Diagnostic Procedure
WARNING: This page is about a different car, the 2024 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
DTC U2005:68 (FRONT BODY CONTROL MODULE) DIAGNOSTIC PROCEDURE
| Step | Inspection | Action | |
|---|---|---|---|
| 1 | VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs AGAIN
|
Yes | Go to the next step. |
| No | Go to Step 8. | ||
| 2 | VERIFY DSC HU/CM DTCs
|
Yes | Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [DSC HU/CM] .) |
| No | Go to the next step. | ||
| 3 | VERIFY PCM DTCs
|
Yes | Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (VIN Y)] .) (See DTC TABLE [PCM (VIN L (WITHOUT CYLINDER DEACTIVATION))] .) (See DTC TABLE [PCM (VIN M (WITH CYLINDER DEACTIVATION))] .) |
| No | Go to the next step. | ||
| 4 | INSPECT ABS WHEEL-SPEED SENSOR
|
Yes | Go to the next step. |
| No | Replace the ABS wheel-speed sensor, then go to Step 7. (See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION .) (See REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION [AWD] .) |
||
| 5 | VERIFY IF MALFUNCTIONING LOCATION IS DSC HU/CM DEPENDING ON REPEATABILITY
|
Yes | Replace the DSC HU/CM, then go to the next step. (See DSC HU/CM REMOVAL/INSTALLATION [VIN Y] .) (See DSC HU/CM REMOVAL/INSTALLATION [VIN M (WITH CYLINDER DEACTIVATION)] .) (See DSC HU/CM REMOVAL/INSTALLATION [VIN L (WITHOUT CYLINDER DEACTIVATION)] .) |
| No | Go to Step 8. | ||
| 6 | VERIFY IF MALFUNCTIONING LOCATION IS PCM DEPENDING ON REPEATABILITY
|
Yes | Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [VIN Y] .) (See PCM REMOVAL/INSTALLATION [VIN L (WITHOUT CYLINDER DEACTIVATION)] .) (See PCM REMOVAL/INSTALLATION [VIN M (WITH CYLINDER DEACTIVATION)] .) |
| No | Go to Step 8. | ||
| 7 | VERIFY THAT REPAIRS HAVE BEEN COMPLETED
|
Yes | Repeat the inspection from Step 1.
|
| No | Go to the next step. | ||
| 8 | VERIFY IF OTHER DTCs DISPLAYED
|
Yes | Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [FRONT BODY CONTROL MODULE (FBCM)] .) |
| No | DTC troubleshooting completed. | ||