CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the audio and visual system. PROCEDURE
| 1. |
VEHICLE BROUGHT TO WORKSHOP |
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| 2. |
CUSTOMER PROBLEM ANALYSIS |
- 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:
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What |
Vehicle model, system name |
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When |
Date, time, occurrence frequency |
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Where |
Road conditions |
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Under what conditions? |
Driving conditions, weather conditions |
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How did it happen? |
Problem symptoms |
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| 3. |
INSPECT BATTERY VOLTAGE | (a) Measure the battery voltage.
Standard Voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery.
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(a)
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 less, or 65°C (149°F) or higher.
| NG |
 | SET CABIN TO APPROPRIATE TEMPERATURE |
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OK | |
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(a) Check for DTCs and note any codes that are output.
Click here  (b) Clear the DTCs.
(c) Recheck for DTCs by simulating the operation indicated by the DTCs.
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Result | Proceed to | |
DTC is output again | A | |
DTC is not output | B |
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A | |
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| 6. |
PROBLEM SYMPTOMS TABLE | (a) Refer to the Problem Symptoms Table.
Click here
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Result | Proceed to | |
Fault is not listed in Problem Symptoms Table |
A | | Fault is listed in Problem Symptoms Table |
B |
| B |
| ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE |
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A | |
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| 7. |
PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM |
(a) Terminals of ECU Click here
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| 8. |
ADJUST, REPAIR OR REPLACE |
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| 9. |
RECHECK FOR DIAGNOSTIC TROUBLE CODE | HINT:
After clearing DTCs, recheck for DTCs. Click here
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