Nissan Rogue (T33) 2021-Present Service Manual: U2248 Can Comm Circuit
DTC Description
DTC DETECTION LOGIC
| DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | ||
| U2248 | 83 |
CAN comm err (brake control unit) [CAN comm err (brake control unit)] |
Diagnosis condition | Ignition switch ON |
| Signal (terminal) | CAN communication signal | |||
| 87 | Threshold | ECM is not receiving CAN communication signal other than OBD (emission related diagnosis). | ||
| Diagnosis delay time | 2 seconds or more | |||
POSSIBLE CAUSE
-
Harness or connectors (CAN communication line is open or shorted)
-
ABS actuator and electric unit
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
CHECK DTC PRIORITY
If DTC U2248 is displayed with DTC P0607, first perform the confirmation procedure (trouble diagnosis) for DTC P0607.
Is DTC P0607 detected?
YES>>Proceed to DTC Description.
NO>>GO TO 2.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
-
Turn ignition switch OFF and wait at least 10 seconds.
-
Turn ignition switch ON.
-
Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
>>
GO TO 3.
PERFORM DTC CONFIRMATION PROCEDURE
-
Turn ignition switch ON and wait at least 3 seconds.
-
Check 1st trip DTC.
Is DTC U2248 detected?
YES>>Refer to Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: INSPECTION END
Diagnosis Procedure
CHECK DTC PRIORITY
If DTC U2248 is displayed with DTC P0607, first perform the confirmation procedure (trouble diagnosis) for DTC P0607.
Is DTC P0607 detected?
YES>>Proceed to DTC Description.
NO>>Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.
Other materials:
P2481 Exhaust Gas Temperature Sensor
DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P2481
00
Exhaust gas temp sensor bank 1
(Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 5)
Diagnosis condition
Ignition switch ON
Signal
— ...
Transfer: Ty92a. Basic Inspection
Diagnosis and Repair Work Flow
Work Flow
DETAILED FLOWINTERVIEW FROM THE CUSTOMER
Clarify customer complaints before inspection. First of all, perform
an interview utilizing Diagnostic Work Sheet and reproduce symptoms as
well as fully understand it. Ask customer about his/her complaints
ca ...
How to Erase Permanent Dtc
Description
OUTLINEWhen a DTC is stored in control moduleWhen
a DTC is stored in control module and MIL is ON, a permanent DTC is
erased with MIL shutoff if the same malfunction is not detected after
performing the driving pattern for MIL shutoff three times in a raw. *1:
When the same mal ...
