P1506
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
5 — Subsystem
Vehicle speed control, idle control and auxiliary inputs
Manufacturer-specific meanings
- Ampiezza segnale modulato valvola comando aria aspirata più alta del previsto
- Idle Air Control Over Speed Error
- Idle Speed Control Valve Open Solenoid Control Circuit Signal High
- Idle Air Control Valve Opening Coil Voltage High
- Closed Throttle Position Switch Does Not Open Short To Ground