What does the OBD II fault code p0418 mean?

What does the OBD II fault code p0418 mean?

What Does Code P0418 Mean? OBD II fault code P0418 is a generic code that is defined as “Secondary air injection pump relay A -circuit malfunction”, and is set when the PCM (Powertrain Control Module) detects a failure or malfunction in the SAI ( S econdary A ir I njection) circuit that is associated with the relay labelled “A”.

What was the p0418 code on my Toyota Tundra?

2010 Toyota Tundra trouble code P0418. What could be causing this code? I’ve never seen a code for a secondary air injection system before…. 2008 toyota tundra 5.7, 104,000 miles. I got a p0415 code. I replaced both pumps and the switching valves. Also replaced the battery and fuel cap.

What is the p0418 code on a 2001 Blazer?

There are no known codes that are directly related to P0418 – “Secondary air injection pump relay “A” -circuit malfunction”. Blazer 2001 with p0418 code. I have checked fuses (no problem that I could see). I replaced some worn hoses (dry rot) and reconnected 1 hose to outside fender well box.

How to diagnose a p0418 secondary air injection system relay?

In order to accurately diagnose a code P0418, a diagnostic scanner, a digital volt/ohmmeter (DVOM), and a reliable vehicle information source (like All Data DIY) will be required. Inspect system wiring, connectors, and the serpentine belt which drives the pump (if applicable) to begin your diagnosis.

Why is the DTC p0418 relay’a’circuit not working?

The DTC P0418 is detected the the AIR vacuum control solenoid circuit not operating as desired by the PCM. An air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module ( PCM) grounds the Air pump relay control circuit which energizes the Air pump.

What are the p0418 secondary air injection system codes?

Other secondary air injection system trouble codes include P0410, P0411, P0412, P0413, P0414, P0415, P0416, P0417, P0419, P041F, P044F, P0491, and P0492. Code Severity & Symptoms. There is no need to address a stored code P0418 with great urgency.