TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. One or Both Joystick
3. Turn control indicator switch to
RH and/or LH Joystick Illumination
Illumination Lights Do
position SER. DRIVE (TM 5-
Lights Do Not Operate - Repeat
not Operate - Continued
3805-293-10) and verify RH and
troubleshooting from the beginning.
LH joystick illumination lights
RH and LH Joystick Illumination
operate.
Lights Operate - Troubleshooting
complete.
Test Step 3. Check for Open Cab
Lower Wiring Harness.
1. Install fuse F38 on cab fuse panel
(TM 5-3805-293-10).
2. Remove operator's seat (WP
0284).
3. Disconnect the control indicator
harness connector PE-C11 (WP
0009, Figure 287) at RH joystick
support from cab lower wiring har-
ness connector P-C11 (WP 0009,
Figure 286) (WP 0283).
4. Turn battery disconnect switch
and ignition switch to the ON posi-
tion (TM 5-3805-293-10).
5. Use a digital multimeter, test for
Voltage Between 18 and 26 Volts -
voltage between connector P-C11
Proceed to Test Step 4.
(WP 0009, Figure 286) terminals
Voltage Less Than 18 Volts -
1 and machine ground. Voltage
Replace cab lower wiring harness
should be 18 to 26 volts.
(WP 0266).
Connect the cab upper wiring harness
connector R-C50 (WP 0009, Figure
284) to RH joystick illumination light.
Connect the cab upper wiring harness
connector R-C51 (WP 0009, Figure
285) to LH joystick illumination light.
Proceed to step 6.
6. Turn control indicator switch to
RH and/or LH Joystick Illumination
position SER. DRIVE (TM 5-
Lights Do Not Operate - Repeat
3805-293-10) and verify RH and
troubleshooting from the beginning.
LH joystick illumination lights
RH and LH Joystick Illumination
operate.
Lights Operate - Troubleshooting
complete.
Test Step 4. Check for Open Circuit
from Control Indicator Harness.
1. Turn battery disconnect switch to
the OFF position (TM 5-3805-
293-10).
0023-7