P262B Code - Control Module Power Off Timer Performance
Quick Answer
This diagnostic applies to internal microprocessor integrity conditions within the Engine Control Module (ECM). Common causes include Low battery voltage, Reprogram Engine Control Module (ECM), Faulty Engine Control Module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P262B indicates Control Module Power Off Timer Performance.
- Common causes
- Common causes include Low battery voltage, Reprogram Engine Control Module (ECM), Faulty Engine Control Module.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P262B Description
What are the Possible Causes of the DTC P262B?
- Low battery voltage
- Reprogram Engine Control Module (ECM)
- Faulty Engine Control Module
- Engine Control Module harness is open or shorted
- Engine Control Module circuit poor electrical connection
How to Fix the DTC P262B?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P262B code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P262B Buick — Control Module Power Off Timer Performance
- P262B Cadillac — Control Module Power Off Timer Performance
- P262B Chevrolet — Control Module Power Off Timer Performance
- P262B GMC — Control Module Power Off Timer Performance
Frequently Asked Questions about P262B Code
1. What does OBDII code P262B mean?
P262B indicates an issue with the control module's power-off timer, which monitors how long the module stays powered after the vehicle is turned off.
2. What are the common symptoms of code P262B?
Symptoms may include the check engine light being illuminated, battery drain, or issues with other electrical components.
3. What causes the P262B code to appear?
Common causes include a faulty power-off timer circuit, a malfunctioning control module, or wiring issues such as shorts or open circuits.
4. Can a weak battery trigger the P262B code?
Yes, a weak or failing battery can cause the power-off timer to malfunction, leading to this code.
5. Is it safe to drive with the P262B code?
While the vehicle may still be operable, prolonged driving with this code can lead to battery drain or more significant electrical problems.
6. How is code P262B diagnosed?
A mechanic will typically use a scan tool to verify the code, inspect the control module and its wiring, and test the timer circuit for proper operation.
7. What repairs can fix the P262B code?
Repairs may include replacing a faulty control module, repairing damaged wiring, or addressing battery or alternator issues.
8. Can disconnecting the battery clear the P262B code?
Disconnecting the battery might temporarily clear the code, but the underlying issue must be resolved to prevent it from recurring.
9. How much does it cost to fix the P262B code?
Repair costs can vary widely, ranging from $100 for wiring repairs to over $1,000 if the control module needs replacement.
10. Can software updates resolve the P262B code?
In some cases, a control module software update from the manufacturer may fix timer performance issues without requiring hardware replacement.
Discuss the causes and fixes for P262B OBDII Code
-
I have a 2015.5 gmc 3500hd diesel dually
Batteries went bad and where replaced. Afterwards I got the dreaded slowdown mode and the P262B code.
No fuses blown or relays bad?
Going to try the def temp control module?
Anyone else had this problem? -
Make sure the battery cables clean are tight, then check the power and grounds to the ECM. Clear the code and check again.
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