Mazda Fender Grounding: UPDATE

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Mazda Fender Grounding: UPDATE

Posted on 18 July 2024 | Share: |

A major issue that faces many collision repair technicians is comebacks. With modern vehicles, many of those comebacks are due to electrical problems, bad grounds being a huge contender. Mazda has identified this as a common problem and originally issued a technical service bulletin (TSB) on the subject but now includes the information in vehicle-specific procedures.

When researching Mazda vehicle-specific repair procedures you may find the Front Fender Stay Paint Procedure [Paint Procedure]. This procedure is located in vehicle-specific Bodyshop Manuals ➤ Body And Accessories ➤ Body Structure ➤ Paint Procedure ➤ Front Fender Stay Paint Procedure.

Per Mazda vehicle-specific repair information:

"For the front fender stay, if paint gets on the shaded area shown in the figure, it could cause a poor ground and the powertrain control module (PCM) may not function normally causing a malfunction such as engine stalls or cannot be restarted."
"...always use a ground bolt for the bolt used in assembling the shaded area."
"Paint the front fender stay with the masking tape left applied."
"Apply touch-up paint to the exposed base material area on the seating surface after tightening the ground bolt to prevent rust."

If there is a ground issue, changing out parts does not necessarily fix the problem. To prevent creating a bad ground connection, attention to detail, and following OEM procedures is required.

For additional Mazda information, check out the Mazda OEM Information page.

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