LEXUS PARKING ASSIST-SENSOR SYSTEM, Diagnostic DTC:U0100,U0140,U0142 and U0155
| DTC Code | DTC Name |
|---|---|
| U0100 | Lost Communication with ECM |
| U0140 | Lost Communication with Body Control Module |
| U0142 | Lost Communication with Body Control Module "B" |
| U0155 | Lost Communication with Instrument Panel Cluster Control Module (Combination Meter) |
DESCRIPTION
These DTCs are stored when the clearance warning ECU*1 or parking assist ECU*2 cannot receive and recognize certain signals via the CAN communication system.
*1: w/o Parking Assist Monitor System and/or Side Monitor System
*2: w/ Parking Assist Monitor System and/or Side Monitor System
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
U0100 |
Lost Communication with ECM |
A problem with the engine information signal from the ECM. |
CAN communication system |
U0140 |
Lost Communication with Body Control Module |
A problem with the vehicle information signal from the main body ECU (multiplex network body ECU). |
CAN communication system |
U0142 |
Lost Communication with Body Control Module "B" |
A problem with the vehicle information signal from the main body ECU (multiplex network body ECU). |
CAN communication system |
U0155 |
Lost Communication with Instrument Panel Cluster Control Module (Combination Meter) |
A problem with the vehicle speed information signal from the combination meter assembly |
CAN communication system |
When 2 or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harness of each ECU.
PROCEDURE
CHECK FOR DTC
Clear the DTCs.
Body Electrical > Clearance Sonar > Clear DTCs
Check for DTCs.
Body Electrical > Clearance Sonar > Trouble Codes
Result
Result
Proceed to
DTC (CAN communication system DTC) is output
A
No DTC is output
B