TM 9-2320-302-20 0018 00-5 Table 2. CWS Troubleshooting Procedures - Continued. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 12.   DDU   Blinks   Out   Fault   Code   13   (Driver’s Display Unit). Replace DDU (WP 0111 00). 13.   DDU  Blinks  Out  Fault  Code  14  (Antenna Assembly). 1.  Replace antenna (WP 0111 00). 2.  If fault still exists, replace CPU (WP 0111 00). 14.   DDU  Blinks  Out  Fault  Code  15  (Right  Side Sensor). 1.  While  performing  side  sensor test, wave hand in front of side sensor  and  verify  that  correct signal is received.* If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 2.  Verify  a  5-volt  output  at  side sensor signal wire at side sensor connector, with a target present. If  OK,  proceed  to  next  step.  If NOT OK, replace side sensor (WP 0111 00). 15.   DDU Blinks Out Fault Code 21 (Right Turn Signal). 1.  Confirm  operation  of  exterior turn signals. If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 2.  Confirm operation of turn signal switch. If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 3.  Check   that   right   turn   signal input is connected to right turn signal lead. If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 4.  Perform    turn    signal    test    to confirm correct input is received when right turn signal is activated.* If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 5.  Verify  pin  number  15,  on  top row of main harness connector, receives   12   volts   when   right signal is activated. If  OK,  notify  supervisor.  If  NOT OK, replace connector (WP 0119 00). 16.   DDU Blinks Out Fault Code 23 (Brake). 1.  Confirm brake source is correctly configured in CPU.* If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 2.  Confirm  operation  of  exterior brake lights. If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 3.  Confirm    operation    of    brake switch. If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 4.  Perform brake test and confirm correct signal is received when brake pedal is depressed.* If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 5.  Confirm brake logic is correctly configured.* If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor. 6.  Confirm   brake   input   wire   is connected to proper source. If  OK,  proceed  to  next  step.  If NOT OK, notify supervisor.