Nissan Sentra B18 (2020-2025) Service Manual: Dtc Diagnosis Procedure
-
CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
-
-
Ignition switch ON.
-
Check signal between Intelligent Key unit harness connector and ground using oscilloscope.
(+)
(–)
Condition
Signal
(Reference value)
Intelligent Key unit
Connector
Terminal
M155
37
Ground
When the trunk lid opener request switch is operated with push-button ignition switch ON
When Intelligent Key is in the antenna detection area
When Intelligent Key is not in the antenna detection area
38
When Intelligent Key is in the antenna detection area
When Intelligent Key is not in the antenna detection area
-
Is the inspection result normal?
YES >>Replace Intelligent Key unit. Refer to Removal and Installation.
NO >>GO TO 2.
-
-
CHECK OUTSIDE KEY ANTENNA CIRCUIT
-
-
Ignition switch OFF.
-
Disconnect Intelligent Key unit connector and outside key antenna (rear bumper) connector.
-
Check continuity between Intelligent Key unit harness connector and outside key antenna (rear bumper) harness connector.
Intelligent Key unit
Outside key antenna (rear bumper)
Continuity
Connector
Terminal
Connector
Terminal
M155
37
B86
2
Yes
38
1
-
Check continuity between Intelligent Key unit harness connector and ground.
Intelligent Key unit
—
Continuity
Connector
Terminal
M155
37
Ground
No
38
-
Is the inspection result normal?
YES >>GO TO 3.
NO >>Repair or replace harness.
-
-
CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2
-
-
Replace outside key antenna (rear bumper). (New antenna or other antenna)
-
Connect Intelligent Key unit and outside key antenna (rear bumper) connector.
-
Ignition switch ON.
-
Check signal between Intelligent Key unit harness connector and ground using oscilloscope.
(+)
(–)
Condition
Signal
(Reference value)
Intelligent Key unit
Connector
Terminal
M155
37
Ground
When the trunk lid opener request switch is operated with push-button ignition switch ON
When Intelligent Key is in the antenna detection area
When Intelligent Key is not in the antenna detection area
38
When Intelligent Key is in the antenna detection area
When Intelligent Key is not in the antenna detection area
-
Is the inspection result normal?
YES >>Replace outside key antenna (rear bumper). Refer to Removal and Installation.
NO >>Replace Intelligent Key unit. Refer to Removal and Installation.
-
Confirmation Procedure
Confirmation Procedure
PERFORM DTC CONFIRMATION
PROCEDURE
CONSULT
Select “Self Diagnosis Result” mode
of “HANDS FREE MODULE" ...
B2046-42 Eeprom
...
Other materials:
Air conditioner system refrigerant and oil recommendations
The air conditioner system in your NISSAN
vehicle must be charged with the refrigerant
HFC-134a (R-134a) and NISSAN A/C
system oil Type S or the exact equivalents.
CAUTION
The use of any other refrigerant or oil will
cause severe damage to the air conditioning
system and will require the repl ...
Fuel Injector and Fuel Tube
Exploded View
Exploded View
1.
High pressure fuel rail
2.
Fuel injector assembly
3.
...
C1130 Engine signal
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction detected condition
Possible causes
C1130
ENGINE SIGNAL 1
When a malfunction is detected in ECM system.
ECM
ABS actuator and electric unit
(control unit)
CAN communication line
...
