Inspection Procedure

HINT:

Read freeze frame data using the hand-held tester. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

1. INSPECT ECM (FPR VOLTAGE) 
   1. Measure the voltage between the terminals of the E3 and E6 ECM connectors.

      Standard: 

      Fig 1: Specifications Chart

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      Fig 2: Identifying ECM Terminal

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE ECM (See  REPLACEMENT  ) 
   2. OK: Go to next step. 
2. INSPECT RELAY (F/PMP) 
   1. Remove the F/PMP relay from the engine room No.2 relay block (R/B).
   2. Measure the resistance.

      Standard: 

      Fig 3: Specific Condition Chart

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      Fig 4: Checking F/PMP Relay

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE RELAY (F/PMP) 
   2. OK: Go to next step. 
3. CHECK WIRE HARNESS (F/PMP RELAY - ECM) 
   1. Remove the F/PMP relay from the engine room No.2 R/B.
   2. Disconnect the E6 ECM connector.
   3. Measure the resistance between the wire harness side connectors.

      Standard: 

      Fig 5: Specific Condition Chart

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 6: Checking ECM Connector

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
   2. OK: GO TO NEXT STEP. 

   REPLACE ECM (See  REPLACEMENT  )