Subaru Legacy (2005 year). Manual - part 961

IDI-9

INSTRUMENTATION/DRIVER INFO

Combination Meter System

CHECK FUEL SUB LEVEL SENSOR.
1) Remove the fuel sub level sensor. <Ref. to
FU(H4SO 2.0)-50, REMOVAL, Fuel Sub Level
Sensor.> <Ref. to FU(H4SO 2.5)-53,
REMOVAL, Fuel Sub Level Sensor.> <Ref. to
FU(H4DOTC)-51, REMOVAL, Fuel Sub Level
Sensor.> <Ref. to FU(H6DO)-51, REMOVAL,
Fuel Sub Level Sensor.>
2) Measure the resistance between fuel sub
level sensor terminals when the float is in
FULL or EMPTY position.

Terminals

No. 1 — No. 2:

Is the resistance 1.0 — 3.0

Ω

(FULL) or 61 — 63

Ω

(EMPTY)?

Go to step 4.

Replace the fuel
sub level sensor.

CHECK HARNESS BETWEEN FUEL SUB-
LEVEL SENSOR AND BODY INTEGRATED
MODULE.
1) Disconnect the connector from body inte-
grated module.
2) Measure the resistance between fuel sub
level sensor harness connector terminal and
body integrated module harness connector ter-
minal.

Connector & terminal

(R59) No. 1 — (B281) No. 19:

Is the resistance less than 10
Ω?

Go to step 5.

Repair the wiring
harness.

CHECK HARNESS BETWEEN FUEL LEVEL
SENSOR AND FUEL SUB LEVEL SENSOR.
Measure the resistance between fuel level sen-
sor harness connector terminal and fuel sub
level sensor harness connector terminal.

Connector & terminal

(R58) No. 1 — (R59) No. 2:

Is the resistance less than 10
Ω?

Go to step 6.

Repair the wiring
harness.

CHECK FUEL LEVEL SENSOR GROUND
CIRCUIT.
Measure the resistance between fuel level sen-
sor harness connector terminal and chassis
ground.

Connector & terminal

(R58) No. 4 — Chassis ground:

Is the resistance less than 10
Ω?

Replace the meter
case assembly.

Repair the wiring
harness.

Step

Check

Yes

IDI-10

Vehicle-id:
SIE-id:S907607a10:B:INSPECTION
∼

INSTRUMENTATION/DRIVER INFO

Combination Meter System

8. CHECK ENGINE COOLANT TEMPERATURE SENSOR.

9. COMMUNICATION ERROR DISPLAY

When the following error code is displayed in the
odo/trip meter, inspect the communication circuit
since the communication malfunction is generated
between each control module. <Ref. to LAN(diag)-
2, Basic Diagnostic Procedure.>

Step

Check

Yes

CHECK COMMUNICATION ERROR DIS-
PLAY.
1) Set the ignition switch to ON.
2) Check that the error code is displayed in
odo/trip meter.

Is the error code “Er xx” dis-
played in odo/trip meter?

Check the commu-
nication circuit.
<Ref. to IDI-10,
COMMUNICA-
TION ERROR
DISPLAY,
INSPECTION,
Combination
Meter System.>

Go to step 2.

CHECK ENGINE COOLANT TEMPERATURE
SENSOR.
Check the engine coolant temperature sensor.
<Ref. to EN(H4SO 2.0)(diag)-2, Basic Diag-
nostic Procedure.> <Ref. to
EN(H4DOTC)(diag)-2, Basic Diagnostic Proce-
dure.> <Ref. to EN(H6DO)(diag)-2, Basic
Diagnostic Procedure.>

Is the engine coolant tempera-
ture sensor OK?

Replace the meter
case assembly.

Replace the
engine coolant
temperature sen-
sor.

IDI00100

Error code

Remarks

Er IU

Malfunction in integrated unit

−−

Simultaneous malfunction of
high/low speed CAN com-
munication

Er HC

Malfunction of high-speed
CAN communication

Er LC

Malfunction of low-speed
CAN communication

Er EG

EGI Communication mal-
function

Er TC

TCM Communication mal-
function

Er Ab

ABSCM/VDCCM Communi-
cation malfunction

Er SP

ABSCM/VDCCM DTC infor-
mation, vehicle speed pulse
malfunction

Er SS

Wheel speed data malfunc-
tion

IDI-11

INSTRUMENTATION/DRIVER INFO

Combination Meter System

10.DTC DISPLAY MODE

When DTC display mode is operated, {ECM}, {TCM}, {ABSCM/VDCCM} is displayed repeatedly in this order
by pressing the odo/trip meter button. DTC is displayed in the following table according to type of control
module, receiving DTC, DTC detected, No DTC. If CAN communication is broken down, “-----” is displayed.

Control module

Condition

Display

ECM

Receiving DTC

Trip “A” + “P (blinking)”

DTC detected

Trip “A” + “Pxxxx”

No DTC

Trip “A” + “P----”

TCM

Receiving DTC