Inspection Procedure

1. Check continuity of ECU-IG1, AM1 and P/W (FL) fuses.

   OK: Continuity 

NG: REPLACE FUSE 

OK: GO TO NEXT STEP 

1. Turn the ignition switch OFF.
2. Measure the voltage between terminals CPUB, SIG, BDR and GND.

   Standard voltage 

   POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (BATTERY VOLTAGE)
   
   

   Terminal Name	Condition	Specified Condition
   CPUB	Always	10 to 14 V
   BDR	Always	10 to 14 V
   SIG	Ignition switch ON	10 to 14 V
   GND	Always	Below 1 V

NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

OK: GO TO NEXT STEP 

1. Refer to inspection (see ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE