Some customers may complain about poor heater performance even after the engine reaches normal operating...
Mazda technical service bulletin 07-007-17-3384 for 2014-2018 Mazda MAZDA3, 2013-2017 Mazda CX-5 and 2014-2018 Mazda MAZDA6.
- Bulletin number
- 07-007-17-3384
- Component
- Equipment: appliance: air conditioner
- Summary
- Some customers may complain about poor heater performance even after the engine reaches normal operating temperature. This may be caused by a clogged heater unit. For Mazda6 and CX-5, the check engine light may illuminate with the DTC P011A:00 stored at the same time. P011A:00 ECT sensor No.1/No.2 performance problem. NOTE: Refer to TSB 01-015/15 if the customer is using a block heater at temperatures below freezing.
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