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 POLICE INTERCEPTOR, 4.6 WREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEBODY, CAB CONTROL SYSTEMSMODULE COMMUNICATIONS NETWORK SYSTEM
1997 Ford Crown Victoria Police Interceptor, 4.6 W
Module Communications Network System
1997 Ford Crown Victoria Police Interceptor, 4.6 WSECTION Module Communications Network System
- Description & Operation
- Communication Network Diagnostics
- Notes
- 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 Circuits No. 914 & 915
- Test B: Electronic Automatic Temperature Control (EATC) Fault On Circuits No. 914 & 915
- Test C: DTC On Circuits No. 914 & 915 (With EATC)
- Test D: Natural Gas Vehicle (NGV) Module Open In Circuits No. 914 & 915
- Test E: DTC On Circuits No. 914 & 915 (Without EATC)
- Test F: Lighting Control Module (LCM) Does Not Respond
- Test G: Anti-Lock Brake System (Abs) Module Does Not Respond
- Test H: Driver Door Module Does Not Respond
- Test J: Air Bag Diagnostic Monitor Does Not Respond
- Test K: No Module Response
- Test L: Lighting Control Module (LCM), Air Bag Diagnostic Monitor & Driver's Door Module Do Not Respond (Without Abs & Driver's Seat Module)
- Test M: Lighting Control Module (LCM), Air Bag Diagnostic Monitor & Driver's Door Module Do Not Respond (Without Driver's Door Module & Driver's Seat Module)
- Test N: Lighting Control Module & Air Bag Diagnostic Monitor Do Not Respond (Without Abs, Driver's Door Module & Driver's Seat Module)
- Diagnostic Trouble Code (DTC) Definitions
- Wiring Diagrams
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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.