Lexus NX: Control Module Communication Bus "A" Off (U0073,U0100,U0101,U0126,U0129,U0142,U0155,U0293)
DESCRIPTION
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0073 | Control Module Communication Bus "A" Off | Bus off condition is detected. | CAN communication system |
| U0100 | Lost Communication with ECM / PCM "A" | Communication stop occurs between the headlight ECU sub-assembly LH and ECM continuously for 10 seconds or more. |
|
| U0101 | Lost Communication with TCM | Communication stop occurs between the headlight ECU sub-assembly LH and hybrid vehicle control ECU continuously for 10 seconds or more. |
|
| U0126 | Lost Communication with Steering Angle Sensor Module | Communication stop occurs between the headlight ECU sub-assembly LH and steering sensor continuously for 10 seconds or more. |
|
| U0129 | Lost Communication with Brake System Control Module | Communication stop occurs between the headlight ECU sub-assembly LH and brake actuator assembly (skid control ECU) continuously for 10 seconds or more. |
|
| U0142 | Lost Communication with Body Control Module "B" | Communication stop occurs between the headlight ECU sub-assembly LH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more. |
|
| U0155 | Lost Communication with Instrument Panel Cluster (IPC) Control Module | Communication stop occurs between the headlight ECU sub-assembly LH and combination meter assembly continuously for 30 seconds or more. |
|
| U0293 | Lost Communication with Hybrid Vehicle Control System | Communication stop occurs between the headlight ECU sub-assembly LH and hybrid vehicle control ECU continuously for 10 seconds or more. |
|
PROCEDURE
| 1. | CHECK FOR DTC |
(a) Clear the DTCs.
Click here .gif)
(b) Check for DTCs.
Click here
OK:
DTCs U0073, U0100, U0101, U0126, U0129, U0142, U0155 and U0293 output does not occur.
| OK | .gif) | USE SIMULATION METHOD TO CHECK |
| NG | | GO TO CAN COMMUNICATION SYSTEM |
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