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TROUBLE DIAGNOSIS
EC-1509
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
*1: LHD models
*2: RHD models
102
PU*
1
W/R*
2
ASCD steering switch
[Ignition switch ON]
● ASCD steering switch: OFF
Approximately 4.3V
[Ignition switch ON]
● MAIN switch: Pressed
Approximately 0.3V
[Ignition switch ON]
● CANCEL switch: Pressed
Approximately 1.3V
[Ignition switch ON]
● RESUME/ACCELERATE switch: Pressed
Approximately 3.3V
[Ignition switch ON]
● SET/COAST switch: Pressed
Approximately 2.3V
103 B/OR
ASCD steering switch
ground
[Engine is running]
● Warm-up condition
● Idle speed
Approximately 0.3V
105 G ECM relay (self-shutoff)
[Ignition switch ON]
[Ignition switch OFF]
● For a few seconds after turning ignition
switch OFF
Approximately 1.2V
[Ignition switch OFF]
● More than a few seconds after turning igni-
tion switch OFF
BATTERY VOLTAGE
(11 - 14V)
107
108
W/R
W/R
Ignition switch [Ignition switch ON]
BATTERY VOLTAGE
(11 - 14V)
110 G/OR
Park/Neutral position
switch
[Ignition switch ON]
● Shift lever: Neutral
Approximately 0V
[Ignition switch ON]
● Shift lever: Except above
BATTERY VOLTAGE
(11 - 14V)
111 P/B
Power steering pressure
switch
[Engine is running]
● Steering wheel: Being turned
Approximately 0V
[Engine is running]
● Steering wheel: Not being turned
BATTERY VOLTAGE
(11 - 14V)
113 G ECM relay (self-shutoff)
[Ignition switch ON]
[Ignition switch OFF]
● For a few seconds after turning ignition
switch OFF
Approximately 1.2V
[Ignition switch OFF]
● More than a few seconds after turning igni-
tion switch OFF
BATTERY VOLTAGE
(11 - 14V)
114 B ECM ground
[Engine is running]
● Warm-up condition
● Idle speed
Approximately 0V
119
120
Y
R
Power supply for ECM [Ignition switch ON]
BATTERY VOLTAGE
(11 - 14V)
121 W/L
Power supply for ECM
(Back-up)
[Ignition switch OFF]
BATTERY VOLTAGE
(11 - 14V)
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION
DATA
(DC Voltage and Pulse Signal)
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