Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mazda >> 2014 >> CX-5 Touring, 4D Utility, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> On-Board Diagnostic - Front Body Control Module >> DTC B134D: 02 Headlight Control Signal Error >> Diagnostic Procedure

Diagnostic Procedure

DTC B134D:02 (FRONT BODY CONTROL MODULE) DIAGNOSTIC PROCEDURE

Step Inspection Action
1 VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs AGAIN 
  • Clear front body control module (FBCM) DTCs using the M-MDS.

    (See CLEARING DTC .)

  • Switch the ignition ON (engine off or on) and wait for 5 s or more  .
  • Perform the front body control module (FBCM) DTC inspection using the M-MDS.

    (See DTC INSPECTION .)

  • Is DTC B134D:02 displayed?
 Yes Go to the next step.
No Go to Step 4.
2 VERIFY START STOP UNIT DTCs 
 Yes Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [START STOP UNIT] .)
No Go to the next step.
3 VERIFY THAT REPAIRS HAVE BEEN COMPLETED 
  • Clear front body control module (FBCM) DTCs using the M-MDS.

    (See CLEARING DTC .)

  • Switch the ignition ON (engine off or on) and wait for 5 s or more  .
  • Perform the front body control module (FBCM) DTC inspection using the M-MDS.

    (See DTC INSPECTION .)

  • Is DTC B134D:02 displayed?
 Yes Replace the front body control module (FBCM), then go to the next step.
(See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION .)
No Go to the next step.
4 VERIFY IF OTHER DTCs DISPLAYED 
  • Are any other DTCs displayed?
 Yes Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE .)
No DTC troubleshooting completed.
scientia non olet · About Mike's Workshop Manuals