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

1. Verify the customer concern by operating the engine to duplicate the condition.

2. Visually inspect for obvious signs of mechanical damage. Refer to the following chart.

Visual Inspection Chart

Mechanical

  • Engine coolant leaks
  • Engine oil leaks
  • Fuel leaks
  • Damaged or severely worn parts
  • Loose mounting bolts, studs and nuts

3. If the inspection reveals obvious concerns that can be readily identified, repair as necessary.

4. If the concerns remain after the inspection, determine the symptoms. GO to Symptom Chart .

    Engine (Diagnosis and Testing)
    Special Tool(s) Commercially Available Leakdown Tester Quick Disconnect Compression Tester 134-R0212 or equivalent Dial Indicator Gauge Adapter 303-007 (TOOL-6565-AB) ...

    Symptom Chart
    Condition Possible Sources Action Difficult starting Damaged ignition system. Damaged fuel system. Damaged starting system. Damaged charging ...

    Other materials:

    Steering Column Switches (Diagnosis and Testing)
    Refer to Wiring Diagrams Cell 13 , Power Distribution for schematic and connector information. Refer to Wiring Diagrams Cell 81 , Interval Wiper/Washer for schematic and connector information. Refer to Wiring Diagrams Cell 85 , Headlamps for schematic and co ...

    Pinpoint Test E: LFC 15/DTC B1916 - Driver Air Bag Circuit Shorted to Battery or Ignition
    Normal Operation The restraints control module (RCM) checks for driver air bag circuit shorts to battery or ignition by monitoring the voltage of circuit 614 (GY/OG) and 615 (GY/WH) at pins 3 and 4. If the RCM detects a short to battery or ignition on e ...

    Pinpoint Test C: LFC 29/DTC C1414 - Incorrect Vehicle Identification Code
    Normal Operation The restraints control module (RCM) monitors the electrical state of pins 10, 13 and 14 to determine if it is installed on the correct vehicle. If the RCM detects an incorrect condition on any of these pins, it will store a diagnostic t ...