Dtc P2102 Throttle Actuator Control Motor Circuit Low

Engine. Camry. Acv40 Gsv40
2Az-Fe Engine Control System. Camry. Acv40 Gsv40

DESCRIPTION

FAIL-SAFE

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR)

CHECK HARNESS AND CONNECTOR (THROTTLE WITH MOTOR BODY ASSEMBLY - ECM)

INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY

INSPECT THROTTLE VALVE

DTC P2102 Throttle Actuator Control Motor Circuit Low

DTC P2103 Throttle Actuator Control Motor Circuit High


DESCRIPTION

The throttle actuator is operated by the ECM and opens and closes the throttle valve using an electric motor and gears.
The opening angle of the throttle valve is detected by the throttle position sensor, which is mounted on the throttle with motor body assembly. The throttle position sensor provides feedback to the ECM. This feedback allows the ECM to appropriately control the throttle actuator and monitor the throttle opening angle as the ECM responds to driver inputs.

HINT:
This electronic throttle control system does not use a throttle cable.

DTC No.
DTC Detection Condition
Trouble Area
P2102
Conditions (a) and (b) continue for 2.0 seconds (1 trip detection logic):
(a) Throttle actuator duty ratio 80% or more
(b) Throttle actuator current less than 0.5 A
  1. Open in throttle actuator circuit
  2. Throttle actuator
  3. ECM
P2103
Either of the following conditions is met (1 trip detection logic):
  1. Hybrid IC diagnosis signal failure
  2. Hybrid IC current limiter port failure
  1. Short in throttle actuator circuit
  2. Throttle actuator
  3. Throttle valve
  4. Throttle body assembly
  5. ECM

FAIL-SAFE

When either of these DTCs, or other DTCs relating to ETCS (Electronic Throttle Control System) malfunctions are stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator and the throttle valve is returned to a 6.5° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal position to allow the vehicle to continue at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.
The ECM continues operating in fail-safe mode until a pass condition is detected, and the ignition switch is then turned off.

WIRING DIAGRAM


Camry. Acv40 Gsv40.2Az-Fe Engine Control System.Sfi System. Dtc P2102 Throttle Actuator Control Motor Circuit Low


INSPECTION PROCEDURE

HINT:
  1. Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
  2. The throttle actuator current (Throttle Motor Current) and the throttle actuator duty ratio (Throttle Motor Duty (Open) / Throttle Motor Duty (Close)) can be read using the intelligent tester. However, the ECM shuts off the throttle actuator current when the electronic throttle control system malfunctions.
1.INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR)

  1. Inspect the throttle with motor body assembly (CAMRY_ACV40 RM0000012NC007X_01_0001.html).



NG
REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY (CAMRY_ACV40 RM0000017UD03XX.html)
OK


2.CHECK HARNESS AND CONNECTOR (THROTTLE WITH MOTOR BODY ASSEMBLY - ECM)

  1. Disconnect the throttle with motor body assembly connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Open):

    Tester Connection
    		Condition
    		Specified Condition
    C5-2 (M+) - C24-42 (M+)
    		Always
    		Below 1 Ω
    C5-1 (M-) - C24-41 (M-)
    		Always
    		Below 1 Ω

    Standard Resistance (Check for Short):

    Tester Connection
    		Condition
    		Specified Condition
    C5-2 (M+) or C24-42 (M+) - Body ground
    		Always
    		10 kΩ or higher
    C5-1 (M-) or C24-41 (M-) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the ECM connector.

  1. Reconnect the throttle with motor body assembly connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE WITH MOTOR BODY ASSEMBLY - ECM)
OK


3.INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY

  1. Check for foreign objects between the throttle valve and the housing.

    OK:
    No foreign objects between throttle valve and housing.


NG
REMOVE FOREIGN OBJECT AND CLEAN THROTTLE BODY ASSEMBLY
OK


4.INSPECT THROTTLE VALVE

  1. Check if the throttle valve opens and closes smoothly.

    OK:
    Throttle valve opens and closes smoothly.


NG
REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY (CAMRY_ACV40 RM0000017UD03XX.html)
OK

REPLACE ECM (CAMRY_ACV40 RM0000017UO02YX.html)