To Enter Mode 2

From Mode 1, disconnect the special tool from the multiplex control (MPCS) inspection connector for between 5 and 10 seconds, then reconnect it. The ignition key light should come on and the beeper should beep for 2 seconds, then blink/beep twice more at 0.2 second intervals. This indicates the system has entered Mode 2.

Fig 1: Identifying Mode 2: Ignition Key Light & Beeper
Courtesy of AMERICAN HONDA MOTOR CO., INC.

NOTE: To cancel Mode 2, disconnect the special tool from the multiplex control inspection connector for more than 10 seconds or turn the ignition switch OFF.
Operate the switches as described in the charts below.
NOTE:
- A second key is necessary to test the key cylinder switches. If only one key is available, cut a second key from a non-immobilizer type key blank for the test.
- When testing the door lock knob switches, make sure all three passenger doors are locked. After unlocking the door, make sure to return the door lock knob switch to the lock position, otherwise the test results will be inaccurate.
Fig 2: Switch Operation Chart (1 Of 3)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 3: Switch Operation Chart (2 Of 3)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 4: Switch Operation Chart (3 Of 3)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Did the multiplex control system confirm all the circuits by flashing the ignition key light and sounding the beeper?
1. YES -The multiplex system is OK, if the symptom is still present, go to the input test for the system with the problem ( see list below), or refer to multiplex control unit input test (see Multiplex Control Unit Input Test ).
  1. System
  - Power door locks (see CONTROL UNIT INPUT TEST )
  - Security (see CONTROL UNIT INPUT TEST )
  - Keyless (see CONTROL UNIT INPUT TEST )
  - Power windows (Includes key-off timer operation) (see page CONTROL UNIT INPUT TEST )
  - Entry light control, Key light timer (see CONTROL UNIT INPUT TEST )
  - Wiper controls (front and rear) (see CONTROL UNIT INPUT TEST )
  - Automatic lights off (see AUTO-OFF HEADLIGHTS CONTROL UNIT INPUT TEST )
  - Reminder chimes (Key-in, seat belt, lights-on) (see CONTROL UNIT INPUT TEST )
  - Dash lights brightness control (see CONTROL UNIT INPUT TEST )
  - Engine oil pressure indicator (see CONTROL UNIT INPUT TEST )
2. NO -Find the open or short in the circuit that was not confirmed by the multiplex control system. If the circuit is OK, replace the multiplex control unit that monitors the circuit.