Inspection Procedure

HINT:

This procedure must be performed according to the PROBLEM SYMPTOMS TABLE.

1. CHECK HARNESS AND CONNECTOR (COMBINATION METER - TIRE PRESSURE WARNING ECU) 
   1. Disconnect the F1 combination meter connector.
      Fig 1: Identifying F1 Combination Meter Connector Terminal

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   2. Disconnect the E60 tire pressure warning ECU connector.
   3. Measure the resistance according to the value(s) in the table below.
      Fig 2: Identifying E60 Tire Pressure Warning ECU Connector Terminals

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      Standard resistance 

      RESISTANCE SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      F1-7 (TIRE) - E60-5 (IND)	Below 1 Ω
      F1-7 (TIRE) - Body ground	10 kΩ or higher

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to next step 

2. INSPECT COMBINATION METER 
   1. Disconnect the connector from the tire pressure warning ECU.
   2. Turn the ignition switch on (IG), check the condition of the tire pressure warning light illumination.

      Result 

      RESULT CHART
      
      

      Condition	Proceed to
      Illuminates	A
      Does not illuminate	B

      Fig 3: Identifying Tire Pressure Warning ECU Connector

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   B : REPLACE COMBINATION METER  (See REMOVAL )

   A : REPLACE TIRE PRESSURE WARNING ECU (See  REMOVAL   )