LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2017 >> QX30 Luxury, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (1 Of 5) >> DTC/Circuit Diagnosis >> DTC U0155: Can Communication (Combination Meter) >> Fuel Pump Control Module (FPCM) >> Diagnosis Procedure >> 2WD
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis Procedure: 2WD

  1. PERFORM CAN DIAGNOSIS

    G-20 With CONSULT

    Perform "CAN Diagnosis" using CONSULT.

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Perform the trouble diagnosis for CAN communication. Refer to TROUBLE DIAGNOSIS FLOW CHART .

  2. CHECK SELF-DIAGNOSTIC RESULT

    G-20 With CONSULT

    Perform "All DTC reading".

    Is the DTC related to communication error with ECM detected in other ECUs?

    YES 

    Replace ECM. Refer to REMOVAL AND INSTALLATION .

    NO 

    Replace combination meter. Refer to REMOVAL AND INSTALLATION .

scientia non olet · About LEMON Manuals