Mitsubishi Lancer Evolution IX. Manual — part 277
COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL
54A-45
Q: Is the wiring harness between fuel gauge unit (sub)
connector D-10 (terminal 1) and combination meter
connector C-02 (terminal 51) in good condition?
YES :
Go to Step 8.
NO :
Repair the wiring harness. The fuel gauge
should work normally.
STEP 8. Check the wiring harness between fuel
gauge unit (sub) connector D-10 (terminal 2) and
fuel gauge unit (main) connector D-12 (terminal
2).
AC310465
AK
D-10
D-10
D-12(GR)
Harness side
D-12
Harness side
Connectors: D-10, D-12
Q: Is the wiring harness between fuel gauge unit (sub)
connector D-10 (terminal 2) and fuel gauge unit
(main) connector D-12 (terminal 2) in good
condition?
YES :
Repair or replace the combination meter.
The fuel gauge should work normally.
NO :
Repair the wiring harness. The fuel gauge
should work normally.
INSPECTION PROCEDURE 4: Engine Coolant Temperature Gauge does not Work.
COMBINATION
METER
CONTROL
CIRCUIT
T/GA
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
ENGINE COOLANT
TEMPERATURE
GAUGE UNIT
NOTE
: L.H. drive vehicles
: R.H. drive vehicles
Engine Coolant Temperature Gauge Circuit
COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL
54A-46
TECHNICAL DESCRIPTION (COMMENT)
If only the engine coolant temperature gauge does
not operate, the combination meter, the wiring har-
ness or its connector may be defective.
TROUBLESHOOTING HINTS
• Malfunction of the engine coolant temperature
gauge unit
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector.
• Malfunction of the combination meter.
DIAGNOSIS PROCEDURE
STEP 1. Check the other meters.
Check to see that the speedometer, tachometer
and engine coolant temperature gauge unit
operate normally.
Q: Do all other meters operate?
Yes <other meters all operate> :
Go to Step 2.
NO <one or more of the other meters does not
operate.> :
Refer to
STEP 2. Check engine coolant temperature
gauge unit connector B-112 for loose, corroded
or damaged terminals, or terminals pushed back
in the connector.
AC310439
Connector: B-112
Harness side
B-112 (B)
AH
Q: Is engine coolant temperature gauge unit
connector B-112 in good condition?
YES :
Go to Step 3.
NO :
Repair or replace the damaged
component(s). The engine coolant
temperature gauge unit should work
normally.
STEP 3. Check the engine coolant temperature
gauge unit.
Check to see that the engine coolant temperature
gauge unit operate normally. Refer to
Q: Is the engine coolant temperature gauge unit
normal?
YES :
Go to Step 4.
NO :
Replace the engine coolant temperature
gauge unit. The engine coolant temperature
gauge unit should work normally.
STEP 4. Check combination meter connector
C-02 for loose, corroded or damaged terminals,
or terminals pushed back in the connector.
AC310446
Connector : C-02
<L.H. drive vehicles>
Harness side
BG
C-02(L)
AC310456
Connector : C-02
<R.H. drive vehicles>
Harness side
AV
C-02(L)
Q: Is combination meter connector C-02 in good
condition?
YES :
Go to Step 5.
NO :
Repair or replace the damaged
component(s). The engine coolant
temperature gauge unit should work
normally.
COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL
54A-47
STEP 5. Check the wiring harness between
engine coolant temperature gauge unit
connector B-112 (terminal 1) and combination
meter connector C-02 (terminal 50).
AC310439
Connector: B-112
Harness side
B-112 (B)
AH
AC310447
Connectors : C-02, C-124
<L.H. drive vehicles>
C-02(L)
C-124
Harness side
AW
C-02
C-124
AC310456
Connector : C-02
<R.H. drive vehicles>
Harness side
AV
C-02(L)
AC310454
Connector : C-124
<R.H. drive vehicles>
BR
NOTE: Also check intermediate connector C-124 for
loose, corroded, or damaged terminals, or terminals
pushed back in the connector. If intermediate con-
nector C-124 is damaged, repair or replace the con-
nector.
Q: Are the wiring harness between engine coolant
temperature gauge unit connector B-112 (terminal
1) and combination meter connector C-02 (terminal
50) in good condition?
YES :
Repair or replace the combination meter.
The engine coolant temperature gauge unit
should work normally.
NO :
Repair the wiring harness. The engine
coolant temperature gauge unit should work
normally.
COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL
54A-48
INSPECTION PROCEDURE 5: Combination meter does not work.
IGNITION
SWITCH (IG1)
R.H. drive vehicles
L.H. drive vehicles
BATTERY
RELAY
BOX
CONTROL CIRCUIT
COMBINATION
METER
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
NOTE
: L.H. drive vehicles
: R.H. drive vehicles
Combination Meter Power Source Circuit
TECHNICAL DESCRIPTION (COMMENT)
The cause is thought to be malfunction of the power,
earth circuitry or combination meter.
TROUBLESHOOTING HINTS
• Malfunction of the combination meter
• Damaged wiring harness or connectors
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