P2601 OBD-II: Coolant Pump "A" Control Circuit Range/Performance
P2601 Severity
Should you fix P2601 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.
What causes OBD-II fault code P2601?
The Oxygen Sensor (or Air/Fuel Ratio Sensor) tells the engine control module how much oxygen is in the exhaust stream between the engine and the Catalytic Converter. The Oxygen Sensor's signal is supposed to fluctuate a minimum of 10 times per second within a specified range. If the engine control module (PCM) determines that the Oxygen Sensor is not fluctuating throughout the normal range, the PCM will set code P2195.
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OBD II Fault Code
- OBD II P2601
OBD-II Code Powertrain Control Module (PCM) failure is defined as a Coolant Pump "A" Control Circuit Range/Performance
The Oxygen Sensor (or Air/Fuel Ratio Sensor) tells the engine control module how much oxygen is in the exhaust stream between the engine and the Catalytic Converter. The Oxygen Sensor's signal is supposed to fluctuate a minimum of 10 times per second within a specified range. If the engine control module (PCM) determines that the Oxygen Sensor is not fluctuating throughout the normal range, the PCM will set code P2195.
Common Problems That Trigger the P2601 Code
- Coolant Heat Storage (CHS) water pump failure
- Coolant Heat Storage (CHS) water pump relay
- Powertrain Control Module (PCM) failure
- Wiring issue
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