Nissan Sentra Service Manual: U1000 CAN Comm circuit
DTC Logic
DTC DETECTION LOGIC
| DTC | Display Item | Malfunction detected condition | Possible causes |
| U1000 | CAN COMM CIRCUIT | When CAN communication signal is not continuously received for 2 seconds or more | CAN communication system malfunction |
Diagnosis Procedure
1.CHECK DTC DETECTION
With CONSULT
-
Turn ignition switch ON.
-
Perform self diagnostic result.
Is DTC U1000 detected? YES >> Proceed to diagnosis procedure. Refer to LAN-16, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-39, "Intermittent Incident".
C1164, C1165, C1166, C1167 CV/SV System
DTC Logic
Dtc detection logic
DTC
Display Item
Malfunction detected condition
Possible causes
C1164
CV 1
When a malfunction is detected in cut valve 1.
Har ...
U1002 System comm (CAN)
DTC Logic
DTC DETECTION LOGIC
DTC
Display item
Malfunction detected condition
Possible cause
U1002
SYSTEM COMM(CAN)
When ABS actuator and electric unit (control unit) ...
Other materials:
EPS Warning lamp
Component Function Check
1.CHECK THE ILLUMINATION OF THE EPS WARNING LAMP
Check that the EPS warning lamp turns ON when ignition switch
turns ON. Then, EPS warning lamp turns
OFF after the engine is started.
Is the inspection result normal?
YES >> Inspection End.
NO >> Perfo ...
VDC OFF Indicator lamp
Description
Component Function Check
1.CHECK VDC OFF INDICATOR LAMP FUNCTION
Check that VDC OFF indicator lamp in combination meter turns ON
for approximately 2 seconds after ignition
switch is turned ON.
Is the inspection result normal?
YES >> Inspection End.
NO >> Proc ...
General Precautions
Always use a 12 volt battery as power source.
Do not attempt to disconnect battery cables while engine is
running.
Before connecting or disconnecting the ECM harness connector,
turn ignition switch OFF and disconnect negative battery
cable. Failure to do so may damage the ECM because
...
