Nissan Frontier D40. Manual — part 350
U0101 CAN COMM CIRCUIT
EC-91
< COMPONENT DIAGNOSIS >
[QR25DE]
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U0101 CAN COMM CIRCUIT
Description
INFOID:0000000005273050
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 transmits/receives data but selectively reads required data only.
On Board Diagnosis Logic
INFOID:0000000005273051
This self-diagnosis has the one trip detection logic.
DTC Confirmation Procedure
INFOID:0000000005273052
1.
Turn ignition switch ON and wait at least 3 seconds.
2.
Check DTC.
3.
If DTC is detected, go to
Diagnosis Procedure
INFOID:0000000005273053
LAN-14, "Trouble Diagnosis Flow Chart"
.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
U0101
0101
Lost communication
with TCM
When ECM is not transmitting or receiving CAN
communication signal of OBD (emission related di-
agnosis) with TCM for 2 seconds or more.
• CAN communication line between
TCM and ECM
• CAN communication line open or
shorted
EC-92
< COMPONENT DIAGNOSIS >
[QR25DE]
U0140 CAN COMM CIRCUIT
U0140 CAN COMM CIRCUIT
Description
INFOID:0000000005273054
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 transmits/receives data but selectively reads required data only.
On Board Diagnosis Logic
INFOID:0000000005273055
This self-diagnosis has the one trip detection logic.
DTC Confirmation Procedure
INFOID:0000000005273056
1.
Turn ignition switch ON and wait at least 3 seconds.
2.
Check DTC.
3.
If DTC is detected, go to
Diagnosis Procedure
INFOID:0000000005273057
Go to
LAN-14, "Trouble Diagnosis Flow Chart"
.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
U0140
0140
Lost communication
with BCM
When ECM is not transmitting or receiving CAN
communication signal of OBD (emission related di-
agnosis) with BCM for 2 seconds or more.
• CAN communication line between
BCM and ECM
• CAN communication line open or
shorted
U1001 CAN COMM CIRCUIT
EC-93
< COMPONENT DIAGNOSIS >
[QR25DE]
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U1001 CAN COMM CIRCUIT
Description
INFOID:0000000005273058
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 transmits/receives data but selectively reads required data only.
On Board Diagnosis Logic
INFOID:0000000005273059
The MIL will not light up for this self-diagnosis.
DTC Confirmation Procedure
INFOID:0000000005273060
1.
Turn ignition switch ON and wait at least 3 seconds.
2.
Check 1st trip DTC.
3.
If 1st trip DTC is detected, go to
.
Diagnosis Procedure
INFOID:0000000005273061
LAN-48, "CAN System Specification Chart"
.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
U1001
1001
CAN communication line
When ECM is not transmitting or receiving CAN
communication signal other than OBD (emission
related diagnosis) for 2 seconds or more.
• Harness or connectors
(CAN communication line is open or
shorted)
EC-94
< COMPONENT DIAGNOSIS >
[QR25DE]
P0011 IVT CONTROL
P0011 IVT CONTROL
On Board Diagnosis Logic
INFOID:0000000005273062
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode.
DTC Confirmation Procedure
INFOID:0000000005273063
CAUTION:
Always drive at a safe speed.
NOTE:
• If DTC P0011 is displayed with DTC P0075, first perform trouble diagnosis for DTC P0075. Refer to
.
• If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 10V and 16V at
idle.
WITH CONSULT-III
1.
Start engine and warm it up to the normal operating temperature.
2.
Maintain the following conditions for at least 10 consecutive seconds.
Hold the accelerator pedal as steady as possible.
3.
Stop vehicle with engine running and let engine idle for 10 seconds.
4.
Check 1st trip DTC.
5.
If the 1st trip DTC is detected, go to
.
If the 1st trip DTC is not detected, go to next step.
6.
Maintain the following conditions for at least 20 consecutive seconds.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
P0011
0011
Intake valve timing
control performance
There is a gap between angle of target and
phase-control angle degree.
• Crankshaft position sensor (POS)
• Camshaft position sensor (PHASE)
• Intake valve control solenoid valve
• Accumulation of debris to the signal pick-up
portion of the camshaft
• Timing chain installation
• Foreign matter caught in the oil groove for in-
take valve timing control
Detected items
Engine operating condition in fail-safe mode
Intake valve timing control
The signal is not energized to the solenoid valve and the valve control does not function
ENG SPEED
1,200 - 2,000 rpm (A constant rotation is maintained.)
COOLAN TEMP/S
More than 60
°
C (140
°
F)
B/FUEL SCHDL
More than 4.3 msec
Shift lever
P or N (A/T), Neutral (M/T)
ENG SPEED
1,200 - 3,175 rpm (A constant rotation is maintained.)
COOLAN TEMP/S
65 - 120
°
C (149 - 248
°
F)
Shift lever
1st or 2nd position
Driving location uphill
Driving vehicle uphill
(Increased engine load will help maintain the driving
conditions required for this test.)
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