TM 5-3805-296-23-2
0079
Table 1. 1289 Cushion Hitch Solenoid Valve Diagnostic Codes Continued.
079
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
3. Using digital multimeter
1289-03 Cushion Hitch
Continuity Replace main cab wiring
(WP 0540), test for continuity
Solenoid Voltage Above
harness (WP 0505).
between connector W-C1
Normal Continued
Proceed to Test Step 5.
terminal 31 (WP 0012, Figure 99)
No Continuity Proceed to step 4.
and all other terminals
in connector W-C1
(WP 0012, Figure 99).
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 5.
terminal 25 (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 5.
terminal 25 (WP 0012, Figure 89)
No Continuity Replace transmission/
and all terminals in connector
chassis ECM (WP 0495).
W-C12 (WP 0012, Figure 88).
Proceed to Test Step 5.
Test Step 5. 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
1289-3 Cushion Hitch Solenoid
diagnostic codes (WP 0008).
Voltage Above Normal Becomes
Inactive Troubleshooting complete.
1289-3 Cushion Hitch Solenoid
Voltage Above Normal Remains
Active Repeat troubleshooting from
the beginning.
NOTE
1289-05 Cushion Hitch
Solenoid Current Below
Always inspect harness connectors that are involved in the circuit. Poor
Normal
connections can often be the cause of a problem in an electrical circuit.
Verify that all connections in the circuit are clean and secure and that all
connections are in good condition. If a problem with the connection is
found, correct the problem and verify that this malfunction or diagnostic
code is active before performing this procedure.
Perform open or short-circuit test at each harness connection to identify
the correct harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
0079-4
