Nissan Rogue (T33) 2021-Present Service Manual: U0073-00 Control Module Comm Bus a Off
DTC Description
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | ||||
|---|---|---|---|---|---|---|
| U0073 | 00 |
Control module comm Bus A Off (Control module communication Bus A Off) |
1 | Diagnosis condition |
|
|
| Signal (terminal) | CAN communication signal | |||||
| Threshold | When CAN communication signal is not continuously transmitted from ABS actuator and electric unit (control unit). | |||||
| Diagnosis delay time | 2 seconds or more | |||||
| 2 | Diagnosis condition |
|
||||
| Signal (terminal) | CAN communication signal | |||||
| Threshold | When CAN communication signal is not continuously received from ABS actuator and electric unit (control unit). | |||||
| Diagnosis delay time | 2 seconds or more | |||||
POSSIBLE CAUSE
NOTE:
Confirm if DTC is PAST or CRNT. If DTC is CRNT, proceed with Diagnosis Procedure. If DTC is PAST, clear DTC. Do not replace the ABS actuator and electric unit (control unit) for a PAST DTC.
| PAST DTC | CRNT DTC |
|---|---|
|
CAN communication system |
FAIL-SAFE
The following functions are suspended.
-
VDC function
-
TCS function
-
Brake limited slip differential (BLSD) function
-
Brake assist function
-
Brake force distribution function
-
hill start assist function
-
Electric parking brake function
DTC CONFIRMATION PROCEDURE
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always ignition switch OFF (Auto ACC function OFF) before conducting the next test.
>>
GO TO 2.
CHECK DTC DETECTION
CONSULT
-
Ignition switch OFF (Auto ACC function OFF).
-
Start the engine.
NOTE:
Wait at least 10 seconds after start the engine.
-
Perform self-diagnosis for “ABS”.
Is DTC “U0073-00” detected?
YES-1>>“CRNT” is displayed: Refer to Diagnosis Procedure.
YES-2>>“PAST” is displayed: Inspection End (Erase the memory of self-diagnosis results.)
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: Inspection End
Diagnosis Procedure
Refer to Trouble Diagnosis Flow Chart.
Other materials:
Dtc/circuit Diagnosis. Power Supply and Ground Circuit. Sonar Control Unit
Sonar Control Unit
Diagnosis Procedure
CHECK FUSE
Check that the following fuse is not blown (open).
Power source Fuse No. Capacity
ACC power supply
#40
10 A
Is the fuse blown (open)?
YES>>
Be sure to eliminate cause of malfunction before installing new fuse.
NO>&g ...
P26a5 Multi-Way Control Valve Position Sensor
DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
P26A5
00
ENGINE COOLANT B/V A POSI SEN
(Engine coolant bypass valve A position sensor circuit range/performance)
Diagnosis condition
—
Signal (terminal)
Mu ...
Crankshaft Position Sensor
Component Inspection
CHECK CRANKSHAFT POSITION SENSOR (POS)-1
Turn ignition switch OFF.
Loosen the fixing bolt of the sensor.
Disconnect crankshaft position sensor (POS) harness connector.
Remove the sensor.
Visually check the sensor for chipping.
Is the inspection r ...
