TM 5-3805-298-23-2
0132
Table 1. One or Both Stoplights Do Not Operate, Turn Signals Operate Normally - Continued.
0132
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. Using digital multimeter
One or Both Stoplights Do
Voltage 18 to 28 V Replace RH rear
(WP 0174), test for voltage
Not Operate, Turn Signals
tail light (WP 0272).
between connector M-C18
Operate Normally -
Proceed to Test Step 17.
terminal 1 and M-C13 terminal 1
Continued
Voltage Less Than 18 V Proceed to
(ground) (WP 0012, Figure 158).
Test Step 3.
Test Step 3. Test for Faulty Turn
Signal Switch.
1. Turn battery disconnect switch to
OFF position (TM 5-3805-298-10).
2. Remove instrument cluster for
access to wiring harness
connectors (WP 0252).
3. Disconnect connector C-TSS
(WP 0012, Figure 155) from turn
signal switch (WP 0012,
Figure 156).
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Proceed to Test Step 4.
between turn signal switch
Resistance Greater Than 5.0 Ohms
(WP 0012, Figure 156) terminal 4
Replace turn signal switch (WP 0253).
and terminal 5.
Proceed to Test Step 17.
Test Step 4. Test for Open at Rear
Frame Wiring Harness.
1. Remove right lower cab access
panels (WP 0347).
2. Disconnect connector M-C1
(WP 0012, Figure 57) from
connector C-C20 (WP 0012,
Figure 56).
3. Install a jumper wire between M-
C18 (WP 0012, Figure 158)
terminal 1 and M-C13 (WP 0012,
Figure 158) terminal 1.
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Replace lower cab wiring harness
between connector M-C1
(WP 0291).
(WP 0012, Figure 57) terminal 15
Proceed to Test Step 17.
and ground.
Resistance Greater Than 5.0 Ohms
Replace rear frame wiring harness
(WP 0295).
Proceed to Test Step 17.
0132-3
