Subaru Legacy 2004 Service Manual page 602

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AY: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 2.0)(diag)-
38, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO 2.0)(diag)-32, OPER-
ATION, Inspection Mode.>.
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
AZ:DTC P0692 COOLING FAN 1 CONTROL CIRCUIT HIGH
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 2.0)(diag)-
38, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO 2.0)(diag)-32, OPER-
ATION, Inspection Mode.>.
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
BA:DTC P0700 TRANSMISSION CONTROL SYSTEM (MIL REQUEST)
NOTE:
For the diagnostic procedure, refer to AT section. <Ref. to 4AT(diag)-2, Basic Diagnostic Procedure.>
Check
Does DTC P0691 appear on
the Subaru Select Monitor?
Check
Does DTC P0692 appear on
the Subaru Select Monitor?
EN(H4SO 2.0)(diag)-170
Yes
Check the radiator Temporary poor
fan system. <Ref. contact occurs.
to CO(H4SO 2.0)-
7, Radiator Fan
System.>
Yes
Check the radiator Temporary poor
fan system. <Ref. contact occurs.
to CO(H4SO 2.0)-
7, Radiator Fan
System.>
No
No