New CEL's :/

[Double Dspeed]

so this morning i threw two new cel's i've never heard of before: pcm0704 which comes up as "clutch switch input circut malfunction" and Icu2064 which didnt give a description. (boom04) any sugesstions?

 

[b00bs for n00bs]

not sure about the first one, but the second code is common with ap users.
it means that some unit in your car is trying to send a signal to another unit in the car, but can't. in other words, something is "malfunctioning" but something is getting lost in translation when sent to the ecu.
on the cobb forums, there's a thread.

 

[8.5MS3]

first one sounds like the switch that prevents the car from starting w/o the clutch being pressed. second one is the code that makes the actual CEL light illuminate.

 

[Double Dspeed]

well thats a slight releif my car has been actin a little funny lately

 

[MazSpeed3]

Can someone tell me what does code PCM P0421 means please, Thanks !!!

 

[GoFast]

Can someone tell me what does code PCM P0421 means please, Thanks !!!

You must search my friend

http://www.mazdas247.com/forum/search.php?searchid=8328081

 

[MazSpeed3]

Thanks got some info on it