p2138 engine code

[crazylegs]

so my next step should be to physically trace the wires from the peddle to the ECU or is there an easier way of doing that?

thank you again for your input

[CTScott]

Originally Posted by crazylegs

so my next step should be to physically trace the wires from the peddle to the ECU or is there an easier way of doing that?

thank you again for your input

Yes. You would disconnect the pedal connector and the smaller ECM connector

VPA: Red wire on pedal connector
VPA2: Blue wire on pedal connector

On the ECM connector A21 they go to pins 55 and 56 (same colors as other end)

With both ends disconnected, first measure the resistance between the two wires, which should show as an open circuit. Then stick a small piece of wire into the ECM connector to bridge the two wires at that end and measure again. This time the resistance should be very close to zero.

connector A21.jpg