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P15D0 – All makes

Code : P15D0
Make : All makes
Description : P15D0 Coolant Pump RPM Out of Range
Possible causes :
– Low Coolant Level
– Air in the coolant system
– Faulty Water Pump
– Water Pump harness is open or shorted
– Water Pump circuit poor electrical connection
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.

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