CELLULAR COMMUNICATION ETC SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

1.VEHICLE BROUGHT TO WORKSHOP

Result:

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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:

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3.INSPECT AUXILIARY BATTERY VOLTAGE

a.

Measure the auxiliary battery voltage with the ignition switch off.

Standard voltage:: 11 to 14 V

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

Result:

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4.PROBLEM SYMPTOMS TABLE

a.

Refer to Problem Symptoms Table.

Click hereAudio / Visual / Telematics>CELLULAR COMMUNICATION>ETC SYSTEM>PROBLEM SYMPTOMS TABLE202201,999999,_56,_115646,_0512191,RM1000000020HH4,

Result:

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

A

5.OVERALL ANALYSIS AND TROUBLESHOOTING

B

6.ADJUST, REPAIR OR REPLACE

5.OVERALL ANALYSIS AND TROUBLESHOOTING

a.

Terminals of ECU.

Click hereAudio / Visual / Telematics>CELLULAR COMMUNICATION>ETC SYSTEM>TERMINALS OF ECU202201,999999,_56,_115646,_0512191,RM1000000020HH5,

Result:

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6.ADJUST, REPAIR OR REPLACE

Result:

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7.CONFIRMATION TEST

Result:

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CELLULAR COMMUNICATION ETC SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE