Missing TSB Link?
Posted: Mon Dec 14, 2015 1:15 pm
First let me say that I did submit this via feedback but I had to amend it due to character limitations.
Subject vehicle is a 2005 Toyota Tundra 4.7 SR5. CEL is on with codes P1441, P1444 and P2440. These codes are for the secondary air injection system. Most of the components are under the intake, as is the starter on this model. I used the search function for P1441 and found my diagnostic routine; there even was a routine for these specific 3 codes together. As I suspected, I had to pull the intake to do some of the testing. The TSB button was NOT lit. The testing showed the Driver module to be bad, which is one of the only items not located under the manifold.
Later I was doing some personal training on the system and decided to know a little more about the driver. I searched again and got Air Injection System. I clicked on that and discovered a TSB that had a whole new diagnostic routine. So why did this TSB not come up when I was in the individual code? None of these individual codes causes the TSB to be known or shown. Isn't that the way the TSB button works for relevant codes?
Subject vehicle is a 2005 Toyota Tundra 4.7 SR5. CEL is on with codes P1441, P1444 and P2440. These codes are for the secondary air injection system. Most of the components are under the intake, as is the starter on this model. I used the search function for P1441 and found my diagnostic routine; there even was a routine for these specific 3 codes together. As I suspected, I had to pull the intake to do some of the testing. The TSB button was NOT lit. The testing showed the Driver module to be bad, which is one of the only items not located under the manifold.
Later I was doing some personal training on the system and decided to know a little more about the driver. I searched again and got Air Injection System. I clicked on that and discovered a TSB that had a whole new diagnostic routine. So why did this TSB not come up when I was in the individual code? None of these individual codes causes the TSB to be known or shown. Isn't that the way the TSB button works for relevant codes?