Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Scion tC L4-2.5L (2AR-FE)FACTORY OEM SERVICE PROCEDURE
Electrical Specifications
SPECIFICATIONS: 2AR-FE ENGINE CONTROL: SERVICE DATA
SPARK PLUG
CAMSHAFT TIMING OIL CONTROL VALVE
THROTTLE BODY
ACCEL SENSOR OUT NO. 1
ACCEL SENSOR OUT NO. 2
MASS AIR FLOW METER
CRANKSHAFT POSITION SENSOR
ENGINE COOLANT TEMPERATURE SENSOR
KNOCK SENSOR
AIR FUEL RATIO SENSOR
HEATED OXYGEN SENSOR
INTEGRATION RELAY (IG2)
INTEGRATION RELAY (EFI)
INTEGRATION RELAY (EFI NO. 2)
INSTRUMENT PANEL JUNCTION BLOCK (C/OPN)
Factory Service Tools
Use the Manual With the Right Hardware
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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.