P2080-EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE
 |
For a complete wiring diagram, refer to the Wiring Information.
-
When Monitored:
With the engine running.
-
Set Condition:
The Exhaust Gas Temperature Sensor 1/1 Signal is implausible for 2.0 seconds.
Possible Causes |
|---|
| (K384) EXHAUST GAS TEMPERATURE SENSOR 1/1 SIGNAL CIRCUIT OPEN/HIGH RESISTANCE |
| EXHAUST GAS TEMPERATURE SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
| 1. | Turn the ignition on, engine not running. |
| 2. | Start the engine and allow it to reach operating temperature. |
| 3. | With the scan tool, select View DTCs. |
Is the status Active for this DTC?
Yes
- Go To 2
No
- Perform the INTERMITTENT DTC diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
2. CHECK THE (K384) EXHAUST TEMPERATURE SENSOR 1/1 SIGNAL FOR AN OPEN/HIGH RESISTANCE
 |
| 1. | Turn the ignition off. |
| 2. | Disconnect the Exhaust Gas Temperature Sensor 1/1 harness connector. |
| 3. | Disconnect the PCM C1 harness connector. |
| 4. | Measure the resistance of the (K384) Exhaust Gas Temperature Sensor 1/1 Signal circuit between the Exhaust Gas Temperature Sensor 1/1 harness connector and the PCM C1 harness connector. |
Is the resistance below 5.0 Ohms?
Yes
- Go To 3
No
- Repair the (K384) Exhaust Gas Temperature Sensor 1/1 Signal circuit for an open or high resistance.
-
Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM)
- Standard Procedure).
3. EXHAUST GAS TEMPERATURE SENSOR 1/1
| 1. | Turn the ignition off. |
| 2. | Replace the Exhaust Gas Temperature Sensor 1/1. |
| 3. | Reconnect the PCM C1 harness connector. |
| 4. | Start the engine and allow it to reach operating temperature. |
| 5. | With the scan tool, select View DTCs. |
Did the DTC return?
Yes
- Go To 4
No
- Repair complete.
- Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
| 1. | Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Exhaust Gas Temperature Sensor 1/1 and the Powertrain Control Module. |
| 2. | Look for any chafed, pierced, pinched, or partially broken wires. |
| 3. | Look for broken, bent, pushed out or corroded terminals. |
| 4. | Perform any Technical Service Bulletins that may apply. |
Were any problems found?
Yes
- Repair as necessary.
- Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
No
- Replace the Powertrain Control Module in accordance with the service information.
- Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).