Help installing remote starter.

Closed Thread Subscribe

Thread Tools

Search this Thread

#11

01-24-2012, 10:54 PM

Blazed&Confused

Beginning Member

Join Date: Jun 2011

Location: Indianapolis, IN

Posts: 20

Blazed&Confused is on a distinguished road

Quote:

Originally Posted by blacer2000

In addition these sites say the tachometer wire is at the red plug (pin 20) in the PCM, but I checked this wire and it gets a constant AC voltage even when accelerating, so what's up with that?

When I check the middle pin on the ICM I do get the varying voltage with rev engine. But there is no wire, the plug only has two wires, the middle one is missing.

So what route should I take? Thanks for the help.

There should be a white wire in the plug harness that plugs into the instrument cluster. You will know it's the tach wire when checking it, set your meter to AC volts, connect your black(ground) lead to a good chassis ground and the red to the wire you believe is the tach wire. You should see about 4 - 6 volts AC at idle and should change when you rev the motor.