TM 5-3805-296-23-2
0089
Table 1. 1631 Brake Air Supply Solenoid Valve Diagnostic Codes Continued.
089
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 2. Test for Shorted Main
1631-06 Brake Air Supply
Cab Wiring Harness.
Solenoid Current Above
1. Turn ignition switch and battery
Normal Continued
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Disconnect connector W-C13
(WP 0012, Figure 89) from
transmission/chassis ECM.
3. Disconnect connector W-C12
(WP 0012, Figure 88) from
transmission/chassis ECM.
4. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), test for continuity
harness (WP 0505).
between connector W-C13
Proceed to Test Step 3.
terminal 17 (WP 0012, Figure 89)
No Continuity Proceed to step 5.
and all other terminals in
connector W-C13
(WP 0012, Figure 89).
5. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), test for continuity
harness (WP 0505).
between connector W-C13
Proceed to Test Step 3.
terminal 17 (WP 0012, Figure 89)
No Continuity Proceed to step 6.
and all terminals in connector
W-C12 (WP 0012, Figure 88).
6. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), test for continuity
harness (WP 0505).
between connector W-C13
Proceed to Test Step 3.
terminal 17 (WP 0012, Figure 89)
No Continuity Replace transmission/
and ground.
chassis ECM (WP 0495).
Proceed to Test Step 3.
Test Step 3. Verify Malfunction is
Resolved.
1. Ensure all harness connectors are
connected.
2. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
3. At MSD, check for active
1631-6 Brake Air Supply Solenoid
diagnostic codes (WP 0008).
Current Above Normal Becomes
Inactive Troubleshooting complete.
1631-6 Brake Air Supply Solenoid
Current Above Normal Remains
Active Repeat troubleshooting from
the beginning.
END OF WORK PACKAGE
0089-6
