Diagnostic Procedure

DTC P0505:00 DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Verify related Service Bulletins and/or on-line 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.
1		No	Go to the next step.
2	VERIFY DRIVE-BY-WIRE CONTROL SYSTEM OPERATION Perform the throttle position (TP) sweep inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [MZR 2.5] .) Does the drive-by-wire control system work properly?	Yes	Go to the next step.
2		No	Repair or replace the malfunctioning part according to the inspection results, then go to Step 8.
3	INSPECT A/C MAGNETIC CLUTCH OPERATION Turn the fan switch off. Is the magnetic clutch still on?	Yes	Perform the symptom troubleshooting "NO. 24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY". (See NO. 24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [MZR 2.5] .)
3		No	Go to the next step.
4	INSPECT GENERATOR CONTROL CIRCUIT MALFUNCTION Apply the electrical load. Does the engine speed increase?	Yes	Go to the next step.
4		No	Repair or replace the generator control circuit for a possible short to power supply, then go to Step 8.
5	INSPECT AIR CLEANER ELEMENT Remove the air cleaner element with the engine is running. Does the engine speed increase?	Yes	Clean or replace the air cleaner element, then go to Step 8.
5		No	Go to the next step.
6	INSPECT THROTTLE BODY PASSAGE Visually inspect the throttle body passage. Is the throttle body passage dirty and/or restricted?	Yes	Clean or replace the throttle body passage, then go to Step 8. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.5] .)
6		No	Go to the next step.
7	INSPECT ENGINE COMPRESSION Inspect the engine compression. (See COMPRESSION INSPECTION [MZR 2.5] .) Is there any malfunction?	Yes	Overhaul the engine for repairs, then go to the next step.
7		No	Go to the next step.
8	VERIFY DTC TROUBLESHOOTING COMPLETED Make sure to reconnect all disconnected connectors. Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [MZR 2.5] .) Perform the KOER self test. (See KOEO/KOER SELF TEST [MZR 2.5] .) Is the same DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZR 2.5] .) Go to the next step.
8		No	Go to the next step.
9	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE [MZR 2.5] .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR 2.5] .)
9		No	DTC troubleshooting completed.