LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> ADAS Control Unit (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> C1B57 Around View Monitor Circuit >> ADAS Control Unit >> DTC Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Description

DTC DETECTION LOGIC 

DTC No. CONSULT screen items (Trouble diagnosis content) DTC detection condition
 
C1B57 97 AVM CIRCUIT (Around view monitor circuit) Diagnosis condition When engine is running
Signal (terminal) CAN communication signal
Threshold ADAS control unit detects an error signal that is received from around view monitor control unit via CAN communication
Diagnosis delay time 1 second or less

POSSIBLE CAUSE 

Around view monitor control unit

FAIL-SAFE 

The following systems are canceled:

CONFIRMATION PROCEDURE 

  1. CHECK DTC PRIORITY 

    If DTC "C1B57-97" is displayed with DTC "U1000-01", first diagnose the DTC "U1000-01".

    Is applicable DTC detected?

    >>

    Perform diagnosis of applicable. Refer to DTC Description .

    >>

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Start the engine.
    2. Perform "All DTC Reading" with CONSULT.
    3. Check if the "C1B57-97" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS".

    Is "C1B57-97" detected as the current malfunction?

    >>

    DTC Diagnosis Procedure 

    >>

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

    >>

    Confirmation after repair: INSPECTION END