Dtc P2102 Throttle Actuator Control Motor Circuit Low

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

SYSTEM DESCRIPTION

FAIL-SAFE

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT THROTTLE BODY (RESISTANCE OF THROTTLE CONTROL MOTOR)

CHECK HARNESS AND CONNECTOR (THROTTLE CONTROL MOTOR - ECM)

INSPECT THROTTLE BODY (VISUALLY CHECK THROTTLE VALVE)

INSPECT THROTTLE VALVE

DTC P2102 Throttle Actuator Control Motor Circuit Low

DTC P2103 Throttle Actuator Control Motor Circuit High


SYSTEM DESCRIPTION

The throttle actuator is operated by the ECM and opens and closes the throttle valve using the gears.
The opening angle of the throttle valve is detected by the Throttle Position (TP) sensor, which is mounted on the throttle body. The TP 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 ETCS (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 0.5 A or less
  1. Open in throttle actuator circuit
  2. Throttle actuator
  3. ECM
P2103
Either of the following conditions is met:
  1. Hybrid IC diagnosis signal fails
  2. Hybrid IC current limiter port fails
  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, as well as other DTCs relating to ETCS (Electronic Throttle Control System) malfunctions, is set, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator off, and the throttle valve is returned to a 6° 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 opening angle, to allow the vehicle to continue running at a minimal speed. If the accelerator pedal is depressed gently, the vehicle can be driven slowly.
Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off.

WIRING DIAGRAM


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


INSPECTION PROCEDURE

HINT:
  1. Read freeze frame data using an 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 (CAMRY_ACV40 RM000000PDS01FX.html).
  1. The throttle actuator current and the throttle actuator duty ratio can be read using the intelligent tester. However, the ECM shuts off the throttle actuator current when the ETCS malfunctions.
1.INSPECT THROTTLE BODY (RESISTANCE OF THROTTLE CONTROL MOTOR)


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

  1. Disconnect the C5 throttle body connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    M+ (C5-2) - M- (C5-1)
    		20°C (68°F)
    		0.3 to 100 Ω

  1. Reconnect the throttle body connector.



NG
REPLACE THROTTLE BODY (CAMRY_ACV40 RM0000022NL00OX.html)
OK


2.CHECK HARNESS AND CONNECTOR (THROTTLE CONTROL MOTOR - ECM)


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

  1. Disconnect the C5 throttle body connector.

  1. Disconnect the C58 (RHD) or C55 (LHD) ECM connector.

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

    Standard resistance (Check for open):
    RHD:
    Tester Connection
    		Specified Condition
    M+ (C5-2) - M+ (C58-19)
    		Below 1 Ω
    M- (C5-1) - M- (C58-18)
    		Below 1 Ω
    LHD:
    Tester Connection
    		Specified Condition
    M+ (C5-2) - M+ (C55-19)
    		Below 1 Ω
    M- (C5-1) - M- (C55-18)
    		Below 1 Ω

    Standard resistance (Check for short):
    RHD:
    Tester Connection
    		Specified Condition
    M+ (C5-2) or M+ (C58-19) - Body ground
    		10 kΩ or higher
    M- (C5-1) or M- (C58-18) - Body ground
    		10 kΩ or higher
    LHD:
    Tester Connection
    		Specified Condition
    M+ (C5-2) or M+ (C55-19) - Body ground
    		10 kΩ or higher
    M- (C5-1) or M- (C55-18) - Body ground
    		10 kΩ or higher

  1. Reconnect the throttle body connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT THROTTLE BODY (VISUALLY CHECK THROTTLE VALVE)

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



NG
REMOVE FOREIGN OBJECT AND CLEAN THROTTLE BODY
OK


4.INSPECT THROTTLE VALVE

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



NG
REPLACE THROTTLE BODY (CAMRY_ACV40 RM0000022NL00OX.html)
OK

REPLACE ECM (CAMRY_ACV40 RM0000022NT00VX.html)