C1253: Left Rear Inlet Solenoid Short to Ground
The C1253 code indicates that the Skid Control ECU has detected a short to ground in the left rear wheel inlet solenoid valve circuit. This fault disables the ABS, VSC, and traction control systems, and triggers the corresponding warning lights on the dashboard.
1. Commonly Affected Makes
2. Most Common Causes
- Internal short circuit in the left rear inlet solenoid coil
- Wiring harness between the hydraulic actuator and ECU shorted to ground
- Damaged, corroded, or grounded terminals in the hydraulic actuator connector
- Internal failure of the valve driver within the Skid Control ECU
- Mechanical or electrical failure of the brake actuator assembly
3. Symptoms You Will Notice
- ABS warning light illuminated
- VSC and traction control warning lights on
- ABS, VSC, and traction control systems inoperative
4. Step-by-Step Diagnosis
Scan for codes and verify C1253 is present
Inspect the left rear inlet solenoid circuit for shorts to ground using a multimeter
Check the hydraulic actuator connector for damage, corrosion, or bent pins
Test the solenoid coil resistance and compare to specifications
If wiring and solenoid are OK, suspect a faulty Skid Control ECU or brake actuator assembly
5. Frequently Asked Questions
Is it safe to drive?▼
No, it is not safe to drive with this code active. The ABS, VSC, and traction control systems are disabled, which can lead to loss of vehicle control during emergency braking or slippery conditions. Have the vehicle repaired immediately.
How much does it cost to fix?▼
Repair costs vary widely depending on the root cause. A simple wiring repair may cost $100-$200, while replacing the Skid Control ECU or brake actuator assembly can range from $500 to $1,500 or more, including parts and labor.