The coolant pump DTC is set on the Thermal Controller (THC) if the following warnings occur repeatedly over a specific time frame.
- THC_w0039_pumpPTLimp is set for 300 seconds or 100 times with less than 30 minutes between each occurrence.
- THC_w0040_pumpPTStop is set for 120 seconds or 10 times with less than 30 minutes between each occurrence.
- THC_w0044_sanityPumpPT is set for 120 seconds or 100 times with less than 30 minutes between each occurrence.
- THC_w0045_pumpPTFaultMax is set for 300 seconds or 100 times with less than 30 minutes between each occurrence.
Diagnose the pump condition by investigating the relevant pump alert article(s) under Possible Causes.