Nissan Murano: 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 |
|
| Signal (terminal) |
— |
| Threshold |
ECD system power supply voltage is excessively low |
| Diagnosis delay time |
60 second or more |
POSSIBLE CAUSE
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
-
Start the engine.
-
Wait for approximately 1 minute after turning the MAIN switch of ICC system ON.
-
Perform “All DTC Reading”.
-
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.
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...
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”...
Other information:
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
U0104-82
ADAS CAN CIR1
(ADAS control unit CAN circuit 1)
Diagnosis condition
When ignition switch is ON.
Signal (terminal)
–
Threshold
Side radar detected an error of ITS communication signal that was received from ADAS control unit
Diagnosis delay time
–
POSSIBLE CAUSE
ADAS control unit
Side radar RH
FAIL-SAFEThe following systems are canceled:
Blind Spot Warning (BSW)
Rear Cross Traffic Alert (RCTA)
DTC Confirmation Procedure
CHECK DTC PRIORITY
If DTC “U0104-82” is displayed with DTC “U1000-01”, first diagnose the DTC “U1000-01”...
Values on the Diagnosis Tool
NOTE:
The following table includes information (items) inapplicable to this Nissan Murano vehicle: For information (items) applicable to this vehicle, refer to CONSULT display items.
Monitor item Condition Value/Status
STOP LAMP SW
Brake pedal: Depressed
On
Brake pedal: Released
Off
ENG SPEED SIG
Engine stopped
(Engine speed: Less than 400 rpm)
Stop
Engine running
(Engine speed: 400 rpm or more)
Run
ETS ACTUATOR
Engine stopped (Ignition switch: ON)
Off
Engine running
On
4WD WARN LAMP
AWD warning icon/display: ON
On
AWD warning icon/display: OFF
Off
4WD MODE SW
Always
AUTO
4WD MODE MON
Always
AUTO
DIS-TIRE MONI
Nissan Murano Vehicle running with normal size tire installed
0 – 4 mm
Nissan Murano Vehicle running with improper size tire installed (Front/rear tire size difference, wear condition)
4 – 8 mm, 8 – mm
P BRAKE SW
Parking brake operated
On
Parking brake not operated
Off
BATTERY VOLT
Always
Battery voltage
THRTL POS SEN
When depressing accelerator pedal
(Value rises gradually in response to throttle position...