Nissan Versa (N17): U0073 Communication bus a off
DTC Logic
| DTC | Trouble diagnosis name | DTC detecting condition | Possible causes |
| U0073 |
Control Module Communication Bus "A" Off |
When the ignition switch is ON, TCM detects a bus-off error continuously for 2 seconds or more. | Harness or connector (CAN communication line is open or shorted) |
DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn the ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
- Start engine and wait for at least 5 seconds.
- Check the DTC.
Is "U0073" detected?
YES >> Go to TM, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
For the diagnosis procedure, refer to LAN, "Trouble Diagnosis Flow Chart".
Line pressure test
Work Procedure INSPECTION Inspect the amount of engine oil. Replenish the engine oil if necessary. Refer to LU, "Inspection". Drive for about 10 minutes to warm up the vehicle so ...
U0100 Lost communication (ECM A)
DTC Logic DTC DETECTION LOGIC DTC Trouble diagnosis name DTC detection condition Possible causes U0100 Lost Communication With ECM/PCM "A" When the ignition switch ...
Other materials:
Front oil seal
FRONT OIL SEAL : Removal and Installation
REMOVAL
1. Remove the following parts.
Remove wheel and tire.
Front fender protector (RH).
Drive belt.
Crankshaft pulley.
2. Remove front oil seal with ...
Engine protection control at low engine oil pressure
Engine protection control at low engine oil pressure : system diagram
Engine protection control at low engine
oil pressure : system description
INPUT/OUTPUT SIGNAL CHART
Sensor
Input signal to ECM
ECM function
Actuator
Engine oil pressure sensor
Engine pressure
...
Categories
- Manuals Home
- Nissan Versa Owners Manual
- Nissan Versa Service Manual
- Video Guides
- Questions & Answers
- External Resources
- Latest Updates
- Most Popular
- Sitemap
- Search the site
- Privacy Policy
- Contact Us
0.0064