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1.6 td temperature light flashing
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Topic: 1.6 td temperature light flashing (Read 2972 times)
October 11, 2022, 01:07:58 pm
33B
Junior
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58
Personal Text
Bosnian with a money pit aka VW Passat 1987
1.6 td temperature light flashing
«
on:
October 11, 2022, 01:07:58 pm »
It started yesterday. It seems to start flashing when the car is almost fully heated up. Will not do it cold. It comes on when you turn on the highbeams. It stops when you turn off the headlights or disconnect the temperature sender unit. Also only turning on the left indicator somewhat helps with turning off the light. Disconnecting relay 43 does nothing, cleaned and checked grounds on the crown.
Everything will be clear in the video. Thanks
https://youtu.be/wNrM8EMnDaM
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1987 Passat B2 (33B)- 1.6TD JR, Audi 80 b4 front suspension and power steering. 280mm brake discs with 54mm calipers front. Rear MK3 disc setup with golf mk5 calipers.
Reply #1
October 11, 2022, 03:58:50 pm
fatmobile
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2787
Re: 1.6 td temperature light flashing
«
Reply #1 on:
October 11, 2022, 03:58:50 pm »
That light is also the low coolant warning light.
So check to see if there is voltage on the coolant reservoir level sensor ground wire.
If there is voltage on a ground wire, it isn't grounded.
«
Last Edit: October 11, 2022, 04:01:56 pm by fatmobile
»
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Tornado red, '91 Golf 4 door,
with a re-ringed, '84 quantum, turbo diesel, MD block
Reply #2
October 11, 2022, 05:46:54 pm
33B
Junior
Offline
58
Personal Text
Bosnian with a money pit aka VW Passat 1987
Re: 1.6 td temperature light flashing
«
Reply #2 on:
October 11, 2022, 05:46:54 pm »
Yeah, I checked that. No problems at all. That system is working fine. When it loses ground it starts blinking and doesn't reset until you turn off the car. This is something related to the temp sender unit/head lights for some reason. Could it be a bad headlight ground? And what is causing the oil light to be dimmly coming on, also a ground issue?
More info, my headlights are dimming with turn signals on.
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1987 Passat B2 (33B)- 1.6TD JR, Audi 80 b4 front suspension and power steering. 280mm brake discs with 54mm calipers front. Rear MK3 disc setup with golf mk5 calipers.
Reply #3
October 11, 2022, 09:05:23 pm
fatmobile
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2787
Re: 1.6 td temperature light flashing
«
Reply #3 on:
October 11, 2022, 09:05:23 pm »
I'd check the headlight ground with all that going on.
Grounds are a common problem and often overlooked.
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Tornado red, '91 Golf 4 door,
with a re-ringed, '84 quantum, turbo diesel, MD block
Reply #4
October 17, 2022, 08:43:40 am
33B
Junior
Offline
58
Personal Text
Bosnian with a money pit aka VW Passat 1987
Re: 1.6 td temperature light flashing
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Reply #4 on:
October 17, 2022, 08:43:40 am »
Bad h4 led bulb. Works fine but its causing this issue. Swapped bulbs now its fine.
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1987 Passat B2 (33B)- 1.6TD JR, Audi 80 b4 front suspension and power steering. 280mm brake discs with 54mm calipers front. Rear MK3 disc setup with golf mk5 calipers.
Reply #5
October 17, 2022, 08:49:31 pm
fatmobile
Veteran
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2787
Re: 1.6 td temperature light flashing
«
Reply #5 on:
October 17, 2022, 08:49:31 pm »
Thanks for the update.
LEDs are supposed to be high quality, haha.
Logged
Tornado red, '91 Golf 4 door,
with a re-ringed, '84 quantum, turbo diesel, MD block
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1.6 td temperature light flashing