Drive Mode Select Switch Circuit [09/2015 - ]: Procedure

1. Check for DTCs.
   RESULT
   
   

   Result	Proceed to
   CAN communication system DTCs are not output	A
   CAN communication system DTCs are output	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - 08/2020] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2020 - ] )

Result: 

A 

See step  2

1. Turn the engine switch off.
2. Disconnect the V12 drive mode select switch (integration control and panel assembly) connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   V12-1 (E) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   * a	Front view of wire harness connector (to Drive mode select switch (integration control and panel assembly))

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Inspect drive mode select switch (integration control and panel assembly). to INSPECTION [09/2015 - ] .

   OK

   Drive mode select switch (integration control and panel assembly) is normal.

Result: 

NG 

REPLACE DRIVE MODE SELECT SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) 

(Refer to REMOVAL [09/2015 - ] )

Result: 

OK 

See step  4

1. Reconnect the V12 drive mode select switch (integration control and panel assembly) connector.
2. Disconnect the A38 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A38-34 (PWMS) - Body ground	SPORT mode switch being turned and held	Below 50 Ω
   A38-34 (PWMS) - Body ground	SPORT mode switch not turned	10 kΩ or higher
   A38-49 (SPCN) - Body ground	NORMAL mode switch being pushed and held	Below 50 Ω
   A38-49 (SPCN) - Body ground	NORMAL mode switch not pushed	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   * a	Front view of wire harness connector (to ECM)

Result: 

OK 

REPLACE ECM 

(Refer to REMOVAL [09/2015 - ] )

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR