Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1997CROWN VICTORIA BASE, 4.6 WREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 7 (MODULE COMMUNICATIONS NETWORK SYSTEM)
1997 Ford Crown Victoria Base, 4.6 W
Section 7 (Module Communications Network System)
1997 Ford Crown Victoria Base, 4.6 WSECTION Section 7 (Module Communications Network System)
WARNING: This page is about a different car, the 1997 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
- Description & Operation
- Communication Network Diagnostics
- Repairing Bus Wiring
- Diagnostic Procedure Sequence
- Equipment Hook-Up
- Data Link Diagnostics
- Retrieving Diagnostic Trouble Codes
- Clearing Diagnostic Trouble Codes
- On-Demand Self-Test
- Retrieving Parameter Identification (PID) Information
- Diagnostic Command
- Module Version Identification
- Communication System Diagnostics
- Wiggle Test
- Testing
- Communication Network Failure
- Test A: Powertrain Control Module (Pcm) Fault On Circuit 914/915
- Test B: Electronic Automatic Temperature Control (EATC) Fault On Circuit 914/915
- Test C: Fault On Circuit 914/915
- Test D: Lighting Control Module (LCM) Does Not Respond
- Test E: Anti-Lock Brake System (Abs) Module Does Not Respond
- Test F: Driver Seat Module Does Not Respond
- Test G: Driver Door Module Does Not Respond
- Test H: Air Bag Diagnostic Monitor Does Not Respond
- Test J: No Module Response
- Test K: Lighting Control Module (LCM), Air Bag Diagnostic Monitor, Driver's Door Module & Driver's Seat Module Do Not Respond
- Test L: Lighting Control Module (LCM), Air Bag Diagnostic Monitor & Driver's Door Module Do Not Respond
- Test M: Lighting Control Module (LCM), Air Bag Diagnostic Monitor & Anti-Lock Brake Module Do Not Respond
- Test N: Lighting Control Module & Air Bag Diagnostic Monitor Do Not Respond
- Diagnostic Trouble Code (DTC) Definitions
- Wiring Diagrams
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.