TM 5-2420-231-23-1
0048
Table 1. Front Windshield Washer Does Not Operate - Continued.
048
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
10. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
Front Windshield Washer
Replace front windshield washer pump
sure resistance between terminals
Does Not Operate -
(WP 0338).
of wipers fuse. Resistance should
Continued
Install wipers fuse (TM 5-2420-231-10).
be 5.0 ohms or less.
Proceed to Test Step 10.
Resistance Greater Than 5.0 Ohms -
Proceed to Test Step 9.
Test Step 5. Test for Voltage to the
Front Windshield Washer Pump.
1. Disconnect chassis options wiring
harness connector (WP 0007, Fig-
ure 141) from front windshield
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
front windshield 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 - Release
(WP 0007, Figure 141) terminal 62
front windshield washer switch.
and machine ground. Voltage
Proceed to Test Step 6.
should be 10 to 14 volts.
5. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Replace front
sure voltage between chassis
windshield washer pump (WP 0338).
options wiring harness connector
Proceed to Test Step 10.
(WP 0007, Figure 141) terminals
Voltage Less Than 10 Volts - Replace
62 and 50. Voltage should be 10 to
chassis options wiring harness (WP
14 volts.
0171).
Proceed to Test Step 10.
Test Step 6. Test for Voltage to Front
Windshield Washer Switch.
1. Remove instrument panel front
cover (WP 0174).
2. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Proceed to
sure voltage between front console
Test Step 7.
options wiring harness connector
Voltage Less Than 10 Volts - Proceed
(WP 0007, Figure 133) terminal 2
to step 3.
and machine ground. Voltage
should be 10 to 14 volts.
3. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
0048-8
