Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: B2490-13 Front Seat Heater Lh

Nissan Rogue (T33) 2021-Present Service Manual / Body Interior :: Seat / Dtc/circuit Diagnosis :: B2490-13 Front Seat Heater Lh

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content) 		DTC detection condition
B2490-13

FRONT SEAT HEATER LH

(Front seat heater LH) 		Diagnosis condition Engine running
Signal (terminal) —
Threshold CPU in front seat heater LH detect heating wire resistance more than 2.6 Ω
Diagnosis delay time 1.5 seconds or more

POSSIBLE CAUSE

  • Harness or connectors (front seat heater LH ground circuit is open)

  • Seat cushion heater LH

  • Front seat back heater LH

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Start the engine.

  2. Select “Self diagnosis result” mode of “HVAC”.

Is 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 FRONT SEAT HEATER LH GROUND CIRCUIT (OPEN)

  1. Ignition switch OFF.

  2. Disconnect front seat heater LH connector.

  3. Check continuity between front seat heater LH harness connector and ground.

    Front seat heater LH ー Continuity
    Connector Terminal
    B204 2 Ground Yes
    4

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the harness or connector.

CHECK FRONT SEAT BACK HEATER LH CIRCUIT (OPEN)

Check continuity between front seat back heater LH harness connector and front seat heater LH harness connector.

Front seat back heater LH Front seat heater LH Continuity
Connector Terminal Connector Terminal
B209 2 B220 1 Yes

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace seat cushion heater LH. Refer to Disassembly and Assembly.

CHECK FRONT SEAT BACK HEATER LH GROUND CIRCUIT (OPEN)

  1. Disconnect front seat back heater LH connector.

  2. Check continuity between front seat back heater LH harness connector and front seat heater LH harness connector.

    Front seat back heater LH Front seat heater LH Continuity
    Connector Terminal Connector Terminal
    B209 1 B220 4 Yes

Is the inspection result normal?

YES>>

Replace front seat back heater LH. Refer to Disassembly and Assembly.

NO>>

Replace seat cushion heater LH. Refer to Disassembly and Assembly.

    Basic Inspection. Diagnosis and Repair Work Flow
    Work Flow OVERALL SEQUENCEDETAILED FLOWGET INFORMATION FOR SYMPTOM Get detailed information from the customer about the symptom (the condition and the environment when the incid...
    Dtc/circuit Diagnosis. B2490-19 Front Seat Heater Lh
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC detection condition B2490-19 FRONT SEAT HEATER LH (Front seat heater LH) Diagnos...

    Other materials:

    If your vehicle overheats
    WARNING Never continue driving if your vehicle overheats — this can lead to engine failure or even a vehicle fire. Never open the hood if steam is coming out. Never remove the radiator or coolant reservoir cap when the engine is hot. Pressurized coolant can spray out and cause serious ...

    Ecu Diagnosis Information. Hands Free Sensor Control Unit
    Reference Value TERMINAL LAYOUTPHYSICAL VALUES Terminal No. (Wire color) Description Condition Voltage (Approx.) (+) (–) Signal name Input/Output 1 (GR) Ground Serial communication Input/Output Ignition switch ON 2 (L) Ground Power supply (BAT) ...

    Kr15ddt. System Description
    Component Parts Refrigeration System Component Parts Location In the heater & cooling unit assembly No. Location Function Internal heat exchanger pipe Refer to Internal Heat Exchanger Pipe. A/C Compressor Refer to A/C Compressor. Refrigerant pressu ...