TM 5-2420-231-23-1
0050
Table 1. Rear Window Washer Does Not Operate - Continued.
050
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. Remove wipers fuse (TM 5-2420-
Rear Window Washer Does
231-10).
Not Operate - Continued
10. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
Replace rear window washer pump
sure resistance between terminals
(WP 0338).
of wipers fuse. Resistance should
Install wipers fuse (TM 5-2420-231-10).
be 5.0 ohms or less.
Proceed to Test Step 11.
Resistance Greater Than 5.0 Ohms -
Proceed to Test Step 10.
Test Step 5. Test for Voltage to the
Rear Window Washer Pump.
1. Disconnect chassis options wiring
harness connector (WP 0007, Fig-
ure 142) from rear window washer
pump.
2. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
3. Have an assistant press and hold
rear window washer switch (TM 5-
2420-231-10).
4. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Proceed to
sure voltage between chassis
step 5.
options wiring harness connector
Voltage Less Than 10 Volts - Proceed
(WP 0007, Figure 142) terminal 65
to Test Step 6.
and machine ground. Voltage
should be 10 to 14 volts.
5. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Replace rear
sure voltage between chassis
window washer pump (WP 0338).
options wiring harness connector
Proceed to Test Step 11.
(WP 0007, Figure 142) terminals
Voltage Less Than 10 Volts - Replace
65 and 50. Voltage should be 10 to
chassis options wiring harness (WP
14 volts.
0171).
Proceed to Test Step 11.
Test Step 6. Test for Voltage to Rear
Window Washer Switch.
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Remove screw (Figure 7, Item 1)
from rear instrument bezel (Figure
7, Item 3).
3. Pull rear instrument bezel (Figure
7, Item 3) from rear instrument
panel right-side cover (Figure 7,
Item 4) (WP 0172).
0050-8
