Check Engine Coolant - Subaru 2001 FORESTER Service Manual

7. CHECK ENGINE COOLANT

TEMPERATURE SENSOR
No.
1 CHECK ENGINE COOLANT TEMPERA-
TURE SENSOR.
Check engine coolant temperature sensor.
<Ref. to EN(SOHC)-122, DTC
P0117—ENGINE COOLANT TEMPERATURE
SENSOR CIRCUIT LOW INPUT—, Diagnos-
tic Procedure with Diagnostic Trouble Code
(DTC).>, <Ref. to EN(SOHCw/oOBD)-70,
DTC21 ENGINE COOLANT TEMPERATURE
SENSOR, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).> or <Ref. to
EN(DOHC TURBO)-130, DTC
P0117—ENGINE COOLANT TEMPERATURE
SENSOR CIRCUIT LOW INPUT—, Diagnos-
tic Procedure with Diagnostic Trouble Code
(DTC).>
2 CHECK HARNESS BETWEEN ENGINE
COOLANT TEMPERATURE SENSOR AND
COMBINATION METER.
1) Turn ignition switch to OFF.
2) Disconnect connector from engine coolant
temperature sensor and combination meter.
3) Measure resistance between engine cool-
ant temperature sensor harness connector
(E8) and combination meter harness connec-
tor (i12).
Connector & terminal
(E8) No. 3 — (i12) No. 13:
COMBINATION METER SYSTEM
S907607A1006
Step
Is engine coolant tempera-
ture sensor OK?
Is the resistance less than
10 Ω?
IDI-13
Check Yes
Go to step 2.
Check water tem-
perature gauge.
<Ref. to IDI-20
REMOVAL, Water
Temperature
Gauge.>
Instrumentation/Driver Info
No
Replace engine
coolant tempera-
ture sensor.
Repair wiring har-
ness.