Nissan Rogue (T33) 2021-Present Service Manual: U1ca1-08 Lin Communication 2

Nissan Rogue (T33) 2021-Present Service Manual / Ventilation, Heater & Air Conditioner :: Heater & Air Conditioning Control System / Automatic Air Conditioning :: Dtc/circuit Diagnosis / U1ca1-08 Lin Communication 2

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
U1CA1-08

LIN communication 2

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

POSSIBLE CAUSE

  • A/C switch assembly

  • Rear air control (with rear air control)

  • A/C amp.

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Ignition switch ON.

  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. Ignition switch ON.

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

  3. Check following DTC.

    DTC

    Items

    (CONSULT screen terms)     		Reference
    B24B4-02 A/C CONTROL COMM DTC Description
    U1CB1-02 A/C control 2 communication 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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