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 LOGICWhen the ignition switch is ON, the data length transmitted from each control unit is shorter than the specified length and the status continues for 2 seconds or more. DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
U0300
CAN COMM DATA
(Internal Control Module Software Incompatibility)
Diagnosis condition
When the ignition switch is ON
Signal
CAN communication data
Threshold
The data length transmitted from each control unit is shorter than the specified length and the status
Diagnosis delay time
Continues for 2 seconds or more
POSSIBLE CAUSEControl unit other than TCMFAIL-SAFE
Selector shock is large
Start is slow
Acceleration is slow
Lock-up is not performed
DTC Confirmation Procedure
PREPARATION BEFORE WORK
If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test...
For additional information, refer to “Vehicle
information display” in this section.
Front fog light indicator
light (if so equipped)
The front fog light indicator light illuminates
when the front fog lights are on. For
additional information, refer to “Fog light
switch” in this section...