Infiniti FX35, FX50 (S51). Manual - part 1400

MWI

UNIFIED METER AND A/C AMP.

MWI-119

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

DTC Index

INFOID:0000000005524653

Function

Specifications

Speedometer

Reset to zero by suspending communication.

Tachometer

Fuel gauge

Engine coolant temperature gauge

Illumination control

When suspending communication, change to nighttime mode.

Information display

The display turns off by suspending communication.

Buzzer

The buzzer turns off by suspending communication.

Warning lamp/indicator 
lamp

ABS warning lamp

The lamp turns on by suspending communication.

VDC OFF indicator lamp

SLIP indicator lamp

Brake warning lamp

CRUISE warning lamp

IBA OFF indicator lamp

AWD warning lamp

Low tire pressure warning lamp

RAS warning lamp

Master warning lamp

Malfunction indicator lamp

AFS OFF indicator lamp

The lamp blinking caused by communication malfunction

High beam indicator

The lamp turns off by suspending communication.

Turn signal indicator lamp

Tail lamp indicator lamp

Oil pressure warning lamp

A/T CHECK warning lamp

Key warning lamp

Lane departure warning lamp

LDP ON indicator lamp

Sports mode indicator lamp

Display contents of CON-

SULT-III

Time

Diagnostic item is detected when ...

Refer to

CAN COMM CIRCUIT
[U1000]

CRNT, 1 - 39

When unified meter and A/C amp. is not transmitting or receiving CAN 
communication signal for 2 seconds or more.

MWI-49

CONTROL UNIT (CAN)
[U1010]

CRNT, 1 - 39

When detecting error during the initial diagnosis of CAN controller of 
unified meter and A/C amp.

MWI-50

COMM ERROR 1
[B2201]

CRNT, 1 - 39

If a communication error is present in the communication line between 
unified meter and A/C amp. and combination meter for 2 seconds or 
more.

MWI-51

COMM ERROR 2
[B2202]

CRNT, 1 - 39

If a communication error is present in the communication line between 
unified meter and A/C amp. and combination meter for 2 seconds or 
more.

MWI-53

VEHICLE SPEED
[B2205]

CRNT, 1 - 39

The abnormal vehicle speed signal is input from ABS actuator and elec-
tric unit (control unit) for 2 seconds or more.

MWI-55

MWI-120

< ECU DIAGNOSIS INFORMATION >

UNIFIED METER AND A/C AMP.

ENGINE SPEED
[B2267]

CRNT, 1 - 39

If ECM continuously transmits abnormal engine speed signals for 2 sec-
onds or more.

MWI-56

WATER TEMP
[B2268]

CRNT, 1 - 39

If ECM continuously transmits abnormal engine coolant temperature 
signals for 60 seconds or more.

MWI-57

Display contents of CON-

SULT-III

Time

Diagnostic item is detected when ...

Refer to

MWI

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

MWI-121

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)

Reference Value

INFOID:0000000005619021

VALUES ON THE DIAGNOSIS TOOL

Monitor Item

Condition

Value/Status

RAD FAN REQ

Engine idle speed

Changes depending on engine 
coolant temperature, air conditioner 
operation status, vehicle speed, 
etc.

0 – 100 %

AC COMP REQ

Engine running

A/C switch OFF

Off

A/C switch ON
(Compressor is operating)

On

TAIL&CLR REQ

Lighting switch OFF

Off

Lighting switch 1ST, 2ND, HI or AUTO (light is illuminated)

On

HL LO REQ

Lighting switch OFF

Off

Lighting switch 2ND HI or AUTO (light is illuminated)

On

HL HI REQ

Lighting switch OFF

Off

Lighting switch HI

On

FR FOG REQ

Lighting switch 2ND or
AUTO (light is illuminated)

Front fog lamp switch OFF

Off

• Front fog lamp switch ON
• Daytime running light activated 

(Only for Canada)

On

FR WIP REQ

Ignition switch ON

Front wiper switch OFF

Stop

Front wiper switch INT

1LOW

Front wiper switch LO

Low

Front wiper switch HI

Hi

WIP AUTO STOP

Ignition switch ON

Front wiper stop position

STOP P

Any position other than front wiper 
stop position

ACT P

WIP PROT

Ignition switch ON

Front wiper operates normally

Off

Front wiper stops at fail-safe opera-
tion

BLOCK

IGN RLY1 -REQ

Ignition switch OFF or ACC

Off

Ignition switch ON

On

IGN RLY

Ignition switch OFF or ACC

Off

Ignition switch ON

On

PUSH SW

Release the push-button ignition switch

Off

Press the push-button ignition switch

On

INTER/NP SW

Ignition switch ON

Selector lever in any position other 
than P or N

Off

Selector lever in P or N position

On

ST RLY CONT

Ignition switch ON

Off

At engine cranking

On

IHBT RLY -REQ

Ignition switch ON

Off

At engine cranking

On

MWI-122

< ECU DIAGNOSIS INFORMATION >

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

ST/INHI RLY

Ignition switch ON

Off

At engine cranking

INHI 

→

 ST 

The status of starter relay or starter control relay cannot be recognized by 
the battery voltage malfunction, etc. when the starter relay is ON and the 
starter control relay is OFF

UNKWN

DETENT SW

Ignition switch ON

• Press the selector button with se-

lector lever in P position

• Selector lever in any position oth-

er than P

Off

Release the selector button with selector lever in P position

On

S/L RLY -REQ

None of the conditions below are present

Off

• Open the driver door after the ignition switch is turned OFF (for a few 

seconds)

• Press the push-button ignition switch when the steering lock is activat-

ed

On

S/L STATE

Steering lock is activated

LOCK

Steering lock is deactivated

UNLOCK

[DTC: B210A] is detected

UNKWN

DTRL REQ

NOTE:
The item is indicated, but not monitored.

Off

OIL P SW

Ignition switch OFF, ACC or engine running

Open

Ignition switch ON

Close

HOOD SW

Close the hood

Off

Open the hood

On

HL WASHER REQ

NOTE:
The item is indicated, but not monitored.

Off

THFT HRN REQ

Not operation

Off

• Panic alarm is activated
• Horn is activated with VEHICLE SECURITY (THEFT WARNING) SYS-

TEM

On

HORN CHIRP

Not operating

Off

Door locking with Intelligent Key (horn chirp mode)

On

CRNRNG LMP REQ

NOTE:
The item is indicated, but not monitored.

Off

Monitor Item

Condition

Value/Status