How To Proceed With Troubleshooting [10/2023 - ]: Procedure

Result

Result: 

NEXT 

See step  2

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

Result: 

NEXT 

See step  3

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

   Refer to DTC CHECK / CLEAR [10/2023 - ]

   Result

   Proceed to
   No DTCs output
   DTCs output

Result: 

DTCs output 

GO TO CXPI COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2023 - ] 

Result: 

No DTCs output 

See step  4

1. Using the GTS, check for Vehicle Control History (RoB).
   1. Semiconductor power integration ECU

      Body Electrical > Power Integration No. 1 > Utility 

      Tester Display
      Vehicle Control History (RoB)

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

      Body Electrical > Power Integration No. 2 > Utility 

      Tester Display
      Vehicle Control History (RoB)

   3. Power distribution box assembly

      Body Electrical > Power Distribution Box > Utility 

      Tester Display
      Vehicle Control History (RoB)

2. If the vehicle control history is output, record it.

   Result

   Result	Proceed to
   Vehicle Control History (RoB) is not output	A
   Vehicle Control History (RoB) is output	B

Result: 

B 

GO TO VEHICLE CONTROL HISTORY (RoB)*. Refer to  VEHICLE CONTROL HISTORY (RoB) [10/2023 - ] 

Result: 

A 

See step  5

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

   Refer to DTC CHECK / CLEAR [10/2023 - ] 

2. Clear the DTCs.
   1. No. 1 semiconductor power integration ECU

      Body Electrical > Power Integration No. 1 > Clear DTCs 

   2. Semiconductor power integration ECU (w/ PTC Heater)

      Body Electrical > Power Integration No. 2 > Clear DTCs 

   3. No. 3 semiconductor power integration ECU

      Body Electrical > Power Integration No. 3 > Clear DTCs 

3. Recheck for DTCs.
   1. No. 1 semiconductor power integration ECU

      Body Electrical > Power Integration No. 1 > Trouble Codes 

   2. Semiconductor power integration ECU (w/ PTC Heater)

      Body Electrical > Power Integration No. 2 > Trouble Codes 

   3. No. 3 semiconductor power integration ECU

      Body Electrical > Power Integration No. 3 > Trouble Codes 

   Result

   Proceed to
   No DTCs output
   DTCs output

Result: 

DTCs output 

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2023 - ]  

Result: 

No DTCs output 

See step  6

1. Refer to the Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [10/2023 - ] 

   Result

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

Result: 

Fault is listed in problem symptoms table 

ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE 

Result: 

Fault is not listed in problem symptoms table 

See step  7

1. Data List / Active Test

   Refer to DATA LIST / ACTIVE TEST [10/2023 - ] 

2. Terminals of ECU

   Refer to TERMINALS OF ECU [10/2023 - ] 

3. Problem symptoms table

   Refer to PROBLEM SYMPTOMS TABLE [10/2023 - ] 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  8

Result

Result: 

NEXT 

END