Infiniti G37 Coupe. Manual - part 938

MWI-98

< ECU DIAGNOSIS >

UNIFIED METER AND A/C AMP.

JCNWA0444GB

MWI

UNIFIED METER AND A/C AMP.

MWI-99

< ECU DIAGNOSIS >

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Fail Safe

INFOID:0000000001606700

FAIL SAFE

The unified meter and A/C amp. activates the fail-safe control if CAN communication with each unit is malfunc-
tioning.

JCNWA0445GB

MWI-100

< ECU DIAGNOSIS >

UNIFIED METER AND A/C AMP.

DTC Index

INFOID:0000000001606701

NOTE:
The details of TIME display are as follows.
• CRNT: The malfunctions that are detected now.
• PAST: The malfunctions was detected in the past. IGN counter is displayed on FFD (Freeze Frame data).

Function

Specifications

Speedometer

Reset to zero by suspending communication.

Tachometer

Fuel gauge

Indicates fuel level

Water temperature gauge

Reset to zero by suspending communication.

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

Master warning lamp

Low tire pressure warning lamp

The lamp turns ON after flashing for 1 minute.

AFS OFF indicator lamp

The lamp blinking caused by communication malfunction

High beam indicator

The lamp turns off by suspending communication.

4WAS warning lamp

Turn signal indicator lamp

Front fog indicator lamp

Oil pressure warning lamp

Malfunction indicator lamp

A/T CHECK warning lamp

Key warning lamp

Display contents of CONSULT-III

Time

Diagnostic item is detected when...

Refer to

U1000: CAN COMM CIRCUIT

CRNT

PAST

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

MWI-41

U1010: CONTROL UNIT (CAN)

CRNT

PAST

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

MWI-42

B2201: COMM ERROR 1

CRNT

PAST

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-43

B2202: COMM ERROR 2

CRNT

PAST

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-45

B2205: VEHICLE SPEED

CRNT

PAST

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

MWI-47

B2267: ENGINE SPEED

CRNT

PAST

If ECM continuously transmits abnormal engine speed signals 
for 2 seconds or more.

MWI-48

B2268: WATER TEMP

CRNT

PAST

If ECM continuously transmits abnormal engine coolant temper-
ature signals for 60 seconds or more.

MWI-49

MWI

UNIFIED METER AND A/C AMP.

MWI-101

< ECU DIAGNOSIS >

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- 1 - 39: The number is indicated when it is normal at present and a malfunction was detected in the past. It

increases like 0 

→

 1 

→

 2 ··· 38 

→

 39 after returning to the normal condition whenever IGN OFF 

→

 ON. It is

fixed to 39 until the self-diagnosis results are erased if it is over 39. It returns to 0 when a malfunction is
detected again in the process.