Diagnostic Procedure

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	CLASSIFY SHORT TO POWER SUPPLY OR OPEN CIRCUIT MALFUNCTION Start the engine and run it at idle Verify the BSM indicator light status Does the BSM indicator light always illuminate?	Yes	Go to the next step.
1		No	Go to Step 7.
2	INSPECT POWER OUTER MIRROR (LH) CONNECTOR CONDITION Switch the ignition to off Disconnect the power outer mirror (LH) connector Inspect for poor connection (damaged/ pulled-out pins, corrosion) Is there any malfunction?	Yes	Repair or replace the connector or terminal, then go to Step 13
2		No	Go to the next step.
3	INSPECT BSM CONTROL MODULE (LH) CONNECTOR CONDITION Disconnect the BSM control module (LH) connector Inspect for poor connection (damaged/ pulled-out pins, corrosion) Is there any malfunction?	Yes	Repair or replace the connector or terminal, then go to Step 13.
3		No	Go to the next step.
4	INSPECT BSM INDICATOR LIGHT (LH) CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY Start the engine and run it at idle. Measure the voltage between power outer mirror (LH) terminal G (wiring harness-side) and body ground. Is there any voltage?	Yes	Repair or replace the wiring harness for a possible short to power supply, then go to Step 13.
4		No	Go to the next step.
5	INSPECT POWER OUTER MIRROR (LH) Inspect the power outer mirror (LH). See POWER OUTER MIRROR INSPECTION . Is there any malfunction?	Yes	Replace the power outer mirror (LH), then go to Step 13. See POWER OUTER MIRROR REMOVAL/INSTALLATION .
5		No	Go to the next step.
6	INSPECT BSM INDICATOR LIGHT (LH) Inspect the BSM indicator light (LH). Is there any malfunction?	Yes	Replace the outer mirror glass (LH), then go to Step 13. See OUTER MIRROR GLASS REMOVAL . See OUTER MIRROR GLASS INSTALLATION .
6		No	Go to Step 13
7	INSPECT POWER OUTER MIRROR (LH) CONNECTOR CONDITION Switch the ignition to off Disconnect the power outer mirror (LH) connector Inspect for poor connection (damaged/ pulled-out pins, corrosion) Is there any malfunction?	Yes	Repair or replace the connector or terminal, then go to Step 13.
7		No	Go to the next step.
8	INSPECT BSM INDICATOR LIGHT (LH) GROUND CIRCUIT FOR OPEN CIRCUIT Inspect for continuity between power outer mirror (LH) terminal B (wiring harness-side) and body ground. Is there continuity?	Yes	Go to the next step
8		No	Repair or replace the wiring harness for a possible open circuit, then go to Step 13.
9	INSPECT POWER OUTER MIRROR (LH) Inspect the power outer mirror (LH). See POWER OUTER MIRROR INSPECTION ) Is there any malfunction?	Yes	Replace the power outer mirror (LH), then go to Step 13 See POWER OUTER MIRROR REMOVAL/INSTALLATION .
9		No	Go to the next step.
10	INSPECT BSM INDICATOR LIGHT (LH) Inspect the BSM indicator light (LH) Is there any malfunction?	Yes	Replace the outer mirror glass (LH), then go to Step 13. See OUTER MIRROR GLASS REMOVAL . See OUTER MIRROR GLASS INSTALLATION .
10		No	Go to the next step.
11	INSPECT BSM CONTROL MODULE (LH) CONNECTOR CONDITION Disconnect the BSM control module (LH) connector. Inspect for poor connection (damaged/ pulled-out pins, corrosion) Is there any malfunction?	Yes	Repair or replace the connector or terminal, then go to Step 13.
11		No	Go to the next step.
12	INSPECT BSM INDICATOR LIGHT (LH) CONTROL CIRCUIT FOR OPEN CIRCUIT Inspect for continuity between BSM control module (LH) terminal D (wiring harness-side) and power outer mirror (LH) terminal G (wiring harness-side) Is there continuity?	Yes	Go to the next step.
12		No	Repair or replace the wiring harness for a possible open circuit, then go to the next step.
13	VERIFY TROUBLESHOOTING COMPLETED Switch the ignition to off. Make sure to reconnect the disconnected connectors Connect the M-MDS to the DLC-2. Switch the ignition to ON Clear the DTC from the BSM control module memory using the M-MDS. See CLEARING DTC [BLIND SPOT MONITORING (BSM)] . Perform the self-test with M-MDS. See DTC INSPECTION [BLIND SPOT MONITORING (BSM)] . Is the same DTC present?	Yes	Replace the BSM control module (LH), then go to the next step See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION )
13		No	Go to the next step
14	VERIFY THAT NO OTHER DTCs ARE RECORDED Are any DTCs present?	Yes	Go to the applicable DTC inspection. See DTC TABLE [BLIND SPOT MONITORING (BSM)] .
14		No	DTC troubleshooting completed