C1244 — ABS Outlet Valve Coil LR Circuit Short To Battery #

Note: The code description may vary depending on the vehicle manufacturer.

• ABS Outlet Valve Coil LR Circuit Short To Battery (General/OEM)
• Left Rear ABS Outlet Valve Short Circuit to B+ (Toyota)
• ABS LR Outlet Valve Coil Electrical Short to Battery (Ford)
• Rear Left ABS Solenoid Valve Short to Battery (Mazda)

Summary of code C1244 #

The C1244 diagnostic trouble code indicates that the Anti-lock Braking System (ABS) has detected a short circuit to battery voltage in the Left Rear (LR) outlet valve coil circuit. In simple terms, the ABS module has found an unexpected high voltage—one matching battery voltage—on the control wire for the valve that releases brake pressure at the left rear wheel. This may compromise the ABS function, increasing the risk of wheel lockup during braking. The presence of this code typically triggers a warning light on the dashboard. Addressing this issue quickly is important for maintaining optimal braking performance and vehicle safety.

Common symptoms for code C1244 #

When code C1244 is present, drivers might notice several changes in vehicle behavior. The most obvious is the illumination of the ABS warning light, signaling that the system may not be functioning as intended. In some cases, the ABS system may be disabled entirely, leaving only standard braking available. Occasionally, you may notice changes in brake pedal feel or hear unusual noises from the ABS module.

• ABS warning light illuminated on the dashboard
• Loss of ABS function (standard braking only)
• Increased risk of wheel lockup during hard or slippery braking
• Possible changes in brake pedal feedback (harder or softer than usual)
• Intermittent or persistent warning chimes

Probable causes for code C1244 #

The most frequent causes of a C1244 code involve electrical faults in the ABS valve circuit. These typically include wiring problems, faults within the ABS modulator, or less commonly, issues inside the control module itself. Here are the causes, ordered from most to least likely:

1. Shorted wiring harness to the left rear ABS outlet valve (damaged insulation contacting battery voltage)
2. Faulty left rear ABS outlet valve solenoid (internal short circuit)
3. Corroded or contaminated connectors at the ABS module or valve block
4. ABS control module malfunction (internal relay or driver failure)
5. Incorrect or aftermarket wiring modifications

Step-by-step diagnosis for code C1244 #

Diagnosing the C1244 code requires a systematic approach to isolate the fault. ABS circuits are safety-critical, so always follow safety precautions and confirm that the vehicle is secure before working on the braking system. Here’s a proven process:

• Verify the code with a professional scan tool; clear codes and see if C1244 returns.
• Visually inspect the wiring harness from the ABS module to the left rear wheel for damage, pinching, or exposed wires.
• Check connectors at both the ABS module and the left rear valve block for corrosion, moisture, or bent pins.
• Use a digital multimeter to measure resistance between the ABS module and the left rear outlet valve; check for continuity to ground and battery voltage.
• If wiring and connectors are intact, unplug the ABS solenoid and check for internal short (low resistance to ground or battery on the coil terminals).
• If all external checks pass, suspect the ABS module itself and follow OEM-specific test procedures for internal driver faults.

Possible repairs for code C1244 #

The repair will depend on which component caused the short circuit. Once you’ve pinpointed the issue, address it with the following solutions:

• Repair or replace damaged wiring to the left rear ABS valve (replace harness sections or re-insulate as needed)
• Replace the left rear ABS outlet valve solenoid if it is internally shorted
• Clean or replace corroded connectors at the ABS module or valve block
• Replace the ABS control module if internal faults are confirmed
• Undo any improper wiring modifications and restore OEM wiring standards

Is it safe to drive with code C1244? #

Limited: While your basic brakes will still work, ABS functionality is compromised or disabled when this code is active. This means you may not have anti-lock protection in emergency or slippery braking situations, increasing the risk of wheel lockup and loss of control. If the ABS light is on, drive with extra caution and avoid hard braking until repairs are made. Immediate repair is recommended for safe driving, especially in poor weather or challenging road conditions.

Vehicles most commonly affected by code C1244 #

Code C1244 is seen most often on vehicles with sophisticated ABS systems, particularly those sharing common ABS module designs. While it can occur on various makes, here are some models where this code is more frequently reported:

• Toyota Camry, Highlander, Tacoma
• Ford F-150, Explorer, Escape
• Mazda 6, CX-5, Mazda3
• Lexus ES, RX
• Some Chevrolet and GMC trucks with similar ABS architectures

Common mistakes & best practices for code C1244 #

Mistakes in diagnosing or repairing C1244 often result from assumptions or skipping steps. To avoid wasted time and repeat failures, keep these pointers in mind:

• Don’t immediately replace the ABS module without checking all external wiring and valve solenoids.
• Always disconnect the battery before testing or replacing ABS components to prevent accidental shorts or module damage.
• Use only OEM or high-quality parts for repairs—aftermarket solenoids or modules can introduce new problems.
• After repairs, always clear codes and road test to confirm the repair.

Express FAQ — C1244 #

Still have questions? Here are quick answers to the most common concerns:

• Q: Will my brakes still work if C1244 is present?
  A: Yes, your basic brakes will work, but ABS protection may be lost. Braking performance in emergencies or slippery conditions can be severely compromised.
• Q: Can a simple wiring repair really fix this code?
  A: Absolutely. Many C1244 cases are resolved by repairing a pinched, cut, or corroded wire in the ABS harness.