Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the car's system that controls gas fumes when the engine is off. It's like a timer that checks if everything is working right when the car is not running.
The P1468 code is triggered when the Engine Control Module (ECM) detects a malfunction in the Evaporative Emission Control (EVAP) system's tank function module, specifically related to its engine-off timer.
The EVAP system prevents fuel vapors from escaping into the atmosphere by storing them in a charcoal canister. The tank function module monitors the system's integrity and functionality, even when the engine is off. If the timer within this module fails to operate correctly, it triggers the P1468 code.
• Check Engine Light illuminated
• Possible fuel odor
• Failed emissions test
• Faulty EVAP system tank function module
• Wiring issues or poor electrical connections
• Defective Engine Control Module (ECM)
EVAP: Evaporative Emission Control System
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the EVAP system tank function module and wiring.
• Test the module's electrical connections and signals.
• Replace the faulty EVAP system tank function module.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford Focus
• Chevrolet Malibu
• Toyota Camry
• Regularly inspect EVAP system components.
• Ensure proper maintenance of the vehicle's electrical system.
• Address Check Engine Light warnings promptly.
Emission Control System Issue
• Do not ignore the Check Engine Light.
• Have your vehicle inspected by a professional if you notice fuel odors.
• Consider regular maintenance checks to prevent future issues.
Check with the vehicle manufacturer for warranty coverage on emission-related components.
The P1468 code has been associated with vehicles that have experienced EVAP system issues due to faulty modules or wiring problems.
Moderate – While not immediately critical, it should be addressed to ensure emissions compliance and avoid potential fines.
Driving with a malfunctioning EVAP system can lead to increased emissions, which may violate environmental regulations.
• Engine off
• Vehicle parked in a safe, ventilated area
The EVAP system tank function module is typically located near the fuel tank or within the engine bay, depending on the vehicle model.
Q: Can I drive with a P1468 code?
A: Yes, but it's best to fix it soon to avoid emissions issues.
Q: Will a P1468 code affect my car's performance?
A: Not directly, but it can lead to emissions problems and a failed emissions test.
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Universal · Digital multimeter
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Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Relevant when EVAP diagnosis points toward purge-flow or purge-control faults.
EVAP diagnosis often includes purge-flow and valve-control faults.
Confirm the failed valve and exact fitment before buying parts.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.