Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.

ADJUST SOUND QUALITY
1. Adjust the sound quality.
  1. Operate the radio receiver assy to adjust the sound quality.
  Standard: malfunction disappear.
  
  OK: BAD SOUND QUALITY
  
  NG: Go to Next Step
COMPARE IT WITH ANOTHER CAR OF SAME MODEL
1. Compare it with another vehicle of the same model.
  1. Compare with the vehicle of the same type which does not have a trouble to see if there is any difference in the condition of trouble occurrence.
  Standard: No difference found
  
  OK: NORMAL
  
  NG: Go to Next Step
INSPECT STEREO COMPONENT AMPLIFIER ASSY (MUTE)
1. Check that the voltage between terminals at each condition, as shown in Fig 1 .
  Standard:
  
  Fig 1: Stereo Component Amplifier Assy (Mute) Specifications Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. MARK LEVINSON Type:
    
    Fig 2: Identifying Stereo Component Amplifier Assy (Mute) Terminals (Mark Levinson Type)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. 6CD Type:
    
    Fig 3: Identifying Stereo Component Amplifier Assy (Mute) Terminals (6CD Type)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. 1CD Type:
  Fig 4: Identifying Stereo Component Amplifier Assy (Mute) Terminals (1CD Type)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
  
  OK: Go to Next Step
INSPECT RADIO RECEIVER ASSY
1. Check that the voltage between terminals at each condition, as shown in Fig 5 .
  Standard:
  
  Fig 5: Radio Receiver Assy Specifications Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Radio Receiver Assy
  Fig 6: Identifying Radio Receiver Assy Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: CHECK AND REPLACE RADIO RECEIVER ASSY
  
  OK: Go to Next Step
INSPECT STEREO COMPONENT AMPLIFIER ASSY (INPUT SIGNAL)
1. Check that the voltage between terminals at each condition, as shown in Fig 7 .
  Standard:
  
  Fig 7: Stereo Component Amplifier Assy (Input Signal) Specifications Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. MARK LEVINSON Type:
    
    Fig 8: Identifying Stereo Component Amplifier Assy (Input Signal) Terminals (Mark Levinson Type)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. 6CD Type:
    
    Fig 9: Identifying Stereo Component Amplifier Assy (Input Signal) Terminals (6CD Type)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. 1CD Type:
  Fig 10: Identifying Stereo Component Amplifier Assy (Input Signal) Terminals (1CD Type)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
  
  OK: Go to Next Step
INSPECT STEREO COMPONENT AMPLIFIER ASSY (OUTPUT SIGNAL)
1. Check that the voltage between terminals at each condition, as shown in Fig 11 .
  Standard:
  
  Fig 11: Stereo Component Amplifier Assy (Output Signal) Specifications Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. MARK LEVINSON Type:
    
    Fig 12: Identifying Component Amplifier Assy (Output Signal) Terminals (Mark Levinson Type)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. 6CD Type:
    
    Fig 13: Identifying Component Amplifier Assy (Output Signal) Terminals (6CD Type)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. 1CD Type:
  Fig 14: Identifying Component Amplifier Assy (Output Signal) Terminals (1CD Type)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: CHECK AND REPLACE STEREO COMPONENT AMPLIFIER ASSY
  
  OK: Go to Next Step
CHECK SPEAKER (RESISTANCE)
1. Preparation for Check
  1. Disconnect the connector of the speaker.
2. Resistance Check
  1. Check the resistance between the terminals of the speaker.
  NOTE: The speaker should not be removed for checking.
  
  Standard value: 2 - 8Ω
  
  NG: REPLACE SPEAKER
  
  OK: REPAIR OR REPLACE HARNESS OR CONNECTOR