Toyota Tacoma (2015-2018) Service Manual: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the navigation system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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.gif)
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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:
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
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3. |
INSPECT BATTERY VOLTAGE |
(a) 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.
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4. |
CHECK CABIN |
(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 navigation system may not operate normally when the temperature is -20°C (-4°F) or lower, or 65°C (149°F) or higher.
| NG | .gif) |
SET CABIN TO APPROPRIATE TEMPERATURE |
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5. |
CHECK NAVIGATION SYSTEM NORMAL CONDITION |
(a) Refer to Check System Normal Condition.
Click here .gif)
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Result |
Proceed to |
|---|---|
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Symptom is not normal operation |
A |
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Symptom is normal operation |
B |
| B | |
SYMPTOM IS NORMAL OPERATION |
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6. |
CHECK CAN COMMUNICATION SYSTEM* |
(a) Check if CAN communication system DTCs are output.
Click here
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Result |
Proceed to |
|---|---|
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CAN DTCs are not output. |
A |
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CAN DTCs are output. |
B |
| B | |
GO TO CAN COMMUNICATION SYSTEM |
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7. |
CHECK FOR DTC* |
(a) Refer to DTC Check/Clear.
Click here
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Result |
Proceed to |
|---|---|
|
DTCs are output |
A |
|
DTCs are not output |
B |
HINT:
If the system cannot enter diagnostic mode, inspect the AVC-LAN and all the components that connect to the AVC-LAN for short circuits and repair or replace the problem part.
Click here
| B | |
GO TO STEP 11 |
|
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8. |
DTC CLEAR* |
(a) Refer to DTC Check/Clear.
Click here
HINT:
The present DTCs may not indicate actual malfunctions depending on the vehicle operating conditions.
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9. |
RECHECK FOR DTC* |
(a) Refer to DTC Check/Clear.
Click here
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Result |
Proceed to |
|---|---|
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DTCs are output |
A |
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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.
| B | |
GO TO STEP 11 |
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10. |
DIAGNOSTIC TROUBLE CODE CHART |
(a) Find the output code in Diagnostic Trouble Code Chart.
Click here
| NEXT | |
GO TO STEP 13 |
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11. |
CHECK SD CARD |
(a) Enter the "SD Check" screen. Refer to Check SD Card in Operation Check.
Click here
| NG | |
REPLACE SD CARD |
|
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12. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to 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 |
HINT:
If the symptom does not recur and no DTCs are output, attempt to reproduce the symptoms.
Click here
| B | |
GO TO STEP 13 |
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13. |
PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM |
(a) Refer to Terminals of ECU.
Click here
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14. |
CHECK CIRCUIT |
(a) Adjust, repair or replace as necessary.
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15. |
RECHECK FOR DTC* |
(a) After clearing DTCs, recheck for DTCs.
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16. |
PERFORM CONFIRMATION TEST |
| NEXT | |
END |
System Description
SYSTEM DESCRIPTION
1. NAVIGATION SYSTEM OUTLINE
(a) Vehicle position tracking methods
It is essential that the navigation system correctly tracks the current vehicle
position and displays it on t ...
Operation Check
OPERATION CHECK
1. CHECK NAVIGATION SYSTEM NORMAL CONDITION
(a) If the symptom is applicable to any of the following, it is intended behavior,
and not a malfunction.
Symptom
...
Other materials:
Terminals Of Ecu
TERMINALS OF ECU
CHECK ECM
HINT:
The standard voltage, resistance and waveform between each pair of the ECM terminals
is shown in the table below. The appropriate conditions for checking each pair of
the terminals is also indicated. The result of checks should be compared with the
standar ...
Components
COMPONENTS
ILLUSTRATION
*A
for Type A
*B
for Type B
*C
for Type C
-
-
*1
MILLIMETER WAVE RADAR SENSOR ASSEMBLY
*2
MILLIMETER WAVE RADAR WIRE
...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
(a) Disconnect the 1D and 1F driver side junction block connectors.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
HINT:
Measure the values on the wire harness side with the connectors ...
