CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. | VEHICLE BROUGHT TO WORKSHOP |
|
2. | INSPECT BATTERY VOLTAGE |
(a) Turn the engine switch off.
(b) Measure the voltage of the battery.
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.
|
3. | CHECK DTC AND FREEZE FRAME DATA* |
HINT:
Refer to DTC Check / Clear.
Click here
|
4. | PROBLEM SYMPTOM CONFIRMATION |
Result | Proceed to |
---|---|
Symptom does not occur. | A |
Symptom occurs. | B |
B | ![]() | GO TO STEP 6 |
|
5. | SYMPTOM SIMULATION |
|
6. | CHECK CAN COMMUNICATION SYSTEM* |
(a) Check for DTCs.
Click here
Result | Proceed to |
---|---|
CAN communication system DTCs are not output. | A |
CAN communication system DTCs are output. | B |
HINT:
B | ![]() | PROCEED TO CAN COMMUNICATION SYSTEM |
|
7. | CHECK FOR DTC* |
(a) Check for DTCs.
Click here
HINT:
Refer to Diagnostic Trouble Code Chart when any DTCs are output.
Click here
Result | Proceed to |
---|---|
DTCs are not output. | A |
DTCs are output. | B |
B | ![]() | GO TO STEP 10 |
|
8. | 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 |
B | ![]() | GO TO STEP 10 |
|
9. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Refer to Terminals of ECU.
Click here
(b) Refer to Data List / Active Test.
Click here
|
10. | REPAIR OR REPLACE |
|
11. | CONFIRMATION TEST |
NEXT | ![]() | END |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Network Gateway Ecu: Installation
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Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Window Control System: All Power Windows do not Operate with Driver Side Door Key Cylinder or Wireless Transmitter
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