INTEGRATION RELAY INSPECTION

PROCEDURE

1. INSPECT SEMICONDUCTOR PWR INTEGRATION ECU

   
   
   

   1. IG2 RELAY:

      
      
      1. 

         *a	Component without harness connected (Semiconductor Pwr Integration ECU)

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

         Standard Resistance
         Tester Connection Condition Specified Condition 2B-1 - 2F-4 Battery voltage not applied between terminals 2E-1 and 2D-14 10 kΩ or higher 2B-1 - 2G-3 2B-1 - 2G-4 2B-1 - 2F-4 Battery positive (+) → 2E-1 Battery negative (-) → 2D-14 Below 1 Ω 2B-1 - 2G-3 2B-1 - 2G-4

         If the result is not as specified, replace the semiconductor pwr integration ECU.

   2. EFI-MAIN RELAY:

      
      
      1. 

         *a	Component without harness connected (Semiconductor Pwr Integration ECU)

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

         Standard Resistance
         Tester Connection Condition Specified Condition 2B-1 - 2G-1 Battery voltage not applied between terminals 2G-6 and 2D-14 10 kΩ or higher 2B-1 - 2G-2 2B-1 - 2G-7 2B-1 - 2G-8 2F-2 - 2G-1 2B-1 - 2G-1 Battery positive (+) → 2G-6 Battery negative (-) → 2D-14 Below 1 Ω 2B-1 - 2G-2 2B-1 - 2G-7 2B-1 - 2G-8 2F-2 - 2G-1

         If the result is not as specified, replace the semiconductor pwr integration ECU.

   3. A/F RELAY:

      
      
      1. 

         *a	Component without harness connected (Semiconductor Pwr Integration ECU)

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

         Standard Resistance
         Tester Connection Condition Specified Condition 2B-1 - 2F-1 Battery voltage not applied between terminals 2G-1 and 2D-14 10 kΩ or higher 2B-1 - 2F-1 Battery positive (+) → 2G-1 Battery negative (-) → 2D-14 Below 1 Ω

         If the result is not as specified, replace the semiconductor pwr integration ECU.

   4. H-LP RH-LO RELAY:

      
      
      1. 

         *a	Component without harness connected (Semiconductor Pwr Integration ECU)

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

         Standard Resistance
         Tester Connection Condition Specified Condition 2B-1 - 2E-2 Battery voltage not applied between terminals 2B-1 and 2D-8 10 kΩ or higher

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

         Standard Voltage
         Tester Connection Condition Specified Condition 2E-2 - Battery negative (-) Battery positive (+) → 2B-1 Battery negative (-) → 2D-8 11 to 14 V

         If the result is not as specified, replace the semiconductor pwr integration ECU.

   5. H-LP LH-LO RELAY:

      
      
      1. 

         *a	Component without harness connected (Semiconductor Pwr Integration ECU)

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

         Standard Resistance
         Tester Connection Condition Specified Condition 2B-1 - 2E-3 Battery voltage not applied between terminals 2B-1 and 2D-8 10 kΩ or higher

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

         Standard Voltage
         Tester Connection Condition Specified Condition 2E-3 - Battery negative (-) Battery positive (+) → 2B-1 Battery negative (-) → 2D-8 11 to 14 V

         If the result is not as specified, replace the semiconductor pwr integration ECU.

   6. Semiconductor pwr integration ECU ground:

      
      
      1. 

         *a	Component without harness connected (Semiconductor Pwr Integration ECU)

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

         Standard Resistance
         Tester Connection Condition Specified Condition 2D-14 - 2G-5 Always Below 1 Ω

         If the result is not as specified, replace the semiconductor pwr integration ECU.