Checking Wiring
-- Remove the Heated Oxygen Sensor (HO2S) -G39- / Oxygen Sensor Heater -Z19-. Refer to the service information for removal and installation procedures.
-- Using a multimeter, Check the Heated Oxygen Sensor (HO2S) -G39- / Oxygen Sensor Heater -Z19- electrical harness connector terminals to the Engine Control Module (ECM) -J623- electrical connector T94 for an open circuit.
| Heated Oxygen Sensor (HO2S) -G39- / Oxygen Sensor Heater -Z19- electrical harness connector terminal | Engine Control Module (ECM) -J623- electrical connector T94 terminal |
|---|---|
| 1 | 36 |
| 2 | 17 |
| 5 | 16 |
| 6 | 39 |
Specified resistance 1.5 Ω max.
If the specification is Not obtained:
-- Check the wiring connection for an open or short circuit.
-- Check the wiring connection for damage, corrosion, loose or broken terminals.
-- If necessary, repair the wiring or connection.
If the specification is obtained:
-- Replace the Engine Control Module (ECM) -J623-. Refer to the Repair Information.