LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2017 >> QX60 Hybrid, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (Hybrid) (2 Of 3) >> DTC/Circuit Diagnosis >> DTC P0420: Three Way Catalyst Function >> Component Function Check >> Diagnostic Test

Diagnostic Test

  1. PERFORM COMPONENT FUNCTION CHECK

    G-21 Without CONSULT

    1. Perform INSPECTION MODE 5. Refer to DESCRIPTION .
    2. Start engine and warm it up to the normal operating temperature.
    3. Turn ignition switch OFF and wait at least 10 seconds.
    4. Start engine and keep the engine speed at 3, 000 rpm for at least 1 minute under no load.
    5. Perform INSPECTION MODE 5. Refer to DESCRIPTION .
    6. Let engine idle for 1 minute.
    7. Open engine hood.
    8. Check the voltage between ECM harness connector terminals as follows.
      ECM Condition Voltage
      Connector + -
      Terminal Terminal
      F52 62 63 Keeping engine speed at 3, 000 rpm constant under no load The voltage fluctuation cycle takes more than 5 seconds.
      • 1 cycle: 0.6 - 1.0 → 0 - 0.3 → 0.6 - 1.0

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Proceed to DIAGNOSIS PROCEDURE .

scientia non olet · About LEMON Manuals