Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
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| 2. | INSPECT BATTERY VOLTAGE |
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
|
| 3. | CHECK CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Click here .gif)
| Result | Proceed to |
|---|---|
| CAN DTCs are not output. | A |
| CAN DTCs are output. | B |
| B | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
| 4. | CHECK FOR DTCs* |
(a) Check for DTCs.
Click here
| Result | Proceed to |
|---|---|
| DTCs are not output. | A |
| DTCs are output. | B |
| B | | GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
| 5. | PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
| Result | Proceed to |
|---|---|
| Problem symptom does not occur. | A |
| Problem symptom occurs. | B |
| B | | GO TO STEP 7 |
|
| 6. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Terminals of ECU.
Click here
(b) Data List / Active Test.
Click here
|
| 7. | REPAIR |
|
| 8. | CONFIRMATION TEST |
| NEXT | | END |
Freeze Frame Data
FREEZE FRAME DATA FREEZE FRAME DATA NOTICE:
Freeze frame data values will vary depending on the measurement conditions, surroundings, or vehicle conditions. For this reason, there may be a problem ...
IG Power Source Circuit
DESCRIPTION When the engine switch is turned on (IG), the IG power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU. The multiplex tilt and telescopic ECU also rec ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Dynamic Torque Control Awd System: Engine Circuit Malfunction (C1280)
DESCRIPTION If a malfunction in the ECM circuit is detected, the 4WD ECU assembly stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area C1280 Engine Circuit Malfunction When the following continues for 5 seconds or more:
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Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Air Conditioning System: Passenger Side FACE Servo Motor Circuit (B1448/48)
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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