Nissan Rogue (T33) 2021-Present Service Manual: B20c8-14 Ecv (electrical Control Valve)

Nissan Rogue (T33) 2021-Present Service Manual / Ventilation, Heater & Air Conditioner :: Heater & Air Conditioning Control System / Manual Air Conditioning :: Dtc/circuit Diagnosis / B20c8-14 Ecv (electrical Control Valve)

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
B20C8–14

Compressor (ECV)

[Compressor (electrical control valve) 		[CIRC SHORT TO GRND OR OPEN] Diagnosis condition When A/C switch is ON
Signal (Terminal) ECV control signal
Threshold ECV control signal circuit is shorted to ground or open
Diagnosis delay time 25 seconds or more

POSSIBLE CAUSE

  • Fuse

  • Harness or connectors (ECV control signal circuit is shorted to ground or open)

  • A/C compressor

  • IPDM E/R

FAIL-SAFE

Inhibit A/C compressor (ECV) operation

DTC CONFIRMATION PROCEDURE

PERFORM SELF DIAGNOSIS

CONSULT

  1. Ignition switch ON.

  2. Select "Self diagnosis result" mode of "IPDM E/R".

  3. Clear all stored DTCs.

  4. Ignition switch OFF.

  5. Start the engine.

  6. A/C switch ON and blower ON.

  7. Wait a few seconds.

  8. Check DTCs in IPDM E/R.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO>>

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

NO>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

CHECK FUSE

  1. Ignition switch OFF.

  2. Check that the following fuse is not blown (open).

    Unit Location Fuse No. Capacity
    A/C compressor IPDM E/R 71 10 A

Is the fuse blown (open)?

YES>>

Replace the blown (open) fuse after repairing the affected circuit.

NO>>

GO TO 2.

CHECK ECV POWER SUPPLY CIRCUIT

  1. Disconnect A/C compressor harness connector.

  2. Ignition switch ON.

  3. Check voltage between A/C compressor harness connector and ground.

    + (−)

    Voltage

    (Approx.)
    A/C compressor
    Connector Terminal
    F15 3 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 3.

CHECK ECV POWER SUPPLY CIRCUIT FOR OPEN

  1. Ignition switch OFF.

  2. Disconnect IPDM E/R harness connector.

  3. Check continuity between A/C compressor harness connector and IPDM E/R harness connector.

    A/C compressor IPDM E/R Continuity
    Connector Terminal Connector Terminal
    F15 3 F35 71 Yes

Is the inspection result normal?

YES>>

Replace IPDM E/R. Refer to Removal and Installation.

NO>>

Repair harness or connector.

CHECK ECV CONTROL SIGNAL CIRCUIT FOR OPEN

  1. Ignition switch OFF.

  2. Disconnect IPDM E/R harness connector.

  3. Check continuity between A/C compressor harness connector and IPDM E/R harness connector.

    A/C compressor IPDM E/R Continuity
    Connector Terminal Connector Terminal
    F15 4 F42 98 Yes

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair harness or connector.

CHECK ECV CONTROL SIGNAL CIRCUIT FOR SHORT

Check continuity between A/C compressor harness connector and ground.

A/C compressor (—) Continuity
Connector Terminal
F15 4 Ground No

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair harness or connector.

CHECK ECV

Check ECV. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Replace IPDM E/R. Refer to Removal and Installation.

NO>>

Replace a/c compressor. Refer to Removal and Installation.

Component Inspection

CHECK ECV

  1. Ignition switch OFF.

  2. Check continuity between A/C compressor terminals.

Terminal Continuity
3 4 Yes

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace a/c compressor. Refer to Removal and Installation.

    B20c7-15 A/c Clutch
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B20C7–15 A/C clutch (A/C clutch) [CIRC SHORT TO BATT OR OP...
    B24a0-49 A/c Auto Amp.
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B24A0-49 A/C AUTO AMP. (Air conditioning automatic amplifier...

    Other materials:

    Settings
    Basic information The settings menu in the Nissan Rogue allows the user to adjust what appears on the vehicle information display and customize various onboard functions: VDC Setting Driver Assistance Head-Up Display (if so equipped) ECO Mode Setting TPMS Setting Clock Vehicle Settings Main ...

    Wiring Diagram. Ground Distribution
    Body Harness Wiring Diagram Refer to Wiring Diagram. Engine Room Harness Wiring Diagram Refer to Wiring Diagram. Engine Control Harness Wiring Diagram ENGINE CONTROL HARNESSRefer to Wiring Diagram.BATTERY CABLERefer to Wiring Diagram. Main Harness Wiring Diagram MAIN HARNESS - USA PRODUCTIONRef ...

    Precaution. Precautions
    Precautions for Removing Battery Terminal With the adoption of Auto ACC function, ACC power is automatically supplied by operating the Intelligent Key or remote keyless entry or by opening/closing the driver side door. In addition, ACC power is supplied even after the ignition switch is i ...