Subaru Legacy 2004 Service Manual page 944

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AZ:DTC P0691 COOLING FAN 1 CONTROL CIRCUIT LOW
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
• Radiator fan does not operate properly.
• Overheating
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4SO 2.5)(diag)-
41, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO 2.5)(diag)-34, Inspection Mode.>.
Step
1 CHECK OPTION CODE.
2 CHECK ANY OTHER DTC ON DISPLAY.
Check
Is the option code EC, EK or
K4?
Is DTC P0691 displayed on the
Subaru Select Monitor?
EN(H4SO 2.5)(diag)-185
ENGINE (DIAGNOSTICS)
Yes
Go to step 2. Refer to EN(H4SO
2.0) section. <Ref.
to EN(H4SO
2.0)(diag)-66, List
of Diagnostic Trou-
ble Code (DTC).>
NOTE:
Fuel injection sys-
tem for KA and KS
model is the same
as 2.0 L model.
Check the radiator Temporary poor
fan system. <Ref. contact occurs.
to CO(H4SO 2.0)-
7, Radiator Fan
System.>
No