P2602high severityPowertrain
Coolant Pump A Control Circuit Low
on 2005 Dodge Ram 2500 5.9L I6 Cummins Diesel · 4WD
What this code means
Low voltage on auxiliary coolant pump circuit.
Symptoms
- Check engine light
- Possible overheating
Common causes
- Short to ground
- Failed pump
- Wiring damage
Diagnostic steps
- Measure circuit voltage
- Check for shorts
Repair notes
Repair wiring or replace pump.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1