2005 Echo RS Cluster in a 3DR 2004 Echo Liftback .

[mpcv2000]

Originally Posted by Ryze268

In the .pdf it says the tach signal comes from the Black wire on the C13 connector, is this true?

I'll answer that if you don't mind.

C13 ( Black ) is the tach signal and to get my 05 Tach to work in my 04 I took the signal on the OBDII port that is also the black wire and hooked it up to the Black wire on the C13 connector.

This is a very easy swap if you take your time.