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 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 NAVIGATION RECEIVER ASSY 
2. NG: Go to Next Step 

Fig 1: Disconnecting Navigation Receiver Assy Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the navigation receiver assy and disconnect the connector.
2. Check voltage.
   1. Measure voltage between terminals B, ACC and E of navigation receiver assy at each conditions, as shown in the chart.

   Standard: 

   NAVIGATION RECEIVER ASSY CONNECTOR TERMINALS CONDITION AND VOLTAGE
   
   

   Terminal	Condition	Voltage (V)
   B <--> E	Constant	10-14
   ACC <--> E	Turn Ignition Switch ACC	10 - 14

3. Check continuity.
   1. Check that the continuity exists between terminal E of navigation receiver assy and body ground.

   Standard: Continuity exists. 

1. NG: CHECK AND REPLACE REPAIR OR REPLACE HARNESS OR CONNECTOR 
2. OK: REPAIR OR REPLACE NAVIGATION RECEIVER ASSY