Lexus ES: Control Module Communication Bus OFF (U0073,U0126,U0142,U0182)
DESCRIPTION
These DTCs are stored if a CAN communication malfunction occurs between the headlight ECU sub-assembly RH and other ECUs.
for LED Type Turn Signal Light| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U0073 | Control Module Communication Bus OFF | The headlight ECU sub-assembly RH does not send/receive data. | CAN communication system | AFS (Sub) |
| U0126 | Lost Communication with Steering Angle Sensor Module | The headlight ECU sub-assembly RH does not receive data from the steering sensor for approximately 10 seconds or more. |
| AFS (Sub) |
| U0142 | Lost Communication with Body Control Module "B" | The headlight ECU sub-assembly RH does not receive data from the main body ECU (multiplex network body ECU) for approximately 10 seconds or more. |
| AFS (Sub) |
| U0182 | Lost Communication With Lighting Control Module Front | The headlight ECU sub-assembly RH does not receive data from the headlight ECU sub-assembly LH for approximately 10 seconds or more. |
| AFS (Sub) |
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U0073 | Control Module Communication Bus OFF | The headlight ECU sub-assembly RH does not send/receive data. | CAN communication system | HL AutoLeveling (Sub) |
| U0126 | Lost Communication with Steering Angle Sensor Module | The headlight ECU sub-assembly RH does not receive data from the steering sensor for approximately 10 seconds or more. |
| HL AutoLeveling (Sub) |
| U0142 | Lost Communication with Body Control Module "B" | The headlight ECU sub-assembly RH does not receive data from the main body ECU (multiplex network body ECU) for approximately 10 seconds or more. |
| HL AutoLeveling (Sub) |
| U0182 | Lost Communication With Lighting Control Module Front | The headlight ECU sub-assembly RH does not receive data from the headlight ECU sub-assembly LH for approximately 10 seconds or more. |
| HL AutoLeveling (Sub) |
PROCEDURE
| 1. | CONFIRM MODEL |
(a) Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for LED Type Turn Signal Light | A |
| for Bulb Type Turn Signal Light | B |
| B | .gif) | GO TO STEP 4 |
|
.gif)
| 2. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / AFS (Sub) / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > AFS (Sub) > Clear DTCs
|
| 3. | CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Wait 20 seconds or more.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / AFS (Sub) / Trouble Codes.
(f) Check for DTCs.
Body Electrical > AFS (Sub) > Trouble CodesOK:
DTCs are not output.
| OK | | USE SIMULATION METHOD TO CHECK |
| NG | | GO TO CAN COMMUNICATION SYSTEM |
| 4. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / HL AutoLeveling (Sub) / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > HL AutoLeveling (Sub) > Clear DTCs
|
| 5. | CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Wait 35 seconds or more.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / HL AutoLeveling (Sub) / Trouble Codes.
(f) Check for DTCs.
Body Electrical > HL AutoLeveling (Sub) > Trouble CodesOK:
DTCs are not output.
| OK | | USE SIMULATION METHOD TO CHECK |
| NG | | GO TO CAN COMMUNICATION SYSTEM |
READ NEXT:
Lost Communication With ECM/PCM "A" (U0100,...,U1117)
DESCRIPTION These DTCs are stored if a CAN communication malfunction occurs between the main body ECU (multiplex network body ECU) and other ECUs. DTC No. Detection Item DTC Detection Condition
Lost Communication with Multi-axis Acceleration Sensor Module Missing Message (U012587,U012987,U014087,U029387)
DESCRIPTION These DTCs are stored if a CAN communication malfunction occurs between the forward recognition camera and other ECUs. DTC No. Detection Item DTC Detection Condition Trouble Area
Lost Communication with Cruise Control Front Distance Range Sensor Signal Sensor or Center Missing Message (U023587)
DESCRIPTION The forward recognition camera and millimeter wave radar sensor assembly communicate via CAN communication. If there is an error in the communication with the millimeter wave radar sensor
SEE MORE:
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (CHECK USING TECHSTREAM) (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG) and wait for 90 seconds. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Navigation System / Trouble Codes. Body Electrical > Navigation Sys
Hybrid/EV Battery ECU Multiple Reset (P1AFF00)
DESCRIPTION The battery ECU assembly monitors its internal operation and will store these DTCs when it detects an internal malfunction. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P1AFF00 Hybrid/EV Battery ECU Multiple Reset ECU internal malf
