Camry LE Sedan L4-2164cc 2.2L DOHC (5S-FE) MFI (2000)
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Brake Switch (Cruise Control): Testing and Inspection
CIRCUIT DESCRIPTION
When the brake pedal is depressed, the stop light switch sends a signal to the ECU. When the ECU receives this signal, it cancels the cruise control.
A fail-safe function is provided so that the cancel functions normally, even if there is a malfunction in the stop light signal circuit.
The cancel conditions are: Battery positive voltage at terminal STP-
When 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. 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 circuit is cut mechanically by the stop light switch, turning the cruise control OFF. (See DTC 12 for
operation of the magnetic clutch)
Wiring Diagram
