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Diagnostic Procedure

WARNING: This page is about a different car, the 2014 Mazda 6. 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 7.
2 VERIFY DSC HU/CM DTCs 
Yes Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .)
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 [SKYACTIV-G 2.5] .)
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 6.
(See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION .)
(See REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION .)
5 PERFORM DTC INSPECTION AND VERIFY PCM MALFUNCTION 
Yes Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.5] .)
No Go to Step 7.
6 VERIFY THAT REPAIRS HAVE BEEN COMPLETED 
Yes Repeat the inspection from Step 1.

Go to the next step.
No Go to the next step.
7 VERIFY IF OTHER DTCs DISPLAYED 
  • Are any 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.