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/ CAT 3126B Fault Code: 41-03 PID: Flash Code 21 SPN: 678 FMI: 3 8 Volt Supply Above Normal
CAT 3126B Fault Code: 41-03 PID: Flash Code 21 SPN: 678 FMI: 3 8 Volt Supply Above Normal
The ECM is not receiving a correct throttle signal
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