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Home >> Infiniti >> 2016 >> Q50 Base, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 123 (Hybrid Motor System (Diagnostic Trouble Codes (DTCS) P2122-P31FF And Circuit Diagnosis) (Hybrid)) >> DTC / Circuit Diagnosis >> DTC P311F: Pre-Charge Relay >> Component Inspection (System Main Relay 2)

Component Inspection (System Main Relay 2)

WARNING: This page is about a different variant/trim than selected.

  1. CHECK SYSTEM MAIN RELAY 2-1

    1. Disconnect battery junction box harness connector.
    2. Check the continuity between battery junction box harness connector terminals.
      Battery junction box Continuity
      Terminal
      7 8 Existed
    3. Also check harness for short to ground and to power.

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Replace battery junction box. Refer to DISASSEMBLY AND ASSEMBLY .

  2. CHECK SYSTEM MAIN RELAY 2-2

    Check the continuity between battery junction box harness connector terminals as per the following condition.

    Battery junction box Condition Continuity
    Terminal
    22 30 12 V direct current supply between terminals 7 and 8 of battery junction box harness connector Existed
    No current supply Not existed

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Replace battery junction box. Refer to DISASSEMBLY AND ASSEMBLY .

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