DTC P1685 [13B-MSP]

DTC REFERENCE CHART

DTC P1685	Metering oil pump oil pressure sensor-oil pressure is high
DETECTION CONDITION	It is that the oil pressure at the metering oil pump system is more than 180 kPa {1.84 kg/cm ² , 26.1 psi} continues for 10 s , after specified period passes after the engine starts. Diagnostic support note This is a continuous monitor (Other.) The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle. FREEZE FRAME DATA is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	Oil pressure sensor malfunction (abnormal characteristic) Oil pump malfunction (oil pressure regulator stuck close) Metering oil pump drain passage clogged OCV malfunction (stuck open) PCM malfunction

DTC P1685

Metering oil pump oil pressure sensor-oil pressure is high

DETECTION CONDITION

It is that the oil pressure at the metering oil pump system is more than 180 kPa {1.84 kg/cm ² , 26.1 psi} continues for 10 s , after specified period passes after the engine starts.
Diagnostic support note
This is a continuous monitor (Other.)
The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.

POSSIBLE CAUSE

Oil pressure sensor malfunction (abnormal characteristic)
Oil pump malfunction (oil pressure regulator stuck close)
Metering oil pump drain passage clogged
OCV malfunction (stuck open)
PCM malfunction

DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED Has FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY 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.
2		No	Go to the next step.
3	VERIFY RELATED PENDING CODE OR STORED DTC Turn the ignition switch off, then to the ON position (engine off.) Verify the related PENDING CODE or stored DTCs. Are other DTCs present?	Yes	Go to the appropriate DTC inspection. (See DTC TABLE [13B-MSP] .)
3		No	Go to the next step.
4	VERIFY THAT METERING OIL PUMP SYSTEM RELATED DTC Turn the ignition switch off, then to the ON position (engine off.) Verify the related PENDING CODE or stored DTCs. Is the DTC P0522, P0523, P1680, P1681, P1682, P1683, P1686 or P1687 present?	Yes	Go to the appropriate DTC inspection. (See DTC TABLE [13B-MSP] .)
4		No	Go to the next step.
5	VERIFY WHETHER MALFUNCTION IS IN OIL PRESSURE SENSOR ABNORMAL CHARACTER OR ELSEWHERE Monitor the PID MOP_P_ACT using the M-MDS PID/data monitor function while the ignition switch is ON (engine off.) (See ON-BOARD DIAGNOSTIC TEST [13B-MSP] .) Is the PID MOP P ACT value more than 0 kPa?	Yes	Replace the oil pressure sensor, then go to Step 9. (See OIL PRESSURE SENSOR REMOVAL/INSTALLATION [13B-MSP] .)
5		No	Go to the next step.
6	INSPECT OIL PRESSURE Perform the "OIL PRESSURE INSPECTION". (See OIL PRESSURE INSPECTION [13B-MSP] .) Is the oil pressure within the specified?	Yes	Go to the next step.
6		No	Replace the oil pressure regulator, then go to Step 9.
7	VERIFY THAT METERING OIL PUMP DRAIN PASSAGE Verify that the metering oil pump drain passage for clogged. Is there a clog in the oil drain passage?	Yes	Repair or replace the malfunctioning part, then go to Step 9.
7		No	Go to the next step.
8	INSPECT OCV Inspect the OCV. (See OIL CONTROL VALVE (OCV) INSPECTION [13B-MSP] .) Is there any malfunction?	Yes	Replace the OCV, then go to the next step. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [13B-MSP] .)
8		No	Go to the next step.
9	VERIFY TROUBLESHOOTING OF DTC P1685 COMPLETED Make sure to reconnect all disconnected connectors. Clear the DTC from the PCM memory using the M-MDS. Start the engine and warm it up completely. Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [13B-MSP] .)
9		No	Go to the next step.
10	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE [13B-MSP] .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [13B-MSP] .)
10		No	DTC troubleshooting completed.