Some models have the Crank and Cam Angle Sensors (CAS) wired with opposite polarity. Four DIP switches are fitted inside the ECU to allow CAS sensors connection to the ECU to be reversed. There is no direct guide as to which way the sensors will be wired. Some vehicles factory fitted with an immobiliser will have sensors wired opposite.

Set switch positions to either Option 1 or Option 2, as follows:

Incorrect selection of switch position will result in the following symptoms:

1.Engine will not run or runs very rough

2.Unstable RPM

3.Trigger Error Counter incrementing