Inspection Procedure

When the pattern select switch (PWR) is pushed, switch contact is made and power mode is selected. To cancel power mode, push the pattern select switch (PWR) once again.

1. INSPECT NO. 1 PATTERN SELECT SWITCH ASSEMBLY (PWR) 
   1. Remove the No. 1 pattern select switch assembly (See REMOVAL ).
   2. 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 switch (PWR) on	Below 1 Ω
   4 (P) - 3 (E)	Pattern select switch (PWR) off	10 kΩ or higher

   Fig 1: Identifying Pattern Select Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPLACE NO. 1 PATTERN SELECT SWITCH ASSEMBLY  (See PATTERN SELECT SWITCH )

   OK: Go to next step 

2. CHECK HARNESS AND CONNECTOR (NO. 1 PATTERN SELECT SWITCH ASSEMBLY BODY GROUND) 
   1. Disconnect the V5 No. 1 pattern select switch assembly connector.
   2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   V5-3 (E) - Body ground	Always	Below 1 Ω

   Fig 2: Identifying Pattern Select Switch Connector Terminal (E)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to next step 

3. CHECK HARNESS AND CONNECTOR (NO. 1 PATTERN SELECT SWITCH - ASSEMBLY ECM) 
   1. Disconnect the A38 ECM connector.
   2. Measure the resistance according to the value(s) in the table below.

Standard Resistance 

Fig 3: Identifying A38 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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