Diagnostic Procedure

DTC P0506 DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY 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 SERVICE 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, 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. Is other DTC present?	Yes	Repair applicable DTCs. (See DTC TABLE ).
3		No	Go to the next step.
4	INSPECT A/C MAGNET CLUTCH OPERATION Turn blower motor switch off. Is 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 purge solenoid valve inspection. (See PURGE SOLENOID VALVE INSPECTION [L3, AJ] ). Is purge solenoid valve normal?	Yes	Go to the next step.
6		No	Replace purge solenoid valve, then go to Step 10.
7	INSPECT AIR CLEANER ELEMENT Remove air cleaner element with engine running. Does engine speed increase?	Yes	Replace air cleaner element, then go to Step 10.
7		No	Go to the next step.
8	INSPECT ENGINE COMPRESSION Inspect engine compression. (See COMPRESSION INSPECTION ). Is engine compression normal?	Yes	Go to the next step.
8		No	Overhaul engine, then go to Step 10.
9	INSPECT GENERATOR Perform generator inspection. (See GENERATOR INSPECTION [L3, AJ] ). Is generator normal?	Yes	Go to the next step.
9		No	Repair or replace related part, then go to the next step.
10	VERIFY TROUBLESHOOTING OF DTC P0506 COMPLETED Make sure to reconnect all disconnected connectors. Start engine. Clear the DTC from the PCM memory using the WDS or equivalent. Depress brake pedal for 14 s or more. Is PENDING CODE for this 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.