Test DN: Step 1

1) Code 31: Generate Code 35  Code 31 indicates that EVP sensor signal is less than the self-test minimum of 0.2 volt. Possible causes for this fault are: a faulty EVP sensor, an open or grounded harness, or a faulty ECA. Turn key off and wait 10 seconds. Disconnect EVP harness at sensor. Install a jumper wire between VREF circuit and EVP circuit at the EVP sensor vehicle harness connector. Repeat KOEO Self-Test. Check for code 35. Ignore all other codes at this time. If Code 35 is displayed, remove jumper and replace EVP sensor. Repeat QUICK TEST. If Code 35 is not displayed, remove jumper wire and go to next step.