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	PERFORM DTC INSPECTION Clear the DTC from the keyless control module and PCM memory using the M-MDS See CLEARING DTC [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] . Perform the immobilizer system (advanced keyless entry and push button start system) DTC inspection using the M-MDS See DTC INSPECTION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] . Is the following DTC present? Keyless control module B10E6:11	Yes	Perform the security light, not illuminated, DTC: B10E6:11/-inspection See SECURITY LIGHT: NOT ILLUMINATED, DTC B10E6:11/- [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .
1		No	Go to the next step
2	INSPECT COIL ANTENNA CONNECTOR CONDITION Switch the ignition to off Disconnect the negative battery cable Disconnect the coil antenna connector Inspect the connector and terminals (corrosion, damage, pin disconnection) Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 7
2		No	Go to the next step
3	INSPECT COIL ANTENNA GROUND CIRCUIT FOR OPEN CIRCUIT Inspect for continuity between coil antenna terminal F (wiring harness-side) and body ground Is there continuity?	Yes	Go to the next step
3		No	Repair or replace the wiring harness for a possible open circuit, then go to Step 7
4	INSPECT KEYLESS CONTROL MODULE CONNECTOR CONDITION Disconnect the keyless control module connector Inspect the connector and terminals (corrosion, damage, pin disconnection) Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 7
4		No	Go to the next step.
5	INSPECT COIL ANTENNA POWER SUPPLY CIRCUIT FOR SHORT TO GROUND Inspect for continuity between coil antenna terminal H (wiring harness-side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to ground, then go to Step 7
5		No	Go to the next step.
6	INSPECT COIL ANTENNA CIRCUIT FOR OPEN CIRCUIT Inspect for continuity between the following terminals Coil antenna terminal H (wiring harness-side) and keyless control module terminal 4Q (wiring harness-side) Coil antenna terminal A (wiring harness-side) and keyless control module terminal 4Q (wiring harness-side) Coil antenna terminal B (wiring harness-side) and keyless control module terminal 4R (wiring harness-side) Coil antenna terminal D (wiring harness-side) and keyless control module terminal 2D (wiring harness-side) Coil antenna terminal C (wiring harness-side) and keyless control module terminal 2B (wiring harness-side) Is there continuity?	Yes	Go to the next step
6		No	Repair or replace the wiring harness for a possible open circuit, then go to the next step
7	PERFORM DTC INSPECTION Reconnect the disconnected connectors. Reconnect the negative battery cable Clear the DTC from the keyless control module and PCM memory using the M-MDS. See CLEARING DTC [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] . Perform the immobilizer system (advanced keyless entry and push button start system) DTC inspection using the M-MDS. See DTC INSPECTION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] . Is the same DTC present?	Yes	Replace the coil antenna, then go to the next step. See COIL ANTENNA REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .
7		No	Go to Step 9.
8	VERIFY TROUBLESHOOTING COMPLETED Clear the DTC from the keyless control module and PCM memory using the M-MDS. See CLEARING DTC [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] . Perform the immobilizer system (advanced keyless entry and push button start system) DTC inspection using the M-MDS. See DTC INSPECTION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] . Is the same DTC present?	Yes	Replace the keyless control module and program the immobilizer system-related parts, then go to the next step See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] . See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .
8		No	Go to the next step.
9	VERIFY THAT NO OTHER DTCs ARE PRESENT Are any DTCs present?	Yes	Go to the applicable DTC inspection. See DTC TABLE [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .
9		No	DTC troubleshooting completed.