolant temperature (ect) is between 40°f and 95°f (4.4 °C and 35 °C). Intake air temperature (iat) is between 40°f and 95 ...

Inspection procedure
1 Check hazard warning signal switch assy Check the hazard warning switch continuity, as shown in the illustration and table. Standard: 2 Check turn signal flasher assy 3 Check wire harness (tvip ecu turn signal flasher) Disconnect the tvip ecu and turn signal flashe ...

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 ...