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Home >> Subaru >> 2016 >> Crosstrek Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 31 (Hybrid Electric Vehicle System (Diagnostics) (Hybrid)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P1C35: Invalid Data Received From Dc/Dc Converter >> Wiring Diagram

DTC P1C35: Invalid Data Received From Dc/Dc Converter: Wiring Diagram

WARNING: This page is about a different car, the 2015 Subaru XV Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.

Hybrid system < Ref. to WIRING DIAGRAM , Hybrid Electric Vehicle System.>

Fig 1: Manufacturer Controlled DTC - Wiring Diagram
G09479276Courtesy of SUBARU OF AMERICA, INC.
DTC PROCEDURE

Step Check Yes No
1 CHECK DTC. 
  1. Start the engine.
  2. Read the DTC. < Ref. to DRIVE MOTOR CONTROL SYSTEM , OPERATION, Read Diagnostic Trouble Code (DTC).>
 Is DTC P1C35 detected? (current malfunction) Go to step 2  . Even if DTC is detected, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
2 CHECK GROUND WIRE. 
  1. Turn the ignition to OFF.
  2. Disconnect the ground cable of the 12 volt auxiliary battery, and as for the 12 volt engine restart battery, disconnect the ground cable from the 12V engine restart battery sensor. < Ref. to BATTERY , NOTE, Note.>
  3. Remove the service disconnect plug. < Ref. to SERVICE PLUG .>
  4. Wait for 10 minutes.
  5. Check the fastening area shown in the margin.
 Is the condition normal? (Check for loose bolts, insecure connection, foreign matter caught, etc.) Go to step 3  . Retighten the bolts. Or replace the harness.
3 CHECK HARNESS (SHORT TO OTHER SIGNAL). 
  1. Disconnect the drive motor inverter connector.
  2. Disconnect the intermediate connector (R436).
  3. Using a tester, measure the resistance between DMCM connector and individual connectors of drive motor inverter.

    Connector & terminal: 

    (R443) No. 20 - (R442) No. 1 - 22: 

    (R443) No. 20 - (R443) No. 1 - 26: 

    (R443) No. 20 - (R436) No. 1 - 8: 

    (R443) No. 20 - (R432) No. 7: 

 Is the resistance 1 MΩ or more? Go to step 4  . Repair short circuit in harness between DMCM connector and DC/DC converter connector, or repair the intermediate connector.
4 CHECK DC/DC CONVERTER. 
  1. Replace the DC/DC converter. < Ref. to DC/DC CONVERTER .>
  2. Perform the Inspection Mode. < Ref. to INSPECTION MODE .>
 Is the same DTC detected? (current malfunction) Replace DMCM. < Ref. to appropriate DRIVE MOTOR CONTROL MODULE in Continuously Variable Transmission TH58A article.> Problem is present in DC/DC converter.
NOTE:
Fig 2: Identifying Undrside Of Manufacturer Controlled DTC
G09479290Courtesy of SUBARU OF AMERICA, INC.
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