Table 2. CWS Troubleshooting Procedures - Continued.

TM 9-2320-303-24-1

Table 2. CWS Troubleshooting Procedures - Continued.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Front Antenna Loses or Ignores Detected 1. Confirm radar beam path is Clear radar beam path if

Vehicles within 100 Feet in Front of Host

unobstructed.

obstructed. If radar beam path is

Vehicle.

not obstructed, proceed to next

step.

2. Confirm antenna is secure and If antenna is secure and proper

check alignment (WP 0219 00). alignment is confirmed and fault

still exists, replace CPU (WP 0220

00).

10. Side Sensor Display Does Not Indicate Power, 1. Verify side sensor display If OK, proceed to next step. If

or a Detected Object.

operation.*

NOT OK, replace CPU (WP

0220 00).

2. Check for correct continuity 1. If OK, replace CPU (WP 0220

and supplied voltage readings

00). If NOT OK, replace side

at connector.

sensor (WP 0220 00).

2. If fault still exists, replace CPU

(WP 0220 00).

11. DDU Blinks Out Fault Code 11 (Central

Replace CPU (WP 0220 00)

Processing Unit).

12. DDU Blinks Out Fault Code 13 (Driver's

Replace DDU (WP 0220 00).

Display Unit).

13. DDU Blinks Out Fault Code 14 (Antenna

1. Replace antenna (WP 0220 00).

Assembly).

2. If fault still exists, replace CPU

(WP 0220 00).

14. DDU Blinks Out Fault Code 15 (Right Side 1. While performing side sensor If OK, proceed to next step. If

Sensor).

test, wave hand in front of side NOT OK, replace CPU (WP 0220

sensor and verify that correct 00).

signal is received.*

2. Verify a 5-volt output at side If OK, proceed to next step. If

sensor signal wire at side sensor NOT OK, replace side sensor (WP

connector, with a target 0220 00).

present.

15. DDU Blinks Out Fault Code 21 (Right Turn 1. Confirm operation of exterior If OK, proceed to next step. If

Signal).

turn signals.

NOT OK, replace CPU (WP 0220

00).

2. Confirm operation of turn If OK, proceed to next step. If

signal switch.

NOT OK, replace CPU (WP 0220

00).

3. Check that right turn signal If OK, proceed to next step. If

input is connected to right turn NOT OK, replace CPU (WP 0220

signal lead.

00).

0020 00-5