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Home >> Subaru >> 2013 >> Legacy Premium, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Vehicle Dynamics Control (VDC) System (Diagnostics)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC C0052 Motor And Motor Relay On Failure >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK INSTALLATION OF MOTOR GROUND.  Is the motor ground terminal installation bolt tightened 33 N.m (3.4 kgf-m, 24.3 ft-lb)? Go to step 2  . Tighten the motor ground terminal installation bolt.
2 CHECK VDCCM&H/U MOTOR RELAY. 
  1. Disconnect the connector from the VDCCM&H/U.
  2. Measure the resistance between VDCCM&H/U terminals.

    Terminals 

    No. 23 - No. 22: 

 Is the resistance 1 MΩ or more? Go to step 3  . Replace the VDCCM&H/U. < Refer to VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM& H/U) . >
3 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 only. < Refer to REPLACEMENT , VDC Control Module and Hydraulic Control Unit (VDCCM&H/U). > Go to step 4  .
4 CHECK OTHER DTC DETECTION.  Is any other DTC displayed? Perform the diagnosis according to DTC. < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > Temporary poor contact occurs.
NOTE: Though the ABS warning light remains on at this time, this is normal. Drive the vehicle at 12 km/h (7 MPH) or more in order to turn ABS warning light off. Be sure to drive the vehicle and check that the warning light goes off.
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