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Toyota Sienna Service Manual: How to proceed with troubleshooting

Toyota Sienna Service Manual / Audio / visual / Audio and visual system / How to proceed with troubleshooting

1 VEHICLE BROUGHT TO WORKSHOP

2 INSPECT BATTERY VOLTAGE

Standard voltage: 11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

3 BASIC INSPECTION

  1. Turn the ignition switch ON.
  2.  Check whether or not the radio receiver turns on.

Result

Result

4 CHECK FOR DTC

  1. Check for DTCs and note any codes that are output.
  2.  Delete the DTCs.
  3.  Recheck for DTCs by simulating the operation indicated by the DTCs.

HINT:

Result

Result

5 DIAGNOSTIC TROUBLE CODE CHART

Find the output code on the diagnostic trouble code chart

6 PROBLEM SYMPTOMS TABLE

Refer to the problem symptoms table

Result

Result

7 OVERALL ANALYSIS AND TROUBLESHOOTING

  1. Terminals of ECU

8 ADJUST, REPAIR OR REPLACE

9 CONFIRMATION TEST

END

System diagram
1. DISC PLAYER OUTLINE  A CD player uses a laser pickup to read digital signals recorded on CDs. By converting the digital signals to analog, music and other content can be played. C ...

Identification of noise source
1. Radio Description  Radio frequency band  Radio broadcasts use the radio frequency bands shown in the table below. Service area  The service areas of A ...

Other materials:

Problem symptoms table
HINT:  Use the table below to help determine the cause of the problem symptom. The likely causes of the problem are indicated in descending order. Check each suspected area in order. Repair or replace faulty parts or perform adjustments as necessary.  Inspect the fuse and rel ...

Terminals of ECU
1. CLEARANCE WARNING ECU *1: with Front Clearance Sonar 2. AIR CONDITIONER AMPLIFIER ASSEMBLY *1: with Front Clearance Sonar *2: Manual A/C *3: Auto A/C  Reference: waveform 1 HINT:  Terminal: CBZ - E, BBZ - E, Z- - Body ground  Gauge set: 2 ...

Auto Up / Down Function does not Operate
DESCRIPTION If the AUTO UP/DOWN function does not operate, any of the following troubles may be the cause:  When the PWR fuse or the power window relay (Marking: PWR) is replaced with new ones, or when the battery terminal and the connector of the power window master switch are d ...

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