Inspection Procedure

1. Check that a proper CD is inserted.
   1. Make sure that the CD is normal audio CD, and that there is no deformation, flaw, stain, burr and other defects on the CD.

   Standard: Normal Audio CD 

Reference:

• Translucent or different-shaped CD cannot be played.
• CD-ROM for personal computers (with music recorded in) and recorded CD-R, CD-R/W may not be played.
• Playing an 8-cm CD does not require an adapter.

1. NG: CD Faulty 
2. OK: Go To Next Step 

1. Check that a proper CD is inserted.
   1. Check whether or not the CD is inserted upside down.

   Standard: Not Upside Down 

1. NG: Set Disc Correctly 
2. OK: Go To Next Step 

1. Replace the CD with another and recheck.
   1. Replace the faulty CD with the normal one to see if the same trouble occurs again.

   Standard: Malfunction Disappear 

1. OK: CD Faulty 
2. NG: Go To Next Step 

1. Check if the radio auto-search function properly.
   1. Perform the auto-research of the radio and check that the operation is normal.

   Standard: Malfunction Disappear 

1. OK: Replace Radio Receiver Assembly 
2. NG: Go To Next Step 

1. Remove the radio receiver assembly with connectors with still connected.
2. Check voltage.
   1. Measure voltage between terminals +B, ACC and GND of radio receiver assembly at each conditions, as shown in Fig 2.
   Fig 1: Inspecting Radio Receiver Assembly Terminals
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard: 

   Fig 2: Terminal Voltage Specifications

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check continuity.
   1. Check that the continuity exists between terminal GND of radio receiver assembly and body ground.

   Standard: Continuity Exists 

1. OK: Replace Radio Receiver Assembly 
2. NG: Repair Or Replace Harness Or Connector