2010 INFINITI QX56 B2114

ADP-1
BODY INTERIOR
C
DE
F
G H
I
K L
M
SECTION ADP
A
B
ADP
N
O P
CONTENTS
AUTOMATIC DRIVE POSITIONER
BASIC INSPECTION ....... .............................5
DIAGNOSIS AND REPAIR WORKFLOW ..... .....5
Work Flow ........................................................... ......5
INSPECTION AND ADJUSTMENT .....................8
Preliminary Check ............................................... ......8
Special Repair Requirement .....................................8
PRE-INSPECTION FOR DIAGNOSTIC ..............9
Basic Inspection .................................................. ......9
FUNCTION DIAGNOSIS ..............................11
AUTOMATIC DRIVE POSITIONER SYSTEM ....11
AUTOMATIC DRIVE POSITIONER SYSTEM ....... ....11
AUTOMATIC DRIVE POSITIONER SYSTEM :
System Diagram ......................................................
11
AUTOMATIC DRIVE POSITIONER SYSTEM :
System Description .................................................
12
AUTOMATIC DRIVE POSITIONER SYSTEM :
Component Parts Location ......................................
12
AUTOMATIC DRIVE POSITIONER SYSTEM :
Component Description ..........................................
13
MANUAL FUNCTION ............................................ ....14
MANUAL FUNCTION : System Diagram ................15
MANUAL FUNCTION : System Description ............15
MANUAL FUNCTION : Component Parts Loca-
tion ..........................................................................
17
MANUAL FUNCTION : Component Description ....17
MEMORY FUNCTION ........................................... ....18
MEMORY FUNCTION : System Diagram ...............19
MEMORY FUNCTION : System Description ..........19
MEMORY FUNCTION : Component Parts Loca-
tion ..........................................................................
20
MEMORY FUNCTION : Component Description ....21
EXIT ASSIST FUNCTION ...................................... ....22
EXIT ASSIST FUNCTION : System Diagram .........22
EXIT ASSIST FUNCTION : System Description . ....22
EXIT ASSIST FUNCTION : Component Parts Lo-
cation ................................................................... ....
23
EXIT ASSIST FUNCTION :
Component Description ...................................... ....
24
ENTRY ASSIST FUNCTION .................................. ....24
ENTRY ASSIST FUNCTION : System Diagram .....25
ENTRY ASSIST FUNCTION : System Description
....
25
ENTRY ASSIST FUNCTION : Component Parts
Location ...................................................................
26
ENTRY ASSIST FUNCTION :
Component Description ..........................................
27
DIAGNOSIS SYSTEM (DRIVER SEAT C/U) ....28
Diagnosis Description ..............................................28
CONSULT-III Function ............................................28
COMPONENT DIAGNOSIS .........................31
U1000 CAN COMM CIRCUIT ...........................31
Description ........................................................... ....31
DTC Logic ................................................................31
Special Repair Requirement ....................................31
B2112 SLIDING MOTOR ..................................32
Description ...............................................................32
DTC Logic ................................................................32
Diagnosis Procedure ..............................................32
B2113 RECLINING MOTOR .............................33
Description ...............................................................33
DTC Logic ................................................................33
Diagnosis Procedure ..............................................33
B2114 SEAT LIFTER FR ..................................34
Description ...............................................................34
DTC Logic ................................................................34
Diagnosis Procedure ..............................................34
B2115 SEAT LIFTER RR ..................................35
Description ...............................................................35
Revision: April 20092010 QX56

ADP-34
< COMPONENT DIAGNOSIS >
B2114 SEAT LIFTER FR
B2114 SEAT LIFTER FR
DescriptionINFOID:0000000005147456
• The lifting motor (front) is installed to the power seat frame assembly.
• The lifting motor (front) is activated with the driver seat control unit.
• Tilts the seat front up/down by changing the rotation direction of lifting motor (front).
DTC LogicINFOID:0000000005147457
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1. STEP 1
Turn ignition switch ON.
>> GO TO 2
2. STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES >> Perform diagnosis procedure. Refer to ADP-34, "DiagnosisProcedure".
NO >> Inspection End.
NOTE:
First perform diagnosis for B2126 if B2126 is detected. Refer to ADP-42, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000005147458
1. PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT-III.
3. Erase the DTC.
4. Perform DTC confirmation procedure. Refer to ADP-34, "
DTC Logic".
Is the DTC displayed again?
YES >> GO TO 2
NO >> Check intermittent incident. Refer to GI-38, "
Intermittent Incident".
2. CHECK COMPONENTS
Refer to ADP-85, "
ComponentFunctionCheck" and ADP-101, "ComponentFunctionCheck".
>> Inspection End.
DTC No. Trouble diagnosis
name DTC detecting condition
Possible cause
B2114 SEAT LIFTER FR The driver seat control unit detects the output of lift-
ing motor (front) output te
rminal for 0.1 second or
more even if the lifting switch is not input. • Driver seat control unit
Revision: April 20092010 QX56

ADP-134
< ECU DIAGNOSIS >
DRIVER SEAT CONTROL UNIT
NOTE:
The front seat LH position and pedal adjustment functions (see the following table) operate simultaneously in
the order of priority.
*: In conjunction with sliding the seat, the door mirrors are positioned.
CANCEL OF FAIL-SAFE MODE
The mode is cancelled when the A/T selector lever is shifted to P position from any other position.
DTC IndexINFOID:0000000005147579
*1:
• 0: Current malfunction is present
• 1-39: Displayed if any previous malfunction is present when current condition is normal. The numeral value increases by one at each
IGN ON to OFF cycle from 1 to 39. The counter remains at 39 even if the number of cycles exceeds it. However, the counter is re set
to 1 if any malfunction is detected again, the normal operation is resumed and the ignition switch is turned from OFF to ON. OPERATED PORTION
T2
Seat sliding Approx. 0.1 sec.
Seat reclining Same as above
Seat lifting (Front) Same as above
Seat lifting (Rear) Same as above
Pedal adjust Same as above
Priority Function PriorityFunction
1 Seat sliding, (door mirro r LH/RH)* 4Seat lifter-FR
2 Pedal 5Seat lifter-RR
3 Seat reclining
CONSULT-III
display Timing
*1
Item
Reference page
Current mal-
function Previous mal-
function
CAN COMM CIRCUIT
[U1000] 0
1-39 CAN communication ADP-31
SEAT SLIDE
[B2112]0
1-39 Seat slide motor output ADP-32
SEAT RECLINING
[B2113]0
1-39 Seat reclin ing motor output ADP-33
SEAT LIFTER FRONT
[B2114] 0
1-39 Seat lifting motor front output ADP-36
SEAT LIFTER REAR
[B2115]0
1-39 Seat lifting motor rear output ADP-36
TILT MOTOR
[B2116]0
1-39 Tilt motor output ADP-105
ADJ PEDAL MOTOR
[B2117]0
1-39 Pedal adjusting motor output ADP-36
TILT SENSOR
[B2118]0
1-39 Tilt sensor input ADP-38
ADJ PEDAL SENSOR
[B2120]0
1-39 Pedal adjusting sensor input ADP-36
DETENT SW
[B2126]0
1-39 Park position switch condition ADP-42
UART COMM
[B2128]0
1-39 UART communication ADP-44
Revision: April 20092010 QX56