Nissan Rogue (T33) 2021-Present Service Manual: P064a Fuel Pump Control Module

Nissan Rogue (T33) 2021-Present Service Manual / Engine :: Engine Control System / Kr15ddt :: Dtc/circuit Diagnosis / P064a Fuel Pump Control Module

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
P064A 00

Fuel pump control module A

(Fuel Pump Control Module "A") 		Diagnosis condition Engine running
Signal (terminal) —
Threshold Voltage signal transmitted from FPCM to ECM is higher/lower than voltage in the specified range
Diagnosis delay time —

POSSIBLE CAUSE

  • Harness or connectors

    (Fuel pump and FPCM circuit is open or shorted.)

  • Fuel pump and FPCM

  • ECM

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.

  2. Turn ignition switch ON.

  3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

  • Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.

  • Before performing the following procedure, check that the engine coolant temperature is −10°C (14°F) or more.

>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Start engine and let it idle for at least 5 seconds.

    If engine does not start, crank engine for at least 5 seconds.

  2. Check DTC.

Is DTC detected?

YES>>

Proceed to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK FPCM POWER SUPPLY

  1. Ignition switch OFF

  2. Disconnect FPCM harness connector.

  3. Ignition switch ON.

  4. Check the voltage between FPCM harness connector and ground.

    Fuel level sensor unit and fuel pump Ground Condition

    Voltage

    (Approx.)
    Connector Terminal
    B97 6 — For 1 second after turning ignition switch ON Battery voltage
    More than 1 second after turning ignition switch ON 0 V

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Perform the trouble diagnosis for power supply circuit.

CHECK FPCM GROUND CIRCUIT

  1. Ignition switch OFF

  2. Check the continuity between FPCM harness connector and ground.

    Fuel level sensor unit and fuel pump Ground Continuity
    Connector Terminal
    B97 3 ― Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace error-detected parts.

CHECK FPCM SIGNAL CIRCUIT-1

  1. Ignition switch OFF

  2. Disconnect FPCM harness connector and ECM connector.

  3. Check the continuity between FPCM harness connector and ECM harness connector.

    ECM Fuel level sensor unit and fuel pump Continuity
    Connector Terminal Connector Terminal
    E21 138 B97 5 Existed
    144 4

  4. Also check harness for short to ground.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts.

REPLACE FUEL LEVEL SENSOR UNIT AND FUEL PUMP

  1. Replace fuel level sensor unit and fuel pump. Refer to Removal and Installation.

  2. Perform DTC confirmation procedure again. Refer to DTC Description.

  3. Check the DTC.

Is the DTC P064A displayed again?

YES>>

GO TO 5.

NO>>

INSPECTION END

REPLACE ECM

  1. Replace ECM. Refer to ECM : Removal & Installation.

  2. Perform DTC confirmation procedure again. Refer to DTC Description.

  3. Check the DTC.

Is the DTC P064A displayed again?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

INSPECTION END

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