Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

DTC P2009 [BP, BP WITH TC] DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	CHECK FREEZE FRAME DATA HAS BEEN RECORDED Has FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record FREEZE FRAME DATA on repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Check for related Service Bulletins and/or online repair information availability. Is any related repair information available?	Yes	Perform repair or diagnosis according to the available repair information. If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	VERIFY CURRENT SIGNAL STATUS: IS CONCERN INTERMITTENT OR CONSTANT? Connect the WDS or equivalent to the DLC-2. Clear the DTC from the PCM memory using the WDS or equivalent. Turn the ignition switch to the ON position (Engine off). Is the same PENDING CODE for this DTC present?	Yes	Go to the next step.
3		No	Intermittent concern exists. Perform the "INTERMITTENT CONCERNS TROUBLESHOOTING". (See INTERMITTENT CONCERN TROUBLESHOOTING .)
4	INSPECT VTCS SOLENOID VALVE CONNECTOR FOR POOR CONNECTION Turn the ignition switch off. Check for poor connection (damaged/pulled-out pins, corrosion, etc.). Is there any malfunction?	Yes	Repair or replace the terminal, then go to Step 10.
4		No	Go to the next step.
5	INSPECT VTCS SOLENOID VALVE Inspect VTCS solenoid valve. Is there any malfunction?	Yes	Replace VTCS solenoid valve, then go to Step 10.
5		No	Go to the next step.
6	INSPECT VTCS SOLENOID VALVE POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT Disconnect VTCS solenoid valve connector. Turn the ignition switch to the ON position (Engine off). Measure voltage between VTCS solenoid valve terminal A (harness-side) and body ground. Is voltage B+ ?	Yes	Go to the next step.
6		No	Repair or replace harness for an open circuit, then go to Step 10.
7	INSPECT PCM CONNECTOR FOR POOR CONNECTION Turn the ignition switch off. Disconnect PCM connector. Check for poor connection at PCM terminal 2N (damaged/pulled-out pins, corrosion, etc.). Is there any malfunction?	Yes	Repair terminal, then go to Step 10.
7		No	Go to the next step.
8	INSPECT VTCS SOLENOID VALVE CONTROL CIRCUIT FOR SHORT TO GROUND Turn the ignition switch off. Inspect for continuity between VTCS solenoid valve terminal B (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 10.
8		No	Go to the next step.
9	INSPECT VTCS SOLENOID VALVE CONTROL CIRCUIT FOR OPEN CIRCUIT Inspect continuity the VTCS solenoid valve terminal B and PCM terminal 2N. Is there continuity?	Yes	Go to the next step.
9		No	Repair or replace harness for an open circuit, then go to the next step.
10	VERIFY TROUBLESHOOTING OF DTC P2009 COMPLETED Make sure to connect all disconnected connectors. Clear the DTC from the PCM memory using the WDS or equivalent. Start engine. Is same DTC present?	Yes	Replace PCM, then go to the next step.
10		No	Go to the next step.
11	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE ". (See AFTER REPAIR PROCEDURE .) Is any DTC present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE .)
11		No	Troubleshooting completed.