Asc Can Timeout Not Equipped

Code No.U1102 ASC/TCL/ABS timeout/Not equipped

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JUDGEMENT CRITERIA

Diagnosis code No. U1102 is set when the combination meter cannot communicate with the ASC-ECU for more than 0.5 second.

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COMMENTS ON TROUBLE SYMPTOM

The M.U.T.-III shows a diagnosis code status as active.

• Connector(s) or wiring harness in the CAN bus lines between the combination meter and the ASC-ECU, the power supply circuits to the ASC-ECU itself may be defective.
  

The M.U.T.-III shows a diagnosis code status as stored.

• If diagnosis code No.U1102 is set as past trouble, carry out diagnosis with particular emphasis on wiring and connector(s) in the CAN bus lines between the combination meter and the ASC-ECU, or power supply to the ASC-ECU. For diagnosis procedures, refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Treat Past Trouble .
  

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PROBABLE CAUSES

• Malfunction of the combination meter
  
• Malfunction of the ASC-ECU
  
• Malfunction of wiring harness or connector
  

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DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics

Use the M.U.T.-III to diagnose the CAN bus lines.

Q. Is the check result normal?

Go to Step 2

Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ). On completion, go to Step 6.

STEP 2. Check the M.U.T.-III Diagnosis code for other systems

Check that the ASC-ECU sets a diagnosis code.

Q. Is the diagnosis code set?

Diagnose the ASC-ECU (Refer to GROUP 35C - Troubleshooting ). On completion, go to Step 6.

Go to Step 3

STEP 3. Check the M.U.T.-III Diagnosis code for other systems

Check if the diagnosis code No. U1102 is set to ETACS-ECU.

Q. Is the diagnosis code set?

Go to Step 4

Go to Step 5

STEP 4. Check whether the diagnosis code is reset.

Check again if the diagnosis code is set to the combination meter.

(1)Erase the diagnosis code.

(2)Turn the electric motor switch from "LOCK" (OFF) position to "ON" position.

(3)On completion, check that the diagnosis code is reset.

Q. Is the diagnosis code set?

Replace the ASC-ECU. Then, carry out the CAN bus diagnostics.Then go to Step 6 .

A poor connection, open circuit or other intermittent malfunction is present in the CAN bus lines between the ASC-ECU and the combination meter (Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).

STEP 5. Check whether the diagnosis code is reset.

Check again if the diagnosis code is set to the combination meter.

(1)Erase the diagnosis code.

(2)Turn the electric motor switch from "LOCK" (OFF) position to "ON" position.

(3)On completion, check that the diagnosis code is reset.

Q. Is the diagnosis code set?

Replace the combination meter. Then, carry out the CAN bus diagnostics. Then go to Step 6.

A poor connection, open circuit or other intermittent malfunction is present in the CAN bus lines between the ASC-ECU and the combination meter (Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).

STEP 6. Check whether the diagnosis code is reset.

Recheck if the diagnosis code is set to the combination meter.

(1)Erase the diagnosis code.

(2)Turn the electric motor switch from "LOCK" (OFF) position to "ON" position.

(3)On completion, check that the diagnosis code is reset.

Q. Is the diagnosis code set?

Return to Step 1.

The procedure is complete.

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MMC-Manuals.ru

Asc Can Timeout Not Equipped

Source: http://mmc-manuals.ru/manuals/i-miev/online/Service_Manual/2013/54/html/M154021090002101ENG.HTM

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