Lexus NX: How To Proceed With Troubleshooting

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

CONFIRM PROBLEM SYMPTOMS

NEXT

3.

CUSTOMER PROBLEM ANALYSIS

(a) Check if the vehicle has been jump started due to a discharged auxiliary battery.

Result

Proceed to

The vehicle has never been jump started.

A

The vehicle has been jump started due to a discharged auxiliary battery.

B

B

GO TO ON-VEHICLE INSPECTION / CHECK AUXILIARY BATTERY VOLTAGE

A

4.

CAN COMMUNICATION SYSTEM CHECK

(a) Using the Techstream, display the CAN Bus Check screen and check that all ECUs and sensors that are connected to the CAN communication system are displayed on the screen.

NG

GO TO CAN COMMUNICATION SYSTEM

OK

5.

CHECK FOR DTCS

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO DTC CHART

A

6.

ON-VEHICLE INSPECTION

Result

Proceed to

Malfunctioning area has not been determined

A

Malfunctioning area has been determined

B

B

GO TO STEP 8

A

7.

CHECK FOR INTERMITTENT PROBLEMS

NEXT

8.

REPAIR OR REPLACE

NEXT

END

READ NEXT:

 On-vehicle Inspection

ON-VEHICLE INSPECTION PROCEDURE 1. CHECK AUXILIARY BATTERY (a) Check that the auxiliary battery cables are connected to the correct terminals. HINT: If they are not, connect them properly. (b) Check t

 Networking

 Can Communication System

SEE MORE:

 Blind Spot Monitor Slave Module (C1AB7)

DESCRIPTION This DTC is stored when the blind spot monitor sensor RH detects an internal malfunction. DTC No. Detection Item DTC Detection Condition Trouble Area Note C1AB7 Blind Spot Monitor Slave Module The blind spot monitor sensor RH (slave) detects an internal malfunction B

 Reassembly

REASSEMBLY CAUTION / NOTICE / HINT NOTICE: When using a vise, place aluminum plates between the part and vise. When using a vise, do not overtighten it. HINT: Use the same procedure for the RH and LH sides. The procedure listed below is for the LH side. PROCEDURE 1. INSTALL OUTBOARD

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