Test TC-130A: O2S 2/2 Stays At Center
NOTE:
For connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagram, see WIRING DIAGRAMS article.
- For O2 sensor/model identification see O2 SENSOR 2/2 IDENTIFICATION table. Turn ignition on with engine off. Using scan tool, monitor O2S 2/2 voltage. Wait for voltage reading to stabilize between .4-.6 volt. Using scan tool, actuate O2S 2/2 heater test. Monitor O2S 2/2 voltage for 2 minutes. If O2S 2/2 voltage is still .4-.6 volt, go to step 4)
. If O2S 2/2 voltage is not .4-.6 volt, go to next step.O2 SENSOR 2/2 IDENTIFICATION
Application Location Avenger & Sebring Coupe V6 Front Bank Downsream O2S - Using scan tool, stop actuation test. Turn ignition off. Disconnect O2S 2/2 connector. Inspect O2S 2/2 connector for damaged, pushed out or miswired terminals. Repair connector as necessary. Perform TEST VER-5A . If connector is okay, go to next step.
- Disconnect Powertrain Control Module (PCM) connector. Inspect PCM connector for damaged, pushed out or miswired terminals. Repair connector as necessary. Perform TEST VER-5A . If connector is okay, replace O2S 2/2. Perform TEST VER-5A .
- Using scan tool, stop actuation test. Turn ignition off. Disconnect O2S 2/2 connector. Inspect O2S 2/2 connector for damaged, pushed out or miswired terminals. Repair connector as necessary. Perform TEST VER-5A . If connector is okay, go to next step.
- Using an ohmmeter, check resistance of O2S ground circuit between O2S connector (harness side) and ground. See O2S 2/2 CONNECTOR WIRE IDENTIFICATION (HARNESS SIDE) table. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open sensor ground circuit. Perform TEST VER-5A .
- Disconnect Powertrain Control Module (PCM) connector. Inspect PCM connector for damaged, pushed out or miswired terminals. Repair connector as necessary. Perform TEST VER-5A . If connector is okay, go to next step.
- Using an ohmmeter, measure resistance of O2S 2/2 signal circuit between O2S 2/2 connector (harness side) and PCM connector terminal No. 1. See O2S 2/2 CONNECTOR WIRE IDENTIFICATION (HARNESS SIDE) table and PCM CONNECTOR WIRE IDENTIFICATION table. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open O2S signal circuit. Perform TEST TEST VER-5A .
- Reconnect PCM connector. Turn ignition on. Connect a jumper wire between O2S signal circuit and sensor ground circuit terminals at O2S 2/2 connector (harness side). See O2S 2/2 CONNECTOR WIRE IDENTIFICATION (HARNESS SIDE) table. Using scan tool, read O2S 2/2 volts. If voltage less than 0.2 volt, replace O2S 2/2. Perform TEST VER-5A . If voltage is 0.2 volt or more, replace PCM. Perform TEST VER-5A .
O2S 2/2 CONNECTOR WIRE IDENTIFICATION (HARNESS SIDE)
| Application | Wire Color | |
|---|---|---|
| O2S 2/2 Sensor Signal Circuit | ||
| Avenger & Sebring Coupe V6 | White/Red | |
| O2S 2/2 Sensor Ground Circuit | ||
| Avenger & Sebring Coupe V6 | Black/Dark Green | |
PCM CONNECTOR WIRE IDENTIFICATION
| Application | Wire Color | |
|---|---|---|
| PCM Terminal No. 1 (O2S 2/2 Signal Circuit) | ||
| Avenger & Sebring Coupe V6 | White/Red | |