Engine & fuel system
2 documented faults — symptoms, causes and workshop fixes.
Engine malfunction indicator lamp (MIL) illuminates under light engine load whilst driving up hill. Trouble code stored: P049B
Engine control module (ECM) software fault. Fix: re-program with updated software.
Overview
- Affects
- All models with 3.3 Diesel engine, →06/23.
- Remedy
- Software update
Repair steps
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program engine control module (ECM) with upgraded software.
- Erase any stored trouble codes. Note: To carry out an effective repair a software upgrade will be required - refer to manufacturer.
Data: Motorwise Workshop. Bulletin 1.
Engine malfunction indicator lamp (MIL) illuminates during stop-start system operation. Trouble code stored: P0488
Engine control module (ECM) software fault. Fix: re-program with updated software.
Overview
- Affects
- All models with 3.3 Diesel engine and stop-start system, →06/23.
- Fault codes
P0488- Remedy
- Software update
Repair steps
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program engine control module (ECM) with upgraded software.
- Erase any stored trouble codes. Note: To carry out an effective repair a software upgrade will be required - refer to manufacturer.
Data: Motorwise Workshop. Bulletin 2.
Body & trim
2 documented faults — symptoms, causes and workshop fixes.
Tailgate automatic open/close function not working
Software fault in tailgate control module. Fix: re-program with updated software.
Overview
- Affects
- All models with tailgate automatic open/close function, →12/22.
- Remedy
- Software update
Symptoms
Tailgate releases but does not open.
Repair steps
- Manually fully open tailgate. If necessary, manually release tailgate from inside the car.
- Reset tailgate control module by removing fuse F15 from engine bay fuse box/relay plate for 10 seconds.
- Manually fully close tailgate.
- Ensure tailgate automatic open/close function operates correctly.
- Re-program tailgate control module with upgraded software.
- Erase any stored trouble codes. Note: To carry out an effective repair a software upgrade will be required - refer to manufacturer.
Data: Motorwise Workshop. Bulletin 3.
Water leaking into vehicle from front overhead storage compartment
Sunroof water drain tube kinked or restricted at base of A pillar.
Overview
- Affects
- All models with sunroof, →07/23.
Repair steps
- Locate sunroof water drain tubeat base of A pillar.
- If sunroof water drain tube is not permanently kinked, route correctly.
- If sunroof water drain tube has permanent kink, replace sunroof water drain tube and route correctly.
- Repeat procedure for opposite side.
Data: Motorwise Workshop. Bulletin 4.
Glossary
Technical terms used in this guide.
- ECM
- Engine control module — the electronic unit that manages the engine
- Trouble Codes
- Standardised fault codes stored by the engine control module, read with a diagnostic tool
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- Re-Program
- Update the software on a control module using the manufacturer's diagnostic tool
- Relay
- An electrically operated switch
- Stop-Start
- The system that cuts the engine at idle and restarts it when you pull away
Frequently asked questions
What are the common faults with the Mazda CX-60 3.3 MHEV?
This guide contains four workshop bulletins for the Mazda CX-60 3.3 MHEV. Of these, two concern the engine and fuel system and two the body and trim. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Mazda CX-60 3.3 MHEV have these faults?
No. These are patterns documented across the model by workshops, not predictions for an individual vehicle. Where a fault applies only to certain vehicles or VIN ranges, that is listed with the fault.
Can I check for Mazda CX-60 3.3 MHEV faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.