B2469 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B2469 – Auxiliary Heater Coolant Pump Circuit Open

 

B2469 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B2469 Possible Causes

 

Faulty Auxiliary Heater Coolant Pump,Auxiliary Heater Coolant Pump harness is open or shorted,Auxiliary Heater Coolant Pump circuit poor electrical connection

 

B2469 Description

 

The Powertrain Control Module (PCM) monitors the Auxiliary Heater Coolant Pump. The PCM sets the OBDII code when the Auxiliary Heater Coolant Pump is not to factory specifications.