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.

2008 Lexus LX 570FACTORY OEM SERVICE PROCEDURE

Pattern Select Switch: Inspection

REMOVE NO. 1 PATTERN SELECT SWITCH ASSEMBLY

Measure the resistance according to the value(s) in the table below.

Standard Resistance

STANDARD RESISTANCE SPECIFICATION

Tester Connection	Switch Condition	Specified Condition
4 (P) - 3 (E)	Pattern select (PWR) switch on	Below 1 Ω
4 (P) - 3 (E)	Pattern select (PWR) switch off	10 kΩ or higher
2 (2ND) - 3 (E)	Pattern select (2ND) switch continuously pressed	Below 1 Ω
2 (2ND) - 3 (E)	Pattern select (2ND) switch released	10 kΩ or higher

If the result is not as specified, replace the No. 1 pattern select switch assembly.

Fig 1: Identifying Pattern Select Switch Connector Terminals

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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.