Stop Light Switch Circuit
CIRCUIT DESCRIPTIONWhen the brake is ON, battery positive voltage normally is applied through the STOP fuse and stop light switch to terminal STP- of the ECU, and the ECU turns the cruise control OFF.
A fail-safe function is provided so that cancel functions normally, even if there is a malfunction in the stop light signal circuit.
If the harness connected to terminal STP- has an open circuit, terminal STP- will have battery positive voltage and the cruise control will be turned OFF.
Also, when the brake is ON, the magnetic clutch is cut mechanically by the stop light switch, turning the cruise control OFF.
WIRING DIAGRAM
Step 1:
Step 2:
Step 3:
Step 4:
INSPECTION PROCEDURE