Toyota ZZT230 series Repair Manual page 341

Dl-130
DTC P1 520
CIRCUIT DESCRIPTION
This signal is used to detect when the brakes have been applied. The STP signal voltage is the same as
the voltage supplied to the stop lights.
The STP signal is used mainly to control the fuel cut-off engine speed. (The fuel cut-off engine speed is
reduced slightly when the vehicle is braking.)
DTCNo.
The stop light switch does not turn oft even once the vehicle is • Short in stop light switch signal circuit
P1520 driven
(2
WIRING DIAGRAM
sa
Stop Light Switch
2
2 .6
1
8-R
Battery
FL MAJN
c
Stop Light Switch Signal Malfunction
(Only for AfT)
DTC Detecting Condition
A
G-W
3
BAt
8-R
G-W
W-8
2 BA1
A W-8
. J
. .
ENGINE
• Stop light switch
•ECM
J/C
A
G-W
��0h �
�
op U g ht
Mounted
LH
5
Stop Light
W -8
Jt4
JIG
Trouble Area
ECM
STP
RH
5
W-8
007927