Test Notes

NOTE: You should enter this Pinpoint Test only when directed here.

This Pinpoint Test is intended to diagnose only the following:
- Harness Circuits: DRL, HDLP, DEF

DESCRIPTION: The harness circuits diagnosed by this Pinpoint Test are electrical switch inputs into the Powertrain Control Module (PCM). The PCM uses these inputs to judge the level of electrical load on the engine. As the electrical load on the engine increases, the PCM may increase the idle speed in order to compensate.