NOTE: For information on connector terminal identification and test conditions specified in the following tables, see THROTTLE POSITION SENSOR in ON-VEHICLE ADJUSTMENTS article.

THROTTLE POSITION (TP) SENSOR RESISTANCE (ALL MODELS)

Test Condition ⁽¹⁾

Ohms

B2300, B3000, B4000, Mazda6 & Tribute

⁽³⁾

Miata

Between Terminals "A" & "B"

2500-5000

Between Terminals "B" & "C"

200-1100

MPV ⁽²⁾

3200-4800

Protege & Protege5 ⁽²⁾

4000-6000

⁽¹⁾	With throttle closed.

⁽²⁾	Between terminals "A" & "C". See Fig 1.

⁽³⁾	Information not available.

Fig 1: Identifying TP Sensor Connector Terminals (MPV, Protege & Protege5)

Courtesy of MAZDA MOTORS CORP.

THROTTLE POSITION (TP) SENSOR VOLTAGE

ECM/PCM Wire Color ⁽¹⁾

Closed Throttle Volts ⁽²⁾

⁽²⁾ Wide Open Throttle Volts

B2300, B3000, B4000 & Tribute

Gray/White (89)

0.49

4.65

Mazda6

2.3L

Sensor No. 1 (3M)

0.40-0.60

4.25-4.75

Sensor No. 2 (3J)

4.40-4.60

0.25-0.75

3.0L

Sensor No. 1 (89)

4.16-4.75

0.30-1.28

Sensor No. 2 (63)

0.31-1.05

4.23-4.64

Miata

Green/Black (4V)

0.1-1.1

3.0-4.6

MPV

Brown/Yellow (89)

0.7-1.2

4.0-5.0

Protege & Protege5

Brown/Yellow (89)

0.1-1.1

3.0-4.6

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

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

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.

Safety Warning

Throttle Position Sensor

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?