LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2021 >> CX-5 Sport, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (On-Board Diagnostic - Engine Control (VIN Y) (1 Of 3)) >> DTC P0015-00: Hydraulic Variable Valve Timing Control System: Over-Retarded >> Troubleshooting Diagnostic Procedure >> Intention of troubleshooting procedure

Intention of troubleshooting procedure

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

STEP INSPECTION RESULTS ACTION
1 PURPOSE: VERIFY IF SPOOL VALVE IN OCV IS STUCK
Yes Go to the next step.
No Replace the OCV, then go to Step 9.
(See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [VIN Y] .)
2 PURPOSE: INSPECT ENGINE OIL LEVEL
Yes Go to the next step.
No Add genuine engine oil, then go to Step 9.
(See ENGINE OIL REPLACEMENT [VIN Y] .)
3 PURPOSE: DETERMINE INTEGRITY OF HYDRAULIC VARIABLE VALVE TIMING ACTUATOR
Yes Replace the hydraulic variable valve timing actuator, then go to Step 9.
(See ELECTRIC VARIABLE VALVE TIMING ACTUATOR, HYDRAULIC VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION [VIN Y] .)
No Go to the next step.
4 PURPOSE: VERIFY ASSEMBLY CONDITION OF TIMING CHAIN
Yes Repair or replace the malfunctioning part.
Assemble the timing chain using the correct timing, then go to Step 9.
(See TIMING CHAIN REMOVAL/INSTALLATION [VIN Y] .)
No Go to the next step.
5 PURPOSE: VERIFY IF FOREIGN MATTER ON EXHAUST CMP SENSOR DETECTION AREA AFFECTS DIAGNOSTIC RESULTS
Yes Remove the foreign matter, then go to Step 9.
No Go to the next step.
6 PURPOSE: INSPECT IF INSUFFICIENT HYDRAULIC PRESSURE CAUSED BY USE OF UNSPECIFIED ENGINE OIL
  • Is the specified engine oil being used?
Yes Go to the next step.
No Replace the engine oil with genuine engine oil, then go to Step 9.
(See ENGINE OIL REPLACEMENT [VIN Y] .)
7 PURPOSE: INSPECT ENGINE OIL PRESSURE
Yes Go to the next step.
No Go to Step 9.
8 PURPOSE: VERIFY IF MALFUNCTION RELATED TO ENGINE OIL LEAK OR RESTRICTION AFFECTS DIAGNOSTIC RESULTS
  • Start the engine.
  • Verify if there is engine oil leakage in the oil passage or restriction.
  • Is there engine oil leakage in the oil passage or restriction?
Yes Repair or replace the malfunctioning part according to the inspection results. Add genuine engine oil, then go to the next step.
(See ENGINE OIL REPLACEMENT [VIN Y] .)
No Go to the next step.
9 PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION
Yes Repeat the inspection from Step 1.

Go to the next step.
No Go to the next step.
10 PURPOSE: VERIFY IF THERE IS ANY OTHER MALFUNCTION
  • Is any other DTC or pending code stored?
Yes Go to the applicable DTC inspection.
(See DTC TABLE .)
No DTC troubleshooting completed.