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Gauge-Temperature-Repair
From MS4X Wiki
If your Gauge Cluster is showing 50 Celsius as temperature, you can try the following fixxes:
1. Check if R1 and R2 have correct Ohm Values with your multimeter. Replace if they are not. Small tolerances(10-20%) are okey.
2. Check if Temp VCC is connected to R1 and R2 correctly. If broken, do a fly wire to connect them correctly
3. Check if Temp-GND Pin is connected to Ground. If not, apply fix like in Picture