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 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Accelerator Pedal Position Sensor

ACCELERATOR PEDAL POSITION SENSOR RESISTANCE

Application

Terminals ⁽¹⁾

Ohms @ 68°F (20°C)

GS300 & IS300

VC & E2

1200-3200

ES300

VCP1 & EP1

2250-4750

.....

VCP2 & EP2

2250-4750

GS430, LS430 & SC430

VCP1 & EP1

1500-6000

.....

VCP2 & EP2

1500-6000

GX470 & LX470

⁽²⁾

⁽¹⁾	For accelerator pedal position sensor terminal identification, see Fig 1, Fig 2 or Fig 3 .

⁽²⁾	Information not available from manufacturer.

Fig 1: Identifying Accelerator Pedal Position Sensor Terminals (ES300, GS430, LS430 & SC430)

Factory Service Tools

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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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