2005 Scion xB AutomaticFACTORY OEM SERVICE PROCEDURE

Service Data

Engine Control System Service Data

Idle speed control valve assy  
Movement Ignition switch ON Half open → fully close → fully open → half open
Air flow meter  
Resistance THA-E2  
at -20°C (-4°F) 13.6 to 18.4 kΩ
at 20°C (68°F) 2.21 to 2.69 kΩ
at 60°C (140°F) 0.49 to 0.67 kΩ
Camshaft oil control valve assy  
Resistance at 20°C (68°F) 6.9 to 7.9 Ω
Throttle position sensor  
Resistance VC-E2 2.5 to 6.0 kΩ
Engine coolant temperature sensor  
Resistance Approx. 20°C (68°F) 2.29 to 2.60 kΩ
Approx. 80°C (176°F) 0.301 to 0.327 kΩ
EFI relay  
Specified condition 3-5 10 kΩ or higher
Below 1 Ω (Apply battery voltage to terminal 1 and 2)
Circuit opening relay  
Specified condition 3-5 10 kΩ or higher
Below 1 Ω (Apply battery voltage to terminal 1 and 2)
Factory Service Tools

Use the Manual With the Right Hardware

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

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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.

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