TM 5-3805-296-23-2
0079
Table 1. 1289 Cushion Hitch Solenoid Valve Diagnostic Codes.
0079
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
1289-03 Cushion Hitch
Solenoid Voltage Above
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.
DIAGNOSTIC CODE SET CONDITION
Transmission/Chassis ECM Detects Above Normal Voltage on Cushion Hitch
Solenoid Circuit A519.
POSSIBLE CAUSE
Cushion Hitch Wiring Harness Shorted.
Transmission Wiring Harness Shorted.
Chassis Wiring Harness High Shorted.
Main Cab Wiring Harness Shorted.
Transmission/Chassis ECM.
Test Step 1. Test for Shorted
Cushion Hitch Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Disconnect connector C-C2
(WP 0012, Figure 127) from
cushion hitch solenoid connector
(WP 0012, Figure 126).
3. Disconnect connector A-C6
(WP 0012, Figure 134)
from connector C-C1
(WP 0012, Figure 133).
4. Using digital multimeter
Continuity Replace cushion hitch
(WP 0540), test for continuity
wiring harness (WP 0400).
between connector C-C1 terminal
Proceed to Test Step 5.
1 (WP 0012, Figure 133) and all
No Continuity Proceed to Test
other terminals in connector C-C1
Step 2.
(WP 0012, Figure 133).
