Can a code trigger other other codes? 2017 Nissan Murano V6, AWD has a check engine light code which says there's a issue with the MAF sensor, the throttle body needs cleaning along with the fuel injectors and a failure in the transmission. The transmission drives just fine. I'm asking because I suspect the shop might be trying to pull some shenanigans.
Can a code trigger other other codes?
Yes.
The transmission drives just fine.
It may not be fine for long. The Jatco CVTs in those vehicles are notoriously bad, with a high failure rate. What is the nature of the "failure" in the transmission? You might want to get a second opinion if you don't trust the shop.
@chucktobias The transmission has been replaced once already at 30K miles, under warranty. Still have 2 months to go on the warranty. I 've heard about junk Jatco transmissions but it could be failing again? Incredible. This is being done at a dealership.
Yeah, those Jatco CVTs are really terrible as you've already discovered. I'd think that if that thing is still under warranty the dealer should fix the transmission problem.
@chucktobias The work was done, no codes appeared again. But will monitor (actually not mt car) for anything that might come during the remainder of the warranty period. Thanks everyone for your help.
They can and they do. U codes(network/communication codes) are notorious for triggering other codesCan a code trigger other other codes?
@hixster technically speaking, an electrical fault is triggering both the network codes AND related ones. It would be more accurate to say that one failure can cause multiple codes. Generally , trouble codes themselves don't usually trigger other codes, as each has it's own set of conditions and tests that cause them to set. (there are probably some exceptions to that).
@imperator good point.. the condition creates all the codes, ie- a weak battery.
@hixster but you are right that you almost always see 'U' codes along with others. When a module can't talk to the others, then systems start to fail.