SFI SYSTEM, Diagnostic DTC:P2100

DTC Code DTC Name
P2100 Throttle Actuator "A" Control Motor Circuit/Open

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2100 Throttle Actuator "A" Control Motor Circuit/Open

DTC Detection Condition


    Enable Criteria

  • None


    Malfunction Criteria

  • H-bridge drive chip diagnostic


    Diagnostic Mask

  • -


    Monitor

  • Continuous


    Potential failure modes

  • Throttle actuator control motor open circuit

  • Electronic throttle control system

  • Throttle body with motor assembly

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION

The throttle actuator stepper motor operates on 12 volts.

WIRING DIAGRAM

B0045MDE01
*a Throttle Actuator (Built into Throttle Body with Motor Assembly)

CAUTION / NOTICE / HINT

Tech Tips

Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, 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.

PROCEDURE


  1. INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY


    1. Inspect the throttle body with motor assembly.

      Click here

      Tech Tips

      Perform "Inspection After Repair" after replacing the throttle body with motor assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR


    1. Disconnect the B29 throttle body with motor assembly connector.

    2. Disconnect the B142 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B29-1 (M+) - B45-48 (M+) Always Below 1 Ω
      B29-2 (M-) - B45-35 (M-) Always Below 1 Ω
      B29-1 (M+) or B45-48 (M+) - Body ground and other terminals Always 10 kΩ or higher
      B29-2 (M-) or B45-35 (M-) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY


    1. Check for contamination between the throttle valve and housing. If necessary, clean the throttle body with motor assembly. Also, check that the throttle valve moves smoothly.

      Tech Tips


      • Throttle valve is not contaminated with foreign objects and moves smoothly.

      • Perform "Inspection After Repair" after cleaning the throttle body with motor assembly.

        Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    CLEAN THROTTLE BODY WITH MOTOR ASSEMBLY