Drive Mode Switch Circuit: Procedure

1. Check each symptom by checking the suspected areas in the table below.

   Result

   Result	Proceed to
   SPORT mode or NORMAL mode is abnormal.	A
   ECO mode is abnormal.	B

B → See step   8 

A: Go to next step 

1. Check for DTCs. Refer to DIAGNOSIS SYSTEM [06/2012 - ] .

   OK

   DTCs are not output.

NG → See step   9 

OK: Go to next step 

1. Turn the engine switch off.
2. Disconnect the H71 drive mode 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	Specified Condition
   H71-5 (E) - Body ground	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Drive Mode Switch (Integration Control and Panel Assembly))

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Inspect drive mode switch (integration control and panel assembly). Refer to INSPECTION [06/2012 - ] .

   OK

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

NG → See step   7 

OK: Go to next step 

1. Reconnect the connector of the drive mode switch (integration control and panel assembly).
2. Disconnect the A22 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
   A22-11 (SPCN) - Body ground	SPORT mode switch being turned and held at SPORT position (SPORT mode)	10 kΩ or higher
   ↑	NORMAL mode switch being pushed and held (NORMAL mode)	Below 1 Ω
   A22-24 (PWMS) - Body ground	SPORT mode switch not turned (NORMAL mode)	10 kΩ or higher
   ↑	SPORT mode switch being turned and held at SPORT position (SPORT mode)	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   6