NISSAN X-TRAIL 2003 Service Repair Manual

NAVIGATION SYSTEM
AV-81
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GPS ROM
malfunction
GPS RAM
malfunctionContents of ROM (or RAM) in GPS substrate are malfunctioning.

Location detection accuracy of the navigation
system will deteriorate, depending on the mal-
functioning area in the memory, because GPS
cannot make correct positioning.
(Location correction using GPS is not per-
formed.)

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS RTC
malfunctionClock IC in GPS substrate is malfunctioning.

Correct time may not be displayed.

After the power is turned on, the system
always takes some time until GPS positioning
becomes possible. (The GPS receiver starts
positioning without re-collecting the whole sat-
ellite information when it judged the data
stored in the receiver is correct.)

Correct time of error occurrence may not be
stored in the ″History of Errors″.

Perform self-diagnosis.

When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS antenna
disconnectedMalfunctioning connection between GPS substrate in NAVI control
unit and GPS antenna.

Navigation location detection performance
has deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When connection between NAVI control unit and GPS antenna
is judged normal by self-diagnosis, the symptom may be inter-
mittent, caused by impact or vibration.
Low voltage
of GPSThe power voltage supplied to the GPS circuit board has
decreased.

Navigation location detection performance
has deteriorated.
(Location correction using GPS is not per-
formed.)

GPS receiving status remains gray.

Perform self-diagnosis.

When connection between NAVI control unit and GPS antenna
is judged normal by self-diagnosis, the symptom may be inter-
mittent, caused by impact or vibration.
DVD-ROM
Malfunction
DVD-ROM
Read error
DVD-ROM
Response
ErrorMalfunctioning NAVI control unit -
Dedicated map DVD-ROM is in the system, but the data cannot be
read.

The map of a particular location cannot be dis-
played.

Specific guidance information cannot be dis-
played.

Map display is slow.

Guidance information display is slow.

System has been affected by vibration.

Is map DVD-ROM damaged, warped, or dirty?
–If damaged or warped, the map DVD-ROM is malfunctioning.
–If dirty, wipe the DVD-ROM clean with a soft cloth.

Perform self-diagnosis.

When NAVI control unit is judged normal by self-diagnosis, the
symptom is judged intermittent, caused by vibration. Error itemPossible causes
Example of symptom
Action/symptom

AV-82
NAVIGATION SYSTEM

Power Supply and Ground Circuit Check for NAVI control unitEKS00F35
1. CHECK FUSE
Check that the following fuses of the NAVI control unit are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer toPG-2,
"POWER SUPPLY ROUTING" .
2. POWER SUPPLY CIRCUIT CHECK
Check voltage between NAVI control unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector.
3. Check continuity between NAVI control unit and ground.
OK or NG
OK >> INSPECTION END.
NG >> Repair or replace harness.
Te r m i n a l s
Power source Fuse No.
Connector Terminal (wire color)
NAVI control unit
M1162 (Y/G)
Battery 32
3 (Y/G)
6 (GY/L) Ignition switch ACC or ON 4
Terminals
OFF ACC ON (+)
(-)
ConnectorTerminal
(wire color)
NAVI control
unit
M1162 (Y/G)
GroundBattery
voltageBattery
voltageBattery
voltage
3 (Y/G)Battery
voltageBattery
voltageBattery
voltage
6 (GY/L) 0VBattery
voltageBattery
voltage
SKIA8719E
Terminals
Continuity (+)
(-)
Connector Terminal (wire color)
NAVI control unit
M1161 (B/R)
Ground Yes
4 (B/R)
SKIA8720E

NAVIGATION SYSTEM
AV-83
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Power Supply and Ground Circuit Check for DisplayEKS00F36
1. CHECK FUSE
Check that the following fuses of the display are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to PG-2,
"POWER SUPPLY ROUTING" .
2. POWER SUPPLY CIRCUIT CHECK
Check voltage between display and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Disconnect display connector.
3. Check continuity between display and ground.
OK or NG
OK >> INSPECTION END.
NG >> Repair or replace harness.
UnitTerminals
Power source Fuse No.
ConnectorTe r m i n a l
(wire color)
Display M11221 (Y/G)
Battery 32
23 (Y/G)
19 (GY/L) Ignition switch ACC or ON 4
UnitTerminals
OFF ACC ON (+)
(-)
ConnectorTerminal
(wire color)
Display M11221 (Y/G)
GroundBattery
voltageBattery
voltageBattery
voltage
23 (Y/G)Battery
voltageBattery
voltageBattery
voltage
19 (GY/L) 0VBattery
voltageBattery
voltage
SKIA9491E
UnitTerminals
Continuity (+)
(-)
ConnectorTerminal
(wire color)
Display M11222 (B/R)
Ground Yes
24 (B/R)
SKIA9492E

AV-84
NAVIGATION SYSTEM

Power Supply and Ground Circuit Check for NAVI SwitchEKS00F37
1. CHECK FUSE
Check 10A fuse [No.4, located in fuse block (J/B)].
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to PG-2,
"POWER SUPPLY ROUTING" .
2. POWER SUPPLY CIRCUIT CHECK
Check voltage between NAVI switch and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Disconnect NAVI switch connector.
3. Check continuity between NAVI switch harness connector M113
terminal 7 (B/R) and ground.
OK or NG
OK >> INSPECTION END.
NG >> Repair or replace harness.
UnitTerminals
OFF ACC ON (+)
(-)
ConnectorTe r m i n a l
(wire color)
NAVI
switchM113 1 (GY/L) Ground 0VBattery
voltageBattery
voltage
SKIA8724E
Continuity should exist.
SKIA8725E

NAVIGATION SYSTEM
AV-85
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Power Supply and Ground Circuit Check for Transfer unitEKS00F38
1. CHECK FUSE
Check that the following fuses of the transfer unit are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to PG-2,
"POWER SUPPLY ROUTING" .
2. POWER SUPPLY CIRCUIT CHECK
Check voltage between transfer unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Disconnect transfer unit connector.
3. Check continuity between transfer unit and ground.
OK or NG
OK >> INSPECTION END.
NG >> Repair or replace harness.
UnitTerminals
Power source Fuse No.
ConnectorTe r m i n a l
(wire color)
Transfer unit M11131 (Y/G)
Battery 32
32 (Y/G)
29 (GY/L) Ignition switch ACC or ON 4
UnitTerminals
OFF ACC ON (+)
(-)
ConnectorTerminal
(wire color)
Transfer
unitM 11131 (Y/G)
GroundBattery
voltageBattery
voltageBattery
voltage
32 (Y/G)Battery
voltageBattery
voltageBattery
voltage
29 (GY/L) 0VBattery
voltageBattery
voltage
SKIA9079E
UnitTerminals
Continuity (+)
(-)
ConnectorTerminal
(wire color)
Transfer unit M11125 (B/R)
Ground Yes
27 (B/R)
SKIA9081E

AV-86
NAVIGATION SYSTEM

Communication Line Check (Between Display and NAVI switch) EKS00F39
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
1. Check system of power supply and ground circuit display. Refer to AV- 8 3 , "
Power Supply and Ground Cir-
cuit Check for Display" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display connector and NAVI switch connector.
3. Check continuity between display harness connector M112 ter-
minal 15 (R) and NAVI switch harness connector M113 terminal
4 (R).
4. Check continuity between display harness connector M112 ter-
minal 15 (R) and ground.
OK or NG
OK >> Replace display.
NG >> Repair harness or connector.
Communication Line Check (Between NAVI Switch and Transfer Unit)EKS00F3A
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
1. Check system of power supply and ground circuit NAVI switch. Refer to AV- 8 4 , "
Power Supply and
Ground Circuit Check for NAVI Switch" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI switch connector and transfer unit connector.
3. Check continuity between NAVI switch harness connector M113
terminal 5 (G), 6 and transfer unit harness connector M111 ter-
minal 18 (G), 15.
4. Check continuity between NAVI switch harness connector M113
tereminal 5 (G), 6 and ground.
OK or NG
OK >> Replace NAVI switch.
NG >> Repair harness or connector.15 (R) - 4 (R) Continuity should exist.
15 (R) - Ground Continuity should not exist.
SKIA9222E
5 (G) - 18 (G) Continuity should exist.
6 - 15 Continuity should exist.
5 (G), 6 - Ground Continuity should not exist.
SKIA9223E

NAVIGATION SYSTEM
AV-87
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Communication Line Check (Between NAVI Control Unit and Transfer Unit) EKS00F3B
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
1. Check system of power supply and ground circuit NAVI control unit. Refer to AV- 8 2 , "
Power Supply and
Ground Circuit 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 and transfer unit connector.
3. Check continuity between and NAVI control unit harness con-
nector M117 terminal 43, 44 * , 45 (Y) and transfer unit harness
connector M111 terminal 9, 11*, 13 (Y).

* : LHD model (BR) , RHD model (R/L).
4. Check continuity between NAVI control unit harness connector
M117 terminal 43, 44* , 45 (Y) and ground.

* : LHD model (BR) , RHD model (R/L).
OK or NG
OK >> Replace NAVI control unit.
NG >> Repair harness or connector.43 - 9 Continuity should exist.
44* - 11* Continuity should exist.
45 (Y) - 13 (Y) Continuity should exist.
43, 44*, 45 (Y) - ground Continuity should not
exist.
SKIA9224E

AV-88
NAVIGATION SYSTEM

Communication Line Check (Between Transfer Unit and Display) EKS00F3C
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
1. Check system of power supply and ground circuit transfer unit. Refer to AV- 8 5 , "
Power Supply and
Ground Circuit Check for Transfer unit" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect transfer unit connector and display connector.
3. Check continuity between transfer unit harness connector M111
terminal 19, 20 (L) and display harness connector M112 terminal
17, 16 (L).
4. Check continuity between transfer unit harness connector M111
tereminal 19, 20 (R/L) and ground.
OK or NG
OK >> Replace transfer unit.
NG >> Repair harness or connector.19 - 17 Continuity should exist.
20 (L) - 16 (L) Continuity should exist.
19, 20 (L) - ground Continuity should not exist.
SKIA9225E

NAVIGATION SYSTEM
AV-89
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Vehicle Speed Signal CheckEKS00F3D
1. VEHICLE SPEED OPERATION CHECK
Does speedometer is operated normally?
Ye s o r N o
Ye s > > G O T O 2 .
No >> Check combination meter trouble diagnosis. Refer to DI-26, "
Vehicle Speed Signal Inspection
[with ESP]" in “COMBINATION METERS”.
2. HARNESS CHECK
1. Turn the ignition switch OFF.
2. Disconnect NAVI control unit connector and combination meter connector.
3. Check continuity between NAVI control unit harness connector
M117 terminal 28 (LG) and Unified meter control unit harness
connector M44 terminal 11 (LG).
4. Check continuity between NAVI control unit harness connector
M117 terminal 28 (LG) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. VEHICLE SPEED SIGNAL CHECK
1. Connect NAVI control unit and combination meter connector.
2. Start engine and drive vehicle at more than 40 km/h (25MPH).
3. Check the signal between NAVI control unit harness connector
M117 terminal 28 (LG) and ground with CONSULT-ll or oscillo-
scope.
OK or NG
OK >> Replace NAVI control unit.
NG >> Check combination meter system. Refer to DI-20, "
Diagnosis Flow" in “COMBINATION
METERS”. 28 (LG)-11 (LG) Continuity should exist.
28 (LG) - Ground Continuity should not
exist.
SKIA9105E
28(LG )– Ground : Refer to AV- 6 5 , "Terminals and
Reference Value for NAVI Control
unit" .
SKIA9106E

AV-90
NAVIGATION SYSTEM

Illumination Signal CheckEKS00F3E
1. TAIL LAMP OPERATION CHECK
When lighting switch turned 1st or 2nd position, does tail lamp illuminate?
Ye s o r N o
Yes >> GO TO 2.
No >> Go to tail lamp trouble diagnosis.
2. ILLUMINATION SIGNAL CHECK
Check voltage between NAVI control unit and ground.
OK or NG
OK >> Replace NAVI control unit.
NG >> Repair harness or connector.
Ignition Signal CheckEKS00F3F
1. IGNITION SIGNAL CHECK
1. Turn the ignition switch ON.
2. Check voltage between NAVI control unit harness connector
M117 terminal 26 (G) and ground.
OK or NG
OK >> Replace NAVI control unit.
NG >> Check the following.

10A fuse [No.5, located in fuse block (J/B)]

Harness for open or short between NAVI control unit
and fuse
Te r m i n a l s
Lighting switch
positionVoltage (+)
(–)
ConnectorTerminal
(wire color)
M117 25 (R/L) Ground1st or 2nd
positionBattery voltage
OFF Approx. 0V
SKIA9107E
26 (G)- Ground :Battery voltage .
SKIA9108E