Unusual low readings, factory water temp & gas level gauges
#1
Unusual low readings, factory water temp & gas level gauges
Trying to diagnose an issue for a friend of mine for his S4 Vert.
His gas gauge and water temp gauge read unusually low. These unusual low reading started over a year ago. Now on a full tank the gas gauge barely gets over 3/4 and the temp gauge barely gets above the first marking when fully warmed up.
We thought the temp reading might be as a result of a Thermostat stuck wide open. But after replacing it the gauge still behaved the same.
I know they are both part of one module as we've swapped in several different modules. But all behave the same.
Should we be checking the grounding connection of that module to the gauge cluster circuit board? Other ideas or suggestions to check out?
Thanks
His gas gauge and water temp gauge read unusually low. These unusual low reading started over a year ago. Now on a full tank the gas gauge barely gets over 3/4 and the temp gauge barely gets above the first marking when fully warmed up.
We thought the temp reading might be as a result of a Thermostat stuck wide open. But after replacing it the gauge still behaved the same.
I know they are both part of one module as we've swapped in several different modules. But all behave the same.
Should we be checking the grounding connection of that module to the gauge cluster circuit board? Other ideas or suggestions to check out?
Thanks
Last edited by Tui; 01-13-14 at 09:26 PM.
#5
Following up, absolutely nothing physically looked wrong with the faulty cluster. No burn marks and no cracks on the circuit board, connections on the plugs were clean and solid, etc. Swapped out gauge modules from a used cluster, same problem. Checked resistance at key points that power the gauge modules, all checked out.
So we went ahead and replaced the cluster with entire used one, and that fixed the problem. So cause of the problem remains unknown but problem solved.
So we went ahead and replaced the cluster with entire used one, and that fixed the problem. So cause of the problem remains unknown but problem solved.
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