Cranking Holding Function Circuit

Cranking Holding Function Circuit

Wiring Diagram:

CIRCUIT DESCRIPTION

The system detects the IG switch's starting signal (STSW signal) and then supplies current to the starter until the ECM judges that the engine has started successfully. The purpose is to reduce the holding time of the ignition key.



INSPECTION PROCEDURE

Step 1 - 2:

Step 2 (Continued) - 4:

Step 5 - 6:

Step 7 - 10:

Step 10 (Continued):

Hand-held tester

Step 1 - 2:

Step 3 - 4:

Step 5 - 7:

Step 8 - 9:

OBD II scan tool (excluding hand-held tester)



CHECK FOR INTERMITTENT PROBLEMS

Hand-held tester only:
By putting the vehicle's ECM in the check mode, the 1 trip detection logic is possible instead of the 2 trip detection logic and the sensitivity to detect open circuits is increased. This makes it easier to detect intermittent problems.

1. Clear the DTCs.
2. Set the check mode.
3. Perform a simulation.
4. Check the connector and terminal.
5. Handle the connector.