Lexus ES: ECU Malfunction (C1611)
DESCRIPTION
This DTC is stored if the rear television camera assembly judges that there is an internal malfunction as a result of its self check.
HINT:
The rear television camera assembly stores different types of information during initialization. If the rear television camera assembly cannot read the stored information when it is activated, the rear television camera assembly judges that there is an internal malfunction and stores this DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1611 | ECU Malfunction | When any of the following conditions is met:
| Rear television camera assembly |
CAUTION / NOTICE / HINT
NOTICE:
Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the parking assist monitor system may be needed.
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PROCEDURE
| 1. | READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / Rear Camera / Data List.
(e) Read the Data List according to the display on the Techstream,
Chassis > Rear Camera > Data List| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Video Output Status | Output condition of video signal | OK or NG | OK: Output condition of video signal is normal NG: Output condition of video signal is abnormal | - |
| EEPROM Status (Initial read) | Rear television camera assembly information | OK or NG | OK: Rear television camera assembly normal NG: Rear television camera assembly abnormal | - |
| CPU Communication Status | Rear television camera assembly information | OK or NG | OK: Rear television camera assembly normal NG: Rear television camera assembly abnormal | - |
| Tester Display |
|---|
| Video Output Status |
| EEPROM Status (Initial read) |
| CPU Communication Status |
| Result | Proceed to |
|---|---|
| OK is displayed for all items | A |
| NG is displayed for EEPROM status (Initial read) | |
| NG is displayed for items other than EEPROM status (Initial read) | B |
| B | .gif) | REPLACE REAR TELEVISION CAMERA ASSEMBLY |
|
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| 2. | PERFORM CALIBRATION |
(a) Perform the following procedure depending on the memory conditions to register the vehicle information into the rear television camera assembly.
(1) Rear television camera assembly optical axis adjustment (back camera position setting).
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(2) Steering angle setting.
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|
| 3. | CHECK DTC OUTPUT |
(a) Clear the DTCs.
Chassis > Rear Camera > Clear DTCs(b) Recheck for DTCs and check that no DTCs are output.
Chassis > Rear Camera > Trouble CodesHINT:
- If DTC C1611 is output, perform the procedure to allow the rear television camera assembly to store the vehicle information again.
- If DTC C1611 is still output after performing the procedure to make the rear television camera assembly store the vehicle information 3 times, replace the rear television camera assembly.
| Result | Proceed to |
|---|---|
| DTC C1611 is output | A |
| DTC C1611 is not output | B |
| A | | REPLACE REAR TELEVISION CAMERA ASSEMBLY |
| B | | END |
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Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. HINT: Using the Techstream to read the Data List allows the values or states of
