Inspection Procedure

1. Disconnect the instrument panel J/B (IA, ID) connectors.
2. Measure the voltage according to the value(s) in the table below.
   VOLTAGE SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   IA-1 (BATB) - Body ground	Always	10 to 14 V
   ID-10 (BECU) - Body ground	Always	10 to 14 V
   ID-16 (ALTB) - Body ground	Always	10 to 14 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (BATB, BECU OR ALTB CIRCUIT) 

Fig 1: Disconnecting Instrument Panel J/B (IA, ID) Connectors

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: GO TO NEXT STEP 

1. Disconnect the instrument panel J/B (IF, IM) connectors.
   Fig 2: Disconnecting Instrument Panel J/B (IF, IM) Connectors

   Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
2. Measure the resistance according to the value(s) in the table below.
   RESISTANCE SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   IF-10 (GND1) - Body ground	Always	Below 1
   IM-9 (GND2) - Body ground	Always	Below 1

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT) 

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