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
2. Remove operator's seat (WP
Illumination Lights Do
0284).
not Operate - Continued
3. Verify that control indicator switch
is in position SER. DRIVE position
(TM 5-3805-293-10).
4. Using digital multimeter, measure
Resistance Less Than 5.0 Ohms -
resistance between control indica-
Proceed to Test Step 6.
tor harness connector PE-C11
Resistance 5.0 Ohms or Greater -
(WP 0009, Figure 287) terminal 1
Proceed to Test Step 5.
and 7. Resistance should be less
than 5.0 ohms.
Test Step 5. Check for Open Con-
trol Indicator Switch.
1. Disconnect the control indicator
harness connector PE-C10 (WP
0009, Figure 288) from control
indicator switch (WP 0009, Figure
289).
2. Using digital multimeter, measure
Resistance Less Than 5.0 Ohms -
resistance between control indica-
Replace control indicator harness
tor switch (WP 0009, Figure 289)
(WP 0283).
terminal F and H. Resistance
Connect the cab upper wiring harness
should be less than 5.0 ohms.
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 3.
Resistance 5.0 Ohms or Greater -
Replace control indicator switch (WP
0283).
Connect the control indicator harness
connector PE-C11 (WP 0009, Figure
287) to cab lower wiring harness con-
nector P-C11 (WP 0009, Figure 286)
(WP 0283).
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 3.
0023-8
