Throttle Actuator "A" Control Motor Circuit Short to Ground or Open (P210014,P210015)
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 with motor
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 a
request from the hybrid system.
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
MIL | Memory |
Note |
P210014 |
Throttle Actuator "A" Control Motor Circuit Short to Ground or Open |
Both of the following conditions are met for 2 seconds or more (1 trip detection logic):
- The throttle actuator drive duty cycle is 80% or higher.
- The throttle actuator current is less than 0.5 A.
|
- Open or short in throttle actuator circuit
- Throttle actuator
- ECM
| Comes on |
DTC stored | SAE Code: P2102 |
P210015 | Throttle Actuator "A" Control Motor Circuit Short to Battery or Open |
Either of the following conditions is met (1 trip detection logic):
- A motor driver IC high current limiter monitor input malfunction is detected.
- A motor driver IC high current inhibit signal is received.
|
- Open or short in throttle actuator circuit
- Throttle actuator
- Throttle valve
- Throttle body with motor assembly
- ECM
| Comes on |
DTC stored | SAE Code: P2103 |
MONITOR DESCRIPTION
The
ECM monitors the electrical current through the electronic actuator,
and detects malfunctions and open circuits in the throttle actuator
based on this value. If the current is outside the standard range, the
ECM determines that there is a malfunction in the throttle actuator. In
addition, if the throttle valve does not operate properly (for example,
it is stuck open), the ECM will determines there is a malfunction,
illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs | P2102: Electronic throttle actuator control motor range check (low current)
P2103: Electronic throttle actuator control motor range check (high current) |
Required Sensors/Components (Main) | Throttle actuator (throttle body with motor assembly) |
Required Sensors/Components (Related) |
- |
Frequency of Operation |
Continuous |
Duration |
2 seconds: P2102 0.1 seconds: P2103 (case 1) 0.6 seconds: P2103 (case 2) |
MIL Operation | Immediate |
Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
All
Monitor runs whenever the following DTCs are not stored |
None |
P2102
All of the following conditions are met |
- |
Command to electronic throttle actuator |
On |
Output duty cycle |
80% or higher |
Electronic throttle actuator power supply voltage |
8 V or higher |
Motor current change during last 0.016 seconds |
Less than 0.2 A |
P2103
Both of the following conditions are met |
- |
Command to electronic throttle actuator |
On |
Either of the following conditions is met |
1 or 2 |
1. Electronic throttle actuator power supply voltage |
8 V or higher |
2. Command to electronic throttle actuator power |
On |
TYPICAL MALFUNCTION THRESHOLDS
P2102
Throttle actuator current | Less than 0.5 A |
P2103: (Case 1)
Motor driver IC high current limiter monitor input |
Fail |
P2103: (Case 2)
Motor driver IC high current inhibit signal | On |
CONFIRMATION DRIVING PATTERN
HINT:
- After repair has been completed, clear the DTC and then check that the
vehicle has returned to normal by performing the following All Readiness
check procedure.
Click here
- When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for at least 30 seconds.
- Turn the power switch on (IG) [A].
- Turn the Techstream on.
- Put the engine in Inspection Mode (Maintenance Mode).
Click here
- Start the engine.
- With the vehicle stationary, fully depress the accelerator pedal and quickly release it [B].
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.
- Check that 16 seconds or more have elapsed since the accelerator pedal was first depressed.
- Enter the following menus: Powertrain / Engine / Trouble Codes [C].
- Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P210014 or P210015.
- Check the DTC judgment result.
Techstream Display |
Description |
NORMAL |
- DTC judgment completed
- System normal
|
ABNORMAL |
- DTC judgment completed
- System abnormal
|
INCOMPLETE |
- DTC judgment not completed
- Perform driving pattern after confirming DTC enabling conditions
|
HINT:
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 then turned off.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
HINT:
- The throttle actuator current (Throttle Motor Current) and the throttle
actuator duty ratio (Throttle Motor Duty Ratio (Open) / Throttle Motor
Duty Ratio (Close)) can be read using the Techstream. However, the ECM
shuts off the throttle actuator current when the electronic throttle
control system malfunctions.
- 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. | INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) |
(a) Inspect the throttle body with motor assembly.
Click here
HINT:
Perform "Inspection After Repair" after replacing the throttle body with motor assembly.
Click here
NG |
| REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY |
OK |
| |
2. |
CHECK HARNESS AND CONNECTOR (THROTTLE BODY WITH MOTOR ASSEMBLY - 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 |
C25-6 (M+) - C55-2 (M+) |
Always | Below 1 Ω |
C25-5 (M-) - C55-1 (M-) |
Always | Below 1 Ω |
C25-6 (M+) or C55-2 (M+) - Body ground and other terminals |
Always | 10 kΩ or higher |
C25-5 (M-) or C55-1 (M-) - Body ground and other terminals |
Always | 10 kΩ or higher |
NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
| |
3. |
INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) |
(a) Check for foreign matter between the throttle valve and the housing.
OK:
No foreign matter between the throttle valve and housing.
HINT:
Perform "Inspection After Repair" after cleaning the throttle body with motor assembly.
Click here
NG |
| REMOVE FOREIGN MATTER AND CLEAN THROTTLE BODY WITH MOTOR ASSEMBLY |
OK |
| |
4. |
INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY (THROTTLE VALVE) |
(a) Check if the throttle valve opens and closes smoothly.
OK:
Throttle valve opens and closes smoothly.
HINT:
Perform "Inspection After Repair" after replacing the throttle body with motor assembly.
Click here
OK |
| REPLACE ECM |
NG |
| REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY |
Throttle/Pedal Position Sensor "A" Minimum Stop Performance (P210900)
DESCRIPTION
The idle speed
is controlled by the Electronic Throttle Control System (ETCS). The ETCS
is comprised of a throttle actuator, which operates the throttle valve,
and a throttle position sensor, which detects the opening amount of the
throttle valve. The ECM controls the throttle actuator to adjust the
throttle valve opening amount so that the idle speed is maintained at
the target idle speed.
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
MIL | Memory |
Note |
P210900 |
Throttle/Pedal Position Sensor "A" Minimum Stop Performance |
The
ISC learned value is approximately 3 times larger than normal even
though the actual intake air amount during idle is within the normal
range (up to 1.5 times the normal amount) (1 trip detection logic). |
Throttle body with motor assembly |
Does not come on | DTC stored |
SAE Code: P2109 |
HINT:
- The ISC learned value is the calculated intake air amount corresponding
to the throttle opening amount necessary to maintain the idling speed.
- This malfunction is only detected once per trip. After it has been
detected once, the system will not monitor for the malfunction for the
rest of the trip.
- The system uses the throttle body with motor assembly and mass air flow meter sub-assembly to detect this malfunction.
MONITOR DESCRIPTION
If
there are deposits in the throttle valve, a decrease in the ISC flow
rate may cause engine stall or unstable idling. Therefore, the necessary
ISC flow rate for idling is maintained using the ISC learned value and
feedback. The ECM stores this DTC if the ISC learned value approaches
its limit. The ECM begins monitoring for the DTC detection conditions
when the following preconditions are met:
- The mass air flow meter sub-assembly is normal.
- Atmospheric pressure is 85 kPa(abs) [12.3 psi(abs)] or higher.
- The vehicle has been driven at a speed of 30 km/h (19 mph) or more at least once.
- The engine coolant temperature is 45°C (113°F) or less at engine start,
the engine is warmed up and conditions for ISC learning are met, or the
power switch has been turned on (IG) (include engine running) for 1 hour
or more, the engine is warmed up and conditions for ISC learning are
met.
CAUTION / NOTICE / HINT
NOTICE:
HINT:
- Since a pending DTC is not stored for this DTC, it takes time to confirm
whether the malfunction has been successfully repaired by checking for
this DTC. When confirming whether the malfunction has been successfully
repaired, compare "ISC Learning Value" recorded in the Freeze Frame Data
with "ISC Learning Value" in the Data List after repairs have been made
to save time.
- 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. | CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P210900) |
(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 / Trouble Codes.
(e) Read the DTCs.
Powertrain > Engine > Trouble Codes
Result | Proceed to |
DTC P210900 is output |
A |
DTC P210900 and other DTCs are output |
B |
HINT:
If any DTCs other than P210900 are output, troubleshoot those DTCs first.
B |
| GO TO DTC CHART |
A |
| |
2. |
READ FREEZE FRAME DATA (ISC LEARNING VALUE) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Using the Techstream, check "ISC Learning Value" in the Freeze Frame Data.
Powertrain > Engine > DTC(P210900) > Freeze Frame Data
Tester Display |
ISC Learning Value |
HINT:
Be
sure to confirm that the Freeze Frame Data item "ISC Learning Value" is
the same as that used when confirming whether the malfunction has been
successfully repaired.
NEXT |
| |
3. |
INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY |
(a) Check for foreign matter between the throttle valve and the housing.
*1 | Throttle Body with Motor Assembly |
*2 | Bore |
*3 | Throttle Valve |
- | - |
*a | Reference |
*b | Throttle Body with Motor Assembly Cross-section Diagram |
*c | When valve fully opened |
*d | Deposits |
HINT:
The illustration is for reference only, actual parts may differ.
Result | Proceed to |
Foreign matter between the throttle valve and housing |
A |
No foreign matter between the throttle valve and housing |
B |
HINT:
Perform "Inspection After Repair" after replacing the throttle body with motor assembly.
Click here
B |
| REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY |
A |
| |
4. |
REMOVE FOREIGN MATTER (CLEAN THROTTLE BODY WITH MOTOR ASSEMBLY) |
(a) Clean off any deposits inside of the throttle body with motor assembly.
*1 | Throttle Body with Motor Assembly |
*2 | Bore |
*3 | Throttle Valve |
- | - |
*a | Reference |
*b | Throttle Body with Motor Assembly Cross-section Diagram |
*c | When valve fully opened |
*d | Do not directly apply cleaner |
*e | Deposits |
- | - |
(1) Push open the throttle valve and wipe off any deposits from the valve and bore using a cloth soaked in non-residue solvent.
NOTICE:
- Make sure that the cloth or your fingers do not get caught in the valve.
- Make sure that foreign matter does not enter the throttle valve.
- Do not directly apply non-residue solvent to the throttle body with
motor assembly or wash the throttle body with motor assembly. Cleaning
solvent may leak into the motor from the shaft and cause problems such
as rust or valve movement problems.
- If there is coating material on the edge of the throttle valve, be careful not to remove it.
- Push the throttle valve open gently with your finger and check that the throttle valve moves smoothly.
HINT:
- If the throttle valve does not open smoothly, replace the throttle body with motor assembly.
Click here
- The illustration is for reference only, actual parts may differ.
NEXT |
| |
5. |
READ VALUE USING TECHSTREAM (ISC LEARNING VALUE) |
(a) Perform "Inspection After Repair" after cleaning the throttle body with motor assembly.
Click here
(b) Connect the Techstream to the DLC3.
(c) Turn the power switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Powertrain / Engine / Data List / ISC Learning Value.
Powertrain > Engine > Data List
Tester Display |
ISC Learning Value |
(f) According to the display on the Techstream, read the Data List.
OK:
The value of ISC Learning Value is half or less of ISC Learning Value recorded in the Freeze Frame Data.
HINT:
Perform "Inspection After Repair" after replacing the throttle body with motor assembly.
Click here
OK |
| END |
NG |
| REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY |
Throttle Actuator "A" Control System Actuator Stuck Open (P211172,P211173)
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 built into the throttle body with
motor 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 a
request from the hybrid system.
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
MIL | Memory |
Note |
P211172 |
Throttle Actuator "A" Control System Actuator Stuck Open |
The ECM signals the throttle actuator to close, but the actuator is stuck (1 trip detection logic). |
- Throttle actuator
- Throttle body with motor assembly
- Throttle valve
- Wire harness or connector
- ECM
| Comes on |
DTC stored | SAE Code: P2111 |
P211173 | Throttle Actuator "A" Control System Actuator Stuck Closed |
The ECM signals the throttle actuator to open, but the actuator is stuck (1 trip detection logic). |
- Throttle actuator
- Throttle body with motor assembly
- Throttle valve
- Wire harness or connector
- ECM
| Comes on |
DTC stored | SAE Code: P2112 |
MONITOR DESCRIPTION
If
the throttle valve remains at a certain angle despite a high drive
current from the ECM, the ECM determines that there is a malfunction in
the Electronic Throttle Control System (ETCS), illuminates the MIL and
stores a DTC.
MONITOR STRATEGY
Related DTCs | P2111: Throttle actuator stuck open
P2112: Throttle actuator stuck closed |
Required Sensors/Components (Main) | Throttle actuator (throttle body with motor assembly) |
Required Sensors/Components (Related) |
- |
Frequency of Operation |
Continuous |
Duration |
0.5 seconds |
MIL Operation |
Immediate |
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
P2111: Throttle Actuator Stuck Open
All of the following conditions are met |
- |
System guard* judge condition |
On |
Throttle actuator current |
2 A or higher |
Duty-cycle to close throttle |
80% or higher |
P2112: Throttle Actuator Stuck Closed
All of the following conditions are met | - |
System guard* judge condition | On |
Throttle actuator current | 2 A or higher |
Duty-cycle to open throttle | 80% or higher |
*: System guard set when following conditions are met |
- |
Throttle actuator |
On |
Throttle actuator duty calculation |
Executing |
Throttle position sensor fail (P0121, P0122, P0123, P0222, P0223, P2135) |
Not detected |
Throttle actuator current-cut operation |
Not executing |
Throttle actuator power supply |
4 V or higher |
Throttle actuator fail (P2102) |
Not detected |
TYPICAL MALFUNCTION THRESHOLDS
P2111: Throttle Actuator Stuck Open
Throttle position sensor voltage | No change |
P2112: Throttle Actuator Stuck Closed
Throttle position sensor voltage | No change |
CONFIRMATION DRIVING PATTERN
HINT:
- After repair has been completed, clear the DTC and then check that the
vehicle has returned to normal by performing the following All Readiness
check procedure.
Click here
- When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for at least 30 seconds.
- Turn the power switch on (IG) [A].
- Turn the Techstream on.
- Put the engine in Inspection Mode (Maintenance Mode).
Click here
- Start the engine and fully depress and release the accelerator pedal quickly (to open and close the throttle valve) [B].
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.
- Enter the following menus: Powertrain / Engine / Trouble Codes [C].
- Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P211172 or P211173.
- Check the DTC judgment result.
Techstream Display |
Description |
NORMAL |
- DTC judgment completed
- System normal
|
ABNORMAL |
- DTC judgment completed
- System abnormal
|
INCOMPLETE |
- DTC judgment not completed
- Perform driving pattern after confirming DTC enabling conditions
|
HINT:
FAIL-SAFE
When
these DTCs 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 7.5° throttle valve opening angle by the
return spring. The ECM stops the engine and the vehicle can be driven
using solely the hybrid system. 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 then turned off.
WIRING DIAGRAM
Refer to DTC P210014.
Click here
CAUTION / NOTICE / HINT
NOTICE:
HINT:
- Refer to "Data List / Active Test" [Throttle Position Sensor No.1
Voltage, Throttle Position Sensor No.2 Voltage, Throttle Position
Command, Throttle Motor Current, Throttle Motor Duty Ratio (Open) and
Throttle Motor Duty Ratio (Close)].
Click here
- 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. | CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P211172 OR P211173) |
(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 / Trouble Codes.
(e) Read the DTCs.
Powertrain > Engine > Trouble Codes
Result | Proceed to |
DTC P211172 or P211173 is output |
A |
DTC P211172 or P211173 and other DTCs are output |
B |
HINT:
If any DTCs other than P211172 or P211173 are output, troubleshoot those DTCs first.
B |
| GO TO DTC CHART |
A |
| |
2. |
INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) |
(a)
Check for foreign matter between the throttle valve and housing. If
necessary, clean the throttle body with motor assembly. Also check that
the throttle valve moves smoothly.
OK:
Throttle valve is not contaminated with foreign matter and moves smoothly.
HINT:
Perform "Inspection After Repair" after cleaning the throttle body with motor assembly.
Click here
NG |
| GO TO STEP 6 |
OK |
| |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Clear the DTCs.
Powertrain > Engine > Clear DTCs
(e) Turn the power switch off and wait for at least 30 seconds.
NEXT |
| |
4. |
READ VALUE USING TECHSTREAM (THROTTLE POSITION) |
(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.1 Voltage, Throttle Position Sensor No.2 Voltage and
Throttle Position Command.
Powertrain > Engine > Data List
Tester Display |
Throttle Position Sensor No.1 Voltage |
Throttle Position Sensor No.2 Voltage |
Throttle Position Command |
(e) Read the values displayed on the Techstream while wiggling the ECM wire harness.
(f) Enter the following menus: Powertrain / Engine / Trouble Codes.
(g) Read the DTCs.
Powertrain > Engine > Trouble Codes
Result | Proceed to |
Value in Data List changes when wire harness is wiggled, or DTC is output |
A |
Other than above |
B |
B |
| GO TO STEP 7 |
A |
| |
5. |
REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE BODY WITH MOTOR ASSEMBLY - ECM) |
(a)
As the DTC was stored due to a change in the contact resistance of the
connector, repair or replace the wire harness or connector.
Click here
NEXT | |
END |
6. | REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY |
(a) Replace the throttle body with motor assembly.
Click here
HINT:
Perform "Inspection After Repair" after replacing the throttle body with motor assembly.
Click here
NEXT |
| |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Clear the DTCs.
Powertrain > Engine > Clear DTCs
(e) Turn the power switch off and wait for at least 30 seconds.
NEXT |
| |
8. |
CHECK WHETHER DTC OUTPUT RECURS (DTC P211172 OR P211173) |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Enter the following menus: Powertrain / Engine / Trouble Codes.
(c) Read the DTCs.
Powertrain > Engine > Trouble Codes
Result | Proceed to |
DTCs are not output | A |
DTC P211172 or P211173 is output |
B |
A |
| END |
B |
| REPLACE ECM |