Nissan Sentra B18 (2020-2025) Service Manual: Main Line Between Abs and M&a Circuit
Diagnosis Procedure
Diagnosis Procedure
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CHECK CONNECTOR
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Turn the ignition switch OFF.
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Disconnect the battery cable from the negative terminal.
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Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).
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Harness connector E4
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Harness connector M2
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Is the inspection result normal?
YES >>GO TO 2.
NO >>Repair the terminal and connector.
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CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
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Disconnect the following harness connectors.
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ABS actuator and electric unit (control unit)
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Harness connectors E4 and M2
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Check the continuity between the ABS actuator and electric unit (control unit) harness connector and the harness connector.
ABS actuator and electric unit (control unit) harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E33
11
E4
55G
Existed
10
54G
Existed
Is the inspection result normal?
YES >>GO TO 3.
NO >>Repair the main line between the ABS actuator and electric unit (control unit) and the harness connector E4.
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CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
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Disconnect the connector of combination meter.
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Check the continuity between the harness connector and the combination meter harness connector.
Harness connector
Combination meter harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M2
55G
M24
18
Existed
54G
19
Existed
Is the inspection result normal?
YES (Present error) >>Check CAN system type decision again.
YES (Past error) >>Error was detected in the main line between the ABS actuator and electric unit (control unit) and the combination meter.
NO >>Repair the main line between the harness connector M2 and the combination meter.
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Other materials:
P27f0-00 Transmission Range Control B Position Sensor/switch
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis
content)
DTC detection
...
Body Control System. Basic Inspection
Inspection and Adjustment
Additional Service When Replacing Control Unit (bcm)
Description
Description
CAUTION:
Be sure to perform the configuration saving and
writing or reregistration when replacing the BCM.
When replacing the BCM, a ...
Fail-Safe
Fail-safe
FAIL-SAFE CONTROL BY DTC
BCM performs fail-safe control when any DTC are
detected.
Display contents of CONSULT
Fail-safe
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