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F–146 ON-BOARD DIAGNOSTIC End Of Sie 3 VERIFY RELATED PENDING OR STORED • Turn ignition key to OFF, then ON (Engine OFF). • Verify pending code or stored DTCs using WDS or equivalent. • Is other DTC present? Yes Repair applicable DTCs. (See .) No Go to next step. 4 INSPECT IAC VALVE MALFUNCTION • Perform IAC valve inspection. F–13 IDLE AIR CONTROL (IAC) VALVE • Is IAC valve okay? Yes Go to next step. No Replace IAC valve, then go to Step 11. 5 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 F–181 ENGINE SYMPTOM TROUBLESHOOTING No Go to next step. 6 INSPECT PURGE SOLENOID VALVE • Perform purge solenoid valve inspection. • Is purge solenoid valve okay? Yes Go to next step. No Replace purge solenoid valve, then go to Step 11. 7 INSPECT AIR CLEANER ELEMENT • Remove air cleaner element with engine running. • Is engine speed increased? Yes Replace air cleaner element, then go to Step 11. No Go to next step. 8 INSPECT THROTTLE BODY PASSAGE • Is throttle body clogged? Yes Clean or replace throttle body passage, then go to Step 11. No Go to next step. 9 INSPECT ENGINE COMPRESSION • Inspect engine compression. • Is engine compression okay? Yes Go to next step. No Overhaul engine, then go to Step 11. 10 INSPECT GENERATOR • Perform generator inspection. .) • Is generator okay? Yes Go to next step. No Repair or replace related part, then go to next step. 11 VERIFY TROUBLESHOOTING OF DTC P0506 • Make sure to reconnect all disconnected connectors. • Start engine. • Clear DTC from PCM memory using WDS or equivalent. • Depress brake pedal for 14 s or more. • Is PENDING CODE the same as DTC present? Yes Replace PCM, then go to next step. (See No Go to next step. 12 VERIFY AFTER REPAIR PROCEDURE • Perform “After Repair Procedure”. • Is there any DTC present? Yes Go to applicable DTC troubleshooting. (See .) No Troubleshooting completed. STEP INSPECTION ACTION |