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Home >> Ford >> 2002 >> Thunderbird >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Exterior Lighting - THUNDERBIRD >> Diagnosis & Testing >> Symptom Chart

Symptom Chart

SYMPTOM CHART

Condition Possible Sources Action
  • No Communication With The Front Electronic Module
  • Central Junction Box (CJB) Fuses:
    • 20 (10A).
    • 30 (5A).
    • 33 (10A).
  • Circuitry.
  • Front Electronic Module (FEM).
  • No Communication With The Rear Electronic Module
  • Rear Battery Junction Box (BJB) Fuses:
    • 23 (5A).
    • 41 (15A).
  • Rear Electronic Module (REM).
  • Circuitry.
  • No Communication With The Instrument Cluster Module
  • CJB fuses:
    • 4 (5A).
    • 13 (5A).
    • 20 (10A).
  • Circuitry.
  • Instrument Cluster.
  • The Low Beams Are Inoperative - One Or Both Low Beam Headlamp(s) Are Inoperative
  • CJB Fuses:
    • 9 (15A).
    • 11 (15A).
  • Bulb.
  • Circuitry.
  • FEM.
  • Instrument Cluster.
  • Multifunction Switch.
  • Headlamp Switch.
  • The High Beams Are Inoperative - One Or Both High Beam Headlamp(s) Are Inoperative
  • CJB Fuses:
    • 9 (15A).
    • 11 (15A).
  • Bulb.
  • Circuitry.
  • Headlamp Switch.
  • Multifunction Switch.
  • FEM.
  • Instrument Cluster.
  • The Headlamps Are On Continuously - Both Low Beams
  • Circuitry.
  • Multifunction switch.
  • Headlamp switch.
  • FEM.
  • Instrument cluster.
  • The Headlamps Are On Continuously - Single Low/High Beams
  • Circuitry.
  • Multifunction switch.
  • FEM.
  • Instrument cluster.
  • The Power Supply Relay Is Inoperative - All SSP Features
  • Circuitry.
  • Rear BJB.
  • FEM.
  • REM.
  • The Power Supply Relay Is Inoperative - SSP1
  • Rear BJB Fuse 15 (30A).
  • Circuitry.
  • Relay.
  • The Power Supply Relay Is Inoperative - SSP2
  • Rear BJB fuse 10 (30A).
  • Circuitry.
  • Relay.
  • The Power Supply Relay Is Inoperative - SSP3
  • Rear BJB fuse 27 (30A).
  • Circuitry.
  • Relay.
  • The Power Supply Relay Is Inoperative - SSP4
  • Rear BJB fuse 28 (30A).
  • Circuitry.
  • Relay.


SYMPTOM CHART

Condition Possible Sources Action
  • No Communication With The Rear Electronic Module
  • Rear Battery Junction Box (BJB) Fuses:
    • 23 (5A).
    • 41 (15A).
  • Rear Electronic Module (REM).
  • Circuitry.
  • The Power Supply Relay Is Inoperative - All SSP Features
  • Circuitry.
  • Rear BJB.
  • Front Electronic Module (FEM).
  • REM.
  • The Power Supply Relay Is Inoperative - SSP1
  • Rear BJB Fuse 15 (30A).
  • Circuitry.
  • Relay.
  • The Power Supply Relay Is Inoperative - SSP2
  • Rear BJB Fuse 10 (30A).
  • Circuitry.
  • Relay.
  • The Power Supply Relay Is Inoperative - SSP3
  • Rear BJB Fuse 27 (30A).
  • Circuitry.
  • Relay.
  • The Power Supply Relay Is Inoperative - SSP4
  • Rear BJB Fuse 28 (30A).
  • Circuitry.
  • Relay.
  • The Stoplamps Are Inoperative
  • Brake Pedal Position (BPP) Switch.
  • Bulb.
  • Circuitry.
  • REM.
  • One Or More Stoplamps Are Inoperative - RR Stoplamp
  • Bulb.
  • Circuitry.
  • REM.
  • One Or More Stoplamps Are Inoperative - LR Stoplamp
  • Bulb.
  • Circuitry.
  • REM.
  • One Or More Stoplamps Are Inoperative - High Mounted Stoplamp
  • Bulb.
  • Circuitry.
  • REM.
  • The Exterior Lamp(s) Are Inoperative - LR Stop And Rear Lamps
  • Rear BJB fuse 39 (5A).
  • Bulb.
  • Circuitry.
  • The Exterior Lamp(s) Are Inoperative - RR Stop And Rear Lamps
  • Rear BJB 35 (5A).
  • Bulb.
  • Circuitry.
  • The Stoplamps Are On Continuously - All Stoplamps
  • Circuitry.
  • BPP switch.
  • REM.
  • The Stoplamps Are On Continuously - RR Stoplamp Only
  • Circuitry.
  • REM.
  • The Stoplamps Are On Continuously - LR Stoplamp Only
  • Circuitry.
  • REM.
  • The Stoplamps Are On Continuously - High Mounted Stoplamp Only
  • Circuitry.
  • REM.