P0C45 OBD-II: Hybrid Battery Pack Coolant Temperature Sensor Circuit High

P0C45 Severity

Urgent

Should you fix P0C45 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.

P0C45 Summary Find a Repair Shop P0C45 Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P0C45?

The hybrid battery pack uses an inlet and outlet coolant temperature sensor to monitor and control the hybrid battery temperature. If one or both of these sensors sends back an implausible signal, code P0C45 is set.

OBD II Fault Code

OBD II P0C45

OBD-II Code High voltage system may not start in cold weather is defined as a Hybrid Battery Pack Coolant Temperature Sensor Circuit High

High voltage system may not start in cold weather Symptoms

High voltage system may not start in cold weather

Common Problems That Trigger the P0C45 Code

Battery Energy Control Module (BECM) failure
High voltage battery pack coolant temperature sensor failure
Wiring issue

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Other OBD-II Codes

P0C44: Hybrid Battery Pack Coolant Temperature Sensor Circuit Low P0C43: Hybrid Battery Pack Coolant Temperature Sensor Circuit P0C42: Hybrid Battery Pack Coolant Temperature Sensor Circuit P0C41: DC/DC Converter Temperature Sensor "B" Intermittent/Erratic

OBD II Fault Code

OBD II P0C45

OBD-II Code High voltage system may not start in cold weather is defined as a Hybrid Battery Pack Coolant Temperature Sensor Circuit High

High voltage system may not start in cold weather Symptoms

High voltage system may not start in cold weather

Common Problems That Trigger the P0C45 Code

Battery Energy Control Module (BECM) failure
High voltage battery pack coolant temperature sensor failure
Wiring issue

P0C45 OBD-II: Hybrid Battery Pack Coolant Temperature Sensor Circuit High

Should you fix P0C45 yourself?

What causes OBD-II fault code P0C45?

Need a P0C45 diagnosis? Trust our experts.

OBD II Fault Code

High voltage system may not start in cold weather Symptoms

Common Problems That Trigger the P0C45 Code

Ask our experts about P0C45.

Other OBD-II Codes

OBD Code Resources

Need a P0C45 diagnosis? Trust our experts.

OBD II Fault Code

High voltage system may not start in cold weather Symptoms

Common Problems That Trigger the P0C45 Code