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
3. Connect jumper wire between
1631-05 Brake Air Supply
terminal 1 and terminal 2 of
Solenoid Current Below
connector W-C26 (WP 0012,
Normal Continued
Figure 73).
4. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
1631-6 Brake Air Supply Solenoid
5. At MSD, check for active
Current Above Normal Becomes
diagnostic code 1631-5 Brake Air
Active Replace brake air supply
Supply Solenoid Current Below
solenoid (WP 0356).
Normal (WP 0008).
Proceed to Test Step 3.
1631-5 Brake Air Supply Solenoid
Current Below Normal Remains
Active Proceed to Test Step 2.
Test Step 2. Test Main Cab Wiring
Harness for High Resistance or
Open.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Do not remove jumper wire from
terminal 1 and terminal 2 of
connector W-C26
(WP 0012, Figure 73)
3. Disconnect connector W-C13
(WP 0012, Figure 89) from
transmission/chassis ECM.
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Replace transmission/chassis ECM
between connector W-C13
(WP 0495).
terminal 12 and terminal 17
Proceed to Test Step 3.
(WP 0012, Figure 89).
Resistance Greater Than 5.0 Ohms
Replace main cab wiring harness
(WP 0505).
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).
0089-4
