Mitsubishi Galant (2004+). Manual - part 1723

LIGHTING

CHASSIS ELECTRICAL

54A-11

CONSTRUCTION DIAGRAM

AC306773AC

MAP LIGHT

MAP LIGHT

REAR DOME LIGHT

TRUNK LIGHT

VANITY MIRROR LIGHT

<VEHICLES WITHOUT SUNROOF>

<VEHICLES WITH SUNROOF>

MAP LIGHT ASSEMBLY

OVERHEAD CONSOLE ASSEMBLY

GLOVE BOX LIGHT

COMBINATION METER

CHASSIS ELECTRICAL

54A-12

COMBINATION METER

M2540005000236

The combination meter features large, clearly visible 
analog indicators. The gauges are arranged with the 
speedometer in the middle, the tachometer at left, 
and the fuel and coolant temperature gauges at right. 
The combination meter offers the following advan-
tages:

•

Blue LED light sources are used for a coordi-
nated ice-blue tone during evening illumination.

•

The speedometer is positioned centrally for eas-
ier visibility. The speedometer dial is 7 mm (0.2 
in.) higher than the other dials and it is encircled 
by a metallic ring for an enhanced 3D effect and 
better visibility. <Except for GTS>

•

Easily recognizable rounded lettering is used. 
<Except for GTS>

•

To eliminate distracting glare during night driving, 
the meter bezel is attached to the instrument 
panel in a single-unit construction.

•

For a brighter display at night and for a longer life, 
all indicator lamps, warning lamps, and illumina-
tion bulbs use LEDs.

•

The inset connector is designed to improve ser-
viceability during maintenance of the combination 
meter.

•

For easier mileage check, a delayed extinction 
function has been adopted for the odometer and 
trip meter. The function works as follows:

•

The light illuminates for 30 seconds after the 
ignition switch is turned OFF, and then turns 
OFF.

•

The light illuminates for 30 seconds after a 
door is opened, and then goes OFF.

•

The light illuminates for 30 seconds after the 
reset button is pressed, and then goes OFF.

•

Mesh-like white plates have been 
adopted.<GTS>

•

Because of the white color, the meter plates have 
fine lettering for improved visibility.<GTS>

•

The outer rings of the meter gauges are galva-
nized to give the car an upscale image.<GTS>

•

CAN communication provides reliable transmis-
sion of all gauge data and indicator lamp input 
signals, such as vehicle speed, engine RPM, and 
coolant temperature. For further details on CAN, 
refer to GROUP 54C, CAN. The signals that the 
combination meter uses are described in the 
CAN communications input signals table in 
GROUP 54C.

•

The indicators for the speedometer, fuel gauge, 
and other gauges are driven by a stepping motor. 
For further details, refer to the section on the 
stepping motor (see next page).

•

The electronic speedometer receives vehicle 
speed signals sent by the powertrain control 
module via the CAN.

•

Combination meter features a diagnostic trouble 
code function for improved serviceability.

COMBINATION METER

CHASSIS ELECTRICAL

54A-13

CONSTRUCTION DIAGRAM

STEPPING MOTOR

These gauges use a stepping motor as the drive mechanism 
for the indicators (called the "movement"). Compared with con-
ventional movements, the torque for driving the indicators pro-
vides superior indicator accuracy and more stable response. 
The indicator position displayed is determined as the microcon-
troller circuit in the gauge controls the stepping motor. In con-
ventional gauges, the indicator revolves 360

°

 in response to 

360

°

 driving controls. However, a stepping motor is designed 

so that the indicator revolves only 45

°

, even in response to a 

drive control of 360

°

. The 45

°

 drive control must be repeated to 

make the indicator rotate 360

°

. Thus, at a position 45

°

 away 

from the indicator display position, there will be an identical 
control.
As a result, in the case of a great impact, if the ignition is 
switched on to start driving while the indicator is misaligned, the 
indicator will function while misaligned. Thus, to return the indi-
cator to the normal position in case this happens, when the 
ignition is switched on, the indicator positions are reset to their 
respective positions after the battery line is cut and recon-
nected. Then, the indicators simply return to the zero position. 

AC306789AB

SPEEDOMETER

TACHOMETER

FUEL GAUGE

COOLANT
TEMPERATURE GAUGE

METALLIC STYLE RING

ODO-TRIP METER

<VEHICLES FOR USA>

<VEHICLES FOR CANADA>

RESET BUTTON

AC208264 AC

WHEN THE BATTERY LINE IS CONNECTED OR  
VOLTAGE IS DROPPED BY CRANKING, DTC

AC107161AD

45

WHEN THE IGNITION  SWITCH IS TURNED TO ON
OR LOCK (OFF)

INDICATOR IS 
MISALIGNED

INDICATOR IS  AT 
NORMAL POSITION

COMBINATION METER

CHASSIS ELECTRICAL

54A-14

The same operation is performed after voltage is restored if 
gauge functions are lost because of a voltage drop from crank-
ing or the like. Furthermore, the indicator only returns 45

°

 after 

the ignition is switched on or the lock is turned off. The indicator 
is not moved if it is not misaligned.

CAN COMMUNICATION INPUT SIGNALS TABLE

DTC CODE TABLE

SIGNAL

TRANSMITTER ECU

Engine speed signal

Powertrain control module

Vehicle speed signal
Vehicle stop signal
Malfunction indicator light request signal
Auto-cruise control indicator light signal
Engine coolant temperature signal
Transmission range signal
ABS warning light request signal

ABS-ECU

SRS warning light request signal

SRS-ECU

Communication standby signal

ETACS-ECU

Ignition switch (ACC) signal
Ignition switch (IG1) signal
High-beam indicator request signal
Turn-signal indicator request signal
Fog light indicator request signal
Illumination signal
Door "open" signals
Interior light shut-off signal

DTC CODE NO.

DIAGNOSTIC ITEM

U1073

Bus off

U1100

Powertrain control module time-out (related to engine)

U1101

Powertrain control module time-out (related to A/T)

U1102

ABS-ECU time-out

U1109

ETACS-ECU time-out

U1112

SRS-ECU time-out

U1120

Failure information on powertrain control module (related to engine)

U1206

Flag invalid