C-Bit - BENDIXKing XVUE TOUCH Installation Manual

Symptom
"APM Configuration
Mismatch Error" on
Screen
"APM BACKUP FAULT"
Displayed
"APM MODULE
DETECTION FAULT"
Displayed
"APM MODULE
CONFIGURATION DATA
FAULT" Displayed
"PILOT
CONFIGURATION
FAULT" Displayed
"LIGHT SENSOR FAULT
MANUAL DIM REQ"
Display
NOTE 1: For directions how to retrieve the Event Log, refer to Section 6.3.1.

8.1.2 C-BIT

Continuous Built-in-Tests (C-BIT) run continuously as a background task checking important functional
capability during normal operation. If the CBIT detects a fault, the appropriate annunciation will be
displayed.
The following PBITs are performed:
• Heartbeat Monitor
• Over-Temperature Monitor
• Loopback Monitor
89000109-002
Rev 2
© Honeywell International Inc. Do not copy without express permission of Honeywell.
For Use in Non-Certified Aircraft
Table 8-2 P-BIT Failures Troubleshooting Chart
Fault Recorded
(NOTE 1)
"APM Backup module /
APM module mismatch"
"PBIT APM Backup Fault"
"PBIT APM Module
Detection Fault"
"PBIT APM Module
Configuration Data
Fault"
"PBIT Pilot Configuration
Fault"
"PBIT Light Sensor
Communication Fault"
Causes
The Configuration Data
Stored in KSD 100EXP
and Configuration
Module Differ
The Backup
Configuration Data is
unavailable
Loss of Communication
with Configuration
Module
Configuration Module
Defective
Configuration Module
Defective
Pilot Stored
Configuration Data Has
Been Lost
Loss of Communication
with Ambient Light
Sensor
xVue Touch Installation Manual
Corrective Action
• Reset Configuration
Data in Configuration
Module
• Reset KSD 100EXP
• If fault persists,
replace KSD 100EXP
• Check that Configura-
tion Module is
installed and wired
properly
• Replace Configura-
tion Module
• Check that Configura-
tion Module is
installed and wired
properly
• Reset Configuration
Data in Configuration
Module. If fault per-
sists, replace Configu-
ration Module
• Replace KSD 100EXP
• Revert dimming con-
trol to manual opera-
tion
• Reset KSD 100EXP
• If fault persists,
replace KSD 100EXP
Page 8-5