Toyota RAV4 manuals

Toyota Sienna Service Manual: How to proceed with troubleshooting

Toyota Sienna Service Manual / Navigation / Navigation system / How to proceed with troubleshooting

1 VEHICLE BROUGHT INTO A WORKSHOP

2 DIAGNOSTIC QUESTIONING AND SYMPTOM CONFIRMATION

  1. Ask the customer about symptoms and confirm malfunctions.

3 CONFIRM THE SYSTEM NORMAL CONDITION

4 CHECK DTC

HINT: If the system cannot enter the diagnosis mode, inspect each AVC-LAN communication signal and repair or replace problem parts.

5 DTC CLEAR

  1. Clear the DTCs and finish the diagnostic mode.

HINT: The currently output DTCs may not indicate actual malfunctions depending on the vehicle conditions.

6 RECHECK DTC

HINT:

7 DIAGNOSTIC TROUBLE CODE CHART

  1. Find the output code on the diagnostic trouble code chart.

8 PROBLEM SYMPTOMS TABLE

  1. Find the applicable symptom code in the problem symptoms table.

HINT: If the symptom does not recur and no code is output, perform the symptom reproduction method

9 CHECK THE ECU TERMINAL ARRANGEMENT BASED ON THE MALFUNCTION SYMPTOM

10 CHECK THE CIRCUIT

  1. Adjust, repair, or replace as necessary.

11 RECHECK THE DIAGNOSTIC TROUBLE CODE

HINT: After deleting the DTCs, recheck for diagnostic trouble codes.

12 PERFORM CONFIRMATION TEST

END

System description
1. Radio and navigation assembly outline  Conventionally, 2 separate devices, a "radio and display" and a "navigation ECU" are used. This model has adopted a new type, ...

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1. Radio Description Radio frequency band  Radio broadcasts use the radio frequency bands shown in the table below Service area The service areas of AM and FM broa ...

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