* Dead or weak remote batteries: While you mentioned the remote batteries are good, it's worth double-checking. Even slightly weak batteries can cause intermittent or complete failure. Try replacing them with fresh batteries as a first step.
* Remote programming issue: The remotes may need to be reprogrammed to the car's receiver. This is a common problem and often involves a specific procedure (usually involving the ignition switch and lock buttons). Consult your owner's manual or search online for "1997 Ford Taurus remote reprogramming" for instructions.
* Faulty remote: The remote itself may be broken internally, even if the battery is good. Try testing with a spare remote if available.
* Damaged receiver: The receiver in the car that picks up the signal from the remote may be faulty. This is located in the car's body, often near the ignition column. A mechanic can diagnose this.
* Low signal strength: Interference from other electronic devices or a physical obstruction between the remote and the receiver can affect the signal. Try being closer to the car and eliminating potential interference sources.
* Blown fuse: Check your owner's manual for the fuse responsible for the remote entry system and check if it is blown.
* Alarm system issues: If the car has a separate aftermarket alarm system installed, it could be interfering with or overriding the factory remote entry system.
* Security System Malfunction: The car's security system might be malfunctioning, preventing the remote from working correctly.
* Body Control Module (BCM) Problems: The BCM controls many electrical functions in the car, including the remote entry system. A faulty BCM could be the culprit. This is a more serious issue requiring professional diagnosis.
Troubleshooting Steps:
1. Replace remote batteries: This is the easiest and cheapest first step.
2. Reprogram remotes: Follow instructions for reprogramming (easily found online).
3. Check fuses: Consult your owner's manual for relevant fuses.
4. Try a spare remote (if available): This helps isolate whether the problem is with the remote or the car's system.
5. Check for interference: Try the remote in different locations, further away from possible interference.
If none of these steps solve the problem, you will likely need to take your car to a qualified mechanic or Ford specialist for diagnosis and repair. They have the tools to test the car's receiver and other components related to the remote entry system.
