TM 9-2320-302-20
0018 00-6
END OF WORK PACKAGE
Table 2. CWS Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
16. DDU Blinks Out Fault Code 23 (Brake) -
Continued.
7. Verify pin number 9, on top
row of main harness connector,
receives 12 volts when brake is
applied.
Notify supervisor.
17. DDU Blinks Out Fault Code 24 (Speed).
1. Confirm that SPEEDO BIT
setting is correcting configured
in CPU.*
If OK, proceed to next step. If
NOT OK, notify supervisor.
2. Confirm
speed
mode
is
correctly configured.*
If OK, proceed to next step. If
NOT OK, notify supervisor.
3. Perform speedometer test to
confirm speedometer accuracy
against vehicle speed.*
Notify supervisor.
18. DDU Blinks Out Fault Code 31 (J1587).
Confirm proper connection of
J1587 wires at pin #7 positive and
pin #8 negative on top row of CPU
connector.
If OK, notify supervisor. If NOT
OK, replace connector (WP
0119 00).
19. DDU Blinks Out Fault Code 32 (J1939).
Confirm proper connection of
J1939 wires at pin #7 positive and
pin #8 negative on bottom row of
CPU connector.
If OK, notify supervisor. If NOT
OK, replace connector (WP
0119 00).
20. DDU Blinks Out Fault Code 33 (VBUS).
Check connection of J1587 wires
to vehicle harness.
If OK, notify supervisor. If NOT
OK, replace connector (WP
0119 00).
21. DDU Blinks Out Fault Code 34 (DDU
Communications).
Check connection of J1587 wires
to vehicle harness.
If OK, notify supervisor. If NOT
OK, replace connector (WP
0119 00).
22. DDU Blinks Out Fault Code 35 (Antenna
Assembly Communications).
Check connection of J1587 wires
to vehicle harness.
If OK, notify supervisor. If NOT
OK, replace connector (WP
0119 00).
