Subaru IMPREZA GD 2007 Series Manual page 1568

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
BX:DTC P0483 FAN RATIONALITY CHECK
DTC DETECTING CONDITION:
• Detected when two consecutive driving cycles with fault occur.
• GENERAL DESCRIPTION <Ref. to GD(STI)-167, DTC P0483 FAN RATIONALITY CHECK, Diagnostic
Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
• Occurrence of noise
• Overheating
CAUTION:
After repairing or replacing the defective part, perform the Clear Memory Mode <Ref. to EN(STI)(di-
ag)-48, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(STI)(diag)-39, PROCE-
DURE, Inspection Mode.>.
NOTE:
If the vehicle, with the engine idling, is placed very close to a wall or another vehicle, preventing normal cool-
ing function, the OBD system may detect malfunction.
Step
1 CHECK FOR ANY OTHER DTC ON DISPLAY. Is any other DTC displayed?
BY:DTC P0502 VEHICLE SPEED SENSOR "A" CIRCUIT LOW INPUT
NOTE:
For the diagnostic procedure, refer to DTC P0503. <Ref. to EN(STI)(diag)-238, DTC P0503 VEHICLE
SPEED SENSOR "A" INTERMITTENT/ERRATIC/HIGH, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>
Check
EN(STI)(diag)-237
ENGINE (DIAGNOSTICS)
Yes No
Check the appro- Check radiator fan,
priate DTC using fan motor and ther-
the "List of Diag- mostat and if ther-
nostic Trouble mostat is stuck,
Code (DTC)". replace thermo-
<Ref. to stat. <Ref. to
EN(STI)(diag)-71, CO(H4DOTC)-30,
List of Diagnostic Radiator Main Fan
Trouble Code and Fan Motor.>
(DTC).> <Ref. to
CO(H4DOTC)-32,
Radiator Sub Fan
and Fan Motor.>