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 MANUALSMAZDA20083 S TOURING, 4D HATCHBACK, 2.3 4, STANDARDREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLDYNAMIC STABILITY CONTROL SYSTEMSTEERING ANGLE SENSOR INSPECTION

2008 Mazda 3 s Touring, 4D Hatchback, 2.3 4, Standard

Steering Angle Sensor Inspection

2008 Mazda 3 s Touring, 4D Hatchback, 2.3 4, StandardSECTION Steering Angle Sensor Inspection

Remove the column cover.
Turn the ignition switch to the ON position and measure the voltage between steering angle sensor terminal A and ground.
- If there is any malfunction, inspect the wiring harness between steering angle sensor terminal A and DSC HU/CM terminal AB. Repair or replace if necessary.
Standard voltage B+
Measure the voltage between steering angle sensor terminal D and ground.
- If there is any malfunction, inspect the wiring harness between steering angle sensor terminal D and DSC HU/CM terminal AH. Repair or replace if necessary.
  
  Fig 1: Identifying Steering Angle Sensor Connector Terminals
  Courtesy of MAZDA MOTORS CORP.
Standard voltage 0V
Turn the ignition switch off.
Connect the M-MDS to the DLC-2.
Select the "SWA_POS" PID.
Verify the SWA_POS changes when the steering wheel is turned to the left and right.
- If there is any malfunction, replace the steering angle sensor. (See CLOCK SPRING REMOVAL/INSTALLATION .)
  
  Fig 2: Identifying DLC-2 Connector
  Courtesy of MAZDA MOTORS CORP.
Standard When the steering wheel is turned to the left: SWA_POS changes positively.

When the steering wheel is turned to the right: SWA_POS changes negatively.

RENDER: 1.0x

NO RELATED

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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.