7GR-FKS ENGINE CONTROL SFI SYSTEM P022015 Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Battery or Open
DESCRIPTION
Refer to DTC P012011.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P022015 | Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Battery or Open | The output voltage of VTA2 is higher than 4.75 V, and VTA1 is less than 2.367 V for 2 seconds or more (1 trip detection logic). | ·
Throttle position sensor (throttle body with motor assembly) ·
Open in VTA2 circuit ·
Short between VCTA and VTA2 circuits ·
ECM |
Comes on | DTC stored | SAE Code: P0223 |
MONITOR DESCRIPTION
The ECM uses the throttle position sensor to monitor the throttle valve opening angle. If the VTA2 terminal voltage is higher than the threshold, the ECM will illuminate the MIL and store this DTC.
MONITOR STRATEGY
| Frequency of Operation | Continuous |
CONFIRMATION DRIVING PATTERN
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for at least 30 seconds.
Turn the ignition switch to ON [A].
Turn the GTS on.
Start the engine.
With the vehicle stationary, fully depress and release the accelerator pedal [B].
Idle the engine for 2 seconds or more [C].
Enter the following menus: Powertrain / Engine / Trouble Codes [D].
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: P022015.
Check the DTC judgment result.
| GTS 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:
- ·
If the judgment result is NORMAL, the system is normal.
·If the judgment result is ABNORMAL, the system is malfunctioning.
·If the judgment result is INCOMPLETE, perform steps [B] through [D] again.
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° 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 accelerator pedal angle, to allow the vehicle to continue running 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 ignition switch is turned off.
WIRING DIAGRAM
Refer to DTC P012011.
CAUTION / NOTICE / HINT
- HINT:
-
Read Freeze Frame Data using the GTS. 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
Disconnect the throttle body with motor assembly connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E53-4 (VTA2) - E2-22 (VTA2) Always Below 1 Ω E53-5 (VC) or E2-30 (VCTA) - Other terminals Always 10 kΩ or higher E53-4 (VTA2) or E2-22 (VTA2) - Other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Throttle Body with Motor Assembly) |
Disconnect the throttle body with motor assembly connector.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition E53-5 (VC) - E53-3 (E2) Ignition switch ON 4.5 to 5.5 V E53-4 (VTA2) - E53-3 (E2) Ignition switch ON 3.0 to 5.0 V
- Result:
Proceed to OK NG
OK
NG
Disconnect the throttle body with motor assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E53-5 (VC) - E53-4 (VTA2) Ignition switch off 190 to 210 kΩ
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Throttle Body with Motor Assembly) |
Disconnect the throttle body with motor assembly connector.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Throttle Position Sensor No.2 Voltage.
- Powertrain > Engine > Data List
-
Tester Display Throttle Position Sensor No.2 Voltage - 50003 372 76
According to the display on the GTS, read the Data List.
- HINT:
-
Use the snapshot function to record the value displayed or make a note of it.
Turn the ignition switch off.
Turn the GTS off.
Connect terminals 4 (VTA2) and 3 (E2) of the throttle body with motor assembly connector on the wire harness side.
- NOTICE:
-
If the VTA2 terminal voltage or the resistance between VTA2 and E2 is abnormal and terminals 4 (VTA2) and 3 (E2) of the throttle body with motor assembly connector are connected, excessive current may flow through the circuit. In this case, do not connect the terminals.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Throttle Position Sensor No.2 Voltage.
- Powertrain > Engine > Data List
-
Tester Display Throttle Position Sensor No.2 Voltage - 50003 372 76
Compare the vehicle of the Data List item Throttle Position Sensor No.2 Voltage after the circuit is shorted to the value when the throttle body with motor assembly connector was connected.
- Result:
Result Proceed to Changes from higher than 4.75 V to less than 2.05 V A Does not change from higher than 4.75 V B
- HINT:
-
Perform "Inspection After Repair" after replacing the throttle body with motor assembly.
A
B