P1604 — BMW
P1604 — BMW: Control Module Self Test Speed Monitoring
Code breakdown
P — System
Powertrain (engine, transmission, fuel & emissions)
1 — Type
Manufacturer-specific
6 — Subsystem
Computer output circuit
Manufacturer-specific meanings (BMW)
- Code word unregistered
- Loss Of IPC Serial Data
- BMWControl Module Self Test Speed Monitoring
- Immobilizer System Fault
- Internal Control Module Driver Error