Diagnostic procedure

DTC P0506 DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED Has the FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record FREEZE FRAME DATA on the repair order, then go to the next step.
2	VERIFY RELATED SERVICE INFORMATION AVAILABILITY Check for related Service Bulletins and/or online repair information availability. Is any related repair information available?	Yes	Perform the repair or diagnosis according to the available repair information. If the vehicle is not repaired, then go to the next step.
2		No	Go to the next step.
3	VERIFY RELATED PENDING OR STORED DTCS Turn ignition switch to OFF, then ON (Engine off). Verify pending code or stored DTCs using the WDS or equivalent. Are other DTCs present?	Yes	Repair the applicable DTCs. (See DTC TABLE ).
3		No	Go to the next step.
4	INSPECT A/C MAGNET CLUTCH OPERATION Turn the blower motor switch off. Is the magnet clutch still on?	Yes	Refer to "A/C is always on or A/C compressor runs continuously." of ENGINE SYMPTOM TROUBLESHOOTING, then go to Step 10. (See NO. 24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY ).
4		No	Go to the next step.
5	INSPECT ELECTRONIC THROTTLE CONTROL SYSTEM MALFUNCTION Inspect the following parts: APP sensor (See ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION ). TP sensor (See THROTTLE POSITION (TP) SENSOR INSPECTION ). Are they normal?	Yes	Go to the next step.
5		No	Replace the necessary parts, then go to Step 10.
6	INSPECT PURGE SOLENOID VALVE MALFUNCTION Perform the purge solenoid valve inspection. (See PURGE SOLENOID VALVE INSPECTION ). Is the purge solenoid valve normal?	Yes	Go to the next step.
6		No	Replace the purge solenoid valve, then go to Step 10.
7	INSPECT AIR CLEANER ELEMENT Remove the air cleaner element with the engine running. Does the engine speed increase?	Yes	Replace the air cleaner element, then go to Step 10.
7		No	Go to the next step.
8	INSPECT ENGINE COMPRESSION Inspect the engine compression. (See COMPRESSION INSPECTION ). Is the engine compression normal?	Yes	Go to the next step.
8		No	Overhaul the engine, then go to Step 10.
9	INSPECT GENERATOR Perform the generator inspection. (See GENERATOR INSPECTION ). Is the generator normal?	Yes	Go to the next step.
9		No	Repair or replace the related part, then go to the next step.
10	VERIFY TROUBLESHOOTING OF DTC P0506 COMPLETED Make sure to reconnect all disconnected connectors. Start the engine. Clear the DTC from the PCM memory using the WDS or equivalent. Depress the brake pedal for 14 s or more . Is PENDING CODE for this DTC present?	Yes	Replace the 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 ). Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE ).
11		No	Troubleshooting completed.