Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: U2152-87 Can Comm Err (adas Control Unit 2)
DTC Description
DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-Nissan Ariya vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern Nissan Ariya vehicle is equipped with many electronic control unit, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen items (Trouble diagnosis content) | DTC Detection Condition | |
|---|---|---|---|
| U2152-87 |
CAN comm err (ADAS control unit) [CAN communication error (ADAS control unit)] |
Diagnosis condition | Ignition switch is ON. |
| Signal (terminal) | CAN communication signal | ||
| Threshold | BCM cannot communicate CAN communication signal. | ||
| Diagnosis delay time | 2 seconds or more. | ||
POSSIBLE CAUSE
CAN communication system
FAIL-SAFE
—
DTC CONFIRMATION PROCEDURE
CHECK SELF-DIAG RESULT
CONSULT
-
Ignition switch ON and wait for 2 seconds or more.
-
Select “Self diagnosis result” mode of “BCM”.
Is DTC detected?
YES>>Refer to DTC Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: Inspection End.
DTC Diagnosis Procedure
CHECK CAN COMMUNICATION SYSTEM
Check CAN communication system. Refer to Trouble Diagnosis Flow Chart.
>>
Inspection End.
Other materials:
Dtc/circuit Diagnosis. Combination Switch Output Circuit
Diagnosis Procedure
CHECK OUTPUT CIRCUIT
Ignition switch ON.
Turn ON any switch in the system that is malfunctioning.
Check duty ratios between BCM harness connector and ground by using an oscilloscope.
With type A meter System + −
Voltage
(Approx.)
BCM
Connector Termi ...
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DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P1226
00
CTP LEARNING-B1
(CTP LEARNING-B1)
Diagnosis condition
Ignition switch ON
Signal (terminal)
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Thre ...
