Pattern Select Switch Power Mode Circuit: Procedure

B → See step   9 

A: Go to next step 

B → GO TO DTC CHART 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Body Electrical / Combination Meter / Active Test / Indicat. Lamp ECT PWR.
4. Perform the "Indicat. Lamp ECT PWR" Active Test.
   OK
   
   

   Tester Display	Description	Inspection Condition	Specified Condition
   Indicat. Lamp ECT PWR	Pattern select indicator light (PWR)	POWER mode	Comes on

   Result

   Result	Proceed to
   The POWER mode indicator light comes on	A
   The POWER mode indicator light does not come on	B

B → See step   10 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Data List / Pattern Switch (PWR/M).
4. Read the value displayed on the Techstream.

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Pattern Switch (PWR/M)	POWER mode switch condition/ ON or OFF	POWER mode switch ON: ON POWER mode switch OFF: OFF	-

   Result

   Result	Proceed to
   The Techstream display changes according to the POWER mode switch operation.	A
   The Techstream display does not changes according to the POWER mode switch operation.	B

B → See step   5 

A → See step   8 

1. Remove the integration control and panel sub-assembly (POWER MODE switch).
   Fig 1: Identifying Pattern Select Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L78-7 (PWR) - L78-5 (E)	POWER MODE Switch ON	Below 1 Ω
   L78-7 (PWR) - L78-5 (E)	POWER MODE Switch OFF	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Integration Control and Panel Sub-assembly (POWER MODE Switch))

3. Install the integration control and panel sub-assembly.

NG → See step   11 

OK: Go to next step 

1. Disconnect connector L78 from the integration control and panel sub-assembly (POWER MODE switch).
2. Measure the resistance according to the value(s) in the table below.
   Fig 2: Checking Harness And Connector (Power Mode Switch - Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L78-5 (E) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Integration Control and Panel Sub-assembly (POWER MODE Switch))

3. Connect the integration control and panel sub-assembly connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect connector L78 from the integration control and panel sub-assembly (POWER MODE switch).
2. Disconnect connector A57 from the ECM.
3. Measure the resistance according to the value(s) in the table below.
   Fig 3: Identifying L78 And A57 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L78-7 (PWR) - A57-46 (PWMS)	Always	Below 1 Ω
   L78-7 (PWR) or A57-46 (PWMS) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Integration Control and Panel Sub-assembly (POWER MODE Switch))
   *2	Front view of wire harness connector (to ECM)

4. Connect the integration control and panel sub-assembly connector.
5. Connect the ECM connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   12