SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2009YARIS BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSTHEFT DETERRENTTHEFT DETERRENT SYSTEMHOW TO PROCEED WITH TROUBLESHOOTING
2009 Toyota Yaris Base, 4D Sedan, Automatic

How To Proceed With Troubleshooting

2009 Toyota Yaris Base, 4D Sedan, AutomaticSECTION How To Proceed With Troubleshooting

HINT:

  • Use this procedure to troubleshoot the theft deterrent system.
  • The Techstream should be used in steps  3 and  5.
  1. VEHICLE BROUGHT TO WORKSHOP 
  2. INSPECT BATTERY VOLTAGE 

    Standard voltage: 11 to 14 V 

    HINT:

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

  3. CHECK FOR DTC 
    1. Check for DTCs and note any codes that are output.
    2. Delete the DTCs.
    3. Check whether the same DTCs recur by simulating the conditions indicated by the DTCs noted in step (a) above.
      1. If no DTCs recur, proceed to A.
      2. If the same DTCs recur, proceed to B.

    B: Go to step   6 

    A: Go to Next Step 

  4. PROBLEM SYMPTOMS TABLE 
    1. If the fault is not listed in the problem symptoms table, proceed to A.
    2. If the fault is listed in the problem symptoms table, proceed to B.

    B: Go to step   6 

    A: Go to Next Step 

  5. OVERALL ANALYSIS AND TROUBLESHOOTING 
    1. See DATA LIST/ACTIVE TEST 
    2. See TERMINALS OF ECU 
    3. See SYSTEM DESCRIPTION 
  6. ADJUST, REPAIR OR REPLACE 
  7. CONFIRMATION TEST 
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

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

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.