How To Proceed With Troubleshooting

2010 Lexus LX 570 V8-5.7L (3UR-FE)SECTION How To Proceed With Troubleshooting




DOOR / HATCH: POWER BACK DOOR SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use the following procedures to troubleshoot the power back door system.
* *: Use the Techstream.
1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

NEXT -- Continue to next step.

3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally.





B -- Go to CAN COMMUNICATION SYSTEM Diagnosis System
A -- Continue to next step.

4. CHECK FOR DTC*

(a) Clear the DTC's Power Back Door System.

(b) Recheck for DTC's Power Back Door System.





B -- Go to DIAGNOSTIC TROUBLE CODE CHART Power Back Door System
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table Power Back Door System.





B -- Go to step 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check Operation Check.

(b) Terminals of ECU Power Back Door System.

(c) Data List / Active Test Power Back Door System.

NEXT -- Continue to next step.

7. REPAIR OR REPLACE

NEXT -- Continue to next step.

8. CONFIRMATION TEST

NEXT -- END
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.