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sprinkles08, ASE Certified Technician
Category: Hyundai
Satisfied Customers: 23112
Experience:  ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
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The rear door sensor light comes on intermitantly causing

Customer Question

the rear door sensor light comes on intermitantly causing the alarm to come on when doors locked. Hyundai replace something in the door but it did not cure it
Submitted: 1 year ago.
Category: Hyundai
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

If the ajar light is coming on and alarm is going off then the problem may be with the door not closing properly, a bad ajar switch, or the ajar switch circuit could be shorting to ground somewhere in the harness. A wiring issue isn't as likely, especially since it's also happening when parked.

Do you have the part number of what was replaced?

Customer: replied 1 year ago.
Rear door actuator 95750-2B000
Expert:  sprinkles08 replied 1 year ago.

That's a power lock actuator and wouldn't be related to the problem you're having. What year and model is the vehicle?

Customer: replied 1 year ago.
2010 Gls
Customer: replied 1 year ago.
Santa Fe
Expert:  sprinkles08 replied 1 year ago.

Is the issue with a rear door or is it actually the liftgate?

Customer: replied 1 year ago.
Expert:  sprinkles08 replied 1 year ago.

The doors use a separate ajar switch but one isn't listed in the service information for the liftgate. Do you see an ajar switch in the opening when the liftgate is opened?

Customer: replied 1 year ago.
Customer: replied 1 year ago.
Light seperate from doors showing the liftgate
Customer: replied 1 year ago.
On the dash display.
Expert:  sprinkles08 replied 1 year ago.

What you're looking for is the switch itself in the door jam with it open.

Customer: replied 1 year ago.
All I see is the standard latching mechanism on the liftgate and the floor. The lifgate door panel is covering anything else
Expert:  sprinkles08 replied 1 year ago.

The ajar switch is integral to the latch then if there isn't a separate switch in the jamb.