How To Proceed With Troubleshooting [09/2014 - ]: Procedure

Result

Result: 

NEXT 

See step  2

• When 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 for problem analysis:

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

Result

Result: 

NEXT 

See step  3

1. Measure the battery voltage with the engine switch off.

   Standard Voltage

   11 to 14 V

   HINT: 

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

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Check that condensation is not likely to occur in the cabin and that the temperature is not high or extremely low in the cabin.

   OK

   Condensation is not likely being produced and the temperature is not high or extremely low.

   HINT: 

   • A humid cabin and a rapid change in temperature may lead to condensation. Condensation in the cabin may cause a short circuit.
   • The audio and visual system may not operate normally when the temperature is -20°C (-4°F) or lower, or 65°C (149°F) or higher.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

SET CABIN TO APPROPRIATE TEMPERATURE 

Result: 

OK 

See step  5

1. Check if the CAN communication system is functioning normally (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] ).

   Result

   Result	Proceed to
   CAN communication system is functioning normally.	A
   CAN communication system is not functioning normally.	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] )

Result: 

A 

See step  6

1. Check for DTCs and note any codes that are output (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] , or refer to DTC CHECK / CLEAR [10/2015 - ] ).
2. Clear the DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] , or refer to DTC CHECK / CLEAR [10/2015 - ] ).
3. Recheck for DTCs by simulating the operation indicated by the DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] , or refer to DTC CHECK / CLEAR [10/2015 - ] ).

   OK

   DTC is not output.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO DIAGNOSTIC TROUBLE CODE CHART 

(Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - 10/2015] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2015 - ] )

Result: 

OK 

See step  7

1. Refer to Problem Symptoms Table (Refer to PROBLEM SYMPTOMS TABLE [09/2014 - ] ).

   Result

   Result	Proceed to
   Fault is not listed in Problem Symptoms Table.	A
   Fault is listed in Problem Symptoms Table.	B

   HINT: 

   If the symptoms do not recur and no DTCs are output, attempt to reproduce the symptoms.

Result: 

B 

ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE 

Result: 

A 

See step  8

1. Terminals of ECU (Refer to TERMINALS OF ECU [09/2014 - 10/2015] , or refer to TERMINALS OF ECU [10/2015 - ] ).
2. Data List / Active Test (Refer to DATA LIST / ACTIVE TEST [09/2014 - ] ).

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  9

1. Adjust, repair or replace as necessary.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  10

1. After clearing DTCs, recheck for DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] , or refer to DTC CHECK / CLEAR [10/2015 - ] ).

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  11

Result

Result: 

NEXT 

END