AL54 Primary Supply Sensor (STS)

Cause

• Invalid Supply Temperature Sensor (STS) reading.

Components	Troubleshooting	Corrective actions
Supply Temperature Sensor (STS)	Perform Pre-trip P5:	If P5 passes, no further action is required.
		If P5 fails, replace the defective sensor as determined by P5, refer to TEMPERATURE SENSOR Service Section 6.24.