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.
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HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 167 (ANTI-LOCK BRAKE SYSTEM)COMPONENT TESTSSENSOR SIGNAL CHECKUSING TOYOTA HAND-HELD TESTER
2004 Toyota Celica GT, Standard
Using TOYOTA Hand-Held Tester
2004 Toyota Celica GT, StandardSECTION Using TOYOTA Hand-Held Tester
WARNING: This page is about a different car, the 2003 Toyota Prius, 2002 Toyota Prius, and 2001 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
- To check DTC, hook up TOYOTA hand-held tester to DLC3. Start the engine and check that the ABS warning light blinks. If it DOES NOT blink, inspect ABS warning light circuit and Ts terminal circuit. See ABS WARNING LIGHT or Ts TERMINAL under SYSTEM TESTS.
- Keep vehicle in stationary condition and the brake pedal in free condition for 1 second or longer. Keeping the vehicle in stationary condition, depress the brake pedal with 22 Ft. Lbs. (98 N.m) or more for 1 second or longer. Drive vehicle straight forward, faster than 28 mph for several seconds, check that the ABS warning light goes off and stop the vehicle.
- Read the DTC by following prompts on tester screen. Please refer to TOYOTA hand-held tester operator's manual.
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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.