DTC P0872:00

Oil pressure switch No.3 (Oil pressure switch A) stuck on

DETECTION CONDITION

• Under the following conditions, oil pressure switch No.3 stuck-on detected by combination of gear ratio malfunction and oil pressure switch pattern malfunction:

• Engine is running.

• ATF temperature is 20 °C {68 °F} or more.

• There is no difference between vehicle speed signal from DSC HU/CM and output shaft speed sensor signal.

• Turbine/input shaft speed sensor and output shaft speed sensor DTC is not recorded.

Diagnostic support note

• The check engine light illuminates if the TCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the TCM.

• The automatic transaxle warning light illuminates if the TCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the TCM.

• PENDING CODE is available.

• FREEZE FRAME DATA is available.

• DTC is stored in the TCM memory.

FAIL-SAFE FUNCTION

• Limits engine torque.

• Inhibits learning control.

• Inhibits manual mode.

• Inhibits neutral idle control.

• Inhibits AAS.

POSSIBLE CAUSE

• Oil pressure switch No.3 malfunction

SYSTEM WIRING DIAGRAM

Not applicable

STEP

INSPECTION

ACTION

1

• Is the DTC P1738:00 also present?

Yes

Go to the applicable DTC inspection.

(See DTC P1738:00 [FW6A-EL].)

No

Go to the next step.

2

• Has the freeze frame data/snapshot data been recorded on the repair order?

Yes

Go to the next step.

No

Record the freeze frame data/snapshot data on the repair order, then go to the next step.

3

• Verify related Service Bulletins and/or on-line repair information availability.

• Is any related repair information available?

Yes

Perform repair or diagnosis according to the available repair information.

• If the vehicle is not repaired, go to the next step.

No

Go to the next step.

4

• Perform the following procedure to ensure that the DTC has been resolved:

• Start the engine.

• Verify that the ATF temperature is 55 °C {131 °F} or more.

• Perform the on-board diagnostic test.

  (See ON-BOARD DIAGNOSTIC TEST MODE [FW6A-EL].)

• Are P0872:00 present?

Yes

Replace the oil pressure switch No.3, then go to the next step.

(See OIL PRESSURE SWITCH REMOVAL/INSTALLATION [FW6A-EL])

No

No DTCs are displayed:

• Drive the vehicle to check it, and if there is no problem then the DTC troubleshooting is complete.

If a DTC other than the one indicated on the left is displayed:

• Go to the applicable DTC inspection.

  (See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FW6A-EL].)

5

• Perform the following procedure to ensure that the DTC has been resolved:

• Start the engine.

• Verify that the ATF temperature is 55 °C {131 °F} or more.

• Perform the on-board diagnostic test.

  (See ON-BOARD DIAGNOSTIC TEST MODE [FW6A-EL].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FW6A-EL].)

No

DTC troubleshooting completed.