Tach signal is at PCM, Red 80 Pin connector (C2), pin #10, white wire

**Only the face of the C2 connector is red (the side that plugs into the PCM)

(C1 is blue)

Set to "4 cylinder" mode (2 pulse/crank rev) if connecting at the PCM.

**NOTE**

You can also get the engine speed signal, 12V power and ground from one of the ignition coils:

Terminal "A" is ground. Connector wire color: Black (connect black wire of shift light here)

Terminal "B" is unused

Terminal "C" is engine rpm. Connector wire color: Varies depending on which coil (connect green wire of shift light here)

Terminal "D" is 12 volts. Connector wire color: Pink (connect red wire of shift light here)

 ** Set the shift light to 1 cylinder mode if connecting to an ignition coil. Also set the shift light to high sensitivity mode since the coil signal is a low amplitude signal.

Vss signal is at PCM, Red 80 Pin connector (C2), pin # 50, dark green with white stripe wire

Tach signal located at PCM (behind passenger side wheel well,bottom connector (X1), pin #48, white wire. (X1 is a 73 position connector)

This wire also runs through the under-hood fuse block (C2, pin F6) to the instrument cluster pin#5 connector 2 and to the Heads Up Display module pin#4

Tach signal located at PCM (behind passenger side wheel well,bottom connector (X1), pin #48, white wire. (X1 is a 73 position connector)

The tach signal also goes to the instrument cluster (pin #5/connector #2).

Set the cylinder setting to "4" (2 pulse/rev).

Tach signal is at PCM, (X1), pin #25, WHITE wire (X1 is a 56 position connector). This white wire runs through the under hood fuse block into the instrument cluster. It is connector "X2", pin #5 of instrument cluster. It also goes to the heads up display, pin #4.

Click here for ECM Location

Click here for Instrument Cluster Connector view