P0418 OBD Trouble Code

2 results found

P0418 - Generic
Type Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description

Secondary Air Injection System Control "A" Circuit
P0418 - GM
Type Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description

Secondary Air Pump Relay Control Conditions
Location Bank 1
Cause

Engine speed over 40 rpm, system voltage from 8-15v, conditions met for 300 ms, then the PCM detected a short to ground, an open circuit or a short to power on the AIR Solenoid Relay control circuit

Try also: https://www.obd-codes.com/p0418