Table 1. Cab Electrical Troubleshooting Procedures - Continued.
TEST OR INSPECTION
N OT E
7. Front Right Turn Signal
Does Not Operate
Always inspect the harness connectorsthat are involved in the circuit.
Poor connections can often be the cause of a problem in an electrical
circuit. Verify that all connections in the circuit are clean and secure,
and that all connections are in good condition. If a problem with a con-
nection is found, correct the problem and verify that this diagnostic code
is Active before performing this procedure.
Perform open or short circuit test ateach harness connection to identify
correct harness to replace.
Perform this test only if condition is active.
Test Step 1. Check for Faulty Front
Right Turn Signal Bulb Assembly.
1. Turn control indicator switch to
position SER. DRIVE (TM 5-
2. Turn the turn signal switch (TM 5-
3805-293-10) to the right turn sig-
3. Disconnect the connector AZ-C4
(WP 0009, Figure 390) from right
turn signal (WP 0197).
4. Turn battery disconnect switch
and ignition switch to the ON posi-
tion (TM 5-3805-293-10).
Voltage Pulsing and Peaks
voltage between connector AZ-C4
Between 18 and 26 Volts - Replace
(WP 0009, Figure 390) terminal 1
front right signal bulb assembly (WP
and terminal 2 (Gnd). Voltage
should be pulsing 18 to 26 volts.
Proceed to step 6.
Voltage Less Than 18 Volts - Pro-
ceed to Test Step 2.
6. Turn control indicator switch to
Front Right Turn Signal Does Not
position SER. DRIVE, turn signal
Operate - Repeat troubleshooting
switch (TM 5-3805-293-10) to the
from the beginning.
right turn signal position and verify
Front Right Turn Signal Operates -
front right turn signal operates.
Test Step 2. Check for Faulty Front
Right Turn Signal Wiring.
1. Turn ignition switch and battery
disconnect switch to the OFF
position (TM 5-3805-293-10).
2. Disconnect the connector AA-C2
(WP 0009, Figure 291) from right
head lamp assembly.