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Diagnostic Procedure

DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK COOPERATION CONTROL FEASIBILITY OF ECM USING SUBARU SELECT MONITOR. 
  1. Start the engine, and run the engine at idle approximately 5 minutes.
  2. Connect Subaru Select Monitor, and select "Current Data Display & Save".
  3. Check the «E/G Control Stop Flag» displayed on screen.
 Is the «E/G Control Stop Flag» "1"? Go to step 4  . Go to step 2  .
2 CHECK WARNING LIGHT. 
Check whether the VDC warning light illuminates after driving for 1 minute or more at a speed of 10 km/h or more.		 Does the VDC warning light illuminate? Go to step 3  . VDC is normal. Perform the Clear Memory Mode.
NOTE: DTC may be recorded if cranking is performed during driving.
3 CHECK POOR CONTACT OF CONNECTORS.  Is there poor contact of ECM connector? Repair the connector. Go to step 4  .
4 CHECK ECM. 
Refer to the basic diagnostic procedure for each engine (diagnostics).		 Is ECM normal? Go to step 5  . Replace the ECM. < Refer to ENGINE CONTROL MODULE (ECM) . > < Refer to ENGINE CONTROL MODULE (ECM) . >
5 CHECK VDCCM&H/U. 
  1. Connect all connectors.
  2. Clear the memory. < Refer to CLEAR MEMORY MODE . >
  3. Perform the Inspection Mode. < Refer to INSPECTION MODE . >
  4. Read the DTC.
 Is the same DTC displayed? Replace the VDCCM&H/U. < Refer to VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM&H/U) . > Go to step 6  .
6 CHECK OTHER DTC DETECTION.  Is any other DTC displayed? Perform the diagnosis according to DTC. < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > It results from a temporary noise interference.
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