Nissan Rogue (T33) 2021-Present Service Manual: U1ca2-08 Lin Communication 3

Nissan Rogue (T33) 2021-Present Service Manual / Ventilation, Heater & Air Conditioner :: Heater & Air Conditioning Control System / Automatic Air Conditioning :: Dtc/circuit Diagnosis / U1ca2-08 Lin Communication 3

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
U1CA2-08

LIN communication 3

(Local interconnect network communication 3) 		Diagnosis condition Ignition switch ON
Signal (Terminal) LIN (door motor) signal
Threshold A/C amp. is not transmitting or receiving LIN communication with each door motor
Diagnosis delay time 2 second or more

POSSIBLE CAUSE

  • Harness and connector (door motor circuit is open or shorted to ground)

  • Each door motor

  • A/C amp.

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Start the engine.

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

  3. Check DTC.

Is DTC detected?

YES>>

Refer to 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

CONSULT

  1. Start the engine.

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

  3. Check following DTC.

    DTC

    Items

    (CONSULT screen terms)     		Reference
    U1CAA-02 Mode door motor DTC Description
    U1CAB-02 Intake door motor DTC Description
    U1CAC-02 Air mix door motor 1 DTC Description
    U1CAD-02 Air mix door motor 2 DTC Description
    U1CAE-02 Rear air mix door motor DTC Description

Is DTC detected?

YES>>

Perform DTC diagnosis procedure that is detecting.

NO>>

Replace A/C amp. Refer to Removal and Installation.

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