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DTC P1148, P1168 CLOSED LOOP CONTROL EC-501 C D E F G H I J K L M A EC Overall Function Check EBS00MJG Use this procedure to check the overall function of the closed loop control. During this check, a DTC might not WITH GST 1. Start engine and warm it up to normal operating temperature. 2. Turn ignition switch “OFF” and wait at least 10 seconds, 3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load. 4. Let engine idle for 1 minute. 5. Set voltmeter probes between ECM terminal 114 [HO2S1 (B1) 6. Check the following with engine speed held at 2,000 rpm con- – The voltage should go above 0.70V at least once. – The voltage should go below 0.21V at least once. 7. EC-501, "Diagnostic Procedure" Diagnostic Procedure EBS00MJH Perform trouble diagnosis for “DTC P0133, P0153”. Refer to . PBIB0063E |