Lexus NX: Lost Communication with ECM / PCM "A" (U0100,U0142,U023A)
DESCRIPTION
-
U0100: The meter mirror sub-assembly receives signals from the ECM via CAN communication.
-
U0142: The meter mirror sub-assembly receives signals from the main body ECU (multiplex network body ECU) via CAN communication.
-
U023A: The meter mirror sub-assembly receives signals from the forward recognition camera via CAN communication.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory |
U0100 | Lost Communication with ECM / PCM "A" | -
DTC Detection Condition: IG+ voltage 9.5 to 11.5 V or higher
-
Malfunction Status: Lost communication with ECM
-
Malfunction Duration: 3.6 seconds or more
| -
ECM
-
CAN communication system
-
Meter mirror sub-assembly
| DTC stored |
U0142 | Lost Communication With Body Control Module "B" | -
DTC Detection Condition: IG+ voltage 9.5 to 11.5 V or higher
-
Malfunction Status: Lost communication with main body ECU (multiplex network body ECU)
-
Malfunction Duration: 5 seconds or more
| -
Main body ECU (multiplex network body ECU)
-
CAN communication system
-
Meter mirror sub-assembly
| DTC stored |
U023A | Lost Communication With Image Processing Module "A" | -
DTC Detection Condition: IG+ voltage 9.5 to 11.5 V or higher
-
Malfunction Status: Lost communication with forward recognition camera
-
Malfunction Duration: 5 seconds or more
| -
Forward recognition camera
-
CAN communication system
-
Meter mirror sub-assembly
| DTC stored |
PROCEDURE
(a) Clear the DTCs.
Click here
Body Electrical > Head Up Display > Clear DTCs
NEXT | | |
(a) Check if CAN communication DTCs are output.
Click here
Body Electrical > Head Up Display > Trouble Codes
OK:
DTC U0100, U0142 and U023A are not output
NG | | GO TO CAN COMMUNICATION SYSTEM |
READ NEXT:
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