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RIP, Lead Technician
Category: Car
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Experience:  A.S.E. Master Technician, Advanced Level, Smog - European, Domestic, & Asian -- Car Category Mentor
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Grand cherokee: problem is heater stays on when ignition is turned

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i have a 1997 4.L grand cheroke auto. problem is heater stays on when ignition is turned off even if you turn heater off. i cant find the relay to check if working properly or is there another problem?

Hi, welcome to Just Answer.

Sounds like you have a typical shorted blower motor resistor pack. Below is the location next to the blower motor under the passenger side of the dash. The resistors short out and cause the blower motor to continuously run on.



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