Engine - MIL ON, DTCs P0015/P0524

Bulletin No: 01-003/13

Last Issued: 01/16/2013

Subject:

ROUGH IDLE WITH MIL ON AND DTC P0015 / P0524

BULLETIN NOTE

*^ This bulletin supercedes the previous bulletin 01-028/12 issued on 12/19/13. The WARRANTY INFORMATION has been revised.

^ Changes are noted by asterisks or blacks bars in the margin. *

APPLICABLE MODEL(S)/VINS

2012-2013 Mazda3 2.0L SKYACTIV

2013 CX-5

DESCRIPTION

Some vehicles may experience a rough idle with the MIL on and DTC P00151 P0524 stored in memory.

^ P0015:00 - Exhaust CMP timing over-retarded

^ P0524:00 - Engine oil pressure too low

This is caused by a drop in engine oil pressure due to a piece of foreign object stuck on the oil pump pressure relief valve or OCV. The temporary entry of the foreign object triggers a MIL illumination, but rough idle will not be produced until a later time.

Customers having this concern should have their vehicle repaired using the following flow charts and repair procedure.

FLOWCHARTS

REPAIR PROCEDURE

1. Verify customer concern.

Only P0015 is stored:

1. Delete the DTC.

2. Depress the throttle pedal and momentarily adjust the engine speed to 4,000 rpm or more for 10 times.

3. Measure the main line oil pressure at 650 rpm, 1,500 rpm and 4,500 rpm. Refer to MS3 online instructions or Workshop Manual section 01-11 OIL PRESSURE INSPECTION.

a. Connect M-MDS to monitor ECT OIL_TEMP and RPM.

b. Start the engine and turn off all electrical loads such as A/C, headlights, etc.

c. Warm up the engine until ECT and OIL_TEMP reach 90 °C (194 °F) or more.

d. Turn off all electrical loads such as A/C and headlights.

e. Wait until RPM on IDS becomes stable at 650 rpm. DO NOT read RPM on the tachometer in the vehicle.

f. Measure and write down the main oil line pressure at 650 rpm, 1,500 rpm and 4,500 rpm.

^ If Abnormal oil pressure is observed:

1) Replace the oil pump and clean the bottom of the oil pan with a clean cloth. Refer to M53 online instructions or Workshop Manual section 01-11 OIL PUMP REMOVAL/INSTALLATION.

2) Replace the engine oil.

NOTE:

There is no need to replace the oil filter, strainer (including gasket), or oil pan.

^ If Normal oil pressure is observed:

1) Verify that the difference of VT_EX_DES (Exhaust valve opening angle -target) and VT_EX-ACT (Exhaust valve opening angle - actual) is within 5 degrees (between 1,500 rpm and 2,000 rpm) using M-MDS.

^ Within 5 degrees:

1) Clean the bottom of the oil pan (with a clean cloth) and the strainer.

2) Replace the engine oil.

NOTE:

There is no need to replace the oil filter, strainer (including gasket), or oil pan.

^ Over 5 degrees:

1) Replace the oil control valve (OCV) with a new one.

2) Clean the bottom of the oil pan (with a clean cloth) and the oil strainer.

3) Replace the engine oil.

NOTE:

There is no need to replace the oil filter, strainer (including gasket), or oil pan.

4. Verify repair.

P0015 and P0524 or only P0524 is stored:

1. Delete the DTC.

2. Depress the throttle pedal and momentarily adjust the engine speed to 4,000 rpm or more for 10 times.

3. Measure the main line oil pressure at 650 rpm, 1 500 rpm and 4,500 rpm. Refer to MS3 online instructions or Workshop Manual section 01-11 OIL PRESSURE INSPECTION.

a. Connect M-MDS to monitor ECT OIL_TEMP and RPM.

b. Start the engine and turn off all electrical loads such as A/C, headlights, etc.

c. Warm up the engine until ECT and OIL_TEMP reach 90 °C (194 °F) or more.

d. Turn off all electrical loads such as A/C and headlights.

e. Wait until RPM on IDS becomes stable at 650 rpm. DO NOT read RPM on the tachometer in the vehicle.

PART(S) INFORMATION

WARRANTY INFORMATION

Disclaimer