TM 5-2420-231-23-1
0042
Table 1. Brake Lights Do Not Function Correctly - Continued.
042
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 9. Check for Open Circuit
Brake Lights Do Not
in Wiring Harness.
Function Correctly -
Continued
1. Disconnect front console wiring
harness connector (WP 0007, Fig-
ure 5) from front main chassis wir-
ing harness connector (WP 0007,
Figure 6).
2. Disconnect left taillight (WP 0007,
Figure 93) from rear lights wiring
harness connector (WP 0007, Fig-
ure 92).
3. Install a jumper wire between rear
lights wiring harness connector
(WP 0007, Figure 92) terminals 4
and 7 (ground).
4. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between front
Replace front console wiring harness
main chassis wiring harness con-
(WP 0162).
nector (WP 0007, Figure 6) termi-
Proceed to Test Step 11.
nal 7D and machine ground.
Resistance Greater Than 5.0 Ohms -
Resistance should be 5.0 ohms or
Proceed to Test Step 10.
less.
Test Step 10. Check for Open Circuit
in Rear Lights Wiring Harness.
1. Remove rear floor cover plate
(WP 0306).
2. Disconnect main chassis wiring
harness connector (WP 0007, Fig-
ure 87) from rear lights wiring har-
ness connector (WP 0007, Figure
86).
3. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
Replace main chassis wiring harness
sure resistance between rear lights
(WP 0154).
wiring harness connector (WP
Connect front console wiring harness
0007, Figure 86) terminal C and
connector to brake light switch (WP
machine ground. Resistance
0166).
should be 5.0 ohms or less.
Install instrument panel front cover (WP
0174).
Proceed to Test Step 11.
Resistance Greater Than 5.0 Ohms -
Replace rear lights wiring harness
(WP 0184).
Connect front console wiring harness
connector to brake light switch (WP
0166).
Install instrument panel front cover (WP
0174).
Proceed to Test Step 11.
0042-7
