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ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (ZM)] 01–02A–98 Diagnostic procedure End Of Sie POSSIBLE CAUSE • IAC valve malfunction • Accelerator cable misadjustment • Actuator cable misadjustment • Throttle valve malfunction • Vacuum hose misconnection • PCM malfunction STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME DATA HAS BEEN • Has FREEZE FRAME DATA been recorded? Yes Go to next step. No Record FREEZE FRAME DATA on repair order, then go to 2 VERIFY RELATED REPAIR INFORMATION • Check for related Service Bulletins availability. • Is any related repair information available? Yes Perform repair or diagnosis according to available repair information. • If vehicle is not repaired, go to next step. No Go to next step. 3 VERIFY RELATED PENDING OR STORED • Turn ignition key to OFF, then start engine. • Verify pending code or stored DTCs using • Are other DTCs present? Yes Repair applicable DTCs. (See 01–02A–15 DTC TABLE [ZM].) No Go to next step. 4 INSPECT IAC VALVE MALFUNCTION • Perform IAC inspection. • Is IAC valve okay? Yes Go to next step. No Replace IAC valve, then go to Step 9. 5 INSPECT ACCELERATOR CABLE FREE PLAY • Turn ignition key to OFF. • Is accelerator cable free play okay? Yes Go to next step. No Adjust accelerator cable free play, then go to Step 9. 6 INSPECT ACTUATOR CABLE FREE PLAY • Is actuator cable adjustment okay? Yes Go to next step. No Adjust actuator cable free play, then go to Step 9. 7 INSPECT VACUUM HOSE CONNECTION • Are vacuum hoses connected accurately? Yes Go to next step. No Reconnect vacuum hose accurately, then go to Step 9. 8 VISUAL INSPECT THROTTLE VALVE • Remove throttle body. • Is throttle valve fully closed? Yes Go to next step. No Clean or replace throttle body, then go to next step. 9 VERIFY TROUBLESHOOTING OF DTC P0507 • Make sure to reconnect all disconnected • Start engine. • Clear DTC from PCM memory using WDS or • Depress brake pedal for 14.1 seconds or • Is PENDING CODE of same DTC present? Yes Replace PCM, then go to next step. No Go to next step. 10 VERIFY AFTER REPAIR PROCEDURE • Perform “After Repair Procedure”. • Is there any DTC present? Yes Go to applicable DTC inspection. (See 01–02A–15 DTC TABLE [ZM].) No Troubleshooting completed. DTC P0507 Idle control system RPM higher than expected 1712-1U-01G(01-02A).fm 98 ページ 2001年6月29日 金曜日 午後2時20分 |