Infiniti G37 Coupe. Manual — part 657
EXL-48
< COMPONENT DIAGNOSIS >
[XENON TYPE]
B2514 HEIGHT SENSOR UNUSUAL [RR]
Is the measurement value within the standard value?
YES
>> Replace AFS control unit.
Less than the standard value >>GO TO 3.
Higher than the standard value>>GO TO 6.
3.
CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT OUTPUT VOLTAGE
1.
Turn the ignition switch OFF.
2.
Disconnect the height sensor connector.
3.
Turn the ignition switch ON.
4.
Check the voltage between the height sensor harness connector and the ground.
Is the measurement value within the standard value?
YES
>> GO TO 4.
NO
>> Repair the harnesses or connectors.
4.
CHECK HEIGHT SENSOR SIGNAL OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect AFS control unit connector.
3.
Check continuity between the AFS control unit harness connector and the height sensor harness connec-
tor.
Does continuity exist?
YES
>> GO TO 5.
NO
>> Repair the harnesses or connectors.
5.
CHECK HEIGHT SENSOR SIGNAL SHORT CIRCUIT
Check continuity between the height sensor harness connector and the ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors.
NO
>> Replace the height sensor.
6.
CHECK HEIGHT SENSOR GROUND
Terminals
Voltage
(Approx.)
(+)
(
−
)
AFS control unit
Ground
Connector
Terminal
M16
28
0.25 - 4.75 V
Terminals
Voltage
(Approx.)
(+)
(
−
)
Height sensor
Ground
Connector
Terminal
B32
1
4 - 6 V
AFS control unit
Height sensor
Continuity
Connector
Terminal
Connector
Terminal
M16
28
B32
2
Existed
Terminals
Continuity
(+)
(
−
)
Height sensor
Ground
Connector
Terminal
B32
2
Not existed
B2514 HEIGHT SENSOR UNUSUAL [RR]
EXL-49
< COMPONENT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
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K
M
A
B
EXL
N
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P
Check the voltage between the AFS control unit harness connector and the ground.
Is the measurement value within the standard value?
YES
>> GO TO 7.
NO
>> Replace AFS control unit.
7.
CHECK HEIGHT SENSOR GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect AFS control unit connector and the height sensor connector.
3.
Check continuity between the AFS control unit harness connector and the height sensor harness connec-
tor.
Does continuity exist?
YES
>> Replace the height sensor.
NO
>> Repair the harnesses or connectors.
Component Inspection
INFOID:0000000001604626
1.
CHECK HEIGHT SENSOR
1.
Remove the height sensor (the height sensor connector is connected).
2.
Start the engine.
3.
Turn the light switch 2ND.
4.
Select "HI SEN OTP RR” of AFS data monitor item.
5.
With moving the sensor lever, check the monitor status.
Is the output value normal?
YES
>> Height sensor is normal.
NO
>> Replace the height sensor.
Terminals
Voltage
(Approx.)
(+)
(
−
)
AFS control unit
Ground
Connector
Terminal
M16
8
0 V
AFS control unit
Height sensor
Continuity
Connector
Terminal
Connector
Terminal
M16
8
B32
3
Existed
Monitor item
Condition
Monitor status
[Standard value
(Approx.)]
HI SEN OTP RR
Sensor lever po-
sition
Contact with
stopper
0.9 V
Moving be-
tween two posi-
tions
Smooth move-
ment
90
°
from stopper
4.5 V
EXL-50
< COMPONENT DIAGNOSIS >
[XENON TYPE]
B2516 SHIFT SIGNAL [P, R]
B2516 SHIFT SIGNAL [P, R]
Description
INFOID:0000000001604627
AFS control unit receives the shift position signal from TCM with CAN communication.
DTC Logic
INFOID:0000000001604628
DTC DETECTION LOGIC
[B2516] Shift signal [P, R]
DTC CONFIRMATION PROCEDURE
1.
DTC ERASE
Erase the DTC memory of AFS with CONSULT-III.
>> GO TO 2.
2.
DTC CONFIRMATION
1.
Turn ignition ON.
2.
Select the self-diagnosis with CONSULT-III.
Is “B2516” detected?
YES
>> Refer to
.
NO
>> Refer to
GI-38, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000001604629
1.
TCM SELF-DIAGNOSIS
Check the self-diagnosis result with CONSULT-III. Check that TCM does not detect any DTCs.
Is any DTC detected?
YES
>> Check TCM. Refer to
.
NO
>> GO TO 2.
2.
DTC ERASE
Erase the DTC memory of AFS with CONSULT-III.
Is the memory erased?
YES
>> Inspection end.
NO
>> Replace AFS control unit.
DTC detection condition
DTC erase condition
Possible causes
The shift position signal is not received.
Ignition switch OFF
• TCM
• AFS control unit
B2517 VEHICLE SPEED SIGNAL
EXL-51
< COMPONENT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
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K
M
A
B
EXL
N
O
P
B2517 VEHICLE SPEED SIGNAL
Description
INFOID:0000000001604630
AFS control unit receives the vehicle speed signal from the unified meter and A/C amp. with CAN communica-
tion.
DTC Logic
INFOID:0000000001604631
DTC DETECTION LOGIC
[B2517] Vehicle speed signal
DTC CONFIRMATION PROCEDURE
1.
DTC ERASE
Erase the DTC memory of AFS with CONSULT-III.
>> GO TO 2.
2.
DTC CONFIRMATION
1.
Turn ignition ON.
2.
Select the self-diagnosis with CONSULT-III.
Is “B2517” detected?
YES
>> Refer to
.
NO
>> Refer to
GI-38, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000001604632
1.
UNIFIED METER AND A/C AMP. SELF-DIAGNOSIS
Check the self-diagnosis result with CONSULT-III. Check that the unified meter and A/C amp. does not detect
any DTCs.
Is any DTC detected?
YES
>> Check the unified meter and A/C amp. Refer to
NO
>> GO TO 2.
2.
DTC ERASE
Erase the DTC memory of AFS with CONSULT-III.
Is the memory erased?
YES
>> Inspection end.
NO
>> Replace AFS control unit.
DTC detection condition
DTC erase condition
Possible causes
The vehicle speed signal is not received.
Ignition switch OFF
• Unified meter and A/C
amp.
• AFS control unit
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