NISSAN PATROL 2004 Electronic Repair Manual

2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect transfer unit connector and display connector.
3. Check continuity between transfer unit harness connector M173 terminals 19, 20 (B) and display harness connectorM112 terminals 17, 16 (B).
SKIA9225E
19 - 17 Continuity should exist.
20 (B) - 16 (B) Continuity should exist.
4. Check continuity between transfer unit harness connector M173 terminals 19, 20 (B) and ground. 19, 20 (B) - Ground Continuity should not exist. OK or NG
OK ©Replace transfer unit.
NG ©Repair harness or connector.
VEHICLE SPEED SIGNAL CHECK
1. CHECK VEHICLE SPEED OPERATION
Does speedometer is operated normally?
YesorNo
Ye s ©GO TO 2.
No ©Check combination meter.
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and combination meter connector.
3. Check continuity between NAVI control unit harness connector M168 terminal 28 (R/W) and Uni®ed meter control unit
harness connector M143 terminal 64 (R/W).
PKIB0549E
28 (R/W) - 64 (R/W) Continuity should exist.
4. Check continuity between NAVI control unit harness connector M168 terminal 28 (R/W) and ground. 28 (R/W) - Ground Continuity should not exist. OK or NG
OK ©GO TO 3.
NG ©Repair harness or connector.
NAVIGATION SYSTEM
Trouble Diagnoses (Cont'd)
EL-4206

3. CHECK VEHICLE SPEED SIGNAL
1. Connect NAVI control unit and combination meter connector.
2. Start engine and drive vehicle at more than 40 km/h (25 MPH).
3. Check the signal between NAVI control unit harness connector M168 terminal 28 (R/W) and ground with CONSULT-ll oroscilloscope.
SKIA9106E
28 (R/W) - Ground: Refer to EL-4183. OK or NG
OK ©Replace NAVI control unit.
NG ©Replace uni®ed meter control unit.
ILLUMINATION SIGNAL CHECK
1. CHECK TAIL LAMP OPERATION
When lighting switch turned 1st or 2nd position, does tail lamp illuminate?
YesorNo
Ye s ©GO TO 2.
No ©Go to tail lamp trouble diagnosis.
2. CHECK ILLUMINATION SIGNAL
Check voltage between NAVI control unit and ground.
SKIB0315E
OK or NG
OK ©Replace NAVI control unit.
NG ©Repair harness or connector.
Terminals
Lighting switch position Voltage
(+)
(þ)
Connector Terminal (wire color)
M168 25 (L/B) Ground 1st or 2nd position Battery voltage
OFF Approx. 0V
NAVIGATION SYSTEM
Trouble Diagnoses (Cont'd)
EL-4207

IGNITION SIGNAL CHECK
1. CHECK IGNITION SIGNAL
1. Turn ignition switch ON.
2. Check voltage between NAVI control unit harness connector M168 terminal 26 (R/W) and ground.
SKIA9108E
26 (R/W) - Ground: Battery voltageOK or NG
OK ©Replace NAVI control unit.
NG ©Check the following.
+10A fuse [No. 28, located in fuse block (J/B)]
+ Harness for open or short between NAVI control unit and fuse
REVERSE SIGNAL CHECK
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
Ð With the A/T selector lever in R position, does ªRº in the shift position indicator turned on? (With A/T)
Ð With the shift lever in R position. Are reverse lamps turned on? (With M/T)
YesorNo
Ye s ©GO TO 2.
No ©Check ªBACK-UP LAMPº system.
NAVIGATION SYSTEM
Trouble Diagnoses (Cont'd)
EL-4208

2. CHECK REVERSE SIGNAL
+Shift the A/T selector lever in R position. (With A/T)
+ Shift the shift lever in R position. (With M/T)
Ð Check voltage between NAVI control unit and ground.
SKIA8728E
OK or NG
OK ©Replace NAVI control unit.
NG ©Check the following.
+Harness for open or short between NAVI control unit and park/neutral position switch
(A/T models)
+ Harness for open or short between NAVI control unit and back-up lamp switch (M/T
models)
Terminals
A/T selector lever position Voltage (V)
(+)
(þ)
Connector Terminal (wire color)
M168 27 (Y) Ground R position Battery voltage
Other than R position Approx. 0
COLOR OF RGB IMAGE IS NOT PROPER
1. CHECK COLOR BAR DIAGNOSIS
Check color tone by ªSCREEN ADJUSTMENTº of CONFIRMATION/ADJUSTMENT function. OK or NG
OK ©INSPECTION END
NG ©GO TO 2.
NAVIGATION SYSTEM
Trouble Diagnoses (Cont'd)
EL-4209

2. CHECK RGB HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and display connector.
3. Check continuity with the following.
+When the screen looks bluish
PKIB0550E
+When the screen looks reddish
PKIB0551E
+When the screen looks yellowish
PKIB0552E
OK or NG
OK ©GO TO 3.
NG ©Repair harness or connector.
Terminals
Continuity
NAVI control unit Display
Connector Terminal
(wire color) Connector Terminal
(wire color)
M167 18 (R)
M1701 (R)
Ye s
17 4
Terminals Continuity
Connector Terminal (wire color) Ð
M167 18 (R)
Ground No
17
Terminals
Continuity
NAVI control unit Display
Connector Terminal
(wire color) Connector Terminal
(wire color)
M167 21 (G)
M1702 (G)
Ye s
17 4
Terminals Continuity
Connector Terminal (wire color) Ð
M167 21 (G)
Ground No
17
Terminals
Continuity
NAVI control unit Display
Connector Terminal
(wire color) Connector Terminal
(wire color)
M167 15 (B)
M170 3 (B)
Ye s
17 4
Terminals Continuity
Connector Terminal (wire color) Ð
M167 15 (B)
Ground No
17
NAVIGATION SYSTEM
Trouble Diagnoses (Cont'd)
EL-4210

3. CHECK RGB SIGNAL
1. Connect NAVI control unit connector and display connector.
PKIB0553E
2. Turn ignition switch ON.
3. Display ªColor barº by ªCONFIRMATION/ADJUSTMENTº mode.
4. Check the following with CONSULT-ll or oscilloscope.
+When the screen looks bluish.
Voltage signal between NAVI control unit connector M167 terminal 18 (R) and 17.
18 (BR) - 19: Refer to EL-4183.
+ When the screen looks reddish.
Voltage signal between NAVI control unit connector M167 terminal 21 (G) and 17.
21 (W) - 19: Refer to EL-4183.
+ When the screen looks yellowish.
Voltage signal between NAVI control unit connector M167 terminal 15 (B) and 17.
15 (R) - 19: Refer to EL-4183. OK or NG
OK ©Replace display.
NG ©Replace NAVI control unit.
RGB SCREEN IS NOT SHOWN
1. CHECK HARNESS
1. Turn ignition switch OFF.
PKIB0554E
2. Disconnect NAVI control unit connector and display connector.
3. Check continuity between NAVI control unit harness connector M167 terminals 12 (R), 17 and display harness connec-
tor M170 terminals 8 (R), 4.12 (R) - 8 (R) Continuity should exist.
17 - 4 Continuity should exist.
4. Check continuity between NAVI control unit harness connector M167 terminals 12 (R), 17 and ground. 12 (R), 17 - Ground Continuity should not exist. OK or NG
OK ©GO TO 2.
NG ©Repair harness or connector.
NAVIGATION SYSTEM
Trouble Diagnoses (Cont'd)
EL-4211

2. CHECK RGB AREA SIGNAL
1. Connect NAVI control unit connector and display connector.
2. Turn ignition switch ON.
3. Push ªINFOº switch.
4. Check the signal between NAVI control unit connector M167 terminals 12 (R) and 17 with CONSULT-ll or oscilloscope.
PKIB0555E
12 (R) - 17: Refer to EL-4183.OK or NG
OK ©Replace display.
NG ©Replace NAVI control unit.
RGB SCREEN IS ROLLING
1. CHECK RGB SYNCHRONIZING CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and display connector.
3. Check continuity between NAVI control unit harness connector M167 terminals 16 (W), 17 and display harness connec-
tor M170 terminals 7 (W), 4.
PKIB0556E
16 (W) - 7 (W) Continuity should exist.
17 - 4 Continuity should exist.
4. Check continuity between NAVI control unit harness connector M167 terminals 16 (W), 17 and ground. 16 (W), 17 - Ground Continuity should not exist. OK or NG
OK ©GO TO 2.
NG ©Repair harness or connector.
NAVIGATION SYSTEM
Trouble Diagnoses (Cont'd)
EL-4212

2. CHECK RGB SYNCHRONIZING SIGNAL
1. Connect NAVI control unit connector and display connector.
2. Turn ignition switch ON.
3. Push the ªMAPº switch.
4. Check the signal between NAVI control unit harness connector M167 terminals 16 (W) and 17 with CONSULT-ll oroscilloscope.
PKIB0557E
16 (W) - 19: Refer to EL-4183. OK or NG
OK ©Replace display.
NG ©Replace NAVI control unit.
GUIDE SOUND IS NOT HEARD
1. CHECK VOICE GUIDE SETTING
+While driving in the dark pink route, voice guide does not operate.
NOTE:
Voice guide is only available at intersections that satisfy certain conditions (indicated by +on the map).
Therefore, guidance may not be given even when the route on the map changes direction.
+ Is volume setting not switched ON?
YesorNo
Ye s ©GO TO 2.
No ©Switch the setting ON and turn the volume up.
NAVIGATION SYSTEM
Trouble Diagnoses (Cont'd)
EL-4213

2. CHECK VOICE GUIDE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and transfer unit connector.
3. Check continuity between NAVI control unit harness connector M167 terminals 7 (Y), 8 (BR), and transfer unit harnessconnector M173 terminals 8 (Y), 10 (BR).
SKIA9115E
7 (Y) - 8 (Y) Continuity should exist.
8 (BR) - 10 (BR) Continuity should exist.
4. Check continuity between NAVI control unit harness connector M167 terminals 7 (Y), 8 (BR) and ground. 7 (Y), 8 (BR) - Ground Continuity should not exist. OK or NG
OK ©GO TO 3.
NG ©+Check connector housings for disconnected or loose terminals.
+ Repair harness or connector.
3. CHECK VOICE GUIDE SIGNAL (NAVI CONTROL UNIT)
1. Connect NAVI control unit connector and transfer unit connector.
2. Turn ignition switch ON.
3. Push ªVOICEº switch.
4. Check the signal between NAVI control unit harness connector M167 terminals 7 (Y) and 8 (BR) with CONSULT-ll or
oscilloscope.
SKIA9113E
7 (Y) - 8 (BR): Refer to EL-4183. OK or NG
OK ©GO TO 4.
NG ©Replace NAVI control unit.
NAVIGATION SYSTEM
Trouble Diagnoses (Cont'd)
EL-4214

4. CHECK VOICE CHANGE RELAY CIRCUIT: (1)
1. Turn ignition switch OFF.
2. Disconnect transfer unit connector and voice change relay connector.
3. Check continuity between transfer unit harness connector M173 terminals 1 (L), 2 (PU) and voice change relay harnessconnector M174 terminals 6 (L), 7 (PU).
SKIA9122E
1 (L) - 6 (L) Continuity should exist.
2 (PU) - 7 (PU) Continuity should exist.
4. Check continuity between transfer unit harness connector M173 terminals 1 (L), 2 (PU) and ground. 1 (L), 2 (PU) - Ground Continuity should not exist. OK or NG
OK ©GO TO 5.
NG ©Repair harness or connector.
5. CHECK VOICE GUIDE SIGNAL (TRANSFER UNIT)
1. Connect transfer unit connector and voice change relay connector.
2. Turn ignition switch ON.
3. Push ªVOICEº switch.
4. Check the signal between transfer unit harness connector M173 terminals 1 (L) and 2 (PU) with CONSULT-ll or oscillo-
scope.
SKIA9118E
1 (L) - 2 (PU): Refer to EL-4187. OK or NG
OK ©GO TO 6.
NG ©Replace transfer unit.
NAVIGATION SYSTEM
Trouble Diagnoses (Cont'd)
EL-4215