POWER INTEGRATION SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
2. Click here

   INSPECT AUXILIARY BATTERY VOLTAGE

   
   

   1. Measure the auxiliary battery voltage with the power switch off.

      Standard voltage
      11 to 14 V

      If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding.

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
3. Click here

   CHECK COMMUNICATION FUNCTION OF CXPI COMMUNICATION SYSTEM*

   
   

   1. Using the GTS, check the CXPI communication function to ensure that there are no malfunctions in the communication system.

      Click here

      Result
      Proceed to No DTCs output DTCs output

   
   
   • No DTCs outputClick here
   • DTCs output

     GO TO CXPI COMMUNICATION SYSTEMClick here

4. Click here

   CHECK FOR DTC*

   
   

   1. Check for DTCs and make a note of any codes that are output.

      Click here

   2. Clear the DTCs.

      
      

      1. No. 1 semiconductor power integration ECU

         
         
         1. Body Electrical > Power Integration No.1 > Clear DTCs
         2. 
            
         3. 
            

      2. No. 2 semiconductor power integration ECU (w/ PTC Heater)

         
         
         1. Body Electrical > Power Integration No.2 > Clear DTCs
         2. 
            
         3. 
            

      3. No. 3 semiconductor power integration ECU

         
         
         1. Body Electrical > Power Integration No.3 > Clear DTCs
         2. 
            
         3. 
            

   3. Recheck for DTCs.

      
      

      1. No. 1 semiconductor power integration ECU

         
         
         1. Body Electrical > Power Integration No.1 > Trouble Codes
         2. 
            
         3. 
            

      2. No. 2 semiconductor power integration ECU (w/ PTC Heater)

         
         
         1. Body Electrical > Power Integration No.2 > Trouble Codes
         2. 
            
         3. 
            

      3. No. 3 semiconductor power integration ECU

         
         
         1. Body Electrical > Power Integration No.3 > Trouble Codes
         2. 
            
         3. 
            

      Result
      Proceed to No DTCs output DTCs output

   
   
   • No DTCs outputClick here
   • DTCs output

     GO TO DIAGNOSTIC TROUBLE CODE CHARTClick here

5. Click here

   PROBLEM SYMPTOMS TABLE

   
   

   1. Refer to the Problem Symptoms Table.

      Click here

      Result
      Proceed to Fault is not listed in problem symptoms table Fault is listed in problem symptoms table

   
   
   • Fault is not listed in problem symptoms tableClick here
   • Fault is listed in problem symptoms table

     ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

6. Click here

   OVERALL ANALYSIS AND TROUBLESHOOTING*

   
   

   1. Data List / Active Test

      Click here

   2. Terminals of ECU

      Click here

   3. Problem symptoms table

      Click here

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
7. Click here

   ADJUST, REPAIR OR REPLACE

   Result
   Proceed to NEXT

   
   
   • NEXT

     END