August 2013 5-6 P/N 06-236530-001
Table 5-2. Control-Unit-Based-Output Events
Control-Unit-Based-Output Events
Error Message Probable Cause Corrective Action
AR1 Open Circuit Trouble On Open circuit in field wiring connected
to main circuit board TB12
• Look for discontinuity in Release-1
field wiring. Refer to
Paragraph 2-11.
AR1 Short Circuit Trouble On Short circuit in field wiring connected
to main circuit board TB12
• Troubleshoot Release-1 wiring by
breaking-up circuit to isolate short
circuit to specific leg.
AR2 Open Circuit Trouble On Open circuit in field wiring connected
to main circuit board TB11
• Look for discontinuity in Release-2
field wiring. Refer to
Paragraph 2-11.
AR2 Short Circuit Trouble On Short circuit in field wiring connected
to main circuit board TB11
• Troubleshoot Release-2 wiring by
breaking-up circuit to isolate short
circuit to specific leg.
AR3 Open Circuit Trouble On Open circuit in field wiring connected
to main circuit board TB7. Combo-1
Circuit is configured as a release
circuit.
• Look for discontinuity in Combo-1
field wiring. Refer to
Paragraph 2-10.2.
AR3 Short Circuit Trouble On Short circuit in field wiring connected
to main circuit board TB7. Combo-1
Circuit is configured as a release
circuit.
• Troubleshoot Combo-1 wiring by
breaking-up circuit to isolate short
circuit to specific leg.
AR4 Open Circuit Trouble On Open circuit in field wiring connected
to main circuit board TB6. Combo-2
Circuit is configured as a release
circuit.
• Look for discontinuity in Combo-2
field wiring. Refer to
Paragraph 2-10.2.
AR4 Short Circuit Trouble On Short circuit in field wiring connected
to main circuit board TB6. Combo-2
Circuit is configured as a release
circuit.
• Troubleshoot Combo-2 wiring by
breaking-up circuit to isolate short
circuit to specific leg.
SG1 Open Circuit Trouble On Open circuit in field wiring connected
to main circuit board TB5
• Check for missing 10k end-of-line
resistor.
• Look for discontinuity in NAC1 field
wiring.
SG1 Short Circuit Trouble On Short circuit in field wiring connected
to main circuit board TB5
• Troubleshoot NAC1 wiring by
breaking-up circuit to isolate short
circuit to specific leg.
SG2 Open Circuit Trouble On Open circuit in field wiring connected
to main circuit board TB14
• Check for missing 10k end-of-line
resistor.
• Look for discontinuity in NAC2 field
wiring.
SG2 Short Circuit Trouble On Open circuit in field wiring connected
to main circuit board TB14
• Troubleshoot NAC2 wiring by
breaking-up circuit to isolate short
circuit to specific leg.
SG3 Open Circuit Trouble On Open circuit in field wiring connected
to main circuit board TB7. Combo-1
Circuit is configured as a NAC.
• Check for missing 10k end-of-line
resistor.
• Look for discontinuity in Combo-1
field wiring.
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