Dtc P0452 Or P0453 - Suzuki XL7 2007 Service Manual

Reference Information
Schematic Reference
"Engine Controls Schematics"
Connector End View Reference
• "Engine Control Module Connector End Views"
• "Engine Controls Connector End Views"
Description and Operation
"Fuel System Description: "
Electrical Information Reference
• "Circuit Testing: "
• "Connector Repairs: "
• "Testing for Intermittent Conditions and Poor
Connections: "
• "Wiring Repairs: "
DTC Type Reference
"Powertrain Diagnostic Trouble Code (DTC) Type
Definitions"
Scan Tool Reference
• "Scan Tool Data List - Engine Controls - 3.6L (LY7)"
• "Scan Tool Data Definitions - Engine Controls - 3.6L
(LY7)"
• "Scan Tool Output Controls - Engine Controls - 3.6L
(LY7)"

DTC P0452 or P0453

Diagnostic Instructions
• Perform the "Diagnostic System Check - Vehicle Diagnostic Information: " prior to using this diagnostic procedure.
• Review "Strategy Based Diagnosis: " for an overview of the diagnostic approach.
• "Diagnostic Procedure Instructions - Vehicle Diagnostic Information: " provides an overview of each diagnostic
category.
DTC Descriptors
DTC P0452: Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage
DTC P0453: Fuel Tank Pressure (FTP) Sensor Circuit High Voltage
Diagnostic Fault Information
Circuit
5-Volt Reference
FTP Sensor Signal
Low Reference
Engine General Information and Diagnosis:
Special Tools Required
• J 41413-SPT High Intensity White Light
• J 41413-VLV EVAP Port Vent Fitting Tool
• J 41413-200 Evaporative Emissions System Tester
(EEST)
• J 41413-300 EVAP Cap and Plug Kit
• CH-48096 EVAP Service Port Access Tool
• GE-41415-50 Fuel Tank Cap Adapter
Circuit/System Testing
1. Remove the fuel fill cap. Connect the GE-41415-50
to the fuel tank filler neck. Connect the J 41413-200
to the GE-41415-50.
2. Seal the system using the Purge Seal function with a
scan tool.
3. Pressurize the EVAP system with nitrogen to 5
inches H20. Compare the Fuel Tank Pressure
Sensor parameter to the J 41413-200 pressure/
vacuum gage. The FTP sensor should be within 1
inch H20 of the pressure/vacuum gage.
➢ If the FTP is not within 1 inch H20 of the pressure/
vacuum gage, replace the FTP sensor.
4. Command the vent solenoid valve OPEN with a scan
tool.
➢ If the FTP sensor parameter is not 0 inch H20,
replace the FTP sensor.
Repair Instructions
Perform the "Diagnostic Repair Verification - Vehicle
Diagnostic Information: " after completing the diagnostic
procedure.
• "Fuel Tank Pressure Sensor Replacement: "
• "Control Module References: " for ECM replacement,
setup, and programming
Short to Open/High
Ground Resistance
P0122, P0452,
P0452
P0642
P0452 P0452
— P0446
Signal
Short to Voltage
Performance
P0453, P0643
P0453
—
1A-120
—
—
—