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AIR LEVELIZER CONTROL MODULE
[AIR LEVELIZER CONTROL SYSTEM]
< ECU DIAGNOSIS INFORMATION >
Terminal
(Wire color)
Description
+
−
5
(W)
Ground
7
(P)
16
(L)
9
(P/L)
Ground
Signal name
Input/
Output
Vehicle height sensor
(SIGNAL)
Input
Input/
Output
CAN-L
Air levelizer control module
power supply
Input
11
(V/W)
Ground
Exhaust solenoid
Output
13
(R)
Ground
Vehicle height sensor
(Power supply)
Output
16
(L)
7
(P)
CAN-H
Input/
Output
IGN ON
Reference value
(Approx.)
A
Condition
IGN ON
0.2 – 4.6 V
B
IGN OFF
0V
—
54 – 69 Ω
IGN ON
10 – 16 V
IGN OFF
0V
D
Exhaust solenoid: ON
9 – 16 V
Exhaust solenoid: OFF
Less than 2 V
IGN ON
4.5 – 5.5 V
IGN OFF
0V
—
54 – 69 Ω
Fail-safe
SCS
F
INFOID:0000000006256054
If malfunction is detected, control stops.
The system may enter fail-safe mode under certain conditions (for example, over-laden conditions) when electronic circuit is normal.
In this case, always check that the system returns to normal by starting engine after unloading load.
DTC Inspection Priority Chart
Priority
• U1000 CAN COMM CIRCUIT
• U1010 CONTROL UNIT (CAN)
2
•
•
•
•
•
H
I
J
Detected items (DTC)
1
G
INFOID:0000000006256055
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
3
C
K
C1801 VHCL HEIGHT SENSOR
C1802 AIR SUS COMPRS RELAY
C1803 AIR SUS EXH SOL
C1806 VHCL HEIGHT SEN FIX
C1807 VHCL HEIGHT SEN VOLT
L
• C1804 VHCL HEIGHT ADJ UP
• C1805 VHCL HEIGHT ADJ DOWN
• C1808 AIR SUS COMPRS FNCTN
M
DTC Index
INFOID:0000000006256056
N
DTC
CONSULT-III display
Reference page
C1801
VHCL HEIGHT SENSOR
SCS-69
C1802
AIR SUS COMPRS RELAY
SCS-72
C1803
AIR SUS EXH SOL
SCS-74
C1804
VHCL HEIGHT ADJ UP
SCS-77
C1805
VHCL HEIGHT ADJ DOWN
SCS-80
C1806
VHCL HEIGHT SEN FIX
SCS-81
C1807
VHCL HEIGHT SEN VOLT
SCS-82
C1808
AIR SUS COMPRS FNCTN
SCS-84
Revision: 2010 May
SCS-59
2011 QX56
O
P