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:
Uniform Tire Quality Grading
This information has been prepared in accordance with regulations issued by the
National Highway Traffic Safety Administration of the U.S. Department of Transportation.
It provides the purchasers and/or prospective purchasers of Toyota vehicles with
information on uniform tire quality grading.
...
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 ...
Inspection procedure
Hint:
this dtc chart is on the premise that the engine is cranked normally.
If the engine is not cranked, proceed
to the problem symptoms table on page 05–42.
Read freeze frame data using the hand-held tester or the obd ii scan
tool. Freeze frame data records
the engine conditions ...


