Test Notes

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

This Pinpoint Test is intended to diagnose only the following:
- Heater Oxygen Sensor (HO2S) Heater
- Fuel Injector(s)
- HO2S Connections
- Harness Circuits: HO2SH, HO2S, INJ 1-6, and VPWR
- Vacuum Systems
- Powertrain Control Module (PCM)

CAUTION: Probing or piercing wiring insulation is not permitted and may allow water entry, causing corrosion and shorting which may result in HO2S failure.