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 B1079:13 displayed?	Yes	Go to the next step.
1		No	Go to Step 8.
2	INSPECT HOOD LATCH SWITCH CONNECTOR 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 hood latch 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 7.
3	INSPECT HOOD LATCH SWITCH GROUND CIRCUIT FOR OPEN CIRCUIT Verify that the hood latch switch connector is disconnected. Inspect for continuity between hood latch switch terminal B (vehicle wiring harness side) and body ground. Is there continuity?	Yes	Go to the next step.
3		No	Repair or replace the wiring harness which has an open circuit, then go to Step 7.
4	INSPECT HOOD LATCH SWITCH Inspect the hood latch switch. (See HOOD LATCH SWITCH INSPECTION .) Is the hood latch switch normal?	Yes	Go to the next step.
4		No	Replace the hood latch switch, then go to Step 7. (See HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION .)
5	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.
5		No	Repair or replace the connector, then go to Step 7.
6	INSPECT HOOD LATCH SWITCH CIRCUIT FOR OPEN CIRCUIT Verify that the hood latch switch and rear body control module (RBCM) connectors are disconnected. Inspect the wiring harness for an open circuit between rear body control module (RBCM) terminal 3L (vehicle wiring harness side) and hood latch switch terminal A (vehicle wiring harness side). Is there continuity?	Yes	Go to the next step.
6		No	Repair or replace the wiring harness which has an open circuit, then go to the next step.
7	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 B1079:13 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 .)
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. (See DTC TABLE [REAR BODY CONTROL MODULE (RBCM)] .)
8		No	DTC troubleshooting completed.