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Old 10-17-2016, 12:54 PM   #21
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Okay if your having this problem the first thing todo is is swap out your cooling fan relay with your
nts (nighttimesystem) relay
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Old 10-17-2016, 12:57 PM   #22
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It's a relay marked la10 the cooling fan relay is located in fuse box under the hood and the nts relay is located on drivers side close too the fire wall in a plastic housing along with 2 other relays
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Old 10-20-2016, 12:06 AM   #23
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With your recorded readings.

Do you have 12V between ground and the White/Red wire from the BTN fuse (Main fusebox, right rear corner of engine bay). If no, check BTN fuse. If Yes, then

Do you have 12V between ground and the White/Blue wire leaving the TNS relay (left rear of engine compartment) with the lights switch on. If No, connect the light green wire from the TNS relay to ground and recheck. If still no, check for 12V between ground and both of the White/Red wire entering the TNS relay. If you have 12V on these two and nothing on the White/Blue with the light green connected to ground, your TNS relay is bad. If you have 12V on the White/Blue then

Do you have 12V between ground and the Red/Black wire leaving the Tail fuse with the lights switch on. If no, do you have 12V on the White/Blue wire entering the Tail Fuse. If no then you have a break in the White/Blue wire. If yes then you have a bad fuse or fuse holder. If you have 12V on the Red/Black wire where it leaves the fuse then you have a break in the Red/Black wire somewhere downstream.
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