Nissan Titan A60. Manual - part 492
TRAILER TOW
EXL-23
< SYSTEM DESCRIPTION >
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TRAILER TOW
System Diagram
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System Description
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TRAILER TAIL LAMP OPERATION
The trailer tail lamps are controlled by the trailer tow relay 1 located in the IPDM E/R. With the combination
switch (lighting and turn signal switch) in the 1st position, the BCM detects the LIGHTING SWITCH 1ST POSI-
TION ON. The BCM sends a parking light ON request via the CAN communication lines to the IPDM E/R. The
IPDM E/R then activates the tail lamp relay which activates the trailer tow relay 1 and sends power to the
trailer connector.
TRAILER TURN SIGNAL LAMP OPERATION
The trailer turn signal lamps are controlled by the BCM. When the turn signal switch is in the LH or RH position
with the ignition switch ON, the combination switch (lighting and turn signal switch) sends a signal to the BCM.
The BCM detects the TURN RH or TURN LH ON request. The BCM sends a control signal to the respective
trailer turn relay which sends power to the trailer connector.
TRAILER HAZARD LAMP OPERATION
The trailer hazard lamps are controlled by the BCM. When the hazard switch is pressed, the BCM detects the
the hazard ON request. The BCM then sends a control signal to both trailer turn relays which sends power to
the trailer connector.
TRAILER BRAKE LAMP OPERATION
The trailer brake lamps are controlled by the BCM. When the brake pedal is depressed, the combination meter
receives a stop lamp switch signal from the stop lamp switch. The combination meter then sends the brake
signal to the BCM via the CAN communication lines. The BCM then sends a control signal to both trailer turn
relays which sends power to the trailer connector.
ABLIA2788GB