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78 Relay ID

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Old 05-17-2019, 12:35 PM
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BuddyM
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Default 78 Relay ID
This relay? Is behind dash above fuse panel. What is it. In the pic you can see where a pin was but broke off. 4 pins total.

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Old 05-17-2019, 12:52 PM
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Default Defrost relay
Looks like it's the rear defrost relay.
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Old 05-18-2019, 05:25 AM
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hunt4cleanair
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Originally Posted by BuddyM
This relay? Is behind dash above fuse panel. What is it? In the pic you can see where a pin was but broke off. 4 pins total.
The last two digits "62" (GM# 527362) would be my guess...rear window defogger that comes off the dash harness, page 506 of the AIM. Shows the four pins.
Last edited by hunt4cleanair; 05-18-2019 at 05:30 AM.
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