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 1B-1 - 1F-4 Battery voltage is not applied between terminals 1E-1 and 1D-14 10 kΩ or higher 1B-1 - 1G-3 1B-1 - 1G-4 1B-1 - 1F-4 Battery positive (+) → 1E-1 Battery negative (-) → 1D-14 Below 1 Ω 1B-1 - 1G-3 1B-1 - 1G-4

         If the resistance 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 1B-1 - 1G-1 Battery voltage is not applied between terminals 1G-6 and 1D-14 10 kΩ or higher 1B-1 - 1G-2 1B-1 - 1G-7 1B-1 - 1G-8 1F-2 - 1G-1 1B-1 - 1G-1 Battery positive (+) → 1G-6 Battery negative (-) → 1D-14 Below 1 Ω 1B-1 - 1G-2 1B-1 - 1G-7 1B-1 - 1G-8 1F-2 - 1G-1

         If the resistance 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 1B-1 - 1F-1 Battery voltage is not applied between terminals 1G-1 and 1D-14 10 kΩ or higher 1B-1 - 1F-1 Battery positive (+) → 1G-1 Battery negative (-) → 1D-14 Below 1 Ω

         If the resistance 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 1B-1 - 1E-2 Battery voltage is not applied between terminals 1B-1 and 1D-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 1E-2 - Battery negative (-) Battery positive (+) → 1B-1 Battery negative (-) → 1D-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 1B-1 - 1E-3 Battery voltage is not applied between terminals 1B-1 and 1D-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 1E-3 - Battery negative (-) Battery positive (+) → 1B-1 Battery negative (-) → 1D-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 1D-14 - 1G-5 Always Below 1 Ω

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