Subaru B9 TRIBECA WX 2007 Manual page 568

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8. CHECK ENGINE COOLANT TEMPERATURE SENSOR
Step
1 CHECK COMMUNICATION ERROR DIS-
PLAY.
1) Turn the ignition switch to ON.
2) Check that the error code is displayed in
odo/trip meter.
2 CHECK ENGINE COOLANT TEMPERATURE
SENSOR.
Check the engine coolant temperature sensor.
<Ref. to EN(H6DO)(diag)-2, Basic Diagnostic
Procedure.>
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.>
10.DTC DISPLAY MODE
When DTC display mode is operated, {ECM}, {TCM} is displayed repeatedly in this order by pressing the trip
knob. DTC is displayed in the following table according to type of control module, receiving DTC, DTC de-
tected, No DTC. If CAN communication has some trouble, "-----" is displayed.
Control module
ECM
TCM
When CAN communication error
is occurred
Combination Meter System
Is the error code "Er xx" dis-
played on odo/trip meter?
Is the engine coolant tempera-
ture sensor OK?
Er IU
Er ––
Er HC
Er LC
Er EG
Er TC
Er Ab
Er SP
IDI00188
Er SS
Er bb
Condition
Receiving DTC Trip "A" + "P (Blink)"
DTC detected Trip "A" + "P xxxx"
No DTC Trip "A" + "P ----"
Receiving DTC Trip "B" + "P (Blink)"
DTC detected Trip "B" + "P xxxx"
No DTC Trip "B" + "P ----"
— "-----"
IDI-11
INSTRUMENTATION/DRIVER INFO
Check Yes
Check the commu-
nication circuit.
<Ref. to IDI-11,
COMMUNICA-
TION ERROR DIS-
PLAY,
INSPECTION,
Combination Meter
System.>
Replace the meter
case assembly.
Error code
Malfunction in integrated
module
Simultaneous malfunction of
high/low speed CAN com-
munication
High speed CAN communi-
cation failure
Malfunction of low-speed
CAN communication
EGI Communication failure
TCM Communication failure
VDCCM communication fail-
ure
VDCCM DTC information
and vehicle speed pulse
malfunction
Wheel speed data malfunc-
tion
Vacuum pump system mal-
function
Display
No
Go to step 2.
Replace the
engine coolant
temperature sen-
sor.
Description