P1189

DTC P1189

CIRCUIT DESCRIPTION
With low oil pressure, the engine oil pressure switch closes, and the signal circuit is low. With oil pressure above 4.5 psi, the engine oil pressure switch opens, and the signal circuit is high. The PCM monitors the oil pressure switch signal circuit and sends a class 2 message to the IPC indicating the switch status.

CONDITIONS FOR RUNNING THE DTC
- DTC P0117 is not set.
- DTC P0118 is not set.
- DTC P1111 is not set.
- DTC P1114 is not set.
- The ignition is ON, with the engine OFF.
- Engine temperature at the last shutdown was at least 80°C (176°F).

CONDITIONS FOR SETTING THE DTC
- The PCM detects that the oil pressure switch signal circuit is high.
- The above condition is present for greater than 10 seconds.

ACTION TAKEN WHEN THE DTC SETS
The PCM stores the conditions that are present when the DTC sets. This information is stored as Failure Records data only. This information is not stored as Freeze Frame data.

CONDITIONS FOR CLEARING THE DTC
- The DTC becomes history when the conditions for setting the DTC are no longer present.
- The history DTC clears after 40 malfunction free warm-up cycles.
- The PCM receives the clear code command from the scan tool.

TEST

Steps 1-4:

Steps 5-10: