2008 Lexus ES 350FACTORY OEM SERVICE PROCEDURE

How To Proceed With Troubleshooting

HINT:

  • Use this procedure to troubleshoot the active engine mounting system.
  • Techstream should be used in steps  2,  6 and  7.
  1. VEHICLE BROUGHT TO WORKSHOP 
  2. CUSTOMER PROBLEM ANALYSIS 
  3. INSPECT BATTERY VOLTAGE 

    Standard Voltage: 

    11 to 14 V 

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

  4. CHECK AND CLEAR DTCS 
    1. Refer to the DTC CHECK / CLEAR .
  5. VISUAL INSPECTION 
  6. PERFORM ACTIVE TEST 
    1. Connect Techstream to the DLC3.
    2. Start the engine.
    3. Select the item "Powertrain / E-ACM / Active Test / Check the E-ACM".
  7. CHECK FOR DTC 
    1. Check for DTCs and note any codes that are output.
    2. Delete the DTC.
    3. Recheck for DTCs. Try to prompt the DTC by simulating the original activity that the DTC suggests.

      Result 

      RESULT CHART

      Result Proceed to
      DTC does not reoccur A
      DTC reoccurs B

    B:  GO TO DTC CHART

    A: Go to next step. 

  8. OVERALL ANALYSIS AND TROUBLESHOOTING 
    1. Terminals of ECU (See TERMINALS OF ECU  ).
  9. ADJUST, REPAIR OR REPLACE 
  10. CONFIRMATION TEST 

    NEXT: END 

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

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

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

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.