Sensor Supply Voltage 1 Low ENCU

The internal 5V sensor supply voltage in the ENCU is low.

Possible causes

Shorted sensor draining voltage
Damaged sensor harness
Defective ENCU internal regulator
Moisture in sensor connectors

Recommended actions

Disconnect sensors one by one to find short
Measure 5V output on reference wires
Check continuity to ground on signal lines
Replace ENCU if voltage remains low without sensors

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