RM36D0EC _57 Power Source / Network _083091 NETWORKING _0694852 LIN COMMUNICATION SYSTEM(for GTMC Made) Y

NETWORKING  LIN COMMUNICATION SYSTEM(for GTMC Made)  HOW TO PROCEED WITH TROUBLESHOOTING  


CAUTION / NOTICE / HINT

HINT:
·

Use the following procedure to troubleshoot the LIN communication system.

·

*: Use the GTS.



PROCEDURE

1.VEHICLE BROUGHT TO WORKSHOP
Result:
Proceed to
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2.CUSTOMER PROBLEM ANALYSIS
2.CUSTOMER PROBLEM ANALYSIS
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 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:
Proceed to
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3.PRE-CHECK
3.PRE-CHECK
a.

Measure the auxiliary battery voltage with the ignition switch off.

Standard voltage:

11 to 14 V (Ignition switch off)


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


b.

Check the fuses and relays.


c.

Check the connectors and terminals to make sure that there are no abnormalities such as a loose connection or deformation.


Result:
Proceed to
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4.INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
5.INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

Result:
Result Proceed to
LIN DTCs are not output A
LIN DTCs are output B



A

6.OVERALL ANALYSIS AND TROUBLESHOOTING*

B

7.REPAIR OR REPLACE
Result:
Proceed to
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NEXT

8.CONFIRMATION TEST
8.CONFIRMATION TEST
Result:
Proceed to
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NEXT

END