Nissan Sentra B18 (2020-2025) Service Manual: B2e0b Telematics Switch
Dtc Description
DTC Description
DTC DETECTION LOGIC
|
DTC No. |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
||
|---|---|---|---|---|
|
B2E0B-01 |
SOS LED (Auto) [SOS LED (Auto)] |
1 |
Diagnosis condition |
When ignition switch is ON |
|
Signal (terminal) |
SOS switch LED (Green) signal (terminal 5) |
|||
|
Threshold |
Not connected or open circuit |
|||
|
Diagnosis delay time |
1 second or more |
|||
|
2 |
Diagnosis condition |
When ignition switch is ON |
||
|
Signal (terminal) |
SOS switch LED (Green) signal (terminal 5) |
|||
|
Threshold |
1.2 V or less |
|||
|
Diagnosis delay time |
1 second or more |
|||
|
3 |
Diagnosis condition |
When ignition switch is ON |
||
|
Signal (terminal) |
SOS switch LED (Green) signal (terminal 5) |
|||
|
Threshold |
5.8 V or more |
|||
|
Diagnosis delay time |
1 second or more |
|||
POSSIBLE CAUSE
-
Moonroof switch assembly (telematics switch) is not connected,
-
SOS switch LED (Green) signal is open
-
SOS switch LED (Green) signal is short to ground
-
SOS switch LED (Green) signal is short to battery
FAIL-SAFE
Telematics system does not operate
Confirmation Procedure
Confirmation Procedure
-
PERFORM DTC CONFIRMATION PROCEDURE
-
CONSULT-
Ignition switch ON.
-
Ignition switch OFF and wait at least 30 seconds.
-
Ignition switch ON and wait at least 30 seconds or more.
-
Select “Self Diagnostic Result” mode of “IVC”.
-
Check DTC.
-
Is DTC B2E0B–01 detected?
YES>>Proceed to DTC Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: Inspection End.
-
Dtc Diagnosis Procedure
DTC Diagnosis Procedure
-
CHECK SOS SWITCH LED (GREEN) SIGNAL
-
-
Ignition switch ON.
-
Check the voltage between TCU connector and ground.
(+)
(-)
Condition
Voltage
(Approx.)
TCU
Connector
Terminal
M160
5
Ground
SOS switch LED (Green) not illuminated
5 V
SOS switch LED (Green) illuminated
0 V
-
Is the inspection result normal?
YES >>GO TO 2.
NO >>Replace TCU. Refer to Removal and Installation.
-
-
CHECK SOS SWITCH LED (GREEN) SIGNAL CIRCUIT FOR OPEN
-
-
Ignition switch OFF.
-
Disconnect TCU connector and moonroof switch assembly (telematics switch) connector.
-
Check the continuity between TCU connector and moonroof switch assembly (telematics switch) connector.
TCU
Moonroof switch assembly (telematics switch)
Continuity
Connector
Terminal
Connector
Terminal
M160
5
R27
5
Yes
-
Is the inspection result normal?
YES>>GO TO 3.
NO>>Repair or replace harness or connector.
-
-
CHECK SOS SWITCH LED (GREEN) SIGNAL CIRCUIT FOR SHORT
-
-
Ignition switch ON.
-
Check the voltage between TCU connector and ground.
(+)
(-)
Voltage
(Approx.)
TCU
Connector
Terminal
M160
5
Ground
0 V
-
Is the inspection result normal?
YES >>GO TO 4.
NO >>Repair or replace harness or connector.
-
-
CHECK SOS SWITCH LED (GREEN) SIGNAL CIRCUIT FOR SHORT
-
Ignition switch OFF.
-
Check the continuity between TCU connector and ground.
TCU
—
Continuity
Connector
Terminal
M160
5
Ground
No
Is the inspection result normal?
YES >>Replace moonroof switch assembly (telematics switch). Refer to Removal and Installation.
NO >>Repair or replace harness or connector.
-
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