Test Notes

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

REMEMBER: This Pinpoint Test is intended to diagnose the following:

- HO2S/Heater.
- HO2S Connections.
- Vacuum Systems.
- Fuel Injector(s).
- Harness Circuits: HO2S GND, HO2S, INJ 1-8, VPWR and SIG RTN.
- Powertrain Control Module (PCM).

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