Nissan Rogue (T33) 2021-Present Service Manual: C1086-86 Can Comm Err (bcm)

Nissan Rogue (T33) 2021-Present Service Manual / Brakes :: Brake Control System / With Vdc :: Dtc/circuit Diagnosis / C1086-86 Can Comm Err (bcm)

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
C1086 86

CAN comm err (BCM)

[Controller area network communication error (body control module)] 		Diagnosis condition

  • When ignition switch is ON.

  • When the power supply voltage is normal.
Signal (terminal) CAN communication signal
Threshold When a malfunction is detected in BCM system.
Diagnosis delay time 2 seconds or less

POSSIBLE CAUSE

NOTE:

Confirm if DTC is PAST or CRNT. If DTC is CRNT, proceed with Diagnosis Procedure. If DTC is PAST, clear DTC. Do not replace the ABS actuator and electric unit (control unit) for a PAST DTC.

PAST DTC CRNT DTC

  • Harness or connector

  • CAN communication line

  • ABS actuator and electric unit (control unit) power supply system

  • Fuse

  • Fusible link

  • 12V battery

  • Harness or connector

  • CAN communication line

  • BCM

  • ABS actuator and electric unit (control unit)

  • ABS actuator and electric unit (control unit) power supply system

  • Fuse

  • Fusible link

  • 12V battery

FAIL-SAFE

The following functions are suspended.

  • VDC function

  • TCS function

  • ABS function

  • EBD function

  • Brake limited slip differential (BLSD) function

  • Brake assist function

  • Brake force distribution function

  • hill start assist function

  • Electric parking brake function

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always ignition switch OFF (Auto ACC function OFF) before conducting the next test.

>>

GO TO 2.

CHECK DTC DETECTION

CONSULT

  1. Ignition switch OFF (Auto ACC function OFF).

  2. Start the engine.

    NOTE:

    Wait at least 10 seconds after start the engine.

  3. Perform self-diagnosis for “ABS”.

Is DTC “C1086-86” detected?

YES-1>>

“CRNT” is displayed: Refer to Diagnosis Procedure.

YES-2>>

“PAST” is displayed: Inspection End (Erase the memory of self-diagnosis results.)

NO-1>>

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

NO-2>>

Confirmation after repair: Inspection End

Diagnosis Procedure

CHECK BCM SYSTEM

CONSULT

Perform self-diagnosis for “BCM”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT

Check the ABS actuator and electric unit (control unit) power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link.

CHECK CONNECTOR AND TERMINAL

  1. Disconnect 12V battery negative terminal.

  2. Disconnect BCM harness connector.

  3. Disconnect ABS actuator and electric unit (control unit) harness connector.

  4. Check the connector for disconnection or looseness.

  5. Check the terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair / replace harness, connector, or terminal, securely lock the connector. GO TO 4.

PERFORM SELF-DIAGNOSIS

CONSULT

  1. Connect BCM harness connector.

  2. Connect ABS actuator and electric unit (control unit) harness connector.

  3. Connect 12V battery negative terminal.

  4. Erase self-diagnosis result for “ABS”.

  5. Ignition switch OFF (Auto ACC function OFF).

  6. Start the engine.

    NOTE:

    Wait at least 10 seconds after start the engine.

  7. Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Check the DTC. Rfer to DTC Index.

NO>>

Inspection End

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