KOEO Self-Test

Ensure engine is warmed to normal operating temperature. If engine does not start (or stalls after starting), continue KOEO SELF-TEST. DO NOT  depress throttle. Turn ignition off. Ensure test equipment is properly attached. Turn ignition on (engine off). Record all KOEO and Continuous Memory Codes.

If a Code 111 (pass code) is not retrieved, service KOEO codes. See DIAGNOSTIC TROUBLE CODE REFERENCE . If PCM will not output codes, go to TEST QA. If diagnostic trouble codes are retrieved:

• If MIL/CHECK ENGINE light is on, service diagnostic trouble codes in order retrieved. See the DIAGNOSTIC TROUBLE CODE REFERENCE  table.
• If vehicle has a no-start condition, go to TEST AA .
• If vehicle displays a Code 111 (pass code) and does not have any symptoms described in previous steps, go to KOER SELF-TEST.