Diagnostic Procedure

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Step	Inspection		Action
1	VERIFY REAR BODY CONTROL MODULE (RBCM) DTCs AGAIN Clear rear body control module (RBCM) DTCs using the M-MDS. (See CLEARING DTC [REAR BODY CONTROL MODULE (RBCM)] .) Perform the DTC inspection for the rear body control module (RBCM) using the M-MDS. (See DTC INSPECTION [REAR BODY CONTROL MODULE (RBCM)] .) Is DTC B108F:16 displayed?	Yes	Go to the next step.
1		No	Go to Step 9.
2	POWER WINDOW MAIN SWITCH CONNECTOR INSPECTION Switch the ignition to off. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .) Disconnect the power window main switch 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 8.
3	INSPECT DOOR LOCK SWITCH (LH) Inspect the door lock switch (LH). (See DOOR LOCK SWITCH INSPECTION .) Is the door lock switch (LH) normal?	Yes	Go to the next step.
3		No	Replace the power window main switch, then go to Step 8. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .)
4	INSPECT DOOR LOCK SWITCH (RH) CONNECTOR Disconnect the door lock switch (RH) 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.
4		No	Repair or replace the connector, then go to Step 8.
5	INSPECT DOOR LOCK SWITCH (RH) Inspect the door lock switch (RH). (See DOOR LOCK SWITCH INSPECTION .) Is the door lock switch (RH) normal?	Yes	Go to the next step.
5		No	Replace the door lock switch (RH), then go to Step 8. (See DOOR LOCK SWITCH REMOVAL/INSTALLATION .)
6	INSPECT REAR BODY CONTROL MODULE (RBCM) CONNECTOR CONDITION Disconnect the rear body control module (RBCM) 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.
6		No	Repair or replace the connector, then go to Step 8.
7	INSPECT DOOR LOCK SWITCH CIRCUIT FOR SHORT TO GROUND Verify the rear body control module (RBCM) connector, power window main switch connector, and door lock switch (RH) connector are disconnected. Inspect for continuity between rear body control module (RBCM) terminal 3F (vehicle wiring harness side) and body ground. Is there continuity?	Yes	Repair or replace the wiring harness which has a short to ground, then go to the next step.
7		No	Go to the next step.
8	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Reconnect all the disconnected connectors. Reconnect the disconnected negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .) Clear rear body control module (RBCM) DTCs using the M-MDS. (See CLEARING DTC [REAR BODY CONTROL MODULE (RBCM)] .) Perform the DTC inspection for the rear body control module (RBCM) using the M-MDS. (See DTC INSPECTION [REAR BODY CONTROL MODULE (RBCM)] .) Is DTC B108F:16 displayed?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the rear body control module (RBCM), then go to the next step. (See REAR BODY CONTROL MODULE (RBCM) REMOVAL/INSTALLATION .)
8		No	Go to the next step.
9	VERIFY IF OTHER DTCs DISPLAYED Are any other DTCs displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [REAR BODY CONTROL MODULE (RBCM)] .)
9		No	DTC troubleshooting completed.