P24D511, P2B7A11

DTC Code	DTC Name
P24D511	EVAP System Pressure Sensor/Switch "B" Circuit Low Circuit Short to Ground
P2B7A11	EVAP System Pressure Sensor/Switch "C" Circuit Low Circuit Short to Ground

DESCRIPTION

The No. 2 turbo pressure sensor is installed between the No. 1 check valve and intake manifold and converts the purge pipe internal pressure into electrical signals, which it outputs to the ECM.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P24D511	EVAP System Pressure Sensor/Switch "B" Circuit Low Circuit Short to Ground	The output voltage from the No. 2 turbo pressure sensor (bank 1) is below 0.97 V for 3 seconds or more (2 trip detection logic).	Open or short in No. 2 turbo pressure sensor (bank 1) circuit No. 2 turbo pressure sensor (bank 1) ECM	Comes on	DTC stored	SAE: P24D7
P2B7A11	EVAP System Pressure Sensor/Switch "C" Circuit Low Circuit Short to Ground	The output voltage from the No. 2 turbo pressure sensor (bank 2) is below 0.97 V for 3 seconds or more (2 trip detection logic).	Open or short in No. 2 turbo pressure sensor (bank 2) circuit No. 2 turbo pressure sensor (bank 2) ECM	Comes on	DTC stored	SAE: P2B7C

Tech Tips

When a DTC is output, check the Data List item "Purge Pressure Sensor Bank1 and Purge Pressure Sensor Bank2" using the GTS.

Click here

DTC No.	Purge Pressure Sensor Bank1 or Purge Pressure Sensor Bank2	Malfunction
P24D511	Approximately 0 kPa [0 psi]	Short in PPG circuit to ground Short in PPG circuit to EPR circuit Open in VCPR circuit
P2B7A11	Approximately 0 kPa [0 psi]	Short in PPG2 circuit to ground Short in PPG2 circuit to EPR circuit Open in VCPR circuit

If the Data List displays a normal value, the normal value may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.

MONITOR DESCRIPTION

The ECM calculates the purge line internal pressure from the No. 2 turbo pressure sensor output voltage. If the No. 2 turbo pressure sensor output voltage is not within the normal range, there may be a malfunction in the No. 2 turbo pressure sensor or an open or short circuit. In this case, the ECM illuminates the MIL and stores a DTC.

Example:

When the sensor output voltage is below 0.97 V for 3 seconds or more, the ECM stores a DTC.

MONITOR STRATEGY

Required Sensors/Components	No. 2 turbo pressure sensor
Frequency of Operation	Continuous

CONFIRMATION DRIVING PATTERN

Connect the GTS to the DLC3.
Turn the engine switch on (IG) and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the engine switch off and wait for at least 30 seconds.
Turn the engine switch on (IG).
Turn the GTS on.
Start the engine and wait 5 seconds or more.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the pending DTCs.
Tech Tips
- 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: P24D511 or P2B7A11.

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

Tech Tips

If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.

WIRING DIAGRAM


*a	PPG
*b	No. 2 Turbo Pressure Sensor (Bank 1)
*c	No. 2 Turbo Pressure Sensor (Bank 2)

CAUTION / NOTICE / HINT

Tech Tips

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.
Bank 1 refers to the bank that includes the No. 1 cylinder*.

*: The No. 1 cylinder is the cylinder which is farthest from the transmission.

Bank 2 refers to the bank that does not include the No. 1 cylinder.

DTC	Suspected Area
P24D511	Bank 1
P2B7A11	Bank 2

PROCEDURE

CHECK HARNESS AND CONNECTOR

Tech Tips

Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.

Disconnect the No. 2 turbo pressure sensor connector.
Turn the engine switch on (IG).

Measure the voltage according to the value(s) in the table below.

Standard Voltage

Tester Connection	Condition	Specified Condition
D42-3 (VC) - D42-1 (GND)	Engine switch on (IG)	4.5 to 5.5 V
D43-3 (VC2) - D43-1 (GND2)	Engine switch on (IG)	4.5 to 5.5 V
D42-2 (PPG) - D42-1 (GND)	Engine switch on (IG)	3.0 to 5.5 V
D43-2 (PPG2) - D43-1 (GND2)	Engine switch on (IG)	3.0 to 5.5 V

Turn the engine switch off and wait for at least 30 seconds.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
D42-3 (VC) - D42-2 (PPG)	Engine switch off	171 to 189 kΩ
D43-3 (VC2) - D43-2 (PPG2)	Engine switch off	171 to 189 kΩ

Result

Proceed to
OK
NG

OK

REPLACE NO. 2 TURBO PRESSURE SENSOR Click here

NG

CHECK HARNESS AND CONNECTOR (NO. 2 TURBO PRESSURE SENSOR - ECM)

Disconnect the No. 2 turbo pressure sensor connector.
Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
D42-3 (VC) - D1-96 (VCPR)	Always	Below 1 Ω
D43-3 (VC2) - D1-96 (VCPR)	Always	Below 1 Ω
D42-2 (PPG) or D1-114 (PPG) - Body ground and other terminals	Always	10 kΩ or higher
D43-2 (PPG2) or D1-113 (PPG2) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

OK

REPLACE ECM Click here

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P24D511, P2B7A11