P2634 OBD-II: Fuel Pump "B" Control Circuit High

P2634 Severity

Urgent

Should you fix P2634 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.

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What causes OBD-II fault code P2634?

The Fuel Pump enables the transfer of fuel from the tank to the fuel injectors. If the engine control module (PCM) detects an incorrect signal from the Fuel Pump, the PCM will set code P2634.

OBD II Fault Code

OBD II P2634

OBD-II Code Decreased engine performance is defined as a Fuel Pump "B" Control Circuit High

The Fuel Pump enables the transfer of fuel from the tank to the fuel injectors. If the engine control module (PCM) detects an incorrect signal from the Fuel Pump, the PCM will set code P2634.

Decreased engine performance Symptoms

Decreased engine performance
Engine may not start

Common Problems That Trigger the P2634 Code

Fuel pump failure
Powertrain Control Module (PCM) failure
Wiring issue

Common Repairs Needed for the P2634 Code

Fuel Pump Replacement

OBD Code Resources

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OBD II Fault Code

OBD II P2634

OBD-II Code Decreased engine performance is defined as a Fuel Pump "B" Control Circuit High

The Fuel Pump enables the transfer of fuel from the tank to the fuel injectors. If the engine control module (PCM) detects an incorrect signal from the Fuel Pump, the PCM will set code P2634.

Decreased engine performance Symptoms

Decreased engine performance
Engine may not start

Common Problems That Trigger the P2634 Code

Fuel pump failure
Powertrain Control Module (PCM) failure
Wiring issue

Common Repairs Needed for the P2634 Code

Fuel Pump Replacement

P2634 OBD-II: Fuel Pump "B" Control Circuit High

Should you fix P2634 yourself?

What causes OBD-II fault code P2634?

Need a P2634 diagnosis? Trust our experts.

OBD II Fault Code

Decreased engine performance Symptoms

Common Problems That Trigger the P2634 Code

Common Repairs Needed for the P2634 Code

OBD Code Resources

Ask our experts about P2634.

Other OBD-II Codes

OBD II Fault Code

Decreased engine performance Symptoms

Common Problems That Trigger the P2634 Code

Common Repairs Needed for the P2634 Code