P2600
Coolant Pump A Control Circuit Open
2004-2007 Buick Rainier 4.2L I6
High SeverityPowertrainGeneric (SAE)
Description
Open circuit in the electric auxiliary coolant pump control wiring.
Symptoms
- Engine overheating
- Check engine light
- No cabin heat
- Turbo overheating
Common Causes
- Failed coolant pump
- Broken wiring
- Corroded connector
- Blown fuse
Diagnostic Steps
- Check fuse
- Inspect pump connector
- Measure pump motor resistance
Repair Notes
Replace coolant pump or repair wiring. Check for overheating damage.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P2600 on Other Vehicles
Common Questions
What does code P2600 mean on a 2004-2007 Buick Rainier?
P2600 stands for "Coolant Pump A Control Circuit Open". Open circuit in the electric auxiliary coolant pump control wiring.
What are the symptoms of P2600 on a Buick Rainier?
Common symptoms of P2600 include: Engine overheating, Check engine light, No cabin heat, Turbo overheating.
What causes P2600 on a 2004-2007 Buick Rainier?
Common causes of P2600 include: Failed coolant pump, Broken wiring, Corroded connector, Blown fuse.