Infiniti FX35 / FX45. Manual — part 289
UNIFIED METER AND A/C AMP
DI-31
< SERVICE INFORMATION >
C
D
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A
B
DI
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NO
>> GO TO 6.
3.
CHECK CONTINUITY COMMUNICATION CIRCUIT (TX: COMBINATION METER)
1.
Turn ignition switch OFF.
2.
Disconnect combination meter connector and unified meter and A/C amp. connector.
3.
Check continuity between combination meter harness connector
M20 terminal 13 and unified meter and A/C amp. harness con-
nector M55 terminal 19.
4.
Check continuity between combination meter harness connector
M20 terminal 13 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair harness or connector.
4.
CHECK VOLTAGE OF UNIFIED METER AND A/C AMP.
1.
Connect unified meter and A/C amp. connector.
2.
Turn ignition switch ON.
3.
Check voltage between combination meter harness connector
M20 terminal 13 and ground.
OK or NG
OK
>> GO TO 5.
NG
>> Replace unified meter and A/C amp. Refer to
"Removal and Installation of Unified Meter and A/C
Amp"
5.
CHECK VOLTAGE SIGNAL OF COMBINATION METER
1.
Turn ignition switch OFF.
2.
Connect combination meter connector.
3.
Turn ignition switch ON.
4.
Check voltage signal between combination meter harness con-
nector M20 terminal 13 and ground.
OK or NG
OK
>> Replace unified meter and A/C amp. Refer to
DI-32, "Removal and Installation of Unified Meter
.
NG
>> Replace combination meter.
6.
CHECK CONTINUITY COMMUNICATION CIRCUIT (RX: COMBINATION METER)
1.
Turn ignition switch OFF.
2.
Disconnect combination meter connector and unified meter and A/C amp. connector.
13 – 19
: Continuity should exist.
13 – Ground
: Continuity should not exist.
SKIA4837E
13 – Ground
: Approx. 5 V
SKIA4886E
13 – Ground:
SKIA9258E
SKIA3361E
DI-32
< SERVICE INFORMATION >
UNIFIED METER AND A/C AMP
3.
Check continuity between combination meter harness connector
M20 terminal 14 and unified meter and A/C amp. harness con-
nector M55 terminal 9.
4.
Check continuity between combination meter harness connector
M20 terminal 14 and ground.
OK or NG
OK
>> GO TO 7.
NG
>> Repair harness or connector.
7.
CHECK VOLTAGE OF COMBINATION METER
1.
Connect combination meter connector.
2.
Turn ignition switch ON.
3.
Check voltage between unified meter and A/C amp. harness
connector M55 terminal 9 and ground.
OK or NG
OK
>> GO TO 8.
NG
>> Replace combination meter.
8.
CHECK VOLTAGE SIGNAL OF UNIFIED METER AND A/C AMP.
1.
Turn ignition switch OFF.
2.
Connect unified meter and A/C amp. connector.
3.
Turn ignition switch ON.
4.
Check voltage signal between combination meter harness con-
nector M20 terminal 14 and ground.
OK or NG
OK
>> Replace combination meter.
NG
>> Replace unified meter and A/C amp. Refer to
DI-32, "Removal and Installation of Unified Meter
.
DTC [B2205] Vehicle Speed Circuit
INFOID:0000000001328462
Symptom: Display “VEHICLE SPEED CIRC [B2205]” at the result of self-diagnosis for unified meter and A/C
amp.
Perform self-diagnosis of ABS actuator and electric unit (control unit), and repair or replace malfunctioning
parts. Refer to
BRC-26, "CONSULT-III Functions (ABS)"
.
Removal and Installation of Unified Meter and A/C Amp
INFOID:0000000001328463
REMOVAL
14 – 9
: Continuity should exist.
14 – Ground
: Continuity should not exist.
SKIA4836E
9 – Ground
: Approx. 5 V
PKIB3587E
14 – Ground:
SKIA9260E
SKIA3362E
UNIFIED METER AND A/C AMP
DI-33
< SERVICE INFORMATION >
C
D
E
F
G
H
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A
B
DI
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P
1.
Remove the audio unit (1). Refer to
.
2.
Remove the screws (A).
3.
Remove the screws (B) and remove the unified meter and A/C
amp. (2).
INSTALLATION
Installation is the reverse order of removal.
NOTE:
Use appropriate screws for each, as screws for audio unit and display unit are different from that for unified
meter and A/C amp.
SKIB8483E
DI-34
< SERVICE INFORMATION >
WARNING LAMPS
WARNING LAMPS
System Description
INFOID:0000000001328464
OIL PRESSURE WARNING LAMP
Oil pressure warning lamp turns ON when reducing engine oil pressure abnormally.
• IPDM E/R reads oil pressure switch signal from oil pressure switch, and transmits the signal to unified meter
and A/C amp. through BCM with CAN communication.
• Unified meter and A/C amp. transmits oil pressure switch signal to combination meter with communication
line.
• Combination meter turns oil pressure warning lamp ON with received oil pressure switch signal.
PKIB7655E
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