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.

2003 Toyota Matrix Base, 4WDFACTORY OEM SERVICE PROCEDURE

Abs Speed Sensor Front LH: Replacement

NOTE: Replace the RH side by the same procedure as the LH side.

REMOVE FRONT WHEEL
REMOVE FRONT FENDER LINER LH
REMOVE SPEED SENSOR FRONT LH
1. Disconnect the speed sensor wire harness clamp from the body.
2. Disconnect the speed sensor connector.
  
  Fig 1: Disconnecting Speed Sensor Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the 2 clamp bolts holding the sensor harness from the body and shock absorber.
  
  Fig 2: Removing Sensor Harness Clamps From Body & Shock Absorber
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Remove the bolt and speed sensor front LH.
NOTE: Keep on the sensor tip clean.
INSTALL SPEED SENSOR FRONT LH
1. Install the speed sensor front LH with the bolt
  
  Fig 4: Installing Speed Sensor Front LH & Bolt
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Torque: 8.0 N.m (82 kgf.cm, 71 in.lbf)
  
  NOTE: Make sure the sensor tip is clean.
2. Install the sensor harness clamp with the 2 bolts "A" and "B" to the body and shock absorber.
  
  Fig 5: Installing Sensor Harness Clamp To Body & Shock Absorber
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Torque:
  
  Bolt A: 8.0 N.m (82 kgf.cm, 71 in.lbf)
  
  Bolt B: 29 N.m (296 kgf.cm, 21 ft.lbf)
3. Connect the speed sensor connector.
4. Connect the speed sensor wire harness clamp to the body.
INSTALL FRONT FENDER LINER LH
INSTALL FRONT WHEEL
Torque: 103 N.m (1,050 kgf.cm, 76 ft.lbf)
CHECK ABS SPEED SENSOR SIGNAL (See PRE-CHECK )

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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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