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Home >> Acura >> 2006 >> TL Standard >> Repair and Diagnosis >> Accessories & Equipment >> Memory Modules >> Driving Position Memory Systems (DPMS) >> DTC Troubleshooting >> DTC B1806: Power Seat Control Unit Lost Communication with MICU (MICU Message)

DTC B1806: Power Seat Control Unit Lost Communication with MICU (MICU Message)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch OFF, and then back ON (II).
  3. Check for DTCs with the HDS.

    Is DTC B1806 indicated? 

    1. YES  - Go to step  4.
    2. NO  - Check for poor connections. If OK, check battery condition and charging system.
  4. Check for DTCs with the HDS.

    Are DTCs B1055, B1157 and B1255 indicated? 

    1. YES  - Go to step  7.
    2. NO  - Go to step  5.
  5. Turn the ignition switch OFF.
  6. Do the POWER SEAT CONTROL UNIT INPUT TEST  .

    Is the input test OK? 

    1. YES  - Faulty power seat control unit.
    2. NO  - Refer to the POWER SEAT CONTROL UNIT INPUT TEST  and correct the cause.
  7. Turn the ignition switch OFF.
  8. Do the MICU INPUT TEST .

    Is the input test OK? 

    1. YES  - Faulty multiplex integrated control unit.
    2. NO  - Refer to the multiplex integrated control unit input test and correct the cause.
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