MT-001-20
Service Bulletin Details
Public Details for: MT-001-20
If you encounter any type of electrical concern (e.G, dead battery, engine no start, dtc(s) stored...), interview the customer before proceeding with normal workshop manual diagnosis. Aftermarket devices may be the cause of the electrical c
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Mazda North American Operations Irvine, CA 92618-2922 M-Tips Subject: M-Tips No.: MT-001/20 ELECTRICAL CONCERN AND/OR MULTIPLE DTC'S DUE TO AFTERMARKET DEVICE Last Issued: 07/15/2020 BULLETIN NOTES This M-Tip supersedes the previously issued article(s) listed below: The changes are noted in Red. Previous M-Tip(s): Date(s) Issued: MT-004/18 03/28/18, 07/20/18, 09/14/18 MT-017/17 11/02/17 MT-013/13 01/01/13 APPLICABLE MODEL(S)/VINS 2011-2014 Mazda2 2007-2020 Mazda6 2007-2012 CX-7 2007-2011 RX-8 2007-2020 Mazda3 2016-2020CX-3 2007-2020 CX-9 2020CX-30 2007-2015 Mazda5 2013-2020 CX-5 2007-2020MX-5 DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal Workshop Manual diagnosis. Aftermarket devices may be the cause of the electrical concern. Ask the customer if any aftermarket devices have been installed. Below are a couple of examples of unusual electrical concerns caused by aftermarket devices. Page 1 of 5 An editorial board comprised of MNAO service staff members generates, collects, and verifies information for this publication. To contribute repair tip ideas, send an e-mail to [email protected]. All contributions become property of MNAO, which assumes permission to publish them without further consideration. © 2020 Mazda North American Operations, U.S.A. 07/16/2020 3:01 PM tlawrenc M-Tips No.: MT-001/20 Last Issued: 07/15/2020 Example 1 Some electrical devices connected to the DLC-2 connector by insurance or mobile phone companies may cause: Battery discharge. The device may disrupt the CAN system battery saver mode. IDS/MMDS will not communicate with the vehicle due to poor DLC-2 connection. The aftermarket device may cause DLC-2 female terminals to spread open. DTCs B1041:54 - ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE C0061:54 - DSC HU/CM C1001:92 - FORWARD SENSING CAMERA (FSC) C1001:97 - FORWARD SENSING CAMERA (FSC) U0415:00 - MAZDA RADAR CRUISE CONTROL (MRCC)/SMART BRAKE SUPPORT (SBS) U0420:00 - MAZDA RADAR CRUISE CONTROL (MRCC)/SMART BRAKE SUPPORT (SBS) U300A:62 - ELECTRIC PARKING BRAKE (EPB) Multiple DTC's (U0xxx:00 Communication error) If you determine that no aftermarket devices have been installed, continue with normal Workshop Manual diagnosis. Page 2 of 5 An editorial board comprised of MNAO service staff members generates, collects, and verifies information for this publication. To contribute repair tip ideas, send an e-mail to [email protected]. All contributions become property of MNAO, which assumes permission to publish them without further consideration. © 2020 Mazda North American Operations, U.S.A. 07/16/2020 3:01 PM tlawrenc M-Tips No.: MT-001/20 Last Issued: 07/15/2020 Key Warning Light Aftermarket Cell Phone Charger connected to 12V outlet Engine Start/Stop Button Amber Indicator Light Flashing (red) Example 3 Some aftermarket devices that are wired to the vehicles’s wiring harness may create unusual electrical symptoms and/or store DTCs. Below are examples of concerns due to an aftermarket GPS tracking device wired to the power window main switch: Engine no start Battery discharge Main relay buzzing Page 3 of 5 An editorial board comprised of MNAO service staff members generates, collects, and verifies information for this publication. To contribute repair tip ideas, send an e-mail to [email protected]. All contributions become property of MNAO, which assumes permission to publish them without further consideration. © 2020 Mazda North American Operations, U.S.A. 07/16/2020 3:01 PM tlawrenc M-Tips No.: MT-001/20 Last Issued: 07/15/2020 Page 4 of 5 An editorial board comprised of MNAO service staff members generates, collects, and verifies information for this publication. To contribute repair tip ideas, send an e-mail to [email protected]. All contributions become property of MNAO, which assumes permission to publish them without further consideration. © 2020 Mazda North American Operations, U.S.A. 07/16/2020 3:01 PM tlawrenc M-Tips No.: MT-001/20 Last Issued: 07/15/2020 Below is an example of a dim headlight. The aftermarket device changed the headlight circuit resistance, causing a dim headlight. Page 5 of 5 An editorial board comprised of MNAO service staff members generates, collects, and verifies information for this publication. To contribute repair tip ideas, send an e-mail to [email protected]. All contributions become property of MNAO, which assumes permission to publish them without further consideration. © 2020 Mazda North American Operations, U.S.A. 07/16/2020 3:01 PM tlawrenc