Sensor Input Voltage High CCB4

Sensor input voltage on CCB4 board detected above the maximum limit.

Possible causes

Alternator / voltage regulator failure
Moisture in connectors
Sensor harness wires touching 12V lines
Board calibration error

Recommended actions

Measure alternator output voltage
Dry and clean sensor connectors
Check for short circuits between harness wires
Replace suspect sensor if voltage normalizes when disconnected

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