CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. | VEHICLE BROUGHT TO WORKSHOP |
|
2. | CUSTOMER PROBLEM ANALYSIS |
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 |
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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 CABIN |
(a) Check that condensation is not likely to occur in the cabin and that the temperature is not high or extremely low in the cabin.
OK:
Condensation is not likely being produced and the temperature is not high or extremely low.
HINT:
NG | ![]() | SET CABIN TO APPROPRIATE TEMPERATURE |
|
5. | CHECK NAVIGATION SYSTEM NORMAL CONDITION |
(a) Refer to Check System Normal Condition.
Click here
Result | Proceed to |
---|---|
Symptom is not normal operation. | A |
Symptom is normal operation. | B |
B | ![]() | END |
|
6. | 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 |
|
7. | CHECK FOR DTC* |
(a) Check for DTCs.
Body Electrical > Navigation System > Trouble Codes Result | Proceed to |
---|---|
DTCs are output. | A |
DTCs are not output. | B |
B | ![]() | GO TO STEP 11 |
|
8. | DTC CLEAR* |
(a) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCsHINT:
The present DTCs may not indicate actual malfunctions depending on the vehicle operating conditions.
|
9. | RECHECK FOR DTC* |
(a) Recheck for DTCs.
Body Electrical > Navigation System > Trouble Codes Result | Proceed to |
---|---|
DTCs are output. | A |
DTCs are not output. | B |
HINT:
B | ![]() | GO TO STEP 11 |
|
10. | DIAGNOSTIC TROUBLE CODE CHART |
(a) Find the output DTC in Diagnostic Trouble Code Chart.
Click here
NEXT | ![]() | GO TO STEP 13 |
11. | 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 symptoms do not recur and no DTCs are output, attempt to reproduce the symptoms.
Click here
B | ![]() | GO TO STEP 13 |
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12. | PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM |
(a) Refer to Terminals of ECU.
Click here
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13. | CHECK CIRCUIT |
(a) Adjust, repair or replace as necessary.
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14. | RECHECK FOR DTC* |
(a) After clearing DTCs, recheck for DTCs.
Body Electrical > Navigation System > Clear DTCs Body Electrical > Navigation System > Trouble Codes
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15. | PERFORM CONFIRMATION TEST |
NEXT | ![]() | END |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Fuel System: Precaution
PRECAUTION CAUTION:
The fuel tank assembly is very heavy. Be sure to follow the procedure described in the repair manual, or the fuel tank assembly may fall off the engine lifter.
To prevent serious injury due to fuel spray from the high-pressure fuel lines, always discharge fuel system pressu ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Sfi System: HO2S Heater Control Bank 1 Sensor 1 Circuit Short to Battery (P003012,P003013,P005012,P005013,P101A9E,P103A9E)
DESCRIPTION Refer to DTC P219519. Click here HINT:
When any of these DTCs are stored, the ECM enters fail-safe mode. The ECM turns off the air fuel ratio sensor heater in fail-safe mode. Fail-safe mode continues until the engine switch is turned off.
Although the DTC titles say oxygen sensor ...