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Home >> Infiniti >> 2017 >> Q50 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 245 (Hybrid Motor System (Diagnostic Trouble Codes (DTCS) P2122-P31FF And Circuit Diagnosis) (Hybrid)) >> DTC / Circuit Diagnosis >> DTC P3150: Engine Start System >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

  1. CHECK FUEL LEVEL

    Check that the fuel level is enough.

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Refuel.

  2. CHECK DTC WITH ECM

    Perform self-diagnosis of ECM. Refer to CONSULT FUNCTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Perform diagnosis procedure corresponding to DTC indicated. Refer to DTC INDEX .

  3. CHECK ENGINE CONTROL SYSTEM

    According to the symptom table of ENGINE CONTROL SYSTEM, check the root cause. Refer to "HARD/NO START/RESTART" in SYMPTOM TABLE .

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair or replace error-detected parts.

  4. CHECK CLUTCH 1 DISC

    Check clutch 1 disc thickness. Refer to INSPECTION .

    Is the inspection result normal?

    YES 

    Perform INTERMITTENT INCIDENT .

    NO 

    Replace clutch and clutch cover. Refer to REMOVAL AND INSTALLATION .