Nissan X-Trail 32. Instruction — part 2218
U1000-01 CAN COMM CIRCUIT
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< DTC/CIRCUIT DIAGNOSIS >
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U1000-01 CAN COMM CIRCUIT
Description
INFOID:0000000010715094
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit communicates data but selectively reads required data only.
DTC Description
INFOID:0000000010715095
DTC DETECTION LOGIC
POSSIBLE CAUSE
• CAN communication malfunction
• Malfunction of BCM
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION
With CONSULT
1.
Drive for several minutes at a speed of 40 km/h (25 MPH) or more.
2.
Stop the vehicle.
3.
Perform self-diagnosis for “AIR PRESSURE MONITOR”.
Is DTC “U1000-01” detected?
YES
>> Proceed to
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010715096
1.
PERFORM SELF-DIAGNOSTIC RESULT
With CONSULT
1.
Turn the ignition switch ON and hold it for 2 seconds or more.
2.
Check the “Self-Diagnostic Result” of “AIR PRESSURE MONITOR”.
Is DTC “U1000-01” detected?
YES
>> Refer to
LAN-33, "CAN COMMUNICATION SYSTEM : CAN System Specification Chart"
.
NO
>> INSPECTION END
DTC No.
CONSULT screen item
(Trouble diagnosis content)
DTC Detection Condition
U1000-01
CAN COMM CIRCUIT
(CAN communication circuit)
BCM is not communicating CAN communication signal for 2 seconds or more.
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< DTC/CIRCUIT DIAGNOSIS >
U1010-49 CONTROL UNIT (CAN)
U1010-49 CONTROL UNIT (CAN)
Description
INFOID:0000000010715097
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit communicates data but selectively reads required data only.
DTC Description
INFOID:0000000010715098
DTC DETECTION LOGIC
POSSIBLE CAUSE
Malfunction of BCM
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION
With CONSULT
1.
Drive for several minutes at a speed of 40 km/h (25 MPH) or more.
2.
Stop the vehicle.
3.
Perform self-diagnosis for “AIR PRESSURE MONITOR”.
Is DTC “U1010-49” detected?
YES >> Proceed
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010715099
1.
CHECK BCM
Check BCM harness connector for disconnection or deformation.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-121, "Removal and Installation"
.
NO
>> Repair or replace error-detected parts.
DTC
CONSULT screen item
(Trouble diagnosis content)
DTC Detection Condition
U1010-49
CONTROL UNIT (CAN)
[Control unit (CAN)]
Detecting error during the initial diagnosis of CAN controller of BCM.
LOW TIRE PRESSURE WARNING LAMP
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< DTC/CIRCUIT DIAGNOSIS >
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LOW TIRE PRESSURE WARNING LAMP
Component Function Check
INFOID:0000000010715100
1.
CHECK THE ILLUMINATION OF THE LOW TIRE PRESSURE WARNING LAMP
Check that the low tire pressure warning lamp is turned OFF after illuminating for approximately 1 second,
when the ignition switch is turned ON.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Perform trouble diagnosis. Refer to
Diagnosis Procedure
INFOID:0000000010715101
1.
POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit. Refer to
BCS-114, "Diagnosis Procedure"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace damaged parts.
2.
PERFORM SELF-DIAGNOSIS
With CONSULT
Perform self-diagnosis for “AIR PRESSURE MONITOR”.
Is any DTC detected?
YES
>> Check the DTC. Refer to
NO
>> GO TO 3.
3.
CHECK LOW TIRE PRESSURE WARNING LAMP SIGNAL
With CONSULT
1.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
2.
Select “ACTIVE TEST” in “AIR PRESSURE MONITOR”.
3.
Touch “WARNING LAMP” to turn ON the low tire pressure warning lamp.
When “ACTIVE TEST” is performed, does the low tire pressure warning lamp in the combination meter turn
ON?
YES
>> Perform combination meter diagnosis. Refer to
.
NO
>> Replace the BCM. Refer to
BCS-121, "Removal and Installation"
.
WT-48
< SYMPTOM DIAGNOSIS >
TPMS
SYMPTOM DIAGNOSIS
TPMS
Symptom Table
INFOID:0000000010715102
LOW TIRE PRESSURE WARNING LAMP SYMPTOM CHART
Diagnosis items
Symptom
(Ignition switch
ON)
Low tire pressure warning lamp
Cause
Action
Low tire pres-
sure warning
lamp
The low tire pres-
sure warning lamp
illuminates for 1
second, then turns
OFF.
Wake-up operation for all
tire pressure sensors at
wheels is completed.
No system malfunctions
The low tire pres-
sure warning lamp
turns ON and stays
illuminated.
Low tire pressure
Check the tire pressure for
all wheels and adjust to the
specified value. Refer to
.
Tire pressure monitoring
system configuration do
not be performed.
Perform configuration. Re-
fer to
.
Tire pressure sensor ID
registration do not be
performed.
Perform ID registration. Re-
fer to
.
SEIA0592E
SEIA0598E
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