Wire an Apex i Rev Speed Meter

For info & manual,visit Apex-i



1.Tools needed:

2.Locate the ECU..for us Accords, its underneath the passengers kick panel

3.Know which OBD youre having.Generally,later models (96 and below) having OBD1 as their connectors.

and for the latest model, their connectors are OBD2+ (i.e OBD2,OBD2A etc)

For this installation,im using the OBD1 platform..



4.Unscrew the ECU out and look for the connectors

5.As you can see,theyre 3 connectors A,B and D on the ECU.Disconnect all three so that its easier for you to play with

6.The diagram..

7.The connections.Refer here for the OBD1 pinouts  on where i got it connected

IG Power (RED on RSM)- B1 on the ECu

Constant power (ORANGE on RSM) - from the ACC at the radio

RPM signal (YELLOW on RSM)- A21 on the ECu

Ground (BLACK on RSM) - A23 on the ECu

Speed sensor (PURPLE on RSM) - B10 on the ECu



a) Without speedcut (<180) - Refer Basic Connection Diagram

b) With Speedcut (>180) - Refer the second diagram



I choose (b)..the wiring is quite tricky for this one.In order for you to remove the speedcut,you HAVE to cut the speed signal wire into 2.

i)The wire that is going towards the ECU is connected to the PEACH wire on the RSM.

ii)The wire that is going out of the ECU is connected to the PURPLE wire on the RSM.

*Note:Connectors on the ECU may have different colour code,but the ECU output is always the same..



8.Check all the wiring before u test it..

9.Before you use it for the first time,make sure u deal with the setup first.At the "ON" key,enter the SETUP mode (refer manual)



10.Enjoy your Speed Cutting RSM..

I didnt test the above 180km/h yet since theres no way here in Kelantan to do it.May do it while in USJ..I would suggest that if you want to have one,get the RSM BLUE coz it has loads of other cool stuff on it, plus, it could connect with the revolusionary G-sensor which could actually measure the engines HP without going to the freakin dyno..hahaha..



Enjoy..

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