-21- DTC P Code _ DST-1 display Code explanation Reference 9 U0104 Communication obstruction (cruise) Communication with the vehicle cruise ECU is obstructed. 9 U0121 Communication obstruction (ABS) Communication with the ABS ECU is obstructed. 9 U0132 Communication obstruction (air suspension) Communication with the air suspension ECU is obstructed. 9 U0155 Communication obstruction (meter) Communication with the meter ECU is obstructed. 9 U1001 CAN communication obstruction (vehicle) The communication with the other computers installed in the vehicle is abnormal. CAN communica- tion bus OFF judg- ment