no brake lights or turn signal, RELATED ?

[Starlight]

Hey guys, is there possibly a connection between not having brake lights and turn signals.It's not the fuses. Thanks , T

 

[CARNAC]

1. Do the back up lights work?
2. Do the headlights work?
3. Do the 4 way flashers work?
4. Do the parking lights work?

Here is the trouble shooting info from the -20
31. BACK-UP LIGHT (ONE OR BOTH) WILL NOT TURN OFF
Step 1. Disconnect lead from back-up light switch.
If lights go out, replace switch. (See paragraph 4-19)
If lights do not go out, trace circuit. (See wiring diagram
32. BACK-UP LIGHTS (BOTH) INOPERATIVE
Step 1. Check 30 amp back-up light fuse. (See paragraph 4-12)
Replace fuse if burned out.
F-14, F-15, or F-17)
Step 2. Ensure that all lead connectors are secure at back-up light switch and at back-up
lights. Inspect connections for corrosion or damage.
Clean any corroded connections if possible. If connections are damaged,
replace.
If all connections are secure and there is no damage, check bulbs. (See
paragraph 4-28 or 4-29)
2-71
TM 9-2320-289-20
Table 2-4. Electrical Troubleshooting (Con’t)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 3. Disconnect lead from back-up light switch. Using jumper wire, connect terminals of
wiring harness lead.
If lights turn on, replace switch. (See paragraph 4-19)
If lights do not turn on, trace circuit. (See wiring diagram F-14, F-15, or F-17)
33. HEADLIGHTS INOPERATIVE IN HIGH AND LOW BEAM (ALL OTHER LIGHTS OPERATE)
NOTE
It may be necessary to remove headlights to perform this step.
Step 1. Check for voltage at headlight connectors.
If there is voltage, replace headlights. (See paragraph 4-24)
If there is no voltage, trace circuit from headlight connectors to blackout
toggle switch. (See wiring diagram F-1 3 or F-16)
34. ALL PARKING/MARKER LIGHTS INOPERATIVE (HEADLIGHTS OPERATE)
Step 1. Check 20 amp parking/marker light fuse. (See paragraph 4-12)
Replace fuse if burned out.
Step 2. Trace circuit from marker light connectors. (See wiring diagram F-13 or F-16)
35. BLACKOUT LIGHTS INOPERATIVE
Step 1. Ensure that blackout toggle switch is in “ON” position and blackout drive light
switch is in “ON” position.
Step 2. Check 5 amp blackout marker fuse and 10 amp stoplight fuse. (See
paragraph 4-12)
Replace fuse if burned out.
Step 3. Turn key to “RUN” position. Check for voltage at orange lead on blackout toggle
switch connector.
If there is voltage, replace switch. (See paragraph 4-1
If there is no voltage, trace circuit. (See wiring diagram F-18 or F-19)
2-72
TM 9-2320-289-20
Table 2-4. Electrical Troubleshooting (Con’t)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
36. BLACKOUT DRIVE LIGHT INOPERATIVE (OTHER BLACKOUT LIGHTS OPERATE)
Step 1. Ensure that blackout drive light switch is in “ON” position.
Step 2. Remove and check blackout drive light bulb. (See paragraph 4-25)
If bulb is good, trace circuit to switch. (See wiring diagram F-18 or F-19)
Replace bulb if burned out.
Step 3. Check for voltage at white lead on switch connector.
If there is voltage, replace switch. (See paragraph 4-1
If there is no voltage, trace circuit. (See wiring diagram F-18 or F-19)
37. HAZARD WARNING LIGHTS INOPERATIVE (TURN SIGNALS OPERATE)
Step 1. Remove hazard warning flasher. (See paragraph 4-12) Using jumper wire, connect
fuse box terminals where flasher was installed. Lights should turn on, but not flash.
If lights turn on, replace flasher.
If lights do not turn on, trace circuit. (See wiring diagram F-13 or F-16)
38. STOPLIGHTS (BOTH) INOPERATIVE (HEADLIGHTS OPERATE)
Step 1. Check 10 amp stoplight fuse. (See paragraph 4-12)
Replace fuse if burned out.
Step 2. Remove and check stoplight bulbs. (See paragraph 4-28 or 4-29)
Replace bulbs if burned out.
Step 3. Check for voltage at orange lead on stoplight switch.
If there is voltage, perform step 4.
If there is no voltage, trace circuit. (See wiring diagram F-14, F-15, or F-17)
Step 4. With brake pedal depressed, check for voltage at white/black lead on stoplight
switch.
Adjust switch for proper contact. (See paragraph 4-16, INSTALLATION) If
there is still no voltage, trace circuit. (See wiring diagram F-14, F-15 or
F-17)
If there is voltage, replace switch. (See paragraph 4-19)
2-73
TM 9-2320-289-20
Table 2-4. Electrical Troubleshooting (Con’t)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
39. STOPLIGHTS WILL NOT TURN OFF
Step 1. Disconnect connector from stoplight switch,
If lights go out, reconnect connector and adjust stoplight switch for proper
contact with brake pedal. (See paragraph 4-16, INSTALLATION) If lights
remain on, replace switch (See paragraph 4-16)
If lights remain on after disconnecting connector, trace circuit. (See wiring
diagram F-14, F-15, or F-17)
40. TURN SIGNALS INOPERATIVE (HAZARD WARNING LIGHTS OPERATE)
Step 1. Remove turn signal flasher. (See paragraph 4-12) Using jumper wire, connect fuse
box terminals where flasher was installed. Lights should turn on, but not flash.
If lights turn on, replace flasher.
If lights do not turn on, trace circuit. (See wiring diagram F-13 or F-16)
41. TURN SIGNALS LIGHT BUT DO NOT FLASH
Step 1. Check appropriate marker light or parking light bulb. (See paragraph 4-26 or 4-27)
Replace bulb if burned out.
Step 2. Remove turn signal flasher. (See paragraph 4-12) Using jumper wire, connect fuse
box terminals where flasher was installed. Lights should turn on, but not flash.
If lights turn on, replace flasher.
If lights do not turn on, trace circuit. (See wiring diagram F-13 or F-16)

 

[Starlight]

Medlog. Thanks forall that man ! T.

 

[ida34]

I think Medlog was kindly telling you to get the -20 in the manual section. The -20 will have wiring diagrams to supplement the info above. Look for the following:

TM 9-2320-289-20

 

[Starlight]

roger that.