Inspection Procedure

1. Disconnect the audio and rear A/C control switch connector A35.
2. Measure the resistance according to the value (s) in the table below.
   TESTER CONNECTION CONDITION CHART
   
   

   Tester connection	Condition	Specified condition
   GND - Body ground	Always	Below 1 Ω

3. Measure the voltage according to the value (s) in the table below.
   TESTER CONNECTION CONDITION CHART
   
   

   Tester connection	Condition	Specified condition
   +B - GND	Always	10 to 14V
   ACC - GND	Ignition SW ACC	10 to 14V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE   or  DIAGNOSTIC TROUBLE CODE CHART  

Fig 1: Inspecting Audio And Rear A/C Control Switch (+B, ACC, Gnd)

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