Sensor Input Voltage Low CCB3 (3REC-C2)
electrical
Description
Sensor input voltage on CCB3 is below 4.5V, and the unit sounds an alarm only.
Activation Conditions
The Voltage Supply for the Sensors on the CCB3 is below the low voltage limit 4.5V.
Unit Behavior
Engine and Electric Operation: Alarm Only.
Reset Conditions
The Voltage Supply for Sensors on CCB3 is above the low voltage limit 4.5V
Corrective Actions
1. Check for additional CCB3 / CCB4 and STP3 / STP4 alarms Alarms for CCB3 and CCB4 indicate a problem before CCB3 or at CCB3. Alarms isolated to CCB3 indicate a problem before CCB3 or at CCB3. Alarms isolated to CCB4 indicate a problem between CCB3 and CCB4, or at CCB4. Stepper Alarms isolated to STP3 or STP4 indicate a problem with the associated CCB. 2. Check the Compartment EVOP Pull the EVOP connector. Clear alarms, then check for repeat alarm(s). If alarm is not repeated, it indicates the EVOP is faulted. Check voltage. Check for 5V at EVOP between pins 1 - 2. If 5V is present, it indicates a faulted CCB. Check wiring between 3REC and EVOP. No physical damage to harness. No damage, moisture, or corrosion in connectors.