Infiniti G37 Coupe. Manual — part 175
AV
STEERING ANGLE SENSOR SIGNAL 1, 2 CIRCUIT
AV-453
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace Steering angle sensor.
Terminal
Condition
Reference value
23, 24 - Ground
Ignition
switch
ON
Turn the steering to the right
A: Sensor signal 1
B: Sensor signal 2
Turn the steering to the left
A: Sensor signal 1
B: Sensor signal 2
SKIB3827E
SKIB3828E
AV-454
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
STEERING ANGLE SENSOR SIGNAL 3 CIRCUIT
STEERING ANGLE SENSOR SIGNAL 3 CIRCUIT
Description
INFOID:0000000001558891
• Steering angle sensor signal 1, 2 detects the turning direction and quantity of the steering and transmits it to
the camera control unit.
• Steering angle sensor signal 3 detects the neutral position of the steering and transmits it to the camera con-
trol unit.
• Camera control unit performs the correction of neutral position with sensor signal 1, 2, 3 and vehicle speed
signal.
Diagnosis Procedure
INFOID:0000000001558892
1.
CHECK CONTINUITY STEERING ANGLE SENSOR SIGNAL 3 CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect camera control unit connector and steering angle sensor connector.
3.
Check continuity between camera control unit harness connector terminal 25 and steering angle sensor
harness connector terminal 5.
4.
Check continuity between camera control unit harness connector terminal 25 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK SENSOR SIGNAL 3
1.
Connect camera control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between camera control unit harness connector terminal 25 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace camera control unit.
3.
CHECK SENSOR SIGNAL 3
1.
Connect steering angle sensor connector.
2.
Check signal between camera control unit harness connector terminal 25 and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace Steering angle sensor.
25 - 5
: Continuity should exist.
5 - Ground
: Continuity should not exist.
25 - Ground
: Approx. 5 V
Terminal
Condition
Reference value
25 - Ground
Ignition
switch
ON
Turn the steering around the neu-
tral position
A: Sensor signal 3
B: Sensor signal 1
SKIB3829E
AV
STEERING SWITCH SIGNAL A CIRCUIT
AV-455
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
STEERING SWITCH SIGNAL A CIRCUIT
Description
INFOID:0000000001558893
Transmits the steering switch signal to AV control unit.
Diagnosis Procedure
INFOID:0000000001558894
1.
CHECK STEERING SWITCH SIGNAL A CIRCUIT
1.
Disconnect AV control unit connector and spiral cable connector.
2.
Check continuity between AV control unit harness connector terminal 6 and spiral cable harness connec-
tor terminal 24.
3.
Check continuity between AV control unit harness connector terminals 6 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK SPIRAL CABLE
Check spiral cable.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace spiral cable.
3.
CHECK AV CONTROL UNIT VOLTAGE
1.
Connect AV control unit connector and spiral cable connector.
2.
Turn ignition switch ON.
3.
Check voltage between AV control unit harness connector terminals 6 and 15.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace AV control unit.
4.
CHECK STEERING SWITCH
1.
Turn ignition switch OFF.
2.
Check steering switch. Refer to
AV-455, "Component Inspection"
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace steering switch.
Component Inspection
INFOID:0000000001558895
Measure the resistance between the steering switch connector terminals 14 to 17 and 15 to 17.
6 - 24
: Continuity should exist.
6 - Ground
: Continuity should not exist.
6 - 15
: Approx. 5 V
AV-456
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
STEERING SWITCH SIGNAL A CIRCUIT
Standard
Between terminals 14 and
17
ENTER switch ON
: 2003 – 2043
Ω
switch ON
: 716 – 730
Ω
MENU DOWN switch ON
: 318 – 324
Ω
MENU UP switch ON
: 120 – 122
Ω
SOURCE switch ON
: 0
Ω
Between terminals 15 and
17
switch ON
: 716 – 730
Ω
switch ON
: 318 – 324
Ω
VOL UP switch ON
: 120 – 122
Ω
VOL DOWN switch ON
: 0
Ω
JSNIA0112GB
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