Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.

DTC P250C:00 (PCM, VIN Y) DIAGNOSTIC PROCEDURE

STEP	INSPECTION	RESULTS	ACTION
1	RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION NOTE: Recording can be facilitated using the screen capture function of the PC. Record the snapshot data on the repair order.	-	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	INSPECT ENGINE OIL LEVEL SENSOR CONNECTOR CONDITION Switch the ignition off. Disconnect the engine oil level sensor connector. Inspect for poor connection (such as damaged/pulled-out pins, corrosion). Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 10.
3		No	Go to the next step.
4	INSPECT ENGINE OIL LEVEL SENSOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND OR OPEN CIRCUIT Verify that the engine oil level sensor connector is disconnected. Switch the ignition ON (engine off). NOTE: Another DTC may be stored by the PCM detecting an open circuit. Measure the voltage at the engine oil level sensor terminal A (wiring harness-side). Is the voltage B+?	Yes	Go to the next step.
4		No	Inspect the ENGINE3 15 A fuse. If the fuse is blown: Refer to the wiring diagram and verify whether or not there is a common connector between ENGINE3 15 A fuse and engine oil level sensor terminal A. If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has a short to ground. Replace the fuse. If the fuse is damaged: Replace the fuse. If the fuse is normal: Refer to the wiring diagram and verify whether or not there is a common connector between main relay terminal C and engine oil level sensor terminal A. If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has an open circuit. Go to Step 10.
5	INSPECT PCM CONNECTOR CONDITION Switch the ignition off. Disconnect the PCM connector. Inspect for poor connection (such as damaged/pulled-out pins, corrosion). Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 10.
5		No	Go to the next step.
6	INSPECT ENGINE OIL LEVEL SENSOR LIN COMMUNICATION LINE FOR SHORT TO GROUND Verify that the engine oil level sensor and PCM connectors are disconnected. Inspect for continuity between the engine oil level sensor terminal C (wiring harness-side) and body ground. Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between engine oil level sensor terminal C and PCM terminal 2BG. If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has a short to ground. Go to Step 10.
6		No	Go to the next step.
7	INSPECT ENGINE OIL LEVEL SENSOR LIN COMMUNICATION LINE FOR SHORT TO POWER SUPPLY Verify that the engine oil level sensor and PCM connectors are disconnected. Switch the ignition ON (engine off). NOTE: Another DTC may be stored by the PCM detecting an open circuit. Measure the voltage at the engine oil level sensor terminal C (wiring harness-side). Is the voltage 0 V?	Yes	Go to the next step.
7		No	Refer to the wiring diagram and verify whether or not there is a common connector between engine oil level sensor terminal C and PCM terminal 2BG. If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has a short to power supply. Go to Step 10.
8	INSPECT ENGINE OIL LEVEL SENSOR LIN COMMUNICATION LINE AND GROUND CIRCUIT FOR SHORT TO EACH OTHER Verify that the engine oil level sensor and PCM connectors are disconnected. Switch the ignition off. Inspect for continuity between engine oil level sensor terminals C and B (wiring harness-side). Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: Engine oil level sensor terminal C-PCM terminal 2BG Engine oil level sensor terminal B-PCM terminal 1CV If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to each other. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has a short to each other. Go to Step 10.
8		No	Go to the next step.
9	INSPECT ENGINE OIL LEVEL SENSOR CIRCUIT FOR OPEN CIRCUIT Verify that the engine oil level sensor and PCM connectors are disconnected. Inspect for continuity between the following terminals (wiring harness-side): Engine oil level sensor terminal C-PCM terminal 2BG Engine oil level sensor terminal B-PCM terminal 1CV Is there continuity?	Yes	Replace the engine oil level sensor, then go to the next step. (See ENGINE OIL LEVEL SENSOR REMOVAL/INSTALLATION [VIN Y] .)
9		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: Engine oil level sensor terminal C-PCM terminal 2BG Engine oil level sensor terminal B-PCM terminal 1CV If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has an open circuit. Go to the next step.
10	VERIFY DTC TROUBLESHOOTING COMPLETED Always reconnect all disconnected connectors. Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC .) Perform the DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST .) Is the same Pending DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [VIN Y] .) Go to the next step.
10		No	Go to the next step.
11	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE .)
11		No	DTC troubleshooting completed.