Subaru 2002 IMPREZA Service Manual page 485

E m
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check Yes
s the value greater than
1200°C (21 92"F)?
Go to step 2.
s the value less than 372°C
702"F)? exhaust gas tem-
Replace the
perature sensor.
<Ref. to FU(D0HC
TURBO)-46,
Exhaust Tempera-
ture Sensor.>
Step
I
CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of exhaust gas temperature
sensor signal using Subaru Select Monitor or
OBD-II general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
"READ CURRENT DATA FOR ENGINE". <Ref.
to EN(D0HC TURBO)-38, Subaru Select Mon-
itor.,
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
GAS TEMPERATURE SENSOR AND ECM
CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from exhaust gas
temperature sensor.
3)Turn the ignition switch to ON.
4)Read the data of exhaust gas temperature
sensor signal using Subaru Select Monitor or
OBD-II general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
"READ CURRENT DATA FOR ENGINE. <Ref.
to EN(D0HC TURBO)-38, Subaru Select Mon-
itor.>
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
!
CHECK HARNESS BETWEEN EXHAUST
No
Repair poor con-
tact.
NOTE:
In this case, repaii
the following:
Poor contact in
exhaust gas tem-
perature sensor
Poor contact in
ECM
Poor contact in
joint connector
Repair ground
short circuit in har-
ness between
exhaust gas tem-
perature sensor
and ECM connec-
tor.
EN(D0HC TURBO)-261