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 CHECKNOT USING TOYOTA HAND-HELD TESTER
2004 Toyota Celica GT, Standard
NOT Using TOYOTA Hand-Held Tester
2004 Toyota Celica GT, StandardSECTION NOT 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.
NOTE:
If the ignition switch is turned from ON the ACC or LOCK during test mode, DTC will be erased.
- Check the sensor signal. Turn the ignition OFF. Using special tool (09843-18040) start the engine. 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.NOTE: There is a case that the sensor check is not completed if the vehicle has its front wheels spun or its steering wheel turned during this check.
- 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.
- Stop the vehicle. Connect tool to Tc and CG terminals of DLC3. Read the number of blinks of the ABS warning light. For DTC definitions, see DIAGNOSTIC TROUBLE CODE DEFINITIONS . If every sensor is normal, a normal code is output. (A cycle of 0.25 second ON and 0.25 second OFF is repeated). If 2 or more malfunctions are indicated at the same time, the lowest numbered code will be displayed first.
- After doing the check, turn ignition OFF and disconnect tool from terminals.
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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.