How To Proceed With Troubleshooting [08/2015 - 08/2019]: 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 in 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.

   Standard voltage

   11 to 14 V

   HINT: 

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

   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 CAN communication system DTCs are output (Refer to DIAGNOSIS SYSTEM [08/2015 - 08/2019] ).

   Result

   Result	Proceed to
   CAN DTCs are not output.	A
   CAN DTCs are output.	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] )

Result: 

A 

See step  6

1. Refer to DTC Check/Clear (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).

   Result

   Result	Proceed to
   DTCs are output.	A
   DTCs are not output.	B

Result: 

B 

See step  10

Result: 

A 

See step  7

1. Refer to DTC Check/Clear (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).

   HINT: 

   The present DTCs may not indicate actual malfunctions depending on the vehicle operating conditions.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  8

1. Refer to DTC Check/Clear (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).

   Result

   Result	Proceed to
   DTCs are output.	A
   DTCs are not output.	B

   HINT: 

   • Even if the malfunction symptom is not confirmed, check for DTCs. This is because the system stores history DTCs.
   • If more information is needed, perform a recheck using the "System Check Mode" screen after rechecking for DTCs using the Techstream.
   • Check the DTCs and inspect the area that the code indicates.

Result: 

B 

See step  10

Result: 

A 

See step  9

1. Find the output code in Diagnostic Trouble Code Chart (Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2015 - 08/2019] ).

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  12

1. Refer to the Problem Symptoms Table (Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2019] ).

   Result

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

   HINT: 

   If the symptom does not recur and no DTCs are output, attempt to reproduce the symptoms (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] ).

Result: 

B 

See step  12

Result: 

A 

See step  11

1. Refer to Terminals of ECU (Refer to TERMINALS OF ECU [08/2015 - 08/2019] ).

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  12

1. Adjust, repair or replace as necessary.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  13

1. After clearing DTCs, recheck for DTCs.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  14

Result

Result: 

NEXT 

END