Ford Mustang (1999-2004) Service Manual: Inspection and Verification

NOTE: A new instrument cluster must be reconfigured.

NOTE: The instrument panel dimmer switch is a part of the headlamp switch.

1. Verify the customer concern.

2. Visually inspect for obvious signs of electrical damage.

Visual Inspection Chart

Electrical

  • Central junction box (CJB) fuses:

  • 5 (15A)

  • 21 (5A)

  • 34 (20A)

  • 37 (5A)

  • 32 (15A)

  • 27 (20A)

  • Circuitry

  • Damaged switch

3. If the fault is not visually evident, determine the symptom and proceed to the Symptom Chart.

Symptom Chart

Condition Possible Sources Action
  • The control illumination is inoperative
  • Central junction box (CJB) fuse 37 (5A).
  • Circuitry.
  • Headlamp switch.
  • Go To Pinpoint Test A .
  • The instrument cluster illumination is inoperative
  • Circuitry.
  • Instrument cluster.
  • Bulb(s).
  • Go To Pinpoint Test B .
  • The climate control illumination is inoperative
  • Circuitry.
  • Bulb(s).
  • Go To Pinpoint Test C .
  • The audio system illumination is inoperative
  • Circuitry.
  • Audio unit.
  • Go To Pinpoint Test D .
  • A single illumination source is inoperative
  • Circuitry.
  • Switch.
  • Go To Pinpoint Test E .
    Instrument Cluster and Panel Illumination (Diagnosis and Testing)
    Refer to Wiring Diagrams Cell 71 , Instrument Illumination for schematic and connector information. Special Tool(s) 73III Automotive Meter 105-R0057 or equivalent ...

    Pinpoint Tests
    PINPOINT TEST A: THE CONTROL ILLUMINATION IS INOPERATIVE Test Step Result / Action to Take A1 CHECK PARKING LAMPS YesPlace the headlamp switch in the OFF position. GO to A2 . No ...

    Other materials:

    Installation
    1. Clean the A/C disc and field coil and pulley mounting surfaces. 2. CAUTION: Do not use air tools. The A/C clutch field coil can be easily damaged. Install the A/C clutch field coil. 1. Place the A/C clutch field coil on the A/C compressor with the A/C ...

    Handle - Interior Door
    Removal 1. Remove the door trim panel (23942). For additional information, refer to Section. 2. Remove the rivet. 3. Remove the cable clip. 4. Release the cable housing from the interior handle. 5. Release the actuating cable from the interior ha ...

    Spring Lock Couplings
    Special Tool(s) Disconnect Tool, Spring Lock Coupling (3/8 inch yellow) 310-D004 (D87L-9280-A) or equivalent Disconnect Tool, Spring Lock Coupling (1/2 inch green) 310-D005 (D87L-9280-B) or equivalent Material Item ...