DESCRIPTION
Refer to DTC P012011.
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DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
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P022011 | Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Ground | The output voltage of VTA2 is less than 2.05 V for 2 seconds or more (1 trip detection logic). |
| Comes on | DTC stored | SAE Code: P0222 |
MONITOR DESCRIPTION
The ECM uses the throttle position sensor to monitor the throttle valve opening angle. If the VTA2 terminal voltage is less than the threshold, the ECM will illuminate the MIL and store this DTC.
MONITOR STRATEGY
Related DTCs | P0222: Throttle position sensor 2 range check (low voltage) |
Required Sensors/Components (Main) | Throttle position sensor |
Required Sensors/Components (Related) | - |
Frequency of Operation | Continuous |
Duration | 2 seconds |
MIL Operation | Immediate |
Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored | None |
Both of the following conditions are met | - |
Auxiliary battery voltage | 8 V or higher |
Power switch | On (IG) |
TYPICAL MALFUNCTION THRESHOLDS
VTA2 voltage | Less than 2.05 V |
CONFIRMATION DRIVING PATTERN
HINT:
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HINT:
During charge control, the engine speed is set at idle. Therefore, the engine speed will not increase when the accelerator pedal is depressed. In this case, perform step [B] after charge control has completed.
HINT:
Techstream Display | Description |
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NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
FAIL-SAFE
When this DTC is 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 7.5° throttle valve opening 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 engine torque request signal sent from the hybrid vehicle control ECU assembly, to allow the vehicle to continue being driven at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.
Fail-safe mode continues until a pass condition is detected, and the power switch is turned off.
WIRING DIAGRAM
Refer to DTC P012011.
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CAUTION / NOTICE / HINT
NOTICE:
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(Select Powertrain in Health Check and then check the time stamp data.)
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HINT:
Read Freeze Frame Data using the Techstream. 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.
PROCEDURE
1. | READ VALUE USING TECHSTREAM (THROTTLE POSITION SENSOR NO.2 VOLTAGE) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / Throttle Position Sensor No.2 Voltage.
Powertrain > Engine > Data List Tester Display |
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Throttle Position Sensor No.2 Voltage |
(e) Read the values displayed on the Techstream.
(f) Disconnect the throttle body with motor assembly connector.
(g) Compare the value of the Data List item Throttle Position Sensor No.2 Voltage after disconnecting the throttle body with motor assembly connector to the value when the connector was connected.
Result | Proceed to |
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Changes from less than 2.05 V to higher than 4.75 V | A |
Does not change from less than 2.05 V | B |
HINT:
Perform "Inspection After Repair" after replacing the throttle body with motor assembly.
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A | REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY |
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2. | CHECK HARNESS AND CONNECTOR (THROTTLE POSITION SENSOR - ECM) |
(a) Disconnect the throttle body with motor assembly connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
C57-2 (VC) - C88-109 (VCTA) | Always | Below 1 Ω |
C57-3 (VTA2) or C88-87 (VTA2) - Body ground | Always | 10 kΩ or higher |
OK | REPLACE ECM |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |