TM 9-2320-302-20 0018 00-4 Table 2. CWS Troubleshooting Procedures - Continued. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 4.  Side   Sensor   Warning   Tone   Audible   When Brakes Are Applied - Continued. 2.  Verify   turn   signal   setting   is correctly configured in CPU.* If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 3.  Perform   turn   signal   test   and confirm receipt of correct signal    when    turn    signal    is applied.* If  OK,  notify  supervisor.  If  NOT OK, replace DDU (WP 0111 00). 5.  Volume Knob Does Not Reduce Volume. 1.  Verify   MIN   VOL   setting   is zero.* If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 2.  Perform DDU test and confirm proper    operation    of    volume knob.* If  OK,  notify  supervisor.  If  NOT OK, replace DDU (WP 0111 00). 6.  Range Knob Does Not Change Alert Levels. 1.  Verify RANGE ENABLE configuration is ON.* If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 2.  Perform DDU test and confirm proper operation of range knob.* If  OK,  notify  supervisor.  If  NOT OK, replace DDU (WP 0111 00). 7.  Front Antenna Detects Vehicles in an Adjacent Lane With No Vehicle in Front of Host Vehicle. Confirm  antenna  alignment  (WP 0110 00). If proper alignment is confirmed and fault still exists, notify supervisor. 8.  Front Antenna Detects Vehicle in Both Left and Right   Adjacent   Lanes,   With   No   Vehicle   in Front of Host Vehicle. 1.  Confirm antenna minimum height requirement or above. If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 2.  Confirm antenna is secured to mounting. Tighten antenna if necessary (WP 0111 00). 3.  Confirm   radar   beam   path   is unobstructed. Clear radar beam path if obstructed.  If  radar  beam  path  is not obstructed, notify supervisor. 9.  Front   Antenna   Loses   or   Ignores   Detected Vehicles   Within   100   Feet   in   Front   of   Host Vehicle. 1.  Confirm antenna minimum height requirement or above. If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 2.  Confirm antenna is secured to mounting. Tighten antenna as necessary (WP 0111 00). 3.  Confirm   radar   beam   path   is unobstructed. Clear radar beam path if obstructed.  If  radar  beam  path  is not obstructed, notify supervisor. 10.   Side Sensor Display Does Not Indicate Power, or a Detected Object. 1.  Verify side sensor display operation.* If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 2.  Check   for   correct   continuity and  supplied  voltage  readings at connector. 1.  If   OK,   notify   supervisor.   If NOT  OK,  replace  side  sensor (WP 0111 00). 2.  If fault still exists, replace CPU (WP 0111 00). 11.   DDU   Blinks   Out   Fault   Code   11   (Central Processing Unit). Replace CPU (WP 0111 00).