CAUTION / NOTICE / HINT
HINT:
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PROCEDURE
1. | VEHICLE BROUGHT TO WORKSHOP |
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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 |
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3. | PRE-CHECK |
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
(b) Check the fuses and relays.
(c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.
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4. | CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check for CAN communication system DTCs.
Click here
Result | Proceed to |
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CAN DTCs are not output | A |
CAN DTCs are output | B |
B | ![]() | GO TO CAN COMMUNICATION SYSTEM |
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5. | CHECK FOR DTC* |
(a) Using the Techstream, Check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes Result | Proceed to |
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DTCs are not output | A |
DTC C1AA800 is output | B |
DTC other than C1AA800 is output | C |
A | ![]() | GO TO STEP 7 |
B | ![]() | GO TO DTC CHART (C1AA8000) |
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6. | RECONFIRM DTC OUTPUT* |
(a) Using the Techstream, Clear the DTCs.
Chassis > Front Recognition Camera > Clear DTCs(b) Reproduce the vehicle conditions that were present when the DTCs that were noted were stored.
HINT:
Refer to each corresponding DTC for details on the detection conditions.
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(c) Using the Techstream, check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes Result | Proceed to |
---|---|
DTCs are not output | A |
DTCs are output | B |
B | ![]() | GO TO DTC CHART |
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7. | CHECK VEHICLE CONTROL HISTORY* |
(a) Using the Techstream, check for Vehicle Control History (RoB).
Chassis > Front Recognition Camera > Utility Tester Display |
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Vehicle Control History (RoB) |
(b) Make a note of the output Vehicle Control History (RoB).
Result | Proceed to |
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Vehicle Control History (RoB) is not output | A |
Vehicle Control History (RoB) other than X2015 and X201C is output | |
Vehicle Control History (RoB) X2015 or X201C is output | B |
B | ![]() | GO TO VEHICLE CONTROL HISTORY (X2015 or X201C) |
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8. | RECONFIRM VEHICLE CONTROL HISTORY* |
(a) Using the Techstream, clear the Vehicle Control History (RoB).
Chassis > Front Recognition Camera > Utility Tester Display |
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Vehicle Control History (RoB) |
(b) Using the Techstream, check for Vehicle Control History (RoB).
Chassis > Front Recognition Camera > Utility Tester Display |
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Vehicle Control History (RoB) |
Result | Proceed to |
---|---|
Vehicle Control History (RoB) is not output | A |
Vehicle Control History (RoB) is output | B |
A | ![]() | GO TO SYMPTOM SIMULATION |
B | ![]() | GO TO VEHICLE CONTROL HISTORY |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Steering Lock System: Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) The steering lock ECU (steering lock actuator or upper bracket assembly) stores DTCs when a malfunction occurs in the system. These DTCs can be confirmed by using the Techstream. NOTICE:
When using the Techstream with the engine switch off to confirm DTCs or Data ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Front Camera System: Data List / Active Test
DATA LIST / ACTIVE TEST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. The actual values may differ from the values listed in the chart under "Reference Value" ...