Test Notes

You should enter this pinpoint test only when directed here.

This pinpoint test is intended to diagnose:
- Heated Oxygen Sensor (HO2S)/Heater
- HO2S connections
- Vacuum systems
- Fuel injector(s)
- Harness circuits: HO2SH, HO2S, INJ 1-6, and VPWR
- 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.