P1684
Manufacturer-specific fault code
This code has different meanings depending on the manufacturer. Select your vehicle make below to view specific diagnosis and solutions:
Code breakdown
P — System
Powertrain (engine, transmission, fuel & emissions)
1 — Type
Manufacturer-specific
6 — Subsystem
Computer output circuit
Manufacturer-specific meanings
- Circuito sensore posizione pompa dosatrice olio (Mazda)
- Driver 5 Line 4
- Battery Disconnected Within Last 50 Starts
- Metering Oil Pump Position Sensor Circuit
- Control Unit Programming Communication Error