2006 INFINITI M35 Factory Service Manual

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Page 4577 of 5621

INFINITI M35 2006 Factory Service Manual LT-150
ACTIVE AFS
Revision: 2006 January2006 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 2006 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 descr

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INFINITI M35 2006 Factory Service Manual LT-152
ACTIVE AFS
Revision: 2006 January2006 M35/M45
CONSULT-II Function (ADAPTIVE LIGHT)NKS003QM
CONSULT-II can display each diagnostic item using diagnostic test modes shown following.
CONSULT-II BA

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INFINITI M35 2006 Factory Service Manual ACTIVE AFS
LT-153
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4. Select the desired part to be diagnosed on the“ SELECT DIAG
MODE” screen.
WORK SUPPORT (STEERING ANGLE S

ACTIVE AFS
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4. Select the desired part to be diagnosed on the“ SELECT DIAG
MODE” screen.
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" in BRC section.
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”.
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-174, "
DTC B2514 HI SEN UNUSUAL RR" .
BCIA0031E
Item Description
ST ANGLE SENSOR 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 2006 Factory Service Manual LT-154
ACTIVE AFS
Revision: 2006 January2006 M35/M45
7. Touch “END”.
8. Turn ignition switch OFF.
SELF-DIAG RESULTS
Operation Procedure
1. Touch “ADAPTIVE LIGHT” on “SELECT SYSTEM” screen.

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INFINITI M35 2006 Factory Service Manual ACTIVE AFS
LT-155
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SWIVEL
ACTUATOR
[RH]
[B2503]Any of several statuses below
Large difference between swivel motor drive signal (swivel
a

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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-162, "
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-168, "
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-174, "
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

Page 4583 of 5621

INFINITI M35 2006 Factory Service Manual LT-156
ACTIVE AFS
Revision: 2006 January2006 M35/M45
ST ANG
SEN SIG
[B2515]Any of several statuses belowCannot receive steering angle sensor signal.
Receives steering angle sensor error.
Receives ste

LT-156
ACTIVE AFS
Revision: 2006 January2006 M35/M45
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-23, "
Self-
Diagnosis" in
BRC section.
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" in A/T
section.
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-32, "
SELF-
DIAG
RESULTS" in
DI section.
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-21,
"SELF-DIAG
RESULTS" in
PG section.
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- 1 5 3 ,
"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"
in BRC sec-
tion. 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 2006 Factory Service Manual ACTIVE AFS
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CAUTION:
If DTC relating to CAN communication [U1000] and other components are displayed at the same
time,

ACTIVE AFS
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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
12...3839 after returning to the normal condition whenever IGN OFFON. 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-178, "
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-137,
"SELF-DIAG
RESULTS
MODE" in EC
section.
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-191
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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