Inspection Procedure

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. 

NG: Go to step   5 

OK: Go To Next Step 

1. Press "EJECT" and check the operation.

1. Press the CD EJECT switch of the radio receiver assembly for 2 sec. or more to see if the CD is ejected.

Standard: CD is ejected 

HINT:

• If the CD is not ejected, send the vehicle for repair.
• Do not try to draw it out by force.

NG: CHECK AND REPLACE RADIO RECEIVER ASSY 

OK: Go To Next Step 

1. Check that a proper CD is inserted.

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

Standard: Normal music CD. 

HINT:

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

NG: CD FAULTY 

OK: Go To Next Step 

1. Replace the CD with another and recheck.

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

Standard: The operation returns to be normal. 

OK: CD FAULTY 

NG: Go To Next Step 

1. Remove the radio receiver assy with connectors with still connected.
2. Check voltage.
   1. Measure voltage between terminals +B, ACC and GND of radio receiver assy at each conditions, as shown in the chart.
   Fig 1: Inspecting Radio Receiver Assy (+B, ACC, GND)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 2: STANDARD

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check continuity.

1. Check that the continuity exists between terminal GND of radio receiver assy and body ground.

Standard: Continuity exists. 

OK: CHECK AND REPLACE RADIO RECEIVER ASSY 

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR