What is the Solution for Coolant Pump 2 Open Circuit?

1 Answers
ReeseFitz
07/30/25 9:24am
Coolant Pump 2 Open Circuit Solution: 1. First, check whether the small water pump under the wiper cover is damaged. If the small water pump is damaged, replace it; 2. Check the air conditioning control solenoid valve to see if there is an open circuit in the wiring or if the air conditioning control solenoid valve is damaged. The wiring harness is directly connected to the engine computer via a plug without a fuse. Replace the air conditioning control solenoid valve or the wiring harness. Coolant Pump 2 is an auxiliary water pump located not far from the main water pump and is used for continuous heat dissipation after the engine is turned off. Coolant is an indispensable part of a car engine. It circulates in the engine cooling system, carrying away excess heat generated during engine operation, allowing the engine to operate at normal working temperature. When the coolant is insufficient, the engine water temperature will be too high, leading to damage to engine components.
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