INSPECT PATTERN SELECT SWITCH (PWR mode switch)

Measure the resistance of the switch.

Standard resistance

RESISTANCE REFERENCE CHART

Tester Connection	Switch Condition	Specified Condition
5-3	Pattern select switch (PWR)	Below 1 Ω
5-3	Pattern select switch (NORM)	10 kΩ or higher

NG: REPLACE PATTERN SELECT SWITCH

Fig 1: Measuring Resistance Between Pattern Select Switch Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step

CHECK WIRE HARNESS (PATTERN SELECT SWITCH - BODY GROUND)

Measure the resistance of the wire harness side connector.

Standard resistance

RESISTANCE REFERENCE CHART

Tester Connection	Specified Condition
E9-31 (PWR) - Body ground	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

Fig 2: Identifying E5 Pattern Select Switch Connector Terminals

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

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

Inspection Procedure