Nissan Sentra B18 (2020-2025) Service Manual: B2c20-12 Starter Cut Relay
Dtc Description
DTC Description
DTC DETECTION LOGIC
|
DTC No. |
CONSULT screen items (Trouble diagnosis content) |
DTC detecting condition |
|
|---|---|---|---|
|
B2C20-12 |
Starter cut relay (Starter cut relay) |
Diagnosis condition |
Ignition switch ON |
|
Signal (terminal) |
Starter cut relay signal |
||
|
Threshold |
When BCM detects starter cut relay circuit is short to battery |
||
|
Diagnosis delay time |
1 second or less |
||
POSSIBLE CAUSE
-
Harness or connectors
(Starter cut relay circuit is short to battery)
-
Starter cut relay
FAIL-SAFE
—
Confirmation Procedure
Confirmation Procedure
-
PERFORM DTC CONFIRMATION PROCEDURE
-
-
Ignition switch ON under the following conditions and wait 1 second or more:
-
CVT models
-
Selector lever: In the P position.
-
Brake pedal: Depressed.
-
-
M/T models
-
Shift lever: In the neutral position.
-
Clutch pedal or Brake pedal: Depressed.
-
-
-
CONSULTSelect “Self Diagnostic Result” mode of “BCM”.
-
Is the DTC detected?
YES >>Refer 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 STARTER CUT RELAY INPUT SIGNAL
-
Check voltage between BCM harness connector and ground.
(+)
(-)
Condition
Voltage
(Approx.)
BCM
Connector
Terminal
M142
123
Ground
At engine cranking
0 V
Other than above
Battery voltage
Is the inspection result normal?
YES >>Inspection End.
NO >>GO TO 2.
-
-
CHECK STARTER CUT RELAY INPUT SIGNAL CIRCUIT
-
-
Ignition switch OFF.
-
Disconnect BCM connector and starter cut relay connector.
-
Check continuity between BCM harness connector and starter cut relay harness connector.
BCM
Starter cut relay
Continuity
Connector
Terminal
Connector
Terminal
M142
123
H-2
2
Yes
-
Check continuity between BCM harness connector and ground.
BCM
—
Continuity
Connector
Terminal
M142
123
Ground
No
-
Is the inspection result normal?
YES >>GO TO 3.
NO >>Repair or replace harness.
-
-
CHECK STARTER CUT RELAY
-
Check starter cut relay. Refer to Component Inspection.
Is the inspection result normal?
YES >>Inspection End.
NO >>Replace starter cut relay.
-
Other materials:
Periodic Maintenance. Headlamp
Headlamp
Aiming Adjustment
Aiming Adjustment
PREPARATION BEFORE ADJUSTING
Before performing aiming adjustment, check the
following:
Ensure all tires are inflated to correct
pressure.
Place Nissan Sentra vehicle and screen on level surface.
...
B20ce-15 Hl (hi) Lh Pwr Sply Circ
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen items
(Trouble diagnosis content)
DTC detection condition
...
Trip computer
1. Vehicle speed
The vehicle speed screen shows the current speed of the Nissan Sentra as well
as the average vehicle speed calculated since the last reset.
Average vehicle speed:
Press the OK button on the steering wheel to open the drive computer Reset menu,
then follow the on-screen in ...