Nissan Pathfinder (2006 year). Instruction — part 79
NAVIGATION SYSTEM
AV-123
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AV
2006 Pathfinder
Vehicle Speed Signal Check for NAVI Control Unit
EKS00HKI
1.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect NAVI control unit connector B152, combination
meter connector M24 and display control unit connector M94.
3.
Check continuity between NAVI control unit harness connector
B152 (B) terminal 66 and combination meter harness connector
M24 (A) terminal 29.
4.
Check continuity between NAVI control unit harness connector
B152 (B) terminal 66 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness.
2.
CHECK 1: VEHICLE SPEED SIGNAL
1.
Connect NAVI control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between NAVI control unit harness connector
B152 terminal 66 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Replace NAVI control unit. Refer to
3.
CHECK 2: VEHICLE SPEED SIGNAL
1.
Connect combination meter connector and display control unit
connector.
2.
Drive vehicle at a constant speed.
3.
Check signal between NAVI control unit harness connector
B152 terminal 66 and ground with CONSULT-ll or oscilloscope.
OK or NG
OK
>> Replace NAVI control unit. Refer to
NG
>> Check combination meter system. Refer to
DI-21, "Vehicle Speed Signal Inspection"
Continuity should exist.
Continuity should not exist.
WKIA4445E
Approx. 3.5V or more
WKIA4209E
66 - Ground
: Refer to
and Reference Value for NAVI
Control Unit"
WKIA4210E
AV-124
NAVIGATION SYSTEM
2006 Pathfinder
Vehicle Speed Signal Check for Display Control Unit
EKS00HKJ
1.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect display control unit connector M94, combination meter connector M24, NAVI control unit con-
nector B152.
3.
Check continuity between display control unit harness connector
M94 terminal 16 and combination meter harness connector M24
terminal 6.
4.
Check continuity between display control unit harness connector
M94 terminal 16 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness.
2.
CHECK 1: VEHICLE SPEED SIGNAL
1.
Connect display control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between display control unit harness connector
M94 terminal 16 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Replace display control unit. Refer to
3.
CHECK 2: VEHICLE SPEED SIGNAL
1.
Connect combination meter connector and NAVI control unit connector.
2.
Drive vehicle at a constant speed.
3.
Check signal between display control unit harness connector
M94 terminal 16 and ground with CONSULT-II or oscilloscope.
OK or NG
OK
>> Replace display control unit. Refer to
NG
>> Check combination meter system. Refer to
Continuity should exist.
Continuity should not exist.
WKIA3255E
Approx. 3.5V or more
SKIA4297E
16 - Ground
: Refer to
and Reference Value for Dis-
play Control Unit"
.
SKIA4616E
NAVIGATION SYSTEM
AV-125
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AV
2006 Pathfinder
Illumination Signal Check for NAVI Control Unit
EKS00HKK
1.
CHECK ILLUMINATION SIGNAL
1.
Turn the ignition switch ON.
2.
Check voltage between NAVI control unit and ground.
OK or NG
OK
>> Replace NAVI control unit. Refer to
NG
>> Check harness for open or short between NAVI control unit and IPDM E/R.
Illumination Signal Check for Display Control Unit
EKS00HKL
1.
CHECK ILLUMINATION SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between display control unit and ground.
OK or NG
OK
>> Replace display control unit. Refer to
.
NG
>> Check harness for open or short between display control unit and IPDM E/R.
Ignition Signal Check for NAVI Control Unit
EKS00HKM
1.
CHECK IGNITION SIGNAL
1.
Disconnect NAVI control unit connector B152.
2.
Turn ignition switch ON.
3.
Check voltage between NAVI control unit harness connector
B152 terminal 63 and ground.
OK or NG
OK
>> Replace NAVI control unit. Refer to
NG
>> Check harness for open or short between NAVI control
unit and fuse.
Terminals
Lighting switch position
(+)
(–)
Connector
Terminal
1st or 2nd
position
OFF
B152
61 Ground
Battery
voltage
Approx. 0V
WKIA4211E
Terminals
Lighting switch position
(+)
(–)
Connector
Terminal
1st or 2nd
position
OFF
M94
14
Ground
Battery
voltage
Approx. 0V
SKIA4299E
Battery voltage should exist.
WKIA4212E
AV-126
NAVIGATION SYSTEM
2006 Pathfinder
Ignition Signal Check for Display Control Unit
EKS00HKN
1.
CHECK IGNITION SIGNAL
1.
Disconnect display control unit connector M94.
2.
Turn ignition switch ON.
3.
Check voltage between display control unit harness connector
M94 terminal 12 and ground.
OK or NG
OK
>> Replace display control unit. Refer to
NG
>> Check harness for open or short between display con-
trol unit and fuse.
Reverse Signal Check for NAVI Control Unit
EKS00HKO
1.
CHECK REVERSE LAMP
1.
Turn ignition switch ON.
2.
Place A/T selector lever into R-position. Do back-up lamps come on?
YES or NO
YES
>> GO TO 2.
NO
>> Check back-up lamp system. Refer to
.
2.
CHECK REVERSE SIGNAL
1.
Disconnect NAVI control unit connector B152.
2.
Turn ignition switch ON.
3.
With the A/T selector lever in R-position, check voltage between
NAVI control unit and ground.
OK or NG
OK
>> Replace NAVI control unit. Refer to
NG
>> Check harness for open or short between NAVI control unit and back-up lamp position relay.
Reverse Signal Check for Display Control Unit
EKS00HKP
1.
CHECK REVERSE LAMP
1.
Turn ignition switch ON.
2.
Place selector lever into R-position. Do back-up lamps come on?
YES or NO
YES
>> GO TO 2.
NO
>> Check back-up lamp system. Refer to
.
Battery voltage should exist.
WKIA1230E
Terminals
Selector lever position
(+)
(–)
Connector
Terminal
R-position
Other than R-
position
B152
65
Ground
Battery voltage
Approx. 0V
WKIA4213E
NAVIGATION SYSTEM
AV-127
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AV
2006 Pathfinder
2.
CHECK REVERSE SIGNAL
1.
Disconnect display control unit connector M94.
2.
Turn ignition switch ON.
3.
With the selector lever in R-position, check voltage between dis-
play control unit and ground.
OK or NG
OK
>> Replace display control unit. Refer to
.
NG
>> Check harness for open or short between display control unit and back-up lamp position relay.
AV Communication Line Check (Between Display Control Unit and NAVI Control
Unit)
EKS00HKQ
1.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit for NAVI control unit. Refer to
AV-118, "Power Supply and Ground Cir-
cuit Check for NAVI Control Unit"
OK or NG
OK
>> GO TO 2.
NG
>> Check the malfunctioning parts.
2.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect NAVI control unit connector B152 and display control unit connector M95.
3.
Check continuity between NAVI control unit and display control unit.
4.
Check continuity between NAVI control unit and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness or connector.
Terminals
Selector lever position
(+)
(–)
Connector
Terminal
R-position
Other than
R-position
M94
6
Ground
Battery voltage
Approx. 0V
SKIA4303E
Terminals
Continuity
B
A
Connector
Terminal
Connector
Terminal
NAVI control
unit: B152
69
Display con-
trol unit: M95
32
Yes
70
34
Terminals
Continuity
B
—
Connector
Terminal
NAVI control unit:
B152
69
Ground
No
70
WKIA4214E
AV-128
NAVIGATION SYSTEM
2006 Pathfinder
3.
CHECK SELF-DIAGNOSIS OF DCU
1.
Replace NAVI control unit.
2.
Connect NAVI control unit connector and display control unit connector.
3.
Turn ignition switch ON.
4.
Start self-diagnosis of DCU and check the self-diagnosis result.
OK or NG
OK
>> Inspection End.
NG
>> Replace display control unit. Refer to
AV-161, "DISPLAY CONTROL UNIT"
.
Audio Communication Line Check (Between Display Control Unit and Audio
Unit)
EKS00HKR
1.
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.
Check power supply and ground circuit for audio unit. Refer to
AV-37, "Power Supply Circuit Inspection"
.
OK or NG
OK
>> GO TO 2.
NG
>> Check the malfunctioning parts.
2.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect audio unit connector M45 and display control unit connector M95.
3.
Check continuity between audio unit and display control unit.
4.
Check continuity between display control unit and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness or connector.
3.
CHECK 1: AUDIO-TX COMMUNICATION SIGNAL
1.
Connect display control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between display control unit harness connector
M95 terminal 42 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Replace display control unit. Refer to
Terminals
Continuity
Display control unit
Audio unit
Connector
Terminal
Connector
Terminal
M95
40
M45
65
Yes
42
66
Terminals
Continuity
Display control unit
—
Connector
Terminal
M95
40
Ground
No
42
WKIA1192E
Approx. 3.5V or more.
WKIA1770E
NAVIGATION SYSTEM
AV-129
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AV
2006 Pathfinder
4.
CHECK 2: AUDIO-RX COMMUNICATION SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect display control unit connector M95.
3.
Connect audio unit connector M45.
4.
Turn ignition switch ON.
5.
Check voltage between audio unit harness connector M45 ter-
minal 65 and ground.
OK or NG
OK
>> GO TO 5.
NG
>> Replace audio unit. Refer to
5.
CHECK 3: AUDIO-TX COMMUNICATION SIGNAL
1.
Turn ignition switch OFF.
2.
Connect display control unit connector M95.
3.
Turn ignition switch ON.
4.
Check signal between display control unit harness connector
M95 terminal 40 and ground with CONSULT-ll or oscilloscope.
OK or NG
OK
>> GO TO 6.
NG
>> Replace display control unit. Refer to
AV-161, "DISPLAY CONTROL UNIT"
6.
CHECK 4: AUDIO-RX COMMUNICATION SIGNAL
1.
Turn ignition switch ON.
2.
Check signal between display control unit harness connector
M95 terminal 42 and ground with CONSULT-ll or oscilloscope.
OK or NG
OK
>> Inspection End.
NG
>> Replace audio unit. Refer to
Approx. 3.5V or more.
WKIA1771E
40 - Ground
: Refer to
and Reference Value for Dis-
play Control Unit"
SKIA4447E
42 - Ground
: Refer to
and Reference Value for Dis-
play Control Unit"
SKIA4448E
AV-130
NAVIGATION SYSTEM
2006 Pathfinder
Display Communication Line Check (Between Display Control Unit and Display
Unit)
EKS00HKS
1.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector M93 and display control unit connector M95.
3.
Check continuity between display control unit and display unit.
4.
Check continuity between display control unit and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness or connector.
2.
CHECK 1: COMMUNICATION SIGNAL (DCU–DSP)
1.
Connect display unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between display unit harness connector M93 ter-
minal 11 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Replace display unit. Refer to
.
3.
CHECK 2: COMMUNICATION SIGNAL (DSP–DCU)
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector M93.
3.
Connect display control unit connector.
4.
Turn ignition switch ON.
5.
Check voltage between display control unit harness connector
M95 terminal 38 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Replace display control unit. Refer to
Terminals
Continuity
Display control unit
Display unit
Connector
Terminal
Connector
Terminal
M95
36
M93
11
Yes
38
22
Terminals
Continuity
Display control unit
—
Connector
Terminal
M95
36
Ground
No
38
WKIA2019E
Approx. 3.5V or more.
WKIA1377E
Approx. 3.5V or more.
SKIA4453E
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