Infiniti EX35. Manual - part 1091

MWI-42

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (UNIFIED METER AND A/C AMP.)

LCD
[B&P N, B&P I, ID NG, ROTAT, SFT 
P, INSRT, BATT, NO KY,OUTKY, LK 
WN]

Displays status of Intelligent Key system warning judged from meter display signal 
received from BCM with CAN communication line.

ACC TARGET
[On/Off]

Status of vehicle ahead detection indicator judged from meter display signal re-
ceived from ICC sensor integrated unit with CAN communication line.

ACC DISTANCE
[Off, SHOR, MID, LONG]

Status of set distance indicator judged from meter display signal received from 
ICC sensor integrated unit with CAN communication line.

ACC OWN VHL
[On/Off]

Status of own vehicle indicator judged from meter display signal received from 
ICC sensor integrated unit with CAN communication line.

ACC SET SPEED
[On/Off]

Status of set vehicle speed indicator judged from meter display signal received 
from ICC sensor integrated unit with CAN communication line.

ACC UNIT
[On/Off]

Status of display unit judged from meter display signal received from ICC sensor 
integrated unit with CAN communication line.

SHIFT IND
[P, R, N, D, M1, M2, M3, M4, M5]

Status of A/T position indicator judged from shift position signal and manual mode 
indicator signal received from TCM with CAN communication line.

O/D OFF SW
[On/Off] 

This item is displayed, but cannot be monitored.

AT S MODE SW
[On/Off]

Status of snow mode switch.

AT P MODE SW
[On/Off]

This item is displayed, but cannot be monitored.

M RANGE SW
[On/Off]

Status of manual mode switch.

NM RANGE SW
[On/Off]

Status of not manual mode switch.

AT SFT UP SW
[On/Off]

Status of A/T shift up switch.

AT SFT DWN SW
[On/Off]

Status of A/T shift down switch.

ST SFT UP SW
[On/Off]

This item is displayed, but cannot be monitored.

ST SFT DWN SW
[On/Off]

This item is displayed, but cannot be monitored.

COMP F/B SIG
[On/Off]

A/C compressor activation condition that ECM judges according to the water tem-
perature and the acceleration degree.

4WD LOCK SW
[Off]

This item is displayed, but cannot be monitored.

PKB SW
[On/Off]

Status of parking brake switch.

BUCKLE SW
[On/Off]

Status of seat belt buckle switch.

BRAKE OIL SW
[On/Off]

Status of brake fluid level switch.

DISTANCE
[km]

Value of possible driving distance calculated by unified meter and A/C amp.

OUTSIDE TEMP
[

°

C or 

°

F]

Ambient air temperature value converted from ambient sensor signal received 
from ambient sensor.
NOTE:
This may not match with the temperature value indicated on the information dis-
play. (Because the information display value is a corrected value from the ambient 
sensor input value.)

Display item [Unit]

MAIN

SIGNALS

Description

MWI

DIAGNOSIS SYSTEM (UNIFIED METER AND A/C AMP.)

MWI-43

< FUNCTION DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

NOTE:

Some items are not available according to vehicle specification.

FUEL LOW SIG
[On/Off]

Status of fuel level low warning signal to output to AV control unit with CAN com-
munication line.

BUZZER 
[On/Off]

X

Buzzer status (in the combination meter) is judged with the buzzer output signal 
received from each unit with CAN communication line and the warning output con-
dition of the combination meter.

Display item [Unit]

MAIN

SIGNALS

Description

MWI-44

< COMPONENT DIAGNOSIS >

U1000 CAN COMM CIRCUIT

COMPONENT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000003140183

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with two
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to 

LAN-17, "How to Use CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000003140184

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000003140185

1.

PERFORM SELF DIAGNOSTIC

1.

Turn ignition switch ON and wait for 2 seconds or more.

2.

Check “Self Diagnostic Result” of “METER/M&A”. 

Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to 

LAN-18, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-38, "Intermittent Incident"

.

DTC

Display contents of 

CONSULT-III

Diagnostic item is detected when ...

Probable malfunction location

U1000

CAN COMM CIRCUIT

When unified meter and A/C amp. is not trans-
mitting or receiving CAN communication sig-
nal for 2 seconds or more.

CAN communication system

MWI

U1010 CONTROL UNIT (CAN)

MWI-45

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000003140186

Initial diagnosis of unified meter and A/C amp.

DTC Logic

INFOID:0000000003140187

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000003140188

1.

REPLACE UNIFIED METER AND A/C AMP.

When DTC “U1010” is detected, replace unified meter and A/C amp.

>> INSPECTION END

DTC

Display contents of CON-

SULT-III

Diagnostic item is detected when ...

Probable malfunction location

U1010

CONTROL UNIT (CAN)

If any malfunction is detected during initial di-
agnosis of unified meter and A/C amp. CAN 
controller

Unified meter and A/C amp.