Lexus NX: CAN Communication Failure (Message Registry) (U1000)
Lexus NX Service Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Intuitive Parking Assist System (w/ Intelligent Clearance Sonar System) / CAN Communication Failure (Message Registry) (U1000)
DESCRIPTION
If DTC U1000 is stored frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again even if the DTC is not output when rechecking for DTCs.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U1000 | CAN Communication Failure (Message Registry) | ECU malfunction | Clearance warning ECU assembly |
PROCEDURE
| 1. | CHECK FOR DTC |
(a) Clear the DTCs.
Click here .gif)
(b) Check for DTCs.
Click here
OK:
DTC U1000 is not output.
HINT:
If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even if the DTC was not output when rechecking for DTCs.
Click here
| OK | .gif) | USE SIMULATION METHOD TO CHECK |
| NG | | REPLACE CLEARANCE WARNING ECU ASSEMBLY |
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No. 1 Clearance Warning Buzzer Circuit
DESCRIPTION This circuit consists of the No. 1 clearance warning buzzer and clearance warning ECU assembly. An ECU-excited type buzzer is used. The ECU operates the buzzers using a sound pattern that
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DESCRIPTION This circuit provides power to operate the clearance warning ECU assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before perf
No. 2 Clearance Warning Buzzer Circuit
DESCRIPTION This circuit consists of the No. 2 clearance warning buzzer and clearance warning ECU assembly. An ECU-excited type buzzer is used. The ECU operates the buzzers using a sound pattern that
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Back door
The back door can be opened using
the back door open switch, smart
access system with push-button
start or wireless remote control.
WARNING
■Caution while driving
Keep the back door closed while driving.
If the back door is left open, it may hit
nearby objects while driving or lugga
Inspection
INSPECTION CAUTION / NOTICE / HINT NOTICE:
When using a vise, place aluminum plates between the part and vise.
When using a vise, do not overtighten it.
PROCEDURE 1. INSPECT TIE ROD END SUB-ASSEMBLY LH (a) Secure the tie rod end between aluminum plates in a vise. NOTICE: Do not overtighte
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