TM 5-2420-231-23-1
0061
Table 1. 4-Wheel Drive (4WD) Does Not Engage - Continued.
061
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4-Wheel Drive (4WD) Does
Test Step 7. Test Side Console
Not Engage - Continued
Wiring Harness 4WD Input Circuit for
an Open.
1. Remove front instrument panel
right-side cover (WP 0176) and
disconnect side console wiring
harness connector (WP 0007, Fig-
ure 24) from main chassis wiring
harness connector (WP 0007, Fig-
ure 25) (WP 0170).
2. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between side con-
Proceed to Test Step 8.
sole wiring harness connector
Resistance Greater Than 5.0 Ohms -
(WP 0007, Figure 198) terminal 1
Replace side console wiring harness
and side console wiring harness
(WP 0170).
connector (WP 0007, Figure 24)
Install 4WD fuse (TM 5-2420-231-10).
terminal 6E. Resistance should be
Proceed to Test Step 22.
5.0 ohms or less.
Test Step 8. Test Main Chassis
Wiring Harness 4WD Input Circuit for
an Open.
1. Remove front floor cover plate
(WP 0306).
2. Disconnect 4WD jumper harness
(WP 0007, Figure 121) from main
chassis wiring harness (WP 0007,
Figure 120) (WP 0156).
3. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between main
Proceed to Test Step 9.
chassis wiring harness connector
Resistance Greater Than 5.0 Ohms -
(WP 0007, Figure 25) terminals 6E
Connect side console wiring harness
and main chassis wiring harness
(Figure 6, Item 4) (WP 0007, Figure
connector (WP 0007, Figure 120)
198) to 4WD switch (Figure 6, Item 3)
terminal 1. Resistance should be
(WP 0007, Figure 199).
5.0 ohms or less.
Position bezel (Figure 6, Item 2) on side
console (Figure 6, Item 1) and install to
screws (Figure 6, Item 5).
Replace main chassis wiring harness
(WP 0154).
Install 4WD fuse (TM 5-2420-231-10).
Proceed to Test Step 22.
Test Step 9. Test 4WD Jumper
Harness 4WD Input Circuit for an
Open.
1. Disconnect 4WD jumper harness
(WP 0007, Figure 122) from pow-
ershift wiring harness (WP 0007,
Figure 123) (WP 0156).
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