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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:

Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
HINT: This DTC relates to the Accelerator Pedal Position (APP) sensor. DESCRIPTION Refer to DTC P2120 (See page ES-343). MONITOR DESCRIPTION The accelerator pedal position sensor is mounted on the accelerator pedal bracket. The accelerator pedal position sensor has 2 sensor elements ...

If the engine will not start
If the engine will not start even though correct starting procedures are being followed (, 228), consider each of the following points: The engine will not start even though the starter motor operates normally. One of the following may be the cause of the problem: There may not be sufficien ...

Removal
HINT:  Use the same procedures for the RH side and LH side.  The procedures listed below are for the LH side. 1. PRECAUTION CAUTION: Be sure to read "PRECAUTION" thoroughly before servicing. 2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait for 90 s ...

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