Toyota RAV4 manuals

Toyota Sienna Service Manual: Radio Receiver Communication Error

INSPECTION PROCEDURE

1 IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE

  1. Enter the diagnostic mode

IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE

  1. Press the preset switch "3" to change to "Detailed Information Mode".
  2.  Identify the component shown by the sub-code.

HINT:

2 CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE

  1. Inspect the power source circuit of the component shown by the sub-code.

    If the power source circuit is operating normally, proceed to the next step.

Component Table:

Component

Proceed to

Stereo component amplifier (440) Stereo component amplifier power source circuit
Television display assembly (1B0) Television display assembly power source circuit

3 INSPECT RADIO RECEIVER

INSPECT RADIO RECEIVER

  1. Disconnect the radio receiver connectors.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

*1: 10 Speaker System

4 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - COMPONENT SHOWN BY SUB-CODE)

HINT:

  1.  Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the radio receiver and the component shown by the sub-code.
  1.  Disconnect all connectors between the radio receiver and the component shown by sub-code.
  2. Check for an open or short in the AVC-LAN circuit between the radio receiver and the component shown by the sub-code.

OK: There is no open or short circuit.

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - COMPONENT SHOWN BY SUB-CODE)

5 REPLACE COMPONENT SHOWN BY SUB-CODE

  1. Replace the component shown by the sub-code with a normal one and check if the same problem occurs again.

OK: Same problem does not occur.

END

Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter
DESCRIPTION This circuit is necessary for the ASL (Auto Sound Leveliser) built into the stereo component amplifier. Speed signals are received from the combination meter and used for the ASL. ...

Stereo Component Amplifier Communication Error
INSPECTION PROCEDURE 1 IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE Enter the diagnostic mode. Press the preset switch "3" to change to "Detailed Information Mode" ...

Other materials:

Engine oil pressure switch
ON-VEHICLE INSPECTION 1. INSPECT ENGINE OIL PRESSURE SWITCH ASSEMBLY  Disconnect the connector from the oil pressure switch assembly.  With the switch still installed, measure the resistance between the terminal of the engine oil pressure switch and engine ground. Standard ...

Fuel Pump Control Circuit
DESCRIPTION The FUEL PUMP relay switches the fuel pump speed according to the engine conditions. The fuel pump operates when the ECM receives the starter-operating signal (STA) and crankshaft-rotating signal (NE). The FUEL PUMP relay is turned ON while the engine is idling or operating at l ...

Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE REAR NO. 2 SEAT LEG SIDE GARNISH SUB-ASSEMBLY  Disengage the 9 clips and remove the rear No. 2 seat leg side garnish sub-assembly.  Remove the 9 clips from the rear No. 2 seat leg side garnish sub-assembly. 3. ...

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