TROUBLESHOOTING AND ELECTRICAL
SYSTEM: GASOLINE VEHICLES
Test Procedures
11
V
V
2102
Figure 11-34
Bed Lift Motor Voltage Reading with Switch
in UP position
2103
Figure 11-35
Bed Lift Motor Voltage Reading with Switch
in DOWN position
TEST PROCEDURE 35 – Bed Lift Motor
NOTE:
Keep the battery connected during this test procedure.
Ensure that the battery is fully-charged before performing this test procedure.
1.
Disable the vehicle.
See Disabling the Vehicle on page 1-3.
2.
Disconnect the red and yellow wires from the bed lift motor
.
3.
Set a multimeter for 20 VDC.
4.
Place the red probe in the bullet connector on the red wire (wire harness side) and place the black probe in the
bullet connector on the black wire (wire harness side)
5.
Have an assistant press the bed lift switch on the instrument panel in the UP position and monitor the multimeter:
– A reading of approxi (positive) 12 VDC indicates that the bed lift harness and switch are wired
correctly. Proceed to step 6.
– A reading of approximately – (negative) 12 VDC indicates that the bed lift harness or switch are wired
incorrectly. Check the wiring of the bed lift harness and bed lift switch.
See Wiring Diagram on page 11-6.
– A reading of approximately 0 VDC indicates a failed bed lift switch, failed bed lift circuit breaker, a poor
connection in the bed lift wire harness, or a broken wire.
6.
Place the red probe in the bullet connector on the red wire (wire harness side) and place the black probe in the
bullet connector on the black wire (wire harness side)
7.
Have an assistant press the bed lift switch on the instrument panel in the DOWN position and monitor the
multimeter:
– A reading of approximately – (negative) 12 VDC indicates that the bed lift harness and switch are wired
correctly. Proceed to step 8.
– A reading of approxi (positive) 12 VDC indicates that the bed lift harness or switch are wired incorrectly.
Check the wiring of the bed lift harness and bed lift switch.
See Wiring Diagram on page 11-6.
– A reading of approximately 0 VDC indicates a failed bed lift switch, failed bed lift circuit breaker, a poor
connection in the bed lift wire harness, or a broken wire.
8.
If the bed lift motor does not function and the readings obtained in the previous steps are correct, the bed lift
motor has failed and must be replaced.
See Bed Lift Motor Removal, Section 4, Page 4-11.
2016 Carryall 1500/1700 and XRT 1550 Maintenance and Service Manual
Page 11-39
Summary of Contents for Carryall 1500 2016
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