Inspection Procedure

1. Clean up the infrared light emission part.

1. Clean up the infrared light emission part of the stereo component control.
2. Check if the same abnormality occurs again.

Standard: Function return to normal condition. 

OK: IR RECEIVER DIRTY 

NG: Go To Next Step 

1. Check the dry cell battery.

1. Check that the dry cell battery is not used up.

Standard: The dry cell battery is not used up. 

NG: BATTERY EMPTY 

OK: Go To Next Step 

1. Except 6 Speaker (Separate AMP):

   Check that the continuity between terminals at each condition, as shown in the chart.

   Fig 1: Inspecting Harness Or Connector (Radio Receiver Assy - Stereo Component Controller Assy) Except 6 Speaker (Separate Amp)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   STANDARD
   
   

   Terminal	Condition	Specified condition
   TX+ <=> TX+	Constant	Continuity
   TX- <=> TX-	Constant	Continuity

2. 6 Speaker (Built-in AMP):

Check that the continuity between terminals at each condition, as shown in the chart.

Fig 2: Inspecting Harness Or Connector (Radio Receiver Assy - Stereo Component Controller Assy) 6 Speaker (Built In AMP)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go To Next Step 

1. Check that the continuity between terminals at each condition, as shown in the chart.
   Fig 3: Checking Stereo Component Controller Assy (+B, ACC, GND)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   STANDARD
   
   

   Tester	connection	Condition Specified condition
   GND <=> Body ground	Constant	Continuity

2. Check that the voltage between terminals at each condition, as shown in the chart.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: CHECK AND REPLACE RADIO SWITCH AND VOLUME ASSY