Toyota Corolla (E120): Source voltage drop

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Circuit description
The crankshaft position sensor (ne signal) consists of a magnet, iron core and pickup coil. The ne signal plate (crankshaft position sensor plate) has 34 teeth and is installed on the crankshaft. The ne signal sensor generates 34 signals for each engine revolution. This sensor monitors a p ...

Inspection procedure
1 Inspect skid control ecu connector(+bs terminal voltage) Disconnect the skid control ecu connector.  measure the voltage between terminals +bs (2) and gnd (1, 23) of skid control ecu harness side connector. Voltage: 10 – 14 v 2 Reconfirm dtc Check the dtc . Ok : ...

Monitor description
While the engine is being cranked, the battery positive voltage is applied to terminal sta of the ecm. If the ecm detects the starter control signal (sta) while the vehicle is driving, it will conclude that there is a fault in the starter control circuit. The ecm will turn on the mil and a d ...