Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2019 Nissan-Datsun Sentra SLFACTORY OEM SERVICE PROCEDURE

System Application

BCM can perform the following functions.

System	Sub System	Direct Diagnostic Mode
System	Sub System	ECU Identification	Self Diagnostic Result	Data Monitor	Active Test	Work support	Configuration	CAN DIAG SUPPORT MNTR
Door lock	DOOR LOCK	?			?	?
Rear window defogger	REAR DEFOGGER	?			?
Warning chime	BUZZER	?			?
Interior room lamp timer	INT LAMP	?			?	?
Exterior lamp	HEAD LAMP	?			?	?
Wiper and washer	WIPER	?			?	?
Turn signal and hazard warning lamps	FLASHER	?			?	?
Air conditioner	AIR CONDITIONER	?
Intelligent Key system	INTELLIGENT KEY	?			?	?	?
Combination switch	COMB SW	?
BCM	BCM	?	?	?					?	?
Immobilizer	IMMU	?			?	?	?
Interior room lamp battery saver	BATTERY SAVER	?			?	?
Trunk open	TRUNK	?
Vehicle security system	THEFT ALM	?			?	?
RAP system	RETAINED PWR	?
Signal buffer system	SIGNAL BUFFER	?			?
TPMS	AIR PRESSURE MONITOR	?			?	?	?

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.