How To Proceed With Troubleshooting [08/2014 - ]: Procedure

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See step  2

• 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 problem analysis:

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See step  3

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 to the next step.

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   Proceed to
   NEXT

Result:  1

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See step  4

1. Using the Techstream, inspect the LIN communication function to ensure there are no malfunctions in the communication system (See article. Refer to DTC CHECK / CLEAR [08/2014 - ] ).

   Result

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

Result:  2

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART 

(See article. Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2014 - ] )

Result:  1

A 

See step  5

1. Refer to Problem Symptoms Table (See article. Refer to PROBLEM SYMPTOMS TABLE [08/2014 - ] ).

   Result

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

Result:  2

B 

See step  7

Result:  1

A 

See step  6

1. Terminals of ECU (See article. Refer to TERMINALS OF ECU [08/2014 - ] ).
2. Data List / Active Test (See article. Refer to DATA LIST / ACTIVE TEST [08/2014 - ] ).

   Result

   Proceed to
   NEXT

Result:  1

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See step  7

Result

Result:  1

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See step  8

Result

Result:  1

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