P2556 OBD-II: Engine Coolant Level Sensor/Switch Circuit

P2556 Severity

Urgent

Should you fix P2556 yourself?

Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.

Proper diagnosis will save you time and money on unnecessary repairs.

Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.

Schedule Diagnosis

P2556 Summary Find a Repair Shop P2556 Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P2556?

The Engine Coolant Level Sensor tells the engine computer (PCM) the level of the coolant in the engine coolant system. Usually this sensor is located in the pressurized reservoir. If the level sensor sends back an implausible signal, code P2556 will be set.

OBD II Fault Code

OBD II P2556

OBD-II Code Powertrain Control Module (PCM) failure is defined as a Engine Coolant Level Sensor/Switch Circuit

Common Problems That Trigger the P2556 Code

Coolant level sensor failure
Powertrain Control Module (PCM) failure
Wiring issue

OBD Code Resources

Exceptional warranty

Shops offer at least a 12-month or 12,000-mile warranty.

Satisfied customers

We ensure high satisfaction through verified customer reviews.

Transparent pricing

You'll get a Fair Price Guarantee on all RepairPal estimates.

Millions trust us for auto repair — RepairPal Certified^® locations must pass a rigorous approval process to ensure quality, customer satisfaction, and fair pricing.

OBD II Fault Code

OBD II P2556

OBD-II Code Powertrain Control Module (PCM) failure is defined as a Engine Coolant Level Sensor/Switch Circuit

Common Problems That Trigger the P2556 Code

Coolant level sensor failure
Powertrain Control Module (PCM) failure
Wiring issue

P2556 OBD-II: Engine Coolant Level Sensor/Switch Circuit

Should you fix P2556 yourself?

What causes OBD-II fault code P2556?

Need a P2556 diagnosis? Trust our experts.

OBD II Fault Code

Common Problems That Trigger the P2556 Code

OBD Code Resources

Ask our experts about P2556.

Other OBD-II Codes

OBD II Fault Code

Common Problems That Trigger the P2556 Code