Nissan Rogue (T33) 2021-Present Service Manual: U0284 Active Grille Shutter

Nissan Rogue (T33) 2021-Present Service Manual / Engine :: Engine Control System / Kr15ddt :: Dtc/circuit Diagnosis / U0284 Active Grille Shutter

DTC Description

DTC DETECTION LOGIC

When ECM cannot receive the engine communication signal from active grille shutter.

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detecting condition
U0284 00

LOST COMM (A/GRLL SHTTR MDL A)

(Lost communication with active grille air shutter module A) 		Diagnosis condition Ignition switch ON
Signal (terminal) Engine communication signal
Threshold ECM cannot receive the engine communication signal from active grille shutter
Diagnosis delay time —

POSSIBLE CAUSE

  • Harness and connectors (Engine communication line is open or circuit shorted.)

  • Active grille shutter

FAIL-SAFE

Not applicable

DTC Confirmation Procedure

CHECK DTC PRIORITY

If DTC U0284 is displayed with another DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable. Refer to DTC Index.

NO>>

GO TO 2.

PRECONDITIONING

If another DTC Confirmation Procedure is conducted just before this procedure, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is 10 V or more with ignition switch ON.

>>

GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Turn ignition switch ON and wait at least 5 seconds.

  2. Check 1st trip DTC.

Is 1st trip DTC detected?

YES>>

Refer 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 DTC PRIORITY

If DTC U0284 is displayed with another DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable. Refer to DTC Index.

NO>>

GO TO 2.

CHECK ACTIVE GRILLE SHUTTER POWER SUPPLY

  1. Turn ignition switch OFF.

  2. Disconnect active grille shutter harness connector.

  3. Turn ignition switch ON.

  4. Check the voltage between active grille shutter harness connector and ground as follows.

    + − Condition

    Voltage

    (Approx.)
    Active grille shutter
    Connector Terminal
    E46 1 Ground Ignition switch: ON Battery voltage
    Ignition switch: OFF 0 V

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 3.

CHECK ACTIVE GRILLE SHUTTER POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF

  2. Disconnect IPDM E/R harness connector.

  3. Check the continuity between active grille shutter harness connector and IPDM E/R harness connector.

    Active grille shutter IPDM E/R Continuity
    Connector Terminal Connector Terminal
    E46 1 E119 8 Existed

Is the inspection result normal?

YES>>

Perform trouble diagnosis for power supply circuit.

NO>>

Repair or replace the error-detected parts.

CHECK ACTIVE GRILLE SHUTTER GROUND CIRCUIT

  1. Turn ignition switch OFF

  2. Check the continuity between active grille shutter harness connector and ground.

    Active grille shutter − Continuity
    Connector Terminal
    E46 4 Ground Existed

  3. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair open circuit, short to ground or short to power in harness or connectors.

CHECK ACTIVE GRILLE SHUTTER INPUT SIGNAL CIRCUIT

  1. Disconnect ECM harness connector.

  2. Check the continuity between ECM harness connector and active grille shutter harness connector.

+ – Continuity
ECM Active grille shutter
Connector Terminal Connector Terminal
F72 21 E46 3 Existed

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace the error-detected parts.

CHECK ACTIVE GRILLE SHUTTER

Check active grille shutter. Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace active grille shutter. Refer to Removal and Installation.

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