SFI SYSTEM, Diagnostic DTC:P003312
| DTC Code | DTC Name |
|---|---|
| P003312 | Turbocharger / Supercharger Bypass Valve "A" Control Circuit Short to Battery |
DESCRIPTION
The air by-pass valve is installed to the turbocharger sub-assembly. It opens and closes in response to drive commands from the ECM. If the air by-pass valve closes during normal boosting and the throttle valve closes while boost pressure is being applied, the air by-pass valve will open and the excess pressure between the turbocharger and the throttle valve will be released.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
Note |
|---|---|---|---|---|---|---|
P003312 |
Turbocharger / Supercharger Bypass Valve "A" Control Circuit Short to Battery |
Short to +B in air by-pass valve circuit (1 trip detection logic). |
|
Does not come on |
DTC stored |
SAE Code: P0035 |
MONITOR DESCRIPTION
The ECM monitors the output voltage while the air by-pass valve is operating.
The air by-pass valve turns on and off according to switching of a transistor inside the ECM.
If a continuous mismatch occurs between the ECM transistor state and the output voltage, the ECM determines there is a malfunction in the air by-pass valve circuit and stores this DTC.
CONFIRMATION DRIVING PATTERN
Connect the GTS to the DLC3.
Turn the ignition switch to ON and 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 and turn the GTS on.
Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].
Accelerate to 50 km/h (31 mph) or more with the accelerator pedal fully depressed [B].
CAUTION:When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Quickly release the accelerator pedal from the fully depressed position [C].
Enter the following menus: Powertrain / Engine / Trouble Codes [D].
Read the pending DTCs.
Tip: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: P003312.
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
N/A
Unable to perform DTC judgment
Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
Tip:If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.
If the judgment result shows INCOMPLETE or N/A, perform steps [B] through [D] again.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
Inspect the fuses for circuits related to this system before performing the following procedure.
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
PERFORM ACTIVE TEST USING GTS (ACTIVATE THE AIR BYPASS VALVE)
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Active Test / Activate the Air Bypass Valve / Data List / All Data / Air Bypass Valve Control.
Powertrain > Engine > Active Test
Active Test Display
Activate the Air Bypass Valve
Data List Display
Air Bypass Valve Control
According to the display on the GTS, perform the Active Test and check the operation and operation sound of the air by-pass valve.
OK
Active Test
Standard
ON
ON is displayed for Data List item "Air Bypass Valve Control"
Air by-pass valve operates (operation sound is normal)
Result
Proceed to
OK
NG
INSPECT AIR BY-PASS VALVE
Inspect the air by-pass valve.
Result
Proceed to
OK
NG
CHECK HARNESS AND CONNECTOR (AIR BY-PASS VALVE - ECM)
Disconnect the air by-pass valve connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
B202-2 or B208-67 (ABV) - Other terminals
Always
10 kΩ or higher
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
CHECK WHETHER DTC OUTPUT RECURS (DTC P003312)
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs.
Powertrain > Engine > Clear DTCs
Turn the ignition switch off and wait for at least 30 seconds.
Turn the ignition switch to ON.
Turn the GTS on.
Start the engine and warm it up.
Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Powertrain > Engine > Utility
Tester Display
All Readiness
Input the DTC: P003312.
Check the DTC judgment result.
Result
Result
Proceed to
NORMAL
(DTCs are not output)
A
ABNORMAL
(DTC P003312 is output)
B