2007 INFINITI M35 control unit

TROUBLE DIAGNOSIS
AV-263
[WITH MOBILE ENTERTAINMENT SYSTEM]
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: 2007 April2007 M35/M45
2. CHECK IMAGE SIGNAL
1. Connect DVD player and video distributor connector.
2. Turn ignition switch ON.
3. Display DVD image.
4. Check signal between DVD player harness connector M272 ter-
minal 20 and ground.
OK or NG
OK >> Replace video distributor.
NG >> Replace DVD player.
Warning Message of Whether Rear View Image Is Rolling or Not DisplayedNKS004B7
1. CHECK HARNESS BETWEEN VIDEO DISTRIBUTOR AND FRONT DISPLAY UNIT
1. Disconnect video distributor connector and front display unit connector.
2. Check continuity between video distributor harness connector
(A) M205 terminals 15, 16 and front display unit harness con-
nector (B) M203 terminals 4, 6.
3. Check continuity between video distributor harness connector
(A) M205 terminals 15, 16 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK HORIZONTAL SYNCHRONIZING SIGNAL
1. Connect AV (NAVI) control unit connector and display unit connector.
2. Turn ignition switch ON.
3. Check signal between video distributor harness connector M205
terminal 15 and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace front display unit.20 – Ground:
SKIB4629E
SKIB2251J
15 – 4 : Continuity should exist.
16 – 6 : Continuity should exist.
15, 16 – Ground : Continuity should not exist.
SKIB4823E
15 – Ground:
SKIB4824E
SKIB3601E

AV-264
[WITH MOBILE ENTERTAINMENT SYSTEM]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
3. CHECK VERTICAL SYNCHRONIZING SIGNAL
Check signal between video distributor harness connector M205 ter-
minals 16 and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace front display unit.
4. CHECK HARNESS BETWEEN AV (NAVI) CONTROL UNIT AND VIDEO DISTRIBUTOR
1. Disconnect AV (NAVI) control unit connector and video distributor connector.
2. Check continuity between AV (NAVI) control unit harness con-
nector (A) M210 terminals 51, 52 and video distributor harness
connector (B) M207 terminals 49, 50.
3. Check continuity between AV (NAVI) control unit harness con-
nector (A) M210 terminals 51, 52 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK HORIZONTAL SYNCHRONIZING SIGNAL
1. Connect AV (NAVI) control unit connector and display unit connector.
2. Turn ignition switch ON.
3. Check signal between AV (NAVI) control unit harness connector
M210 terminal 51 and ground.
OK or NG
OK >> GO TO 6.
NG >> Replace video distributor.16 – Ground:
SKIB4825E
SKIB3598E
51 – 49 : Continuity should exist.
52 – 50 : Continuity should exist.
51, 52 – Ground : Continuity should not exist.
SKIB4826E
51 – Ground:
SKIB4699E
SKIB3601E

TROUBLE DIAGNOSIS
AV-265
[WITH MOBILE ENTERTAINMENT SYSTEM]
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: 2007 April2007 M35/M45
6. CHECK VERTICAL SYNCHRONIZING SIGNAL
Check signal between AV (NAVI) control unit harness connector
M210 terminal 52 and ground.
OK or NG
OK >> Replace AV (NAVI) control unit.
NG >> Replace video distributor.
DVD Operation Screen Is Not DisplayedNKS004B8
ONLY FRONT DISPLAY
Refer to AV- 2 6 3 , "Warning Message of Whether Rear View Image Is Rolling or Not Displayed" .
ONLY REAR DISPLAY
1. CHECK HARNESS BETWEEN VIDEO DISTRIBUTOR AND REAR DISPLAY UNIT
1. Disconnect video distributor connector and rear display unit connector.
2. Check continuity between video distributor harness connector
(A) M206 terminals 29, 30 and rear display unit harness connec-
tor (B) R102 terminals 19, 20.
3. Check continuity between AV (NAVI) control unit harness con-
nector (A) M206 terminals 29, 30 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK VERTICAL SYNCHRONIZING SIGNAL
1. Connect video distributor connector and rear display unit connector.
2. Turn ignition switch ON.
3. Check signal between video distributor harness connector M206
terminal 29 and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace rear display unit.52 – Ground:
SKIB4700E
SKIB3598E
29 – 19 : Continuity should exist.
30 – 20 : Continuity should exist.
29, 30 – Ground : Continuity should not exist.
SKIB4829E
29 – Ground:
SKIB4830E
SKIB3598E

AV-268
[WITH MOBILE ENTERTAINMENT SYSTEM]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
Voice Activated Control System Is Not ActivatedNKS004BB
THE SCREEN IS SWITCHED BY PRESSING THE STEERING SWITCH
1. VOICE MICROPHONE TEST
Turn “Voice Microphone Test” ON at Confirmation/Adjustment mode, and then check the sounds emitted from
the speaker. Refer to AV- 2 3 8 , "
Voice Microphone Test" .
Is the sound output?
YES >> Replace AV (NAVI) control unit.
NO >> GO TO 2.
2. CHECK HARNESS BETWEEN AV (NAVI) CONTROL UNIT AND MIC.
1. Turn ignition switch OFF.
2. Disconnect AV (NAVI) control unit connector and MIC. connector.
3. Check continuity between AV (NAVI) control unit harness con-
nector (A) M78 terminals 6, 7, 8 and MIC. harness connector (B)
R52 terminals 4, 2, 1.
4. Check continuity between AV (NAVI) control unit harness con-
nector (A) M78 terminals 6, 7, 8 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK MIC. POWER SUPPLY
1. Connect AV (NAVI) control unit and MIC. connector.
2. Turn ignition switch ON.
3. Check voltage between AV (NAVI) control unit harness connec-
tor M78 terminals 6 and 7.
OK or NG
OK >> GO TO 4.
NG >> Replace AV (NAVI) control unit.6 – 4 : Continuity should exist.
7 – 2 : Continuity should exist.
8 – 1 : Continuity should exist.
6, 7, 8 – Ground : Continuity should not exist.
SKIB4632E
6 – 7 : Approx. 5 V
SKIB4633E

TROUBLE DIAGNOSIS
AV-269
[WITH MOBILE ENTERTAINMENT SYSTEM]
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: 2007 April2007 M35/M45
4. CHECK MIC. SIGNAL
1. Check signal between AV (NAVI) control unit harness connector
M78 terminals 8 and 7.
OK or NG
OK >> Replace AV (NAVI) control unit.
NG >> Replace MIC.
THE SCREEN IS NOT SWITCHED BY PRESSING THE STEERING SWITCH
Refer to AV- 2 6 9 , "Steering Switch Cannot Be Operated" .
Steering Switch Cannot Be OperatedNKS004BC
NONE OF THE OPERATIONS WORK.
1. CHECK HARNESS
1. Check continuity between spiral cable harness connector (A)
M303 terminal 17 and audio unit harness connector (B) M76 ter-
minal 15.
OK or NG
OK >> Replace steering switch.
NG >> Check spiral cable. If the malfunction is detected, repair
the harness and connector.
“ENTER”, “MENU UP-DOWN”, AND “SOURCE” SWITCHES ARE NOT OPERATED
1. CHECK HARNESS
1. Check continuity between spiral cable harness connector (A)
M303 terminal 20 and audio unit harness connector (B) M76 ter-
minal 6.
2. Check continuity between steering switch harness connector (A)
M303 terminal 20 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check spiral cable. If the malfunction is detected, repair
the harness and connector. 8 – 7:Give a voice
SKIB4634EPKIB5037J
17 – 15 : Continuity should exist.
SKIB6278E
20 – 6 : Continuity should exist.
20 – Ground : Continuity should not exist.
SKIB4636E

AV-270
[WITH MOBILE ENTERTAINMENT SYSTEM]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
2. CHECK STEERING SWITCH SIGNAL A
1. Turn ignition switch ON.
2. Check voltage between audio unit harness connector M76 ter-
minals 6 and 15
OK or NG
OK >> Replace steering switch.
NG >> Replace audio unit.
“PTT/TEL”, “BACK”, AND “VOLUME CONTROL” SWITCHES ARE NOT OPERATED
1. CHECK HARNESS
1. Check continuity between spiral cable harness connector (A)
M303 terminal 16 and audio unit harness connector (B) M76 ter-
minal 16.
2. Check continuity between steering switch harness connector (A)
M303 terminal 16 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check spiral cable. If the malfunction is detected, repair
the harness and connector.
2. CHECK STEERING SWITCH SIGNAL B
1. Turn ignition switch ON.
2. Check voltage between audio unit harness connector M76 ter-
minals 16 and 15
OK or NG
OK >> Replace steering switch.
NG >> Replace audio unit.6 – 15 : Approx. 5 V
SKIB4637E
16 – 16 : Continuity should exist.
16 – Ground : Continuity should not exist.
SKIB4638E
16 – 15 : Approx. 5 V
SKIB4639E

TROUBLE DIAGNOSIS
AV-271
[WITH MOBILE ENTERTAINMENT SYSTEM]
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: 2007 April2007 M35/M45
The Hands-Free Phone Cannot Be UsedNKS004BD
THE VOICE CANNOT BE HEARD
1. CHECK HARNESS AV (NAVI) CONTROL UNIT AND AUDIO UNIT
1. Disconnect AV (NAVI) control unit connector and audio unit connector.
2. Check continuity between AV (NAVI) control unit harness con-
nector (A) M78 terminals 10, 11 and audio unit harness connec-
tor (B) M77 terminals 30, 31.
3. Check continuity between AV (NAVI) control unit harness con-
nector (A) M78 terminals 10, 11 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK TEL VOICE SIGNAL
1. Connect AV (NAVI) control unit connector and audio unit connector.
2. Turn ignition switch ON.
3. Check signal between AV (NAVI) control unit harness connector
M78 terminals 10 and 11.
OK or NG
OK >> Replace audio unit.
NG >> Replace AV (NAVI) control unit.
THE VOICE CANNOT BE TRANSMITTED
Refer to AV- 2 6 8 , "THE SCREEN IS SWITCHED BY PRESSING THE STEERING SWITCH" . 10 – 30 : Continuity should exist.
11 – 31 : Continuity should exist.
10, 11 – Ground : Continuity should not exist.
SKIB4640E
10 – 11:When inputting TEL voice
SKIB4641ESKIB3609E

AV-272
[WITH MOBILE ENTERTAINMENT SYSTEM]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
Voice Guidance Is Not HeardNKS004BE
1. CHECK HARNESS BETWEEN AV (NAVI) CONTROL UNIT AND BOSE AMP
1. Disconnect AV (NAVI) control unit connector and BOSE amp connector.
2. Check continuity between AV (NAVI) control unit harness con-
nector (A) M78 terminals 12, 14 and BOSE amp harness con-
nector (B) B107 terminals 32, 12.
3. Check continuity between AV (NAVI) control unit harness con-
nector (A) M78 terminals 12, 14 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK VOICE GUIDANCE SIGNAL
1. Connect AV (NAVI) control unit connector and BOSE amp connector.
2. Turn ignition switch ON.
3. Push the voice button.
4. Check signal between AV (NAVI) control unit harness connector
M78 terminals 12 and 14.
OK or NG
OK >> Replace AV (NAVI) control unit.
NG >> Replace BOSE amp.12 – 32 : Continuity should exist.
14 – 12 : Continuity should exist.
12, 14 – Ground : Continuity should not exist.
SKIB4644E
12 – 14:
SKIB4645E
SKIB3609E