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. CHECK ECM (FPR VOLTAGE) 
   1. Measure the voltage of the ECM connectors.

      Standard: 

      RESISTANCE SPECIFICATIONS
      
      

      Tester Connection	Condition	Specified condition
      E6-15 (FPR) - E3-7 (E1)	STA signal ON	9 to 14 V
      E6-15 (FPR) - E3-7 (E1)	STA signal OFF	0 to 3 V

      Fig 1: Identifying ECM Connector Terminals

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

      Standard: 

      RESISTANCE SPECIFICATIONS
      
      

      Tester Connection	Specified Condition
      2 - 4	Below 1 ohms
      2 - 4	10 k ohms or more (when battery voltage is applied to terminals 1 and 3)

      Fig 2: Identifying Relay (Marking F/PMP)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE RELAY 
   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 of the wire harness side connectors.

      Standard: 

      RESISTANCE SPECIFICATIONS
      
      

      Tester Connection	Specified Condition
      R/B F/PMP relay terminal 1 - E6-15 (FPR)	Below 1 ohms
      R/B F/PMP relay terminal 1 or E6-15 (FPR) - Body Ground	10 k ohms or higher

      Fig 3: Identifying E6 ECM Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
   2. OK: REPLACE ECM (See  REPLACEMENT  )