Toyota Corolla (E120): Idle signal circuit

Dtc 51 idle signal circuit

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Inspection
1. Inspect driver’s door lock Inspect the door lock motor operation. Standard: If the result is not as specified, replace the door lock assembly. Inspect the door lock and unlock switch continuity. Standard: If the result is not as specified, replace the door lock assem ...

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(ecm – body ground) Disconnect the e4 ecm connector. check the resistance between the wire ...

Oxygen sensor monitor (front and rear o2s system)
Preconditions The monitor will not run unless: mil is off  drive pattern  connect the obd ii scan tool to the dlc3 to check monitor status and preconditions.  Start the engine and allow it to idle for 2 minutes or more.  Drive the vehicle at 25 mph ...