2008 INFINITI QX56 Factory Service Manual

Page 3337 of 4083

INFINITI QX56 2008  Factory Service Manual SN-12
< FUNCTION DIAGNOSIS >
FRONT AND REAR SONAR SYSTEM
Component Description
INFOID:0000000001754064
CONSULT-III Function (SONAR)INFOID:0000000001754065
SELF DIAGNOSTIC PROCEDURE
CONSULT-III can be

Page 3338 of 4083

INFINITI QX56 2008  Factory Service Manual SN
POWER SUPPLY AND GROUND CIRCUITSN-13
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure Fo r Rear Sonar SystemINFOID:000000

Page 3339 of 4083

INFINITI QX56 2008  Factory Service Manual SN-14
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Are any fuses blown?
YES >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to GI-
41, "Circ

Page 3340 of 4083

INFINITI QX56 2008  Factory Service Manual SN
SONAR SENSOR CIRCUIT INSPECTIONSN-15
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
SONAR SENSOR CIRCUIT INSPECTION
DescriptionINFOID:0000000004832343
With power and ground supplied to the so

Page 3341 of 4083

INFINITI QX56 2008  Factory Service Manual SN-16
< COMPONENT DIAGNOSIS >
SONAR SENSOR CIRCUIT INSPECTION
4. Check continuity between sonar control unit harness connectors
(A, B) and ground.
Are the inspection results normal?
YES >> Inspection

Page 3342 of 4083

INFINITI QX56 2008  Factory Service Manual SN
SONAR BUZZER CIRCUIT INSPECTIONSN-17
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
SONAR BUZZER CIRCUIT INSPECTION
DescriptionINFOID:0000000004832346
When the A/T selector lever is not it pa

Page 3343 of 4083

INFINITI QX56 2008  Factory Service Manual SN-18
< COMPONENT DIAGNOSIS >
SONAR BUZZER CIRCUIT INSPECTION
3. Check continuity between sonar control unit harness connectors
(A, B) and sonar buzzer harness connectors (C).
4. Check continuity betw

Page 3344 of 4083

INFINITI QX56 2008  Factory Service Manual SN
SONAR SYSTEM OFF SWITCH CIRCUIT INSPECTIONSN-19
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
SONAR SYSTEM OFF SWITCH  CIRCUIT INSPECTION
DescriptionINFOID:0000000004832350
The sonar system