Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Starter relay circuit high / Monitor description
Toyota Corolla (E120): 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 dtc is set.

Monitor strategy

Typical enabling conditions

Typical malfunction thresholds

Wiring diagram

Other materials:
Starting the engine
1 Continuously variable transmission: Ensure that the shift lever is in P and
depress the brake pedal.
Manual transmission: Shift the shift lever to N and depress the clutch pedal.
2 Touch the Toyota emblem side of the electronic key to the engine switch.
When the electronic key is detected, a ...
Wiring
Power source
Location
...
Diagnostic trouble code chart
Hint:
when the srs warning light remains lit up and the dtc is the normal
code, this means a voltage source
drops.
This malfunction is not stored in memory by the airbag sensor assy center
and if the power source
voltage returns to normal, the srs warning light will autom ...


