Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Управления Двигателем 2Zr-Fe. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR)
CHECK HARNESS AND CONNECTOR (THROTTLE ACTUATOR - ECM)
REPLACE THROTTLE BODY ASSEMBLY
CHECK WHETHER DTC OUTPUT RECURS (THROTTLE ACTUATOR DTC)
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 gears.The opening angle of the throttle valve is detected by the throttle position sensor, which is mounted on the throttle 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.
- УКАЗАНИЕ:
- 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 is 80% or more (b) Throttle actuator current is 0.5 A or less |
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| P2103 | Either of following conditions is met (1-trip detection logic):
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FAIL-SAFE
When either of these DTCs, or other DTCs relating to electronic throttle control system malfunctions, are 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 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
INSPECTION PROCEDURE
- УКАЗАНИЕ:
- 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 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.
- The throttle actuator current (Throttle Motor Current) and the throttle actuator duty ratio (Throttle Motor Open Duty / Throttle Motor Close Duty) 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 BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) |
Disconnect the throttle body assembly connector.
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Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Condition Specified Condition 2 (M+) - 1 (M-) 20°C (68°F) 0.3 to 100 Ω
Reconnect the throttle body assembly connector.
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| OK | |
| 2.CHECK HARNESS AND CONNECTOR (THROTTLE ACTUATOR - ECM) |
Disconnect the throttle body assembly connector.
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Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for open):
Tester Connection Condition Specified Condition B25-2 (M+) - B31-42 (M+) Always Below 1 Ω B25-1 (M-) - B31-41 (M-) Always Below 1 Ω
- Standard resistance (Check for short):
Tester Connection Condition Specified Condition B25-2 (M+) or B31-42 (M+) - Body ground Always 10 kΩ or higher B25-1 (M-) or B31-41 (M-) - Body ground Always 10 kΩ or higher
Reconnect the throttle body assembly connector.
Reconnect the ECM connector.
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| OK | |
| 3.REPLACE THROTTLE BODY ASSEMBLY |
Replace throttle body assembly (See page Нажмите здесь).
| NEXT | |
| 4.CHECK WHETHER DTC OUTPUT RECURS (THROTTLE ACTUATOR DTC) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch on (IG) and turn the tester on.
Clear the DTCs (See page Нажмите здесь).
Start the engine.
Drive the vehicle several minutes.
Select the following menu items: Powertrain / Engine and ECT / DTC.
Read the DTCs.
- Result:
Result Proceed to DTC P2102 or P2103 is output A DTC is not output B
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| A | ||
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