Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMAZDA20132 TOURING, 1.5L ENG VIN Z, AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM MZR 1.5]DTC P0012:00: CMP TIMING OVER-RETARDEDDIAGNOSTIC PROCEDURE

2013 Mazda 2 Touring, 1.5L Eng VIN Z, Automatic Trans

Diagnostic Procedure

2013 Mazda 2 Touring, 1.5L Eng VIN Z, Automatic TransSECTION Diagnostic Procedure

DTC DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA (Mode 2)/snapshot 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 AND/OR DTC Switch the ignition to off, then to ON (engine off). Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST [MZR 1.5] ). Is the PENDING CODE/DTC P2088:00 or P2089:00 also present?	Yes	Go to the applicable PENDING CODE or DTC inspection. (See DTC P2088:00 [MZR 1.5] ). (See DTC P2089:00 [MZR 1.5] ).
3		No	Go to the next step.
4	VERIFY ENGINE OIL PRESSURE Start the engine. Does the oil pressure warning light illuminate?	Yes	Inspect the engine oil pressure. (See OIL PRESSURE INSPECTION [MZR 1.5] ). Repair or replace the malfunctioning part according to the inspection results, then go to Step 10.
4		No	Go to the next step.
5	INSPECT INSTALLATION OF TIMING CHAIN Stop the engine. Inspect the installation of timing chain. (See TIMING CHAIN REMOVAL/INSTALLATION [MZR 1.5] ). Is the camshaft timing mark at the correct point?	Yes	Go to the next step.
5		No	Reinstall the timing chain, then go to Step 10. (See TIMING CHAIN REMOVAL/INSTALLATION [MZR 1.5] ).
6	INSPECT OCV Inspect the OCV. (See OIL CONTROL VALVE (OCV) INSPECTION [MZR 1.5] ). Is there any malfunction?	Yes	Replace the OCV, then go to Step 10. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 1.5] ).
6		No	Go to the next step.
7	INSPECT STOPPER PIN MECHANISM Remove the timing chain. (See TIMING CHAIN REMOVAL/INSTALLATION [MZR 1.5] ). Inspect the stopper pin mechanism. (See VARIABLE VALVE TIMING ACTUATOR INSPECTION [MZR 1.5] ). Is there any malfunction?	Yes	Replace the variable valve timing actuator, then go to Step 10. (See VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION [MZR 1.5] ).
7		No	Go to the next step.
8	INSPECT ROTOR POSITION Remove the variable valve timing actuator. (See VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION [MZR 1.5] ). Is the rotor at the maximum valve timing retard position?	Yes	Replace the variable valve timing actuator, then go to Step 10. (See VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION [MZR 1.5] ).
8		No	Variable valve timing mechanism is normal. NOTE: This DTC is detected as an intermittent concern. The intermittent concern might be removed using the cleaning mode of the variable valve timing control function. Go to the next step.
9	INSPECT ENGINE OIL RUNNER Inspect the following engine oil runners for clogging or leakage: Between oil pressure switch and OCV Between OCV and variable valve timing actuator In variable valve timing actuator Is there any clogging or leakage?	Yes	Repair or replace the suspected runner, then go to the next step.
9		No	Variable valve timing mechanism is normal. NOTE: This DTC is detected as an intermittent concern. The intermittent concern might be removed using the cleaning mode of the variable valve timing control function. Go to the next step.
10	VERIFY DTC TROUBLESHOOTING COMPLETED Make sure to reconnect all disconnected connectors. Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [MZR 1.5] ). Start the engine. Access the RPM PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZR 1.5] ). Warm up the engine completely. Turn off all electrical roads. Increase and keep the engine speed 2,500 rpm or more for 10 s. Perform the KOER self test. (See KOEO/KOER SELF TEST [MZR 1.5] ). Is the PENDING CODE for this DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZR 1.5] ). 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 [MZR 1.5] ). Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR 1.5] ).
11		No	DTC troubleshooting completed.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.