Acura TSX / Honda Accord CL. Manual - part 122

 

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Acura TSX / Honda Accord CL. Manual - part 122

 

 

When everything is closed and locked, the only inputs that are grounded, and have 0 volts, are the driver's door 
lock knob switch (LOCK position), and the integrated audio-HVAC display module. In other words, all of the 
other switches are open, and have about 10 volts, including the key cylinder switches. The security indicator in 
the gauge control module begins to flash immediately after the vehicle is completely closed and locked, and 15 
seconds later, the security system arms and the security indicator flashes on for a shorter amount of time than 
before. If the security indicator does not flash, the system is not arming. A beep sounds and parking lights flash 
to confirm the security alarm system is armed if the LOCK button is pressed a second time within 5 seconds. 

If one of the switches is misadjusted or shorted internally, or there is a short in the circuit, the security system 
will not arm. As long as the control unit continues to receive a ground signal (0 volts), it senses that the vehicle 
is not closed and locked, and the system will not arm. A switch that is slightly misadjusted can cause the alarm 
to sound for no apparent reason. In this case, a significant change in outside air temperature, the vibration of a 
passing truck, or someone bumping into the vehicle could cause the alarm to sound. There is no glass breakage 
or motion detector feature. 

If anything is opened or improperly unlocked after the system is armed, the control unit receives a ground signal 
from that switch, and the 10 volts reference drops to 0 volts. If the integrated audio-HVAC display unit is 
disconnected, the input loses its ground, and the input voltage goes to 10 volts. The system sounds the alarm 
when any of these occur:  

z

A door or the trunk is forced open  

z

A door is unlocked without using the key or the remote transmitter  

z

The hood is opened  

z

The audio-HVAC display unit is disconnected  

z

The remote panic is operated  

When the system sounds the alarm, the horns sound and the exterior lights flash for 2 minutes. The alarm can be 
stopped at any time by unlocking the driver's door with the key or by pressing any button on the remote 
transmitter. 

PANIC MODE 

The panic mode sounds the alarm in order to attract attention. When the PANIC button on the remote 
transmitter is pressed and held for 2 seconds, the alarm sounds and the exterior lights flash for about 20 
seconds. 

The panic mode can be cancelled at anytime by pressing any button on the remote transmitter or by turning the 
ignition switch ON (II). The panic mode will not function if the ignition switch is ON (II). 

KEYLESS ENTRY SYSTEM 

The keyless entry system is integrated with the MICS. The multiplex integrated control unit (MICU) receives 
LOCK, UNLOCK and PANIC signals from the door multiplex control unit (keyless receiver). 

The keyless entry system allows you to lock and unlock the vehicle with the remote transmitter. When you 
press the LOCK button, all doors lock. When you press the UNLOCK button once, only the driver's door 

 

2004 Acura TSX 

2004 ACCESSORIES & EQUIPMENT Keyless Entry/Security Alarm System - TSX

  

 

unlocks. The other doors will unlock when you press the button a second time. The doors will not lock with the 
remote transmitter if a door is not fully closed, or if the key is in the ignition switch. 

If the UNLOCK button is pressed, released, then pressed and held, the windows will begin to open. The 
windows stop if the button is released. See power windows for more information and troubleshooting. 

When the switch for the ceiling light is in the center position, it will come on when the UNLOCK button is 
pressed. If a door is not opened, the light will go off in about 30 seconds, and the doors will relock. If the doors 
are locked with the remote transmitter within 30 seconds, the light will go off immediately. 

CIRCUIT DIAGRAM 

 

2004 Acura TSX 

2004 ACCESSORIES & EQUIPMENT Keyless Entry/Security Alarm System - TSX

  

 

Fig. 3: Keyless Entry/Security Alarm System Wiring Diagram (1 Of 3)

 

2004 Acura TSX 

2004 ACCESSORIES & EQUIPMENT Keyless Entry/Security Alarm System - TSX

  

 

Fig. 4: Keyless Entry/Security Alarm System Wiring Diagram (2 Of 3)

 

2004 Acura TSX 

2004 ACCESSORIES & EQUIPMENT Keyless Entry/Security Alarm System - TSX

  

 

 

 

 

 

 

 

 

Content   ..  120  121  122  123   ..