Output Components
Output components are diagnosed for proper response to control module commands. Components where functional monitoring is not feasible will be monitored for circuit continuity and out-of-range values if applicable. Output components to be monitored include, but are not limited to the following circuits:
- Idle air control (IAC) motor or an idle speed (ISC) control
- Control module controlled evaporative emission (EVAP) canister purge valve
- A/C relays
- Cooling fan relay
- Vehicle speed sensor (VSS) output
- Malfunction indicator lamp (MIL) control
Refer to Engine Control Component Description .