SV1CEC
NAXJA Forum User
- Location
- Athens, Greece
Folks,
I was wondering if anyone knows how the small panic LED works in the fuel gauge.
Last time I had the instrument cluster out of the truck, I checked the gauge and replaced the LED with a new one. From the circuit on the gauge and at the back of my cluster (Type 2 cluster), it looks as if the LED goes on, when it receives a 12 V input from the small circuit board, which is behind the tachometer, inside the cluster. If you apply a 12 V source at that connector at the back of the fuel gauge, the LED goes on.
However, I've never seen the LED go on, even when I let the tank go almost empty, so I wonder where the signal for the LED comes from? Is there something in the sender unit, in the tank, that triggers the LED directly?
Any help on that would be sincerely appreciated.
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John SV1CEC
I was wondering if anyone knows how the small panic LED works in the fuel gauge.
Last time I had the instrument cluster out of the truck, I checked the gauge and replaced the LED with a new one. From the circuit on the gauge and at the back of my cluster (Type 2 cluster), it looks as if the LED goes on, when it receives a 12 V input from the small circuit board, which is behind the tachometer, inside the cluster. If you apply a 12 V source at that connector at the back of the fuel gauge, the LED goes on.
However, I've never seen the LED go on, even when I let the tank go almost empty, so I wonder where the signal for the LED comes from? Is there something in the sender unit, in the tank, that triggers the LED directly?
Any help on that would be sincerely appreciated.
---------
John SV1CEC
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