Nissan Rogue (T33) 2021-Present Service Manual: U2212 Can Comm Err (brake Unit)
DTC Description
DTC DETECTION LOGIC
| DTC | CONSULT screen terms | DTC detection condition | ||
| U2212 | 87 | CAN communication error brake unit | Diagnosis condition | Ignition switch ON |
| Signal (terminal) | CAN communication signal | |||
| Threshold | ECM is not recieving CAN communication signal. | |||
| Diagnosis delay time | 2 seconds or more | |||
POSSIBLE CAUSE
-
Harness or connectors (CAN communication line is open or shorted)
-
ADAS control unit 2
FAIL-SAFE
Engine Control System
Not applicable
Stop/Start System
Not applicable
DTC CONFIRMATION PROCEDURE
CHECK DTC PRIORITY
If DTC U2212 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.
-
Ignition switch OFF and wait at least 10 seconds.
-
Ignition switch ON.
-
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
-
Start engine and let it idle for least 3 seconds.
-
Check 1st trip DTC.
Is DTC U2212 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 U2212 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.
CHECK CAN COMMUNICATION LINE
Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.
>>
INSPECTION END
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REMOVALRemove the instrument lower panel LH. Refer to Removal and Installation.
Remove screws and then remove the switch bracket from the instrument lower panel LH.
Remove automatic back door switch from the switch bracket.
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WARNING
The following limitations apply to the AEB with Pedestrian Detection system. Not following these instructions while driving your Nissan Rogue can lead to serious injury or death.
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