CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. | VEHICLE BROUGHT TO WORKSHOP |
|
2. | CUSTOMER PROBLEM ANALYSIS |
HINT:
What | Vehicle model, system name |
When | Date, time, occurrence frequency |
Where | Road conditions |
Under what conditions? | Driving conditions, weather conditions |
How did it happen? | Problem symptoms |
|
3. | INSPECT BATTERY |
(a) Measure the battery voltage.
Standard voltage:
11 to 14 V
HINT:
If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
|
4. | CHECK CAN COMMUNICATION SYSTEM* |
(a) Check if CAN communication system DTCs are output.
Click here
Result | Proceed to |
---|---|
CAN DTCs are not output. | A |
CAN DTCs are output. | B |
B | ![]() | GO TO CAN COMMUNICATION SYSTEM |
|
5. | CHECK DTC* |
(a) Check for DTCs.
Safety connect system: Click here
Telematics system: Click here
Result | Proceed to |
---|---|
DTCs are not output. | A |
Safety connect system DTCs are output. | B |
Telematics system DTCs are output. | C |
B | ![]() | GO TO SAFETY CONNECT SYSTEM |
C | ![]() | GO TO TELEMATICS SYSTEM |
|
6. | CHECK VEHICLE OPERATION HISTORY* |
(a) Check for vehicle control history and note any codes that are output.
Click here
Result | Proceed to |
---|---|
No vehicle control history is output | A |
Any vehicle control history is output | B |
B | ![]() | GO TO VEHICLE CONTROL HISTORY |
|
7. | PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
Result | Proceed to |
---|---|
Fault is not listed in Problem Symptoms Table. | A |
Fault is listed in Problem Symptoms Table. | B |
HINT:
If the symptom does not recur and no DTCs are output, perform the simulation method.
Click here
B | ![]() | GO TO STEP 9 |
|
8. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Terminals of ECU
Click here
(b) Data List / Active Test
Click here
|
9. | REPAIR OR REPLACE |
|
10. | CONFIRMATION TEST |
NEXT | ![]() | END |
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Can Communication System: Check Bus 1 Line for Short to +B
DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 23 (CA1H) of the network gateway ECU and terminal 16 (BAT) of the DLC3, or terminal 8 (CA1L) of the network gateway ECU and terminal 16 (BAT) of the DLC3. Symptom Troubl ...
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Panoramic Moon Roof System: Operation Check
OPERATION CHECK CHECK AUTO OPERATION FUNCTION (FOR SLIDING ROOF) NOTICE:
Make sure that initialization has been completed before performing this inspection.
Click here
The sliding roof auto operation function can be customized. Make sure that the auto operation function is ON.
Click here ...