Diagnostic Procedure

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	RECORD THE CAR CONFIGURATION DATA Switch the ignition OFF. Switch the ignition ON (engine off or on), and maintain this condition for approx. 1 min. Switch the ignition OFF, and maintain this condition for approx. 3 s. Switch the ignition ON (engine off or on).		Go to the next step.
2	VERIFY THAT THE SAME DTC IS NOT PRESENT Clear the DTC from the memory. (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS .) Is the same DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, go to the next step.
2		No	Go to Step 5.
3	INSPECT FOR INSTRUMENT CLUSTER MALFUNCTION Switch the ignition OFF. Using the M-MDS, perform the DTC inspection for the instrument cluster. (See DTC INSPECTION [INSTRUMENT CLUSTER] .) Are any DTCs detected?	Yes	Go to applicable DTC inspection. (See DTC TABLE [INSTRUMENT CLUSTER] .) After repairing the instrument cluster, perform the "INSTRUMENT CLUSTER CONFIGURATION", then go to the next step. (See INSTRUMENT CLUSTER CONFIGURATION (USING READ/WRITE FUNCTION) .) (See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA) .)
3		No	Go to the next step.
4	VERIFY THAT THE SAME DTC IS NOT PRESENT Clear the DTC from the memory. (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS .) Is the same DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the EPS CM, then go to the next step. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .)
4		No	Go to the next step.
5	VERIFY THAT NO OTHER DTCs ARE PRESENT Are any other DTCs output? (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS .)	Yes	Go to the applicable DTC inspection. (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS .)
5		No	DTC troubleshooting completed.