Diagnostic Procedure

WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.

Step	Inspection		Action
1	INSPECT AUTO LEVELING SENSOR CONNECTOR CONDITION Switch the ignition to off. Disconnect the negative battery cable. (Refer to NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .) Disconnect the auto leveling sensor connector. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. Is the connector normal?	Yes	Go to the next step.
1		No	Repair or replace the connector, then go to Step 7.
2	INSPECT AFS CONTROL MODULE CONNECTOR CONDITION Disconnect the AFS control module connector. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. Is the connector normal?	Yes	Go to the next step.
2		No	Repair or replace the connector, then go to Step 7.
3	INSPECT AUTO LEVELING SENSOR CIRCUIT FOR SHORT TO GROUND Verify that the auto leveling sensor and AFS control module connectors are disconnected. Inspect for continuity between the following terminals (vehicle wiring harness side) and body ground. Auto leveling sensor terminal C Auto leveling sensor terminal B Auto leveling sensor terminal A Is there continuity?	Yes	Repair or replace the wiring harness which is shorted to ground, then go to Step 7.
3		No	Go to the next step.
4	INSPECT AUTO LEVELING SENSOR CIRCUIT FOR SHORT TO POWER SUPPLY Verify that the auto leveling sensor and AFS control module connectors are disconnected. Connect the negative battery cable. (Refer to NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .) Switch the ignition ON (engine off or on). Measure the voltage at the following terminals (vehicle wiring harness side). Auto leveling sensor terminal C Auto leveling sensor terminal B Auto leveling sensor terminal A Is the voltage 0 V ?	Yes	Go to the next step.
4		No	Repair or replace the wiring harness which is shorted to power supply, then go to Step 7.
5	INSPECT AUTO LEVELING SENSOR CIRCUIT FOR OPEN CIRCUIT Verify that the auto leveling sensor and AFS control module connectors are disconnected. Switch the ignition to off. Disconnect the negative battery cable. (Refer to NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .) Inspect the wiring harness between the following terminals (vehicle wiring harness side) for continuity. AFS control module terminal F and auto leveling sensor terminal C AFS control module terminal T and auto leveling sensor terminal B AFS control module terminal J and auto leveling sensor terminal A Is there continuity?	Yes	Go to the next step.
5		No	Repair or replace the wiring harness which has an open circuit, then go to Step 7.
6	INSPECT AUTO LEVELING SENSOR Inspect the auto leveling sensor. (Refer to AUTO LEVELING SENSOR INSPECTION .) Is the auto leveling sensor normal?	Yes	Go to the next step.
6		No	Replace the auto leveling sensor, then go to the next step. (Refer to AUTO LEVELING SENSOR REMOVAL/INSTALLATION .)
7	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Reconnect all the disconnected connectors. Reconnect the disconnected negative battery cable. (Refer to NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .) Clear the AFS control module DTCs using the M-MDS. (Refer to CLEARING DTC [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE] .) Switch the ignition ON (engine off or on) and wait for 10 s or more. Perform the DTC inspection for the AFS control module using the M-MDS. (Refer to DTC INSPECTION [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE] .) Is DTC B1044:01 displayed?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the AFS control module, then go to the next step. (Refer to ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE REMOVAL/INSTALLATION .)
7		No	Go to the next step.
8	VERIFY IF OTHER DTCs DISPLAYED Are any other DTCs displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (Refer to DTC TABLE [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE] .)
8		No	DTC troubleshooting completed.