Nissan Pathfinder (2012 year). Instruction — part 69
AV-370
< DTC/CIRCUIT DIAGNOSIS >
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REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT
REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000007347926
Rear view camera signals are transmitted from the rear view camera to the display unit using the camera sig-
nal circuits.
Diagnosis Procedure
INFOID:0000000007347927
Regarding Wiring Diagram information, refer to
AV-385, "Wiring Diagram - With Navigation System"
.
1.
CHECK CAMERA IMAGE SIGNAL CIRCUIT CONTINUITY
NOTE:
Apply parking brakes before proceeding.
1. Turn ignition switch OFF.
2. Disconnect display unit connector M92 and rear view camera connector D551.
3. Check continuity between display unit harness connector M92 terminals 12, 14, 24 and rear view camera
harness connector D551 terminals 3, 5 and 6.
4. Check continuity between display unit harness connector M92 terminals 14, 12, 24 and ground.
Is inspection result OK?
YES
>> GO TO 2
NO
>> Repair harness or connector.
2.
CHECK CAMERA IMAGE SIGNAL
1. Connect display unit connector M92 and rear view camera connector D551.
2. Turn ignition switch ON.
3. Shift transmission into reverse.
4. Check signal between display unit harness connector M92 terminals 12 and 14.
Is inspection result OK?
YES
>> Replace display unit. Refer to
AV-422, "Removal and Installation"
NO
>> Replace rear view camera. Refer to
AV-438, "Removal and Installation"
.
12 - 6
: Continuity should exist.
14 - 5
: Continuity should exist.
24 - 3
: Continuity should exist.
12, 14, 24 - Ground
: Continuity should not exist.
12 - 14
:
SKIB2251J
August 2012
2012 Pathfinder
AV
AV CONTROL UNIT
AV-371
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ECU DIAGNOSIS INFORMATION
AV CONTROL UNIT
Reference Value
INFOID:0000000007347928
VALUES ON THE DIAGNOSIS TOOL
CONSULT data monitor item
TERMINAL LAYOUT
PHYSICAL VALUES
Display Item
Dis-
play
Vehicle status
Remarks
VHCL SPD SIG
ON
Vehicle speed >0 km/h (0 MPH)
Changes in indication may be delayed. This is
normal.
OFF
Vehicle speed =0 km/h (0 MPH)
PKB SIG
ON
Parking brake is applied.
Changes in indication may be delayed. This is
normal.
OFF
Parking brake is released.
ILLUM SIG
ON
Block the light beam from the auto
light optical sensor when the light
SW is ON.
—
OFF
Expose the auto light optical sensor
to light when the light SW is OFF or
ON.
IGN SIG
ON
Ignition switch ON
—
OFF
Ignition switch in ACC position
REV SIG
ON
Selector lever in R position
Changes in indication may be delayed. This is
normal.
OFF
Selector lever in any position other
than R
AWNIA0148ZZ
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
1
(SB)
Ground Amp. ON signal
Output
Ignition
switch
ON
—
Battery voltage
2
(BR)
3
(B)
Pre-amp. audio signal front
LH
Output
Ignition
switch
ON
Audio output
SKIB3609E
August 2012
2012 Pathfinder
AV-372
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AV CONTROL UNIT
4
(BR/W)
5
(BR/Y)
Pre-amp. audio signal rear
LH
Output
Ignition
switch
ON
Audio output
6
(Y)
15
(L)
Steering switch signal A
Input
Ignition
switch
ON
Pressing
switch
0V
Pressing
switch
0.75V
Pressing VOL up switch
2V
Except for above
5V
7
(G/Y)
Ground ACC power supply
Input
Ignition
switch
ACC
−
Battery voltage
9
(V)
Ground Illumination signal
Input
Ignition
switch
OFF
Lighting switch is OFF.
0V
Lighting switch is ON.
Battery voltage
11
(G/Y)
12
(G/O)
Pre-amp. audio signal front
RH
Output
Ignition
switch
ON
Audio output
13
(G/R)
14
(B)
Audio signal rear RH
Output
Ignition
switch
ON
Audio output
15
(L)
Ground
Steering switch signal
ground
—
Ignition
switch
ON
—
0V
16
(G)
15
(L)
Steering switch signal B
Input
Ignition
switch
ON
Pressing
switch
0V
Pressing
switch
0.75V
Pressing VOL down switch
2V
Except for above
5V
19
(Y)
Ground Battery power supply
Input
Ignition
switch
OFF
—
Battery voltage
20
(B)
Ground Ground
—
Ignition
switch
ON
—
0V
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3609E
SKIB3609E
SKIB3609E
August 2012
2012 Pathfinder
AV
AV CONTROL UNIT
AV-373
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21
(L)
Ground RGB signal (R: red)
Output
Ignition
switch
ON
Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
22
(G)
Ground RGB signal (G: green)
Output
Ignition
switch
ON
Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
23
(Y)
Ground RGB signal (B: blue)
Output
Ignition
switch
ON
Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
25
(R)
Ground RGB synchronizing signal
Output
Ignition
switch
ON
—
27
(G)
Ground RGB area (YS) signal
Output
Ignition
switch
ON
At RGB image displayed
5V
At rear view camera image
displayed
28
(B)
Ground
Horizontal synchronizing
(HP) signal
Input
Ignition
switch
ON
—
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB2238J
SKIB2236J
SKIB2237J
SKIB3603E
PKIB4948J
SKIB3601E
August 2012
2012 Pathfinder
AV-374
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AV CONTROL UNIT
29
(W)
Ground
Vertical synchronizing (VP)
signal
Input
Ignition
switch
On
—
30
(V)
Ground
Communication signal
(CONT
→
DISP)
Output
Ignition
switch
ON
When adjusting display
brightness
31
(LG)
Ground
Communication signal
(DISP
→
CONT)
Input
Ignition
switch
ON
When adjusting display
brightness
34
—
Antenna main
—
—
—
—
35
—
Antenna B+
—
—
—
—
42
(W)
58
(B)
DVD audio signal LH
Input
Ignition
switch
ON
When DVD player is oper-
ating
43
(R)
59
(G)
DVD audio signal RH
Input
Ignition
switch
ON
When DVD player is oper-
ating
48
(SB)
Ground CD/DVD eject signal
Input
—
Pressing the eject switch
0V
Except for above
3.3V
50
(B)
51
(R)
AUX jack audio signal LH
Input
Ignition
switch
ON
When AUX mode is select-
ed
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3598E
PKIB5039J
PKIB5039J
SKIB3609E
SKIB3609E
SKIB3609E
August 2012
2012 Pathfinder
AV
AV CONTROL UNIT
AV-375
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61
(G)
45
(W)
Headphone LH audio sig-
nal
Output
Ignition
switch
ON
When DVD player is oper-
ating
62
(R)
46
(B)
Headphone RH audio sig-
nal
Output
Ignition
switch
ON
When DVD player is oper-
ating
65
(GR)
Ground
A/C and AV switch assem-
bly ground
—
Ignition
switch
ON
—
0V
66
(W)
51
(R)
AUX jack audio signal RH
Input
Ignition
switch
ON
When AUX mode is select-
ed
68
(B)
Ground Ground
—
Ignition
switch
ON
—
0V
69
(R/B)
Ground Battery power supply
Input
Ignition
switch
OFF
—
Battery voltage
70
(B)
Ground Ground
—
Ignition
switch
ON
—
0V
71
(R/B)
Ground Battery power supply
Input
Ignition
switch
OFF
—
Battery voltage
72
(G/Y)
Ground ACC power supply
Input
Ignition
switch
ACC
—
Battery voltage
73
(G)
Ground MIC power
Output
Ignition
switch
ON
—
5V
74
—
Shield
—
—
—
—
75
(R)
—
MIC signal
Input
Ignition
switch
ON
—
—
76
—
Shield
—
—
—
—
82
(W/G)
Ground
IGN ON or START power
supply
Input
Ignition
switch
ON or
START
—
Battery voltage
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3609E
SKIB3609E
SKIB3609E
August 2012
2012 Pathfinder
AV-376
< ECU DIAGNOSIS INFORMATION >
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AV CONTROL UNIT
DTC Index
INFOID:0000000007347929
Self-diagnosis results display item
83
(G)
Ground Parking brake signal
Input
Ignition
switch
ON
Parking brake ON
0V
Parking brake OFF
Battery voltage
84
(W)
Ground Reverse signal
Input
Ignition
switch
ON
R position
Battery voltage
Other than R position
0V
85
(LG)
Ground
Vehicle speed signal (8-
pulse)
Input
Ignition
switch
ON
When vehicle speed is ap-
prox. 40 km/h (25MPH)
87
(B)
—
Ground
Input
—
—
0V
89
(B)
—
Ground
Input
—
—
0V
90
(B)
—
Ground
Input
—
—
0V
95
(L)
—
AV communication signal 2
(H)
Input/
Output
—
—
—
96
(P)
—
AV communication signal 2
(L)
Input/
Output
—
—
—
97
(L)
—
AV communication signal 1
(H)
Input/
Output
—
—
—
98
(P)
—
AV communication signal 1
(L)
Input/
Output
—
—
—
99
(L)
—
CAN–H
Input/
Output
—
—
—
100
(P)
—
CAN–L
Input/
Output
—
—
—
108
—
Satellite antenna signal
Input
—
—
—
109
—
GPS antenna
Input
—
—
—
110
—
GPS antenna
Input
—
—
—
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIA6649J
Error item
Refer to
CAN COMM CIRCUIT [U1000]
CONTROL UNIT (CAN) [U1010]
Control Unit FLASH-ROM [U1200]
Gyro NO CONN [U1201]
CAN CONT [U1216]
BLUETOOTH CONN [U1217]
HDD CONN [U1218]
HDD READ [U1219]
August 2012
2012 Pathfinder
AV
AV CONTROL UNIT
AV-377
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XM SERIAL COMM [U1220]
HDD WRITE [U121A]
HDD COMM [U121B]
HDD ACCESS [U121C]
DSP CONN [U121D]
DSP COMM [U121E]
INTERNAL COMM [U121F]
GPS COMM [U1204]
GPS ROM [U1205]
GPS RAM [U1206]
GPS RTC [U1207]
FRONT DISP CONN [U1243]
GPS ANTENNA CONN [U1244]
XM ANTENNA CONN [U1258]
AV COMM CIRCUIT [U1300]
CONTROL UNIT (AV) [U1310]
Error item
Refer to
August 2012
2012 Pathfinder
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