Diagnostic procedure

WARNING: This page is about a different car, the 2025 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

DTC P164D:00 (AWD CONTROL MODULE) DIAGNOSTIC PROCEDURE

Step	Inspection	Results	Action
1	COUPLING COMPONENT CALIBRATION DATA WRITING Write the coupling component calibration data. (See COUPLING COMPONENT CALIBRATION DATA WRITING .) Clear the DTCs from the memory. (See CLEARING DTC [AWD CONTROL MODULE] .) Using the M-MDS, perform the AWD control module DTC inspection. (See DTC INSPECTION [AWD CONTROL MODULE] .) Is the same Pending DTC present?	-	Go to the next step.
2	VERIFY THAT THE SAME DTC IS NOT PRESENT Clear the DTCs from the memory. (See CLEARING DTC [AWD CONTROL MODULE] .) Using the M-MDS, perform the AWD control module DTC inspection. (See DTC INSPECTION [AWD CONTROL MODULE] .) Is the same Pending DTC present?	Yes	Replace the AWD control module. (See AWD CONTROL MODULE REMOVAL/INSTALLATION .)
2		No	Go to the next step.
3	VERIFY THAT NO OTHER DTCS ARE PRESENT Are any other DTCs output?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [AWD CONTROL MODULE] .)
3		No	DTC troubleshooting completed.