Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the computer in your car is having trouble timing how long it stays on after you turn off the car. It's like when you try to set a timer on your tablet, but it doesn't work right.
The control module is responsible for managing various functions in the vehicle. This code indicates an issue with the timer that controls how long the module remains powered after the vehicle is turned off.
The P262B code is triggered when the Engine Control Module (ECM) detects a malfunction in the power-off timer circuit. This timer is responsible for keeping the ECM powered for a specific duration after the ignition is turned off, allowing it to perform necessary shutdown procedures.
• Check Engine Light is on
• Battery drain issues
• Vehicle may not start or have trouble starting
• Faulty control module
• Wiring issues or poor connections
• Software glitches in the ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the control module.
• Check for any software updates for the ECM.
• Repair or replace damaged wiring or connectors.
• Reprogram or update the ECM software.
• Replace the control module if faulty.
• OBD-II scanner
• Multimeter
• Screwdriver set
$200 - $800
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regularly check and maintain vehicle wiring.
• Keep the vehicle software updated.
• Perform routine diagnostics to catch issues early.
Control Module Issue
• Have your vehicle inspected by a professional if you see the Check Engine Light.
• Avoid ignoring the issue as it might lead to battery problems.
Check with the vehicle manufacturer for warranty coverage on control module issues.
This code has been reported in vehicles with aging control modules or those with known software issues.
Moderate – It should be addressed soon to avoid potential battery drain or starting issues.
Driving with a malfunctioning control module can lead to unexpected vehicle behavior. Address the issue promptly.
• Vehicle ignition is turned off.
• Monitor the ECM power-off behavior.
The control module is typically located under the dashboard or in the engine compartment.
Q: Can I drive with a P262B code?
A: It's possible to drive, but it's not recommended as it can lead to battery drain or starting issues.
Q: How do I reset the P262B code?
A: You can clear the code with an OBD-II scanner, but it's important to fix the underlying issue first.
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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.
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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.