DTC P2118 Throttle Actuator Control Motor Current Range / Performance: Wiring Diagram

Fig 1: Throttle Actuator Control Motor - Wiring Diagram

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

Read freeze frame data using the intelligent 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 FUSE (ETCS) 
   1. Remove the ETCS fuse from the engine room relay block.
   2. Measure the resistance of the fuse.

   Standard: 

   Below 1 Ω 

   NG : CHECK FOR SHORT IN ALL HARNESSES AND COMPONENTS CONNECTED TO FUSE 

   Fig 2: Removing ETCS Fuse From Engine Room Relay Block

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK : Go to next Step 

2. INSPECT ECM (+BM VOLTAGE) 
   1. Measure the voltage of the ECM connectors.

      standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   +BM (E5-6) - E1 (E6-1)	9 to 14 V

   NG : GO TO STEP   3 

   Fig 3: Identifying ECM Connectors Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK : CHECK FOR INTERMITTENT PROBLEMS 

3. CHECK WIRE HARNESS (ECM - ETCS FUSE, ETCS FUSE - BATTERY) 
   1. Check the wire harness between the ETCS fuse and ECM.
      1. Remove the ETCS fuse from the engine room relay block.
      2. Disconnect the E5 ECM connector.
      3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART
      
      

      Tester Connection	Specified Condition
      ETCS fuse (2) - +BM (E5-6)	Below 1 Ω
      ETCS fuse (2) or +BM (E5-6) - Body ground	10 kΩ or higher

   2. Check the wire harness between the ETCS fuse and positive (+) battery cable.
      1. Remove the ETCS fuse from the engine room relay block.
      2. Disconnect the cable from the positive (+) battery cable.
      3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   Positive battery cable terminal - ETCS fuse (1)	Below 1 Ω
   Positive battery cable terminal or ETCS fuse (1) - Body ground	10 kΩ or higher

   NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

   Fig 4: Removing ETCS Fuse From Engine Room Relay Block

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK : REPLACE ECM