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Service bulletins for the 2004 Mazda Mazda6

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

220 on file from NHTSA, as of 2026-10-19.

About P2135 on the 2004 Mazda Mazda6: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P2135 are shown. Show all

Bulletins, newest first
01-015-13-2796A2017-04-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME VEHICLES MAY EXPERIENCE A MIL ILLUMINATION WITH DTC P2135 STORED IN MEMORY OR DTCS P0123 AND/OR P0222 AFTER THE THROTTLE BODY HAS BEEN REPLACED.•DTC P2135: THROTTLE POSITION SENSOR NO.1 / NO. 2 VOLTAGE CORRELATION•DTC P0123: THROTTLE POSITION SENSOR NO.1 CIRCUIT HIGH INPUT•DTC P0222: THROTTLE POSITION SENSOR NO.2 CIRCUIT LOW INPUTDTCS P0123 AND/OR P0222 MAY BE STORED IMMEDIATELY (OR SOME TIME LATER) AFTER INSTALLING A NEW THROTTLE BODY WITH EITHER PART NUMBER AJ57-13-640D OR AJT1-13-640. THIS IS DUE TO AN ABNORMAL ELECTRICAL NOISE WITHIN THE ENGINE HARNESS OF CERTAIN VEHICLES. THIS CONDITION CAN BE PREVENTED OR CORRECTED BY INSTALLING THE THROTTLE BODY HARNESS (WITH DIODE) AS DESCRIBED IN THIS SERVICE BULLETIN.NOTE:THE THROTTLE BODY HARNESS (WITH DIODE) SHOULD ONLY BE USED TO CORRECT DTCS P0123 AND/OR P0222 THAT WERE SET AFTER THE THROTTLE BODY WAS REPLACED. VEHICLES THAT HAVE STORED DTCS P0123 AND/OR P0222 WITHOUT A THROTTLE BODY REPLACEMENT SHOULD BE DIAGNOSED AND REPAIRED ACCORDING TO THE WORKSHOP MANUAL, NOT THIS SERVICE BULLETIN.
01-015-13-27962017-04-14. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME VEHICLES MAY EXPERIENCE A MIL ILLUMINATION WITH DTC P2135 STORED IN MEMORY OR DTCS P0123 AND/OR P0222 STORED AFTER THE THROTTLE BODY HAS BEEN REPLACED. • DTC P2135: THROTTLE POSITION SENSOR NO.1 / NO. 2 VOLTAGE CORRELATION • DTC P0123: THROTTLE POSITION SENSOR NO.1 CIRCUIT HIGH INPUT • DTC P0222: THROTTLE POSITION SENSOR NO.2 CIRCUIT LOW INPUT DTCS P0123 AND/OR P0222 MAY BE STORED IMMEDIATELY (OR SOME TIME LATER) AFTER INSTALLING A NEW THROTTLE BODY WITH EITHER PART NUMBER AJ57-13-640D OR AJT1-13-640. THIS IS DUE TO AN ABNORMAL ELECTRICAL NOISE WITHIN THE ENGINE HARNESS OF CERTAIN VEHICLES. THIS CONDITION CAN BE PREVENTED OR CORRECTED BY INSTALLING A SHORT CORD (WITH DIODE) AS DESCRIBED IN THIS SERVICE BULLETIN. NOTE: A SHORT CORD (WITH DIODE) SHOULD ONLY BE USED TO CORRECT DTCS P0123 AND/OR P0222 THAT WERE SET AFTER THE THROTTLE BODY WAS REPLACED. VEHICLES THAT HAVE STORED DTCS P0123 AND/OR P0222 WITHOUT A THROTTLE BODY REPLACEMENT SHOULD BE DIAGNOSED AND REPAIRED ACCORDING TO THE WORKSHOP MANUAL, NOT THIS SERVICE BULLETIN.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.