C1241

Low Battery Positive Voltage

Car Fault Codes Toyota Chassis & brakes

Can you still drive? With care, short trips only

Who can fix it? DIY with some experience

Typical repair time 15 minutes – 2.5 hours

Typical cost SAR 100 to 2,000

What it means

This is a Toyota-specific code; the same number may mean something else on other makes. The ABS and stability control computer detected supply voltage below its required limit, and it suspends both systems temporarily. The cause is usually a weak battery, a charging problem or poor connections, and it often appears after a jump start.

Models covered: Toyota models with ABS/VSC.

Symptoms4

ABS light and stability or slip indicator on.
Slow cranking or dim lights.
Battery charge light may come on if the alternator is at fault.
Lights may go out by themselves once voltage recovers, then return.

Possible causes5

Weak or old battery.
Poor charging from the alternator or its belt.
Loose or corroded battery terminals or ground points.
Voltage dip during cranking or after a jump start.
Damaged fuse or connector in the brake computer power feed.

How to diagnose5

Measure battery voltage engine off, while cranking and with the engine running to check charging.
Inspect and clean battery terminals and ground points.
Check the fuse and connector feeding the brake computer.
Measure voltage at the brake computer supply terminals with the engine running and compare with battery voltage.
Clear the code after fixing the voltage issue and confirm it stays away.

How to fix5

Clean and tighten the battery terminals and grounds.
Charge or replace the battery.
Repair or replace the alternator or its belt if charging is weak.
Repair the fuse or connector in the brake computer feed.
Clear the codes and confirm the ABS and stability lights stay off after a drive.

Repair cost

0–500

500–2,000

2,000–5,000

5,000+

In Saudi riyals; the highlighted part is the expected range for this fault.

Cleaning terminals or charging the battery is at the low end; a new battery or alternator pushes the cost to the top of the range.

Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026

Frequently asked questions

C1241 showed up after a jump start. Is something wrong?

The code was most likely logged during the voltage drop before starting. If the battery is healthy and charging well, clear the code; if it returns, test the battery and charging.

Do the brakes still work with this code?

Normal braking works, but ABS and stability control may be off, so the wheels can lock under hard braking. Drive carefully and fix the voltage issue soon.

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This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.

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