Infiniti QX56 (Z62). Manual — part 144
DIAGNOSIS AND REPAIR WORK FLOW
BRC-61
< BASIC INSPECTION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
YES
>> GO TO 7.
NO
>> Check harness and connectors based on the information obtained by interview. Refer to
.
7.
FINAL CHECK
With CONSULT-III.
1.
Check the reference value for “ABS”.
2.
Recheck the symptom and check that the symptom is not reproduced on the same conditions.
Is the symptom reproduced?
YES
>> GO TO 3.
NO
>> INSPECTION END
Diagnostic Work Sheet
INFOID:0000000006222586
Description
• In general, customers have their own criteria for a problem. Therefore, it is important to understand the
symptom and status well enough by asking the customer about his/her concerns carefully. To systemize all
the information for the diagnosis, prepare the interview sheet referring to the interview points.
• In some cases, multiple conditions that appear simultaneously may cause a DTC to be detected.
INTERVIEW SHEET SAMPLE
Interview sheet
Customer
name
MR/MS
Registration
number
Initial year
registration
Vehicle type
VIN
Storage date
Engine
Mileage
km ( Mile)
Symptom
Does not operate ( ) function
Warning lamp for ( ) turns ON.
Noise
Vibration
Other
( )
First occurrence
Recently
Other ( )
Frequency of occurrence
Always
Under a certain conditions of
Sometimes ( time(s)/day)
Climate con-
ditions
Irrelevant
Weather
Fine
Cloud
Rain
Snow
Others ( )
Temperature
Hot
Warm
Cool
Cold
Temperature [Approx.
°
C (
°
F)]
Relative humidity
High
Moderate
Low
Road conditions
Urban area
Suburb area
Highway
Mountainous road (uphill or downhill)
Rough road
Operating condition, etc.
Irrelevant
When engine starts
During idling
During driving
During acceleration
At constant speed driving
During deceleration
During cornering (right curve or left curve)
When steering wheel is steered (to right or to left)
BRC-62
< BASIC INSPECTION >
[WITH VDC]
DIAGNOSIS AND REPAIR WORK FLOW
Other conditions
Memo
Interview sheet
Customer
name
MR/MS
Registration
number
Initial year
registration
Vehicle type
VIN
Storage date
Engine
Mileage
km ( Mile)
ADDITIONAL SERVICE WHEN REPLACING ABS ACTUATOR AND ELECTRIC
UNIT (CONTROL UNIT)
BRC-63
< BASIC INSPECTION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
ADDITIONAL SERVICE WHEN REPLACING ABS ACTUATOR AND ELEC-
TRIC UNIT (CONTROL UNIT)
Description
INFOID:0000000006222587
When replaced the ABS actuator and electric unit (control unit), perform decel G sensor calibration. Refer to
.
BRC-64
< BASIC INSPECTION >
[WITH VDC]
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Description
INFOID:0000000006222588
Always adjust the neutral position of steering angle sensor before driving when the following operation is per-
formed.
×
: Required —: Not required
Work Procedure
INFOID:0000000006222589
ADJUST THE NEUTRAL POSITION OF STEERING ANGLE SENSOR
CAUTION:
Always use CONSULT-III when adjusting the neutral position of steering angle sensor. (It cannot be
adjusted other than with CONSULT-III.)
1.
CHECK THE VEHICLE STATUS
Stop vehicle with front wheels in the straight-ahead position.
Does the vehicle stay in the straight-ahead position?
YES
>> GO TO 2.
NO
>> Steer the steering wheel to the straight-ahead position. Stop the vehicle.
2.
ADJUST NEUTRAL POSITION OF STEERING ANGLE SENSOR
With CONSULT-III.
1.
Turn the ignition switch ON.
CAUTION:
Never start engine.
2.
Select “ABS”, “WORK SUPPORT” and “ST ANGLE SENSOR ADJUSTMENT” in this order.
3.
Select “START”.
CAUTION:
Never touch steering wheel while adjusting steering angle sensor.
4.
After approx. 10 seconds, select “END”.
5.
Turn ignition switch OFF and then turn it ON again.
CAUTION:
Be sure to perform the operation above.
>> GO TO 3.
3.
CHECK DATA MONITOR
With CONSULT-III.
1.
The vehicle is either pointing straight ahead or the vehicle needs to be moved. Stop when it is pointing
straight ahead.
Procedure
Adjust the neutral position of steering angle sensor
Removing/ installing ABS actuator and electric unit (control unit)
—
Replacing ABS actuator and electric unit (control unit)
—
Removing/installing steering angle sensor
×
Replacing steering angle sensor
×
Removing/installing steering components
×
Replacing steering components
×
Removing/installing suspension components
×
Replacing suspension components
×
Removing/installing tire
—
Replacing tire
—
Tire rotation
—
Adjusting wheel alignment.
×
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