2007 INFINITI M35 Factory Service Manual

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Page 3601 of 4647

INFINITI M35 2007 Factory Service Manual LT-150
ACTIVE AFS
Revision: 2007 April2007 M35/M45
28 BR Height sensor signal ON Vehicle heightUnloaded
vehicle posi-
tionApprox. 2.5 V
Maximum
laden condi-
tion Approx. 1.0 V
(With 18- inch wheel)

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INFINITI M35 2007 Factory Service Manual ACTIVE AFS
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How to Proceed with Trouble DiagnosisNKS003QK
1. Confirm the symptom or customer complaint.
2. Understand operation descrip

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INFINITI M35 2007 Factory Service Manual LT-152
ACTIVE AFS
Revision: 2007 April2007 M35/M45
CONSULT-II Function (ADAPTIVE LIGHT)NKS003QM
CONSULT-II can display each diagnostic item using diagnostic test modes shown following.
CONSULT-II BASI

LT-152
ACTIVE AFS
Revision: 2007 April2007 M35/M45
CONSULT-II Function (ADAPTIVE LIGHT)NKS003QM
CONSULT-II can display each diagnostic item using diagnostic test modes shown following.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
WORK SUPPORT (STEERING ANGLE SENSOR ADJUSTMENT)
Work Support Item List
CAUTION:
Never use this function but on VDC side.
Notes on Steering Angle Sensor (Neutral Point) Adjustment
Be sure to adjust steering angle sensor neutral point before driving if any of the following has been
removed/installed or replaced: Steering angle sensor; Steering system part, Suspension system part.
On vehicle with VDC, perform steering angle sensor neutral point adjustment only on VDC side. Never
perform the adjustment on ADAPTIVE LIGHT side as this may lead to VDC malfunctions. If the adjust-
ment has been performed on AFS side, readjust on VDC side. For steering angle sensor neutral point
adjustment procedures on VDC side, refer to BRC-6, "
Adjustment of Steering Angle Sensor Neutral Posi-
tion" in “ON-VEHICLE SERVICE”.
When replaced steering angle sensor, AFS control unit detects “DTC B2515 ST ANG SEN SIG”. Delete
the malfunction history after adjust steering angle sensor on VDC side.
Steering angle sensor neutral point adjustment should be performed using CONSULT-II. (The adjustment
will not be possible without CONSULT-II.)
Operation Procedure
Refer to BRC-6, "Adjustment of Steering Angle Sensor Neutral Position" .
WORK SUPPORT (LEVELIZER ADJUSTMENT)
Work Support Item List
Operation Procedure
1. Set the vehicle in unload condition. (Removal all loads in driver, passenger and trunk rooms.)
2. Touch “ADAPTIVE LIGHT” on “SELECT SYSTEM” screen.
3. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
4. Touch “LEVELIZER ADJUSTMENT”.
5. Touch “START”.
6. “ADJUSTMENT COMPLETE” will be displayed.
CAUTION:
When “CAN NOT BE TESTED” is displayed, AFS control unit stops levelizer adjustment as it
detected the change of height sensor signal. AFS control unit detects “DTC B2519 LEVELIZER
CALIB”.
System part Check item, diagnosis mode Description
ADAPTIVE LIGHTWORK SUPPORTAdjusts steering angle sensor (Never use this function but on VDC side) and
adjusts levelizer.
SELF-DIAG RESULTS Displays self-diagnosis
DATA MONITOR Displays AFS control unit inputs and outputs in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TESTAFS control unit sends a drive signal to electronic components to check their
operation.
ECU PART NUMBER AFS control unit part number can be read.
Item Description
ST ANG SEN ADJUSTMENT Adjust steering angle sensor neutral point (straight-ahead position).
Item Description
LEVELIZER ADJUSTMENT Adjust the height sensor signal value at unloaded vehicle position recognized by AFS control unit.

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INFINITI M35 2007 Factory Service Manual ACTIVE AFS
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Turn ignition switch OFF not to change the vehicle height. Then turn ignition switch ON and per-
form levelizer adjustment

ACTIVE AFS
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Turn ignition switch OFF not to change the vehicle height. Then turn ignition switch ON and per-
form levelizer adjustment again.
When “ADJUSTMENT COMPLETE” is displayed, and “NO DTC IS DETECTED” is displayed on
self-diagnosis results, levelizer adjustment is completed.
When “ADJUSTMENT COMPLETE” is displayed, and “B2514 HI SEN UNUSUAL” is displayed on
self-diagnosis results, refer to LT- 1 7 5 , "
DTC B2514 HI SEN UNUSUAL RR" .
7. Touch “END”.
8. Turn ignition switch OFF.
SELF-DIAG RESULTS
Operation Procedure
1. Touch “ADAPTIVE LIGHT” on “SELECT SYSTEM” screen.
2. Touch “SELF-DIAG RESULTS” on the “SELECT DIAG MODE” screen.
3. Check display content in self-diagnostic results.
CAUTION:
DTC B2503 and B2504 cannot be detected before the swivel operation. Thus, perform swivel operation
first, and then check the display in self-diagnostic results.
Description of DTC and Solutions after Detection
CONSULT-II can detect DTC (Diagnosis trouble code). The descriptions and solutions of DTC are listed
below.
Details of
error
indication
detected by
CONSULT-
IIConditions of error detectionFail-safe
1. Swivel operation
2. Auto aiming operation
3. AFS OFF indicator operation
4. CancellationReference
CAN
COMM CIR-
CUIT
[U1000]Any of several items below have errors.
TRANSMIT DIAG
Reception from ECM
Reception from unified meter and A/C amp.
Reception from TCM
Reception from steering angle sensor
Reception from IPDM E/R1. Stop the swivel motor RH and
LH when the malfunction
occurred.
2. Stop the aiming motors when the
malfunction occurred.
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.LAN-50, "
CAN
System Speci-
fication Chart".
CONTROL
UNIT (CAN)
[U1010]AFS control unit malfunctions.1. Stop the swivel motor RH and
LH when the malfunction
occurred.
2. Stop aiming motors when the
malfunction occurred.
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.Replace
AFS control
unit. LT-192

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INFINITI M35 2007 Factory Service Manual LT-154
ACTIVE AFS
Revision: 2007 April2007 M35/M45
SWIVEL
ACTUATOR
[RH]
[B2503]Any of several statuses below
Large difference between swivel motor drive signal (swivel
angle command signal) transm

LT-154
ACTIVE AFS
Revision: 2007 April2007 M35/M45
SWIVEL
ACTUATOR
[RH]
[B2503]Any of several statuses below
Large difference between swivel motor drive signal (swivel
angle command signal) transmitted by AFS control unit and
swivel position sensor signal (swivel angle feed back signal)
by swivel position sensor exists for 2 seconds or longer. Or
swivel position sensor signal does not change for 2 seconds
or longer even when AFS control unit transmit swivel motor
drive signal.
CAUTION:
Detects when swivel operating (excludes initialization).
Short or open circuit exists for 2 seconds or longer on one of
swivel motor circuits (AFS control unit terminals 11, 13, 32 or
34).
CAUTION:
Detects when swivel operating (excludes initialization).
Voltage of swivel position sensor power supply (AFS control
unit terminal 4) had more than 6 V or had less than 4 V for 2
seconds or longer.
Voltage of swivel position sensor signal (AFS control unit ter-
minal 9) had more than 4.75 V or had less than 0.25 V for 2
seconds or longer.1. Stop the swivel motor RH and
LH when the malfunction
occurred.
2. Reduce approx. 2 V of the aim-
ing motor drive signal value from
that of when error is detected.
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.LT- 1 6 1 , "
DTC
B2503
SWIVEL
ACTUATOR
RH"
SWIVEL
ACTUATOR
[LH]
[B2504]Any of several statuses below
Large difference between swivel motor drive signal (swivel
angle command signal) transmitted by AFS control unit and
swivel position sensor signal (swivel angle feed back signal)
by swivel position sensor exists for 2 seconds or longer. Or
swivel position sensor signal does not change for 2 seconds
or longer even when AFS control unit transmit swivel motor
drive signal.
CAUTION:
Detects when swivel operating (excludes initialization).
Short or open circuit exists for 2 seconds or longer on one of
swivel motor circuits (AFS control unit terminals 15, 17, 36 or
38).
CAUTION:
Detects when swivel operating (excludes initialization).
Voltage of swivel position sensor power supply (AFS control
unit terminal 24) had more than 6 V or had less than 4 V for 2
seconds or longer.
Voltage of swivel position sensor signal (AFS control unit ter-
minal 29) had more than 4.75 V or had less than 0.25 V for 2
seconds or longer.1. Stop the swivel motor RH and
LH when the malfunction
occurred.
2. Reduce approx. 2 V of the aim-
ing motor drive signal value from
that of when error is detected.
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.LT- 1 6 8 , "
DTC
B2504
SWIVEL
ACTUATOR
LH"
HI SEN
UNUSUAL
[RR]
[B2514]Any of several statuses belowVoltage of height sensor power supply (AFS control unit termi-
nal 6) had more than 6 V or had less than 4 V for 2 seconds or
longer.
Voltage of height sensor signal (AFS control unit terminal 28)
had more than 4.75 V or had less than 0.25 V for 2 seconds or
longer.1. Normal operation
2. Stop aiming motors when the
malfunction occurred.
3. Remains OFF.
4. Turn ignition switch OFF.LT- 1 7 5 , "
DTC
B2514 HI SEN
UNUSUAL
RR"
Details of
error
indication
detected by
CONSULT-
IIConditions of error detectionFail-safe
1. Swivel operation
2. Auto aiming operation
3. AFS OFF indicator operation
4. CancellationReference

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INFINITI M35 2007 Factory Service Manual ACTIVE AFS
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ST ANG
SEN SIG
[B2515]Any of several statuses belowCannot receive steering angle sensor signal.
Receives steering angle

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ST ANG
SEN SIG
[B2515]Any of several statuses belowCannot receive steering angle sensor signal.
Receives steering angle sensor error.
Receives steering angle sensor signal except −943° to +943°.1. Back to the initial position.
2. Normal operation
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.BRC-24, "
Self-
Diagnosis".
If above sys-
tem is normal,
replace AFS
control unit.
SHIFT SIG
[P, R]
[B2516]Cannot receive A/T position indicator signal.1. Back to the initial position.
2. Normal operation
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.AT- 9 2 , "
SELF-
DIAGNOSTIC
RESULT
MODE".
If above sys-
tem is normal,
replace AFS
control unit.
VEHICLE
SPEED SIG
[B2517]Cannot receive vehicle speed signal.1. Back to the initial position.
2. Stop when the malfunction
occurred.
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.DI-31, "
SELF-
DIAG
RESULTS".
If above sys-
tem is normal,
replace AFS
control unit.
HEAD
LAMP SIG
[B2518]Cannot receive low beam status signal.1. Back to the initial position.
2. Stop aiming motors when the
malfunction occurred.
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.PG-20,
"SELF-DIAG
RESULTS".
If above sys-
tem is normal,
replace AFS
control unit.
LEVEL-
IZER CALIB
[B2519]Cannot recognize height sensor signal value at unloaded vehicle
position.1. Normal operation
2. Stop aiming motors when the
malfunction occurred.
3. Remains OFF.
4. When levelizer adjustment is
completedLT-152,
"WORK SUP-
PORT (LEV-
ELIZER
ADJUST-
MENT)"
ST ANGLE
SEN CALIB
[B2520]Cannot recognize steering angle sensor neutral point (straight-
ahead position).1. Back to the initial position.
2. Normal operation
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. When steering angle sensor
adjustment is completedBRC-6, "Adjustment of
Steering Angle
Sensor Neu-
tral Position". Details of
error
indication
detected by
CONSULT-
IIConditions of error detectionFail-safe
1. Swivel operation
2. Auto aiming operation
3. AFS OFF indicator operation
4. CancellationReference

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INFINITI M35 2007 Factory Service Manual LT-156
ACTIVE AFS
Revision: 2007 April2007 M35/M45
CAUTION:
If DTC relating to CAN communication [U1000] and other components are displayed at the same
time, diagnose CAN communication first.
Make s

LT-156
ACTIVE AFS
Revision: 2007 April2007 M35/M45
CAUTION:
If DTC relating to CAN communication [U1000] and other components are displayed at the same
time, diagnose CAN communication first.
Make sure of the normal operation after the parts (except AFS control unit) replacement according
to the self-diagnosis results. Delete the malfunction history.
Display Results
0: There is malfunction now.
1 – 39: Displays when it is normal at present and finds malfunction in the past. It increases in order
of 0→1→2...38→39 after returning to the normal condition whenever IGN OFF→ON. If it is over 39,
it is fixed to 39 until the self-diagnostic results are erased. It returns to 0 when malfunction is
detected again in the process.
ECU CIRC
[B2521]Any of several statuses below
Short circuit exists for 2 seconds or longer on power supply
(approx. 12 V) or ground of swivel position sensor (RH) power
supply (AFS control unit terminal 4).
Short circuit exists for 2 seconds or longer on power supply
(approx. 12 V) of swivel position sensor (RH) signal (AFS con-
trol unit terminal 9).
Short circuit exists for 2 seconds or longer on power supply
(approx. 12 V) or ground of swivel position sensor (LH) power
supply (AFS control unit terminal 24).
Short circuit exists for 2 seconds or longer on power supply
(approx. 12 V) of swivel position sensor (LH) signal (AFS con-
trol unit terminal 29).
Short circuit exists for 2 seconds or longer on power supply
(approx. 12 V) or ground of height sensor power supply (AFS
control unit terminal 6).
Short circuit exists for 2 seconds or longer on power supply
(approx. 12 V) of height sensor signal (AFS control unit termi-
nal 28).
AFS control unit (RAM/ROM) malfunctions.1. Stop the swivel motor RH and
LH when the malfunction
occurred.
2. Stop aiming motors when the
malfunction occurred.
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.LT- 1 7 9 , "
DTC
B2521 ECU
CIRC"
ECM SIG
[B2522]Cannot receive engine speed signal.1. Back to the initial position.
2. Stop when the malfunction
occurred.
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.EC-126,
"SELF-DIAG
RESULTS
MODE".
If above sys-
tem is normal,
replace AFS
control unit.
AFS SIG
[B2523]Cannot transmit AFS off indicator signal.1. Back to the initial position.
2. Normal operation
3. Flashes at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.Replace
AFS control
unit LT- 1 9 2
Details of
error
indication
detected by
CONSULT-
IIConditions of error detectionFail-safe
1. Swivel operation
2. Auto aiming operation
3. AFS OFF indicator operation
4. CancellationReference

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INFINITI M35 2007 Factory Service Manual ACTIVE AFS
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DATA MONITOR
Operation Procedure
1. Touch “ADAPTIVE” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on �

ACTIVE AFS
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DATA MONITOR
Operation Procedure
1. Touch “ADAPTIVE” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch “ALL SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM” screen.
4. When “SELECTION FROM MENU” is selected, touch items to be monitored. When “ALL SIGNALS” is
selected, all items will be monitored.
5. Touch “START”.
6. Touch “RECORD” while monitoring and status of the item being monitored can be recorded. To stop
recording, touch “STOP”.
Data Monitor item
ALL SIGNALS Monitors all items.
SELECTION FROM MENU Selects items and monitors them.
Monitors itemMeasuring condition
Description
Operation or conditionReference
value
STR ANGLE SIG “ ° ” Steering wheelStraight-ahead Approx. 0°
Displays steering angle based on
steering angle sensor signals.
TurnedApprox. −550°
to 550°
VHCL SPD “ km/h ” —Displays vehicle speed based on
vehicle speed sensor signals.
SLCT LVR POSI “ P – 1 ” —Displays A/T selector lever position
based on AT position indicator sig-
nals.
HEAD LAMP “ ON/OFF ” Lighting switch 2ND ON Displays low beam headlamps on/off
status based on low beam status sig-
nal. Out of 2ND OFF
AFS SW “ ON/OFF ” AFS switchON ON
Displays AFS switch ON/OFF position
based on AFS switch signals.
OFF OFF
HI SEN OTP RR “ V ”Vehicle height
(With 18-inch wheel)Unloaded vehi-
cle positionApprox. 2.5 V
Displays vehicle height value based
on height sensor signals. Maximum
laden conditionApprox. 1.0 V
Vehicle height
(With 19-inch wheel)Unloaded vehi-
cle positionApprox. 2.5 V
Maximum
laden conditionApprox. 1.3 V
LEV ACTR VLTG “% ”Low beam headlamp
auto aiming
(With 18-inch wheel)Unloaded vehi-
cle positionApprox.
70.0%
Displays aiming motor drive signal
based on AFS control unit interpreta-
tion of various vehicle sensor signals.
The value is a ratio to IGN power sup-
ply. Maximum
laden conditionApprox.
38.0%
Low beam headlamp
auto aiming
(With 19-inch wheel)Unloaded vehi-
cle positionApprox.
70.0%
Maximum
laden conditionApprox.
41.8%
SWVL SEN RH* “ ° ”Low beam headlamp
(right) swivelOFF Approx. 0°Displays low beam headlamp (right)
swivel angle based on swivel position
sensor signals (right). ON +°
SWVL SEN LH* “ ° ”Low beam headlamp
(left) swivelOFF Approx. 0°Displays low beam headlamp (left)
swivel angle based on swivel position
sensor signals (left). ON +°

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