Why are turn signals, brake lamp, horn and odometer not working?

The most common problem on this vehicle is the sensor right on the master brake cylinder the seal goes out and brake fluid gets right in the sensor ruining it that is the most common problem lete no if it helps

Which insturment cluster does your's have ? electronic instrument cluster or standard instrument cluster !

Standard insturment cluster - speedo / odometer
Speedometer/Odometer
The speedometer and odometer provides speed information based on a speed/distance pulse signal from the vehicle speed sensor (VSS). The VSS is mounted on the speedometer driven gear in the transmission.
Could be the VSS is bad .
Horn The horn system includes the following:

• horn relay
• horn
• clock spring
• steering wheel control switch harness
• steering wheel pad horn switch, which is part of the driver side air bag module. For additional information, refer to Section 501-20B .

The horn is located behind the front bumper mounted to the radiator support.

Is the air bag light lit on the insturment cluster ? If it is the clock spring could be the problem . If not lit check the circuits from the horn relay .

VEHICLE RELAYS Operation Diagnosis .

Which headlamps don't work ? Low beams , high beams , both ?

• The high beams are inoperative

• Bulbs.
• Circuitry.
• Multifunction switch.

• GO to Pinpoint Test C .

• The low beams are inoperative

• Bulbs.
• Circuitry.
• Headlamp switch.
• Multifunction switch.
• LCM.

• GO to Pinpoint Test D .

Principles of Operation
NOTE: Due to varying wattage ratings and resulting current draw, certain aftermarket headlamp bulbs may cause the lighting control module (LCM) to shut down the short circuit protection, resulting in the low beams becoming inoperative. Verify that the headlamp bulbs meet Ford specifications.
Headlamp System The headlamp system consists of:

• two aerodynamic halogen headlamp bulbs and retainers
• headlamp switch
• multifunction switch
• lighting control module (LCM)
• circuit wiring and circuit protection

In normal operation:

• With the multifunction switch in the low beam position, power is supplied by the LCM to the low beam elements through the multifunction switch.
• With the multifunction switch in the high beam position (forward detent), power is supplied to the high beam elements and to the high beam indicator in the instrument cluster.
• When the multifunction switch is pulled toward the steering wheel, the flash-to-pass switch (part of the multifunction switch) is closed and power is supplied to the high beam elements. When the switch is released, they return to low beam operation.
• The battery saver feature of the LCM will automatically turn off the courtesy lamps, demand lamps, headlamps, or parking lamps under the following conditions:
  • The ignition switch is in the OFF position.
  • The headlamp switch is in parking lamps ON or headlamps ON positions.
  • After 10 minutes.

Headlamp Switch The headlamp switch is a multi-position switch.

• The positions include OFF, PARK, and HEAD.
• With the headlamp switch in the PARK position (first detent), a signal is supplied to the LCM which powers the front parking lamps, the tail lamps, the side marker lamps, and the license lamp.
• With the headlamp switch in the HEAD position, power is supplied to the headlamps through the LCM and the multifunction switch.
• The panel dim switch (part of the headlamp switch) is located above the headlamp switch. The panel dim switch operates only with the parking lamps or headlamps on.
• When the panel dim switch is held in the up position, the instrument panel lighting will progressively brighten.
• When the panel dim switch is held in the down position, the instrument panel lighting will progressively dim.

For additional information, refer to Section 413-00 .
Headlamps On Warning Chime If the headlamp switch is left in either the PARK or HEAD position and the driver door is opened, the LCM will sound a headlamps on reminder chime when the following conditions occur:

• The ignition switch is OFF with the ignition key out.
• The driver door is ajar.

For additional information, refer to Section 413-09 .

Inspection and Verification

1. Verify the customer concern by operating the system.

1. Visually inspect for obvious signs of mechanical and electrical damage.

Visual Inspection Chart Mechanical Electrical

• Headlamp switch

• Central junction box (CJB) fuse(s):
  • 6 (15A)
  • 15 (15A)
  • 21 (15A)
  • 23 (15A)
  • 27 (20A)
• Battery junction box (BJB) HI-BEAM HEADLIGHTS (20A) fuse
• Circuitry
• Headlamp bulb
• Lighting control module (LCM)
• Loose or corroded connections

LOOSE WIRE BAD RELAY FUSE WIRE TERMINAL MALE TO FEMALE END NOT TOUCHING ETC.

If you can kick the panel and it work, then there is a loose connection somewhere. Start at the fuse block and make sure you have a good connection there, then move forward.

Hope this helps.



Item Part Number Description 1 — Instrument cluster 2 — Odometer reset shaft 3 — Air bag warning indicator 4 — RH turn signal indicator 5 — Charging system warning indicator 6 — Tachometer 7 — Low oil pressure warning indicator 8 — Brake system warning indicator 9 — Cruise control indicator 10 — Check fuel cap indicator 11 — Anti-lock brake system (ABS) warning indicator 12 — Check transmission indicator 13 — Odometer 14 — Transmission range selector indicator 15 — Trip odometer 16 — Theft indicator 17 — Low coolant indicator (if equipped) 18 — Safety belt warning indicator 19 — Low fuel warning indicator 20 — Fuel gauge 21 — Malfunction indicator lamp (MIL) 22 — Door ajar warning indicator 23 — Traction control indicator (if equipped) 24 — Engine coolant temperature gauge 25 — High beam indicator 26 — LH turn signal indicator 27 — Speedometer

Check the front and rear (although probably the rear) turn signal bulb socket for corrosion and/or water intrusion. If you find corrosion attempt to clean (but you will probably have to replace the socket and bulb). For water intrusion you will probably have to replace the break lamp assembly.

your speedo gear is loose or broke check both it is located in front brake housing

You can use a pointed nosed pliers (or similar) to remove fuses..... The rain would not effect the turn signals unless you had a water leak into the flasher unit itself !
The A/C has to be fully charged to blow cold air and would not be on some days and then off the next. the refrigident gas would not change because of weather conditions. .........
A simple test lamp will indicate which fuse is functioning or otherwise without removal of same ! Good luck

have you checked the bulbs?

Fuse/Relay
Location
Fuse Amp
Rating
Passenger Compartment
Fuse Panel Description
9 10A Right Front Low Beam
10 5A Left Front Turn, Left Front Repeater, Left
Front Sidemarker, Left Front Park Lamps
11 10A Left Front High Beam
12 — Not Used
13 5A Cluster
14 10A RCM, DATC
15 5A Not Used (Spare)
16 5A E/C Mirror, Heated Seat Controls, RSM
(Rain Sensor Module)
17 5A RCM, Alternator Warning Lamp
18 20A Radio, CIA
19 15A Tilt/Tele Motors
20 10A FEM, DATC, Cluster, Brake Shift Interlock,
REM
21 10A Power Folding Mirrors
22 10A DDM
23 10A Right Front High Beam
24 5A PATS
25 10A Left Front Low Beam
26 10A Wiper Relay, Windshield Washer
27 10A Radio, Cellphone
28 5A Security Horn
29 5A Trailer Tow Ignition Sense, VEMS, FEM
30 5A FEM
31 — Not Used
32 20A Cigar Lighter
33 10A Switch Backlighting
34 10A Not Used (Spare)
35 5A Stop Lamp Signal