ID Code Box Power Source Circuit: Procedure

1. Disconnect the D29 ID code box connector.
   Fig 1: Identifying D29 ID Code Box Connector Terminals

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2. Measure the voltage according to the value(s) in the table below.

   Voltage

   Tester Connection	Condition	Specified Condition
   D29-1 (MPXB) - Body ground	Always	10 to 14 V

3. Measure the resistance according to the value(s) in the table below.

   Resistance

   Tester Connection	Condition	Specified Condition
   D29-8 (GND) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

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