Nissan Murano: Icc/adas (adas Control Unit) / C1a27-97 Ecd Pwr Suply Circ

Nissan Murano (Z52) 2015-2024 Service Manual / Cruise Control & Driver Assistance / Driver Assistance System :: Adas Control Unit / Dtc/circuit Diagnosis / Icc/adas (adas Control Unit) / C1a27-97 Ecd Pwr Suply Circ

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content)
DTC detection condition
 
C1A27-97

ECD PWR SUPLY CIR

(ECD power supply circuit)
Diagnosis condition
  • When engine is running

  • When MAIN switch of ICC system is ON

Signal (terminal)
Threshold ECD system power supply voltage is excessively low
Diagnosis delay time 60 second or more

POSSIBLE CAUSE

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

  • ABS actuator and electric unit (control unit)

FAIL-SAFE

The following systems are canceled:

  • Vehicle-to-vehicle distance control mode

  • Conventional (fixed speed) cruise control mode

  • Automatic Emergency Braking (AEB) with pedestrian detection

  • Automatic Emergency Braking (AEB)

  • Intelligent Forward Collision Warning (I-FCW)

  • Rear Automatic Braking (RAB)

Confirmation Procedure

CHECK DTC PRIORITY

If DTC “C1A27–97” is displayed with DTC “U1000–01”, “U0415–82” or “U0121–83”, first diagnose the DTC “U1000–01”, “U0415–82” or “U0121–83”.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable.

  • U1000–01: Refer to DTC Description

    .
  • U0415–82: Refer to DTC Description

    .
  • U0121–83: Refer to DTC Description

NO>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Start the engine.

  2. Wait for approximately 1 minute after turning the MAIN switch of ICC system ON.

  3. Perform “All DTC Reading”.

  4. Check if the “C1A27–97” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “C1A27–97” detected as the current malfunction?

YES>>

Refer to DTC Description.

NO>>

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

NO>>

Confirmation after repair: Inspection End

DTC Diagnosis Procedure

CHECK DTC PRIORITY

If DTC “C1A27–97” is displayed with DTC “U1000–01”, “U0415–82” or “U0121–83”, first diagnose the DTC “U1000–01”, “U0415–82” or “U0121–83”.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable.

  • U1000–01: Refer to DTC Description

    .
  • U0415–82: Refer to DTC Description

    .
  • U0121–83: Refer to DTC Description

NO>>

GO TO 2.

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

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

Is the inspection result normal?

YES>>

Perform self-diagnosis of ABS actuator and electric unit (control unit). Refer to DTC Index.

NO>>

Repair the harnesses or connectors.

    C1a24-97 Np Range

    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC detection condition   C1A24-97 NP RANGE (NP range) Diagnosis condition When engine is running When MAIN switch of ICC system is ON When waiting for approximately 5 minutes or more after shifting the selector lever to “P” position...

    C1a34-64 Command Error

    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC detection condition C1A34–64 COMMAND ERROR (Command error) Diagnosis condition When MAIN switch of ICC system is ON When driving the Nissan Murano vehicle Signal (terminal) CAN communication signal Threshold If an error occurs in the command signal that ADAS control unit transmits to ECM via CAN communication Diagnosis delay time 1 second or less POSSIBLE CAUSEADAS control unitFAIL-SAFEThe following systems are canceled: Vehicle-to-vehicle distance control mode Conventional (fixed speed) cruise control mode Automatic Emergency Braking (AEB) Automatic Emergency Braking (AEB) with pedestrian detection Intelligent Forward Collision Warning (I-FCW) Confirmation Procedure CHECK DTC PRIORITY If DTC “C1A34–64” is displayed with DTC “U1000–01”, first diagnose the DTC “U1000–01”...

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