( TL19E00J34600041953BBAT00 )

MICS (Driver's and Passenger's MICU) Self-diagnostic Function

NOTE: Use only if the HDS is unavailable.
Test Mode 1
Special Tools Required
MPCS short connector
07WAZ-0010100

1. Check the No. 15 (10 A) fuse in the under-hood fuse/relay box and the No. 5 (7.5 A) fuse in the driver's under-dash fuse/relay box. If the fuse is blown, find and correct the cause, then replace the fuse.

1. Turn the ceiling light switch in ‘‘DOOR'' (middle) position. Close all doors. Turn the ignition switch to ON (II).
   NOTE: If the driver's seat belt is unbuckled, the beeper will beep.

1. Connect the MPCS short connector (A) to the MICU service check connector (B), and turn the switch (C) on.

1. After 5 seconds, the ceiling light and ignition key light should come on for 2 seconds, go out, then blink once for 0.2 second. This means that you are in Test Mode 1 of the self-diagnostic function.

1. About 1 second after step 5, the ceiling light and ignition key light will blink and indicate the DTC, and repeat it every 3 seconds. If there is more than one DTC, the system will indicate them in ascending order, beginning from the DTC with the lowest numerical value.

   DTC | Condition
   --- | ---
   1 | Communication bus line error (BUS OFF)
   3 | The driver's MICU cannot receives signals from the door multiplex control unit.
   5 | The driver's MICU cannot receives signals from the gauge control module.
   6 | The driver's MICU cannot receives signals from the passenger's MICU.

NOTE: Use only if the HDS is unavailable.
Test Mode 1
Special Tools Required
MPCS short connector
07WAZ-0010100

1. Check the No. 15 (10 A) fuse in the under-hood fuse/relay box and the No. 5 (7.5 A) fuse in the driver's under-dash fuse/relay box. If the fuse is blown, find and correct the cause, then replace the fuse.

1. Turn the ceiling light switch in ‘‘DOOR'' (middle) position. Close all doors. Turn the ignition switch to ON (II).
   NOTE: If the driver's seat belt is unbuckled, the beeper will beep.

1. Connect the MPCS short connector (A) to the MICU service check connector (B), and turn the switch (C) on.

1. After 5 seconds, the ceiling light and ignition key light should come on for 2 seconds, go out, then blink once for 0.2 second. This means that you are in Test Mode 1 of the self-diagnostic function.

1. About 1 second after step 5, the ceiling light and ignition key light will blink and indicate the DTC, and repeat it every 3 seconds. If there is more than one DTC, the system will indicate them in ascending order, beginning from the DTC with the lowest numerical value.

   DTC | Condition
   --- | ---
   1 | Communication bus line error (BUS OFF)
   3 | The driver's MICU cannot receives signals from the door multiplex control unit.
   5 | The driver's MICU cannot receives signals from the gauge control module.
   6 | The driver's MICU cannot receives signals from the passenger's MICU.

How to cancel the Test Mode 1 NOTE: To cancel Test Mode 1, turn off the MPCS short connector switch for more than 10 seconds or turn the ignition switch to LOCK (0). |

Test Mode 2

1. While in Test Mode 1, turn off the MPCS short connector switch (A) for about 5 to 10 seconds, then turn it on again.

1. The ceiling light and ignition key light should come on for 2 seconds, go out, then blinks twice more at 0.2 second intervals. This means the system has gone from Test Mode 1 to Test Mode 2.

1. While still in Test Mode 2, operate the switches in the table shown. If the circuit is OK, the ceiling light and ignition key light blink once. If the circuit is faulty, the ceiling light and ignition key light do not blink.
   - If the ceiling light and ignition key light do not blink even a switch is operated, check two or three other circuits listed in the table. If the ceiling light blinks for each circuit, the additional circuits are OK, repair the short or open circuit that failed the test in Step 3 .
   - If the ceiling light and ignition key light do not blink again, this multiple failed circuits mean that the control unit has failed without triggering a DTC. Test a few more circuits. If they also fail, test the related control units input test.
   Driver's MICU

   Brake pedal position switch (ON) | Lighting switch (ON)
   Driver's door switch | Dimmer switch (ON)
   Left [right] rear door switch | Passing switch(ON)
   Trunk lid latch switch | Front fog light switch (ON)
   Left [right] rear door knob switch (UNLOCK) | Rear fog light switch (ON)
   Wiper switch (HI/LO) | A/C pressure switch
   Wiper switch (INT/LO) | Transmission range switch (P) (A/C)
   Wiper switch (MIST) | Ignition key switch
   Washer switch | Hood switch
   Wiper intermittent dwell time controller | Back-up light switch (M/T)
   Turn signal switch (LEFT) | Wiper motor park position (Auto stop)
   Turn signal switch (RIGHT) | Rear window defogger switch
   Hazard warning switch (ON) | Trunk lid outer handle switch (ON)
   Headlight switch (ON) | Trunk lid opener main switch (ON)
   Headlight switch (OFF) |

   [ ]: | RHD model

   Passenger's MICU

   Front passenger's door switch | Headlight washer switch
   Right [left] rear door switch | Radio switch (AUDIO)
   Right [left] rear door lock knob switch (UNLOCK) |

   [ ]: | RHD model

   Door Multiplex Control Unit

   Driver's door lock switch (UNLOCK) | Driver's door lock knob switch (LOCK)
   Driver's door lock switch (LOCK) | Driver's door lock key cylinder switch (UNLOCK) *
   Driver's door lock knob switch (UNLOCK) | Driver's door lock key cylinder switch (LOCK) *

   * A second key is necessary to check the key cylinder inputs. Be sure to rotate the key cylinder switch two times to each position (lock and lock, unlock and unlock) to ensure the door lock knob switch is in the appropriate position.

   Front Passenger's Power Window Switch

   Front passenger's door lock switch (UNLOCK)
   Front passenger's door lock switch (LOCK)
   Front passenger's door lock knob switch

   Power Seat Control Unit

   Power seat adjustment switch

Test Mode 2

1. While in Test Mode 1, turn off the MPCS short connector switch (A) for about 5 to 10 seconds, then turn it on again.

1. The ceiling light and ignition key light should come on for 2 seconds, go out, then blinks twice more at 0.2 second intervals. This means the system has gone from Test Mode 1 to Test Mode 2.

1. While still in Test Mode 2, operate the switches in the table shown. If the circuit is OK, the ceiling light and ignition key light blink once. If the circuit is faulty, the ceiling light and ignition key light do not blink.
   - If the ceiling light and ignition key light do not blink even a switch is operated, check two or three other circuits listed in the table. If the ceiling light blinks for each circuit, the additional circuits are OK, repair the short or open circuit that failed the test in Step 3 .
   - If the ceiling light and ignition key light do not blink again, this multiple failed circuits mean that the control unit has failed without triggering a DTC. Test a few more circuits. If they also fail, test the related control units input test.
   Driver's MICU

   Brake pedal position switch (ON) | Lighting switch (ON)
   Driver's door switch | Dimmer switch (ON)
   Left [right] rear door switch | Passing switch(ON)
   Trunk lid latch switch | Front fog light switch (ON)
   Left [right] rear door knob switch (UNLOCK) | Rear fog light switch (ON)
   Wiper switch (HI/LO) | A/C pressure switch
   Wiper switch (INT/LO) | Transmission range switch (P) (A/C)
   Wiper switch (MIST) | Ignition key switch
   Washer switch | Hood switch
   Wiper intermittent dwell time controller | Back-up light switch (M/T)
   Turn signal switch (LEFT) | Wiper motor park position (Auto stop)
   Turn signal switch (RIGHT) | Rear window defogger switch
   Hazard warning switch (ON) | Trunk lid outer handle switch (ON)
   Headlight switch (ON) | Trunk lid opener main switch (ON)
   Headlight switch (OFF) |

   [ ]: | RHD model

   Passenger's MICU

   Front passenger's door switch | Headlight washer switch
   Right [left] rear door switch | Radio switch (AUDIO)
   Right [left] rear door lock knob switch (UNLOCK) |

   [ ]: | RHD model

   Door Multiplex Control Unit

   Driver's door lock switch (UNLOCK) | Driver's door lock knob switch (LOCK)
   Driver's door lock switch (LOCK) | Driver's door lock key cylinder switch (UNLOCK) *
   Driver's door lock knob switch (UNLOCK) | Driver's door lock key cylinder switch (LOCK) *

   * A second key is necessary to check the key cylinder inputs. Be sure to rotate the key cylinder switch two times to each position (lock and lock, unlock and unlock) to ensure the door lock knob switch is in the appropriate position.

   Front Passenger's Power Window Switch

   Front passenger's door lock switch (UNLOCK)
   Front passenger's door lock switch (LOCK)
   Front passenger's door lock knob switch

   Power Seat Control Unit

   Power seat adjustment switch

How to cancel the Test Mode 2 NOTE: To cancel Test Mode 2, turn off the MPCS short connector switch for more than 10 seconds or turn the ignition switch to LOCK (0). |