Inspection Procedure

1. Disconnect the connector of the pattern select switch.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Specified Condition
   4 - Body ground	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 1: Identifying Pattern Select Switch Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

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

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Switch Condition	Tester Connection	Specified Condition
   Pattern select switch continuously pressed (2nd STRT)	3 - 4	Below 1 Ω
   Pattern select switch released (2nd STRT)	↑	10 kΩ or higher

   Fig 2: Identifying Pattern Select Switch Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE PATTERN SELECT SWITCH ASSEMBLY 

OK: Go to Next Step 

1. Connect the connector of the pattern select switch.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Switch Condition	Tester Connection	Specified Condition
   Pattern select switch continuously pressed (2nd STRT)	E8-27 (SNWI) - Body ground	Below 1 Ω
   Pattern select switch released (2nd STRT)	↑	10 kΩ or higher

   Fig 3: Identifying Pattern Select Switch Connector Terminal And ECM Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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