Toyota Corolla Repair Manual: System voltage

Inspection procedure

Hint: when the throttle position is slightly opened (the accelerator pedal is slightly depressed) because a floor carpet is overlapped on the accelerator pedal, or if not fully releasing t ...

Monitor description

The battery supplies electricity to the ecm even when the ignition switch is off. This electricity allows the ecm store data such as dtc history, freeze frame data, fuel trim values, and other da ...

Other materials:

Inspection procedure
Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...

Inspection procedure
1 Check voltage at ig2 of airbag sensor assy center Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connector of the airbag sensor assy center.  connect the negative (–) terminal cable to the battery, and wait a ...

Definition of terms
Term Definition Monitor description Description of what the ecm monitors and how it detects malfunctions (monitoring purpose and its details). Related dtcs Diagnostic code Typical enabling condition Preconditions that allow the ecm to detect ...