Toyota Camry Manual page 1925

DI–898
Stop Light Switch Circuit
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 volt-
age 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 page
WIRING DIAGRAM
Stop Light Switch
2
3
W
Instrument Panel J/B
7
STOP
1C
FL BLOCK
1
ALT
F4
B–G
FL MAIN
Battery
DIAGNOSTICS
DI–883 for operation of the magnetic clutch)
Instrument Panel J/B
4
1
1R
G–W
4
G–B
J/C
4
A
1B
J7
B–R
W–B
Instrument Panel J/B
1
F9
8
1J
– CRUISE CONTROL SYSTEM
J27
J/C
5
A
1R
G–W
R–Y
Cruise Control
Actuator
A
4
J7
W–B
J11
J/C
7
A
1J
W–B
Author :
Cruise Control ECU
2
A
C15
G–W
STP–
8
C15
L
3
IG
Date :
DI08T–11
I00285
1133