How To Proceed With Troubleshooting

HINT: 

• Use these procedures to troubleshoot the push-button start function.
• Techstream should be used in steps  4,  5 and  8.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CUSTOMER PROBLEM ANALYSIS CHECK 

   HINT: 

   • In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
   • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
   • The following 5 items are important points in the problem analysis:

     What	Vehicle model, system name
     When	Date, time, occurrence frequency
     Where	Road conditions
     Under what conditions?	Running conditions, driving conditions, weather conditions
     How did it happen?	Problem symptoms

   NEXT: Go to next step 

3. INSPECT BATTERY VOLTAGE 

   Standard Voltage

   11 to 14 V

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

   NEXT: Go to next step 

4. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN) 
   1. Use Techstream to check if the Multiplex Communication System (MPX) is functioning normally. Refer to DTC CHECK/CLEAR .

      Result

      Result	Proceed to
      MPX DTC is not output	A
      MPX DTC is output	B

      B → GO TO MULTIPLEX COMMUNICATION SYSTEM 

      A: Go to next step 

5. CHECK FOR DTC 
   1. Check for DTC and note any codes that are output. Refer to DTC CHECK/CLEAR .
   2. Delete DTC.
   3. Recheck DTC.

      Result

      Result	Proceed to
      DTC does not reoccur	A
      DTC reoccurs	B

      B → GO TO DIAGNOSTIC TROUBLE CODE CHART 

      A: Go to next step 

6. INSPECT BASIC OPERATION 
   1. Turn the engine switch on (START) and check that the engine starts normally. Make sure the brake pedal is depressed and the shift position is in P at this time (A/T).

      Make sure that the clutch pedal is depressed (M/T).

   2. Check that the engine switch mode can be changed by pushing the engine switch.

      HINT: 

      Without depressing the brake pedal (A/T) or clutch pedal (M/T), push the engine switch repeatedly. Engine switch mode should turn from off to on (ACC) to on (IG) and back to off.

      With the brake pedal (A/T) or clutch pedal (M/T) depressed, push the engine switch repeatedly. Engine switch mode should turn to ENGINE START from any status.

      OK

      Engine can start normally.

      NEXT: Go to next step 

7. PROBLEM SYMPTOMS TABLE 

   Result

   Result	Proceed to
   Fault is not listed in the problem symptoms table	A
   Fault is listed in the problem symptoms table	B

   B → Go to step   9 

   A: Go to next step 

8. OVERALL ANALYSIS AND TROUBLESHOOTING 
   1. Refer to TERMINALS OF ECU 
   2. Refer to DATA LIST/ACTIVE TEST 

      NEXT: Go to next step 

9. REPAIR OR REPLACE 

   NEXT: Go to next step 

10. CONFIRMATION TEST 

    NEXT → END