Lexus NX: ECU Malfunction (C1611)
DESCRIPTION
If the clearance warning ECU assembly detects an internal malfunction during self-diagnosis, DTC C1611 is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1611 | ECU Malfunction |
| Clearance warning ECU assembly |
CAUTION / NOTICE / HINT
NOTICE:
-
After the power switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
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-
When disconnecting and reconnecting the auxiliary battery
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HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
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-
After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).
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PROCEDURE
| 1. | CHECK FOR DTC |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
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HINT:
After turning the power switch from off to on (IG), wait 3 seconds or more before checking for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes(b) Clear the DTCs according to the screen on the Techstream.
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(c) Recheck for DTCs.
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| Result | Proceed to |
|---|---|
| DTC C1611 is output | A |
| DTC C1611 is not output | B |
| A | .gif) | REPLACE CLEARANCE WARNING ECU ASSEMBLY |
| B | | USE SIMULATION METHOD TO CHECK |
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Parts Location
PARTS LOCATION ILLUSTRATION *1 AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1) *2 CHARCOAL CANISTER ASSEMBLY *3 EGR VALVE ASSEMBLY *4 FUEL TANK CAP ASSEMBLY *5 HEATED OXYGEN SENSOR (for Bank 1 Sensor 2) *6 PCV VALVE *7 PURGE VSV *8 NO. 1 ENGINE ROOM RELAY BLOCK AN
Removal
REMOVAL CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the parts may injure your hands. PROCEDURE 1. REMOVE REAR SEAT ASSEMBLY Click here 2. REMOVE REAR SEATBACK COVER Click here 3. REMOVE REAR SEAT INNER WITH CENTER BELT ASSY RH (for RH Side) Click here 4. REMOVE REAR
