Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a special sensor that helps the engine run smoothly. This code means the sensor isn't getting enough power to work properly.
The Ion Sense Module is a part of the engine's ignition system that helps monitor combustion. This code indicates that the module is receiving a lower voltage than required.
The Ion Sense Module is responsible for detecting ionization in the combustion chamber, which helps in optimizing ignition timing and detecting misfires. A low supply voltage can lead to inaccurate readings and affect engine performance.
• Engine misfires
• Poor fuel economy
• Check Engine Light illuminated
• Faulty ion sense module
• Wiring issues such as a loose connection or damaged wires
• Faulty power supply or battery issues
Ion Sense Module: A component that detects ionization in the combustion chamber to optimize ignition timing.
Voltage: The electrical potential difference, which powers electronic components.
• Check the battery voltage and charging system
• Inspect the wiring and connectors to the ion sense module
• Test the ion sense module for proper operation
• Repair or replace damaged wiring or connectors
• Replace the ion sense module if faulty
• Ensure the battery and charging system are functioning properly
• Multimeter
• OBD-II scanner
• Basic hand tools
$150 - $500
Moderate
• Chevrolet Malibu
• Cadillac CTS
• Buick LaCrosse
• Regular maintenance checks
• Ensure battery terminals are clean and tight
• Inspect wiring for wear and tear periodically
Sensor Issue
• Do not ignore the Check Engine Light
• Have a professional inspect the vehicle if unsure
• Avoid driving long distances until the issue is resolved
Check with the vehicle manufacturer for warranty coverage on emission-related components.
This code is relatively uncommon and typically associated with specific engine designs that use ion sensing technology.
Moderate – It is advisable to address this issue soon to avoid potential engine performance problems.
Driving with a malfunctioning ignition system can lead to increased emissions and may not comply with local emission regulations.
• Engine at operating temperature
• Vehicle in park or neutral
The Ion Sense Module is typically located near the ignition coils or integrated within them.
Q: Can I drive my car with this code?
A: It's best to get it checked soon, as it can affect engine performance and fuel economy.
Q: How can I prevent this issue?
A: Regular maintenance and inspection of the ignition system can help prevent this issue.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
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.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.
Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
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.