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HOMESERVICE MANUALSSUBARU2014OUTBACK 2.5I, STANDARD TRANSREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLVEHICLE DYNAMICS CONTROL SYSTEM (DIAGNOSTICS)DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)DTC C0057 ECM CONTROL SYSTEMDIAGNOSTIC PROCEDURE
2014 Subaru Outback 2.5i, Standard Trans

Diagnostic Procedure

2014 Subaru Outback 2.5i, Standard TransSECTION 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.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.