HYBRID CONTROL SYSTEM Pattern Select Switch Snow Mode Circuit

DESCRIPTION

When the SNOW mode switch (No. 2 satellite switch set) is operated, the SNOW mode signal is sent to the hybrid vehicle control ECU assembly, and drive torque is controlled so that operability is improved in response to operation of the accelerator pedal by the driver when driving on slippery roads, etc.

PROCEDURE

1. Click here

   READ VALUE USING GTS (CAN BUS CHECK)

   Result
   Proceed to A B

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the power switch on (IG).

   3. Turn the GTS on.

   4. Enter the following menus: System Select / CAN Bus Check.

      
      
      1. CAN Bus Check
      3. 
         

      Result
      Result Proceed to All of the ECUs and sensors that are currently connected to the CAN communication system are displayed. A None of the ECUs and sensors that are currently connected to the CAN communication system are displayed, or some of them are not displayed. B

   5. Turn the power switch off.

   
   
   • AClick here
   • B

     GO TO CAN COMMUNICATION SYSTEMClick here

2. Click here

   CHECK DTC OUTPUT (HEALTH CHECK)

   Result
   Proceed to A B

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the power switch on (IG).

   3. Turn the GTS on.

   4. Enter the following menus: System Select / Health Check.

   5. Check for DTCs.

      Result
      Result Proceed to No DTCs are output. A DTCs are output. B

   6. Turn the power switch off.

   
   
   • AClick here
   • B

     GO TO DTC CHART

3. Click here

   READ VALUE USING GTS (SNOW MODE SWITCH)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the power switch on (IG).

   3. Turn the GTS on.

   4. Enter the following menus: Powertrain / Hybrid Control / Data List / Snow Mode Switch.

      
      
      1. Powertrain > Hybrid Control > Data List

         Tester Display
         Snow Mode Switch

      2. 
         
         1. 
            
      3. 
         
         10. 
             

   5. Read the value displayed on the GTS.

      
      
      1. Powertrain > Hybrid Control > Data List

         Tester Display	Measurement Item	Range	Normal Condition
         Snow Mode Switch	Snow mode switch (No. 2 satellite switch set) condition	ON or OFF	Snow mode switch (No. 2 satellite switch set) not operated: OFF Snow mode switch (No. 2 satellite switch set) being pushed and held: ON

      2. 
         
         10. 
             

      Result
      Result Proceed to The display changes according to the snow mode switch (No. 2 satellite switch set) operation. A The display does not change according to the snow mode switch (No. 2 satellite switch set) operation. B

   6. Turn the power switch off.

   
   
   • A

     GO TO PROBLEM SYMPTOMS TABLEClick here

   • BClick here
4. Click here

   INSPECT SNOW MODE SWITCH (NO. 2 SATELLITE SWITCH SET)

   
   

   1. Inspect the snow mode switch (No. 2 satellite switch set).

      for 2WD:

      Click here

      for AWD:

      Click here

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     REPLACE SNOW MODE SWITCH (NO. 2 SATELLITE SWITCH SET) for 2WD:

     REPLACE SNOW MODE SWITCH (NO. 2 SATELLITE SWITCH SET)Click here

     REPLACE SNOW MODE SWITCH (NO. 2 SATELLITE SWITCH SET) for AWD:

     REPLACE SNOW MODE SWITCH (NO. 2 SATELLITE SWITCH SET)Click here

5. Click here

   CHECK HARNESS AND CONNECTOR (SNOW MODE SWITCH (NO. 2 SATELLITE SWITCH SET) - BODY GROUND)

   
   

   1. Disconnect the G59 snow mode switch (No. 2 satellite switch set) connector.

   2. 

      *a	Front view of wire harness connector (to Snow Mode Switch (No. 2 Satellite Switch Set))

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

      Standard Resistance
      Tester Connection Condition Specified Condition G59-7 (E) - Body ground Power switch off Below 1 Ω

   3. Reconnect the G59 snow mode switch (No. 2 satellite switch set) connector.

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

6. Click here

   CHECK HARNESS AND CONNECTOR (SNOW MODE SWITCH (NO. 2 SATELLITE SWITCH SET) - HYBRID VEHICLE CONTROL ECU ASSEMBLY)

   
   

   1. Disconnect the G59 snow mode switch (No. 2 satellite switch set) connector.

   2. Disconnect the G93 hybrid vehicle control ECU assembly connector.

   3. 

      *a	Front view of wire harness connector (to Snow Mode Switch (No. 2 Satellite Switch Set))
      *b	Front view of wire harness connector (to Hybrid Vehicle Control ECU Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition G59-3 (SNSW) - G93-27 (SNOW) Power switch off Below 1 Ω G59-3 (SNSW) or G93-27 (SNOW) - Body ground Power switch off 10 kΩ or higher

   4. Reconnect the G93 hybrid vehicle control ECU assembly connector.

   5. Reconnect the G59 snow mode switch (No. 2 satellite switch set) connector.

      Result
      Proceed to OK NG

   
   
   • OK

     REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLYClick here

   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR