Circuit Description
The engine oil level (EOL) switch is a simple float-type switch. The switch grounds when the oil level is at the proper level. The PCM applies an ignition voltage to the switch input circuit through a pull-up resistor. With the ignition turned ON, and the engine OFF, the PCM should detect a low voltage input on the switch circuit. With the engine running, the PCM should detect a transition from a low voltage to a high voltage input on the switch circuit. If the PCM detects a low signal voltage (full oil level), and/or the PCM does not detect a switch transition with the engine running, DTC P1617 will set.
Conditions for Running the DTC
| • | TP sensor, or VSS DTCs are not set |
| • | The throttle position is more than 5 |
| • | The vehicle speed is more than 5 km/h (3 mph). |
| • | The engine speed is more than 2000 RPM. |
| • | The vehicle is in steady state cruise (no lateral acceleration). |
Conditions for Setting the DTC
The PCM detects a low signal voltage, and/or no transition of the switch for at least 8 seconds.
Action Taken When the DTC Sets
| • | The PCM will not illuminate the malfunction indicator lamp (MIL). |
| • | The PCM will store the conditions present when the DTC set as Failure Records data only. |
Conditions for Clearing the MIL/DTC
| • | The history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction. |
| • | The DTC can be cleared by using the scan tool Clear DTC Information function. |
Step | Action | Values | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Powertrain On-Board Diagnostic (OBD) System Check? | -- | ||
2 | Are any other DTCs set? | -- | ||
3 |
Important: Check the engine oil level as indicated on the engine oil level indicator. If the condition is found, correct as necessary.
Does the engine oil display LOW? | -- | Go to Diagnostic Aids | |
4 |
Does the engine oil level display LOW? | -- | ||
5 |
Did you find and correct the condition? | -- | ||
6 | Replace the engine oil level switch. Is the action complete? | -- | -- | |
7 |
Important: The replacement PCM must be programmed. Replace the PCM. Refer to Powertrain Control Module Replacement/Programming . Is the action complete? | -- | -- | |
8 |
Does the scan tool indicate that DTC P1617 passed? | -- | System OK |
