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
4. Using digital multimeter
1289-05 Cushion Hitch
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Solenoid Current Below
Proceed to Test Step 5.
between connector J-C8
Normal Continued
Resistance Greater Than 5.0 Ohms
terminal 31 and terminal 45
Replace chassis wiring harness
(WP 0012, Figure 100).
(WP 0305).
Proceed to Test Step 7.
Test Step 5. Test Main Cab Wiring
Harness for High Resistance or
Open.
1. Remove jumper wire from terminal
10 and terminal 35 of connector
J-C3 (WP 0012, Figure 101).
2. Disconnect connector W-C13
(WP 0012, Figure 89) from
transmission/chassis ECM.
3. Connect jumper wire between
terminal 13 and terminal 25
of connector W-C13
(WP 0012, Figure 89).
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Replace transmission/chassis ECM
between connector W-C1
(WP 0495).
terminal 31 and terminal 45
Proceed to Test Step 6.
(WP 0012, Figure 99).
Resistance Greater Than 5.0 Ohms
Replace main cab wiring harness
(WP 0505).
Proceed to Test Step 7.
Test Step 6. Test Arc Suppressor 1
Circuit Function.
1. Disconnect connector C-C4
(WP 0012, Figure 130) from arc
suppressor 1 connector
(WP 0012, Figure 129).
2. Using digital multimeter in diode
Meter Displays OL Proceed to step 3.
test (WP 0540), connect red lead
Meter Displays Resistance Reading
to arc suppressor 1 connector
Replace arc suppressor 1.
terminal 1 (WP 0012, Figure 129).
Proceed to Test Step 7.
Connect black lead to arc
suppressor 1 connector terminal 2
(WP 0012, Figure 129).
3. Using digital multimeter in diode
Meter Displays Resistance Reading
test (WP 0540), connect black lead
Proceed to step 4.
to arc suppressor 1 connector
Meter Displays OL Replace arc
terminal 1 (WP 0012, Figure 129).
suppressor 1.
Connect red lead to arc
Proceed to Test Step 7.
suppressor 1 connector terminal 2
(WP 0012, Figure 129).
0079-7
