2010 INFINITI QX56 ignition

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Page 3252 of 4210

INFINITI QX56 2010  Factory Service Manual SCS-20
< COMPONENT DIAGNOSIS >
COMPRESSOR MOTOR RELAY
COMPRESSOR MOTOR RELAY
DescriptionINFOID:0000000005148178
Receives suspension air compressor ON signal from suspension control unit. When activate

Page 3253 of 4210

INFINITI QX56 2010  Factory Service Manual COMPRESSOR MOTOR RELAYSCS-21
< COMPONENT DIAGNOSIS >
C
DF
G H
I
J
K L
M A
B
SCS
N
O P
1. Turn ignition switch OFF.
2. Disconnect suspension control unit connector B3.
3. Check continuity between suspe

Page 3254 of 4210

INFINITI QX56 2010  Factory Service Manual SCS-22
< COMPONENT DIAGNOSIS >
COMPRESSOR MOTOR RELAY
1. Connect compressor motor relay connectors E130 and E131.
2. Disconnect suspension air compressor connector C9.
3. Turn ignition ON.
4. Select "

Page 3256 of 4210

INFINITI QX56 2010  Factory Service Manual SCS-24
< COMPONENT DIAGNOSIS >
EXHAUST VALVE SOLENOID CIRCUIT
EXHAUST VALVE SOLENOID CIRCUIT
DescriptionINFOID:0000000005148184
Receives exhaust valve solenoid signal from suspension control unit. Whe

Page 3257 of 4210

INFINITI QX56 2010  Factory Service Manual EXHAUST VALVE SOLENOID CIRCUITSCS-25
< COMPONENT DIAGNOSIS >
C
DF
G H
I
J
K L
M A
B
SCS
N
O P
1. Turn ignition switch OFF.
2. Disconnect suspension control unit connector B3 and suspen- sion air compr

Page 3258 of 4210

INFINITI QX56 2010  Factory Service Manual SCS-26
< COMPONENT DIAGNOSIS >
CK SUSP WARNING INDICATOR CONTROL CIRCUIT
CK SUSP WARNING INDICATOR CONTROL CIRCUIT
DescriptionINFOID:0000000005148187
The CK SUSP warning lamp is controlled by a ground

Page 3260 of 4210

INFINITI QX56 2010  Factory Service Manual SCS-28
< ECU DIAGNOSIS >
SUSPENSION CONTROL UNIT
ECU DIAGNOSIS
SUSPENSION CONTROL UNIT
Reference ValueINFOID:0000000005148190
TERMINAL LAYOUT
PHYSICAL VALUES
AWLIA1640ZZ
Terminal
(Wire color) Descript

Page 3269 of 4210

INFINITI QX56 2010  Factory Service Manual SUSPENSION CONTROL SYSTEM INOPERATIVESCS-37
< SYMPTOM DIAGNOSIS >
C
DF
G H
I
J
K L
M A
B
SCS
N
O P
SUSPENSION CONTROL SYSTEM INOPERATIVE
DescriptionINFOID:0000000005148194
The suspension control syste