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Home >> Acura >> 2003 >> RSX Base, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Multiplex Control System >> Troubleshooting >> Mode 2 Test
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Mode 2 Test

  1. From mode 1, disconnect the special tool from the multiplex inspection connector for 5 to 10 seconds, and then reconnect it.
  2. The ignition key light and ceiling light should come on for 2 seconds, go out, then blink twice, 0.2 seconds each time. The system is now in Mode 2.
  3. Operate the switches listed below: If the circuit is OK, the ignition key light and ceiling light will blink once. If the circuit is faulty, the lights will not blink.

    Tip: Operating the switches most closely related to the problem you are diagnosing is a quick way of testing the circuits integrity. 

    MODE 2 TEST

    Switch Lights blink when:
    Windshield washer switch Washer switch pulled
    Windshield wiper switch Switch in the INT position
    Driver's door switch Driver's door is opened
    Passenger's door switch Passenger's door is opened
    Hatch latch switch Hatch is opened
    Parking brake switch Parking brake applied
    Driver's door lock switch Pushed to lock and unlock
    Driver's door knob switch Knob in UNLOCK or LOCK position
    A/C switch A/C switch ON and blower switch ON
    Headlight switch Switched to the PARK position
    Brake pedal position switch Brake pedal pressed
    Transmission range switch
    • Shift P, R, D, D3 (A/T)
    • Upshift then downshift (M/T)
  4. If all inputs were confirmed, or multiple circuits failed at the same time in Mode 2, go to the MULTIPLEX SLEEP MODE TEST  . If a single switch fails in Mode 2, troubleshoot its circuit.