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DTC P0234 TC SYSTEM
EC-1185
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Specification data are reference valves, and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may damage the
ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic Procedure BBS00204
1. CHECK VACUUM SOURCE
1. Turn ignition switch OFF.
2. Disconnect vacuum hose connected to turbocharger control actuator.
3. Start engine and let it idle.
4. Check vacuum hose for vacuum existence.
OK or NG
OK >> GO TO 8.
NG >> GO TO 2.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION
DATA
(DC Voltage and Pulse Signal)
6L
Turbocharger boost control
solenoid valve
[Ignition switch ON]
● Warm-up condition
● Idle speed
0 - 12.5V
[Ignition switch ON]
● Warm-up condition
● Engine speed: 2,000 rpm
0 - 12.5V
105
113
G
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)
119
120
Y
R
Power supply for ECM [Ignition switch ON]
BATTERY VOLTAGE
(11 - 14V)
MBIB0889E
MBIB0890E
Vacuum should exist.
PBIB1937E
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