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 MANUALSMAZDA20113 MAZDASPEED, 2.3 3REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 64 (ENGINE CONTROLS [SENSOR OPERATING RANGE CHARTS])INTRODUCTIONTHROTTLE POSITION SENSOR

2011 Mazda 3 Mazdaspeed, 2.3 3

Throttle Position Sensor

2011 Mazda 3 Mazdaspeed, 2.3 3SECTION Throttle Position Sensor

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Mazda Tribute, 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, and 2003 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

THROTTLE POSITION (TP) SENSOR VOLTAGE

ECM/PCM Wire Color ⁽¹⁾

Closed Throttle Volts ⁽²⁾

⁽²⁾ Wide Open Throttle Volts

B2300 ⁽³⁾

0.53-1.27

1.1-1.9

B3000

A/T ⁽³⁾

0.53-1.27

1.2-1.7

M/T ⁽³⁾

0.53-1.27

1.2-1.5

B4000

A/T ⁽³⁾

0.53-1.27

1.2-1.7

M/T ⁽³⁾

0.53-1.27

1.2-1.5

Mazda6

2.3L ⁽⁴⁾

Brown/Yellow (3M)

0.4-0.6

4.25-4.75

Brown/Black (3J)

4.4

0.25-0.75

3.0L

⁽⁵⁾

Miata

⁽⁵⁾

MPV ⁽⁶⁾

3200-4800 Ohms

⁽⁵⁾

Protege ⁽⁶⁾

4000-6000 Ohms

⁽⁵⁾

Tribute

⁽³⁾

0.53-1.27

1.3-2.0

⁽³⁾

0.53-1.27

1.0-1.5

⁽¹⁾	Measure voltage between ground and ECM/PCM terminal No. in parentheses.

⁽²⁾	Voltage measurement should change gradually and smoothly as throttle is opened.

⁽³⁾	Test pins located on breakout box. See Fig 1 or Fig 4 .

⁽⁴⁾	For PCM connector pin identification, see Fig 2 .

⁽⁵⁾	Information not available from manufacturer.

⁽⁶⁾	Measure the resistance between TP sensor terminals "A" and "C" using an ohmmeter. See Fig 3 or Fig 4 .

Fig 1: Identifying TP Sensor Terminals (B2300, B3000 & B4000)

Courtesy of MAZDA MOTORS CORP.

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.