Nissan Sentra B18 (2020-2025) Service Manual: Power Supply and Ground Circuit. Intelligent Key Unit
Intelligent Key Unit
Diagnosis Procedure
-
CHECK FUSE
-
Check that the following fuse is not blown:
Terminal
Signal name
Fuse No.
Capacity
1
Intelligent Key unit power supply
31
10 A
Is the fuse blown?
YES >>Replace the blown fuse after repairing the affected circuit.
NO >>GO TO 2.
-
-
CHECK POWER SUPPLY CIRCUIT
-
-
Disconnect Intelligent Key unit connector.
-
Check voltage between Intelligent Key unit connector and ground.
Intelligent Key unit
—
Voltage
(Approx.)
Connector
Terminal
M155
1
Ground
Battery voltage
-
Is the inspection result normal?
YES >>GO TO 3.
NO >>Repair or replace harness or connectors.
-
-
CHECK GROUND CIRCUIT
-
Check continuity between Intelligent Key unit connector and ground.
Intelligent Key unit
—
Continuity
Connector
Terminal
M155
29
Ground
Yes
Is the inspection result normal?
YES>>Inspection End.
NO>>Repair or replace harness or connectors.
-
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Tool name
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