Honda DTC P1687 – Automatic Transaxle FI Signal B High Input
DTC P1687 meaning on Honda
DTC P1687 indicates an issue with the Automatic Transaxle FI Signal B having a high input in a Honda vehicle.
Honda DTC P1687 symptoms
- Check Engine Light (MIL) illuminated
- Transmission shifting issues
- Reduced fuel efficiency
Honda DTC P1687 causes
- Faulty Automatic Transaxle FI Signal B sensor
- Wiring or connector issues in the transmission circuit
- Internal transmission problems
Honda DTC P1687 seriousness
The seriousness of DTC P1687 lies in the potential transmission problems it may indicate. Ignoring this code can lead to further damage to the transmission system.
How to diagnose DTC P1687 on Honda
- Use a diagnostic scanner to retrieve the trouble codes
- Inspect the Automatic Transaxle FI Signal B sensor and its wiring for any visible damage
- Check the transmission fluid level and condition
How to fix DTC P1687 on Honda
- Replace the faulty Automatic Transaxle FI Signal B sensor
- Repair any damaged wiring or connectors in the transmission circuit
- If internal transmission issues are found, consult a professional mechanic for further diagnosis and repair
How to erase DTC P1687 on Honda
- After fixing the underlying issue, use a diagnostic scanner to clear the trouble codes
- Ensure the repair has been successful by driving the vehicle and checking for any recurrence of the DTC
Recommended tools for Honda diagnostics
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