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SYMPTOM TROUBLESHOOTING [L3 WITH TC] 01-03–85 01-03 Fuel Cut Control System Inspection Note • This inspection has to be performed after the Fuel Injector Operation Inspection. If simulation function of M-MDS is used: 1. Warm up the engine and idle it. (1) Depress the accelerator pedal and increase the RPM PID to 4,000 rpm. msec., and 2— 5 msec. when the RPM PID drops below 1,200 rpm. • If not as specified, inspect the following. — ECT sensor and related wiring harness (See01-40-25 ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION[L3 WITH TC].) If simulation function of M-MDS is not used: 1. Warm up the engine and idle it. (1) Depress the accelerator pedal and increase the engine speed to 4,000 rpm. constantB+, and the wave appears when the engine speed drops below 1,200 rpm. • If not as specified, inspect the following. — ECT sensor and related wiring harness (See01-40-25 ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION[L3 WITH TC].) Fuel Pump Operation Inspection 1. Connect the M-MDS to the DLC-2. heard. • If no operation sound is heard, proceed to the next step. 5. Measure the voltage at the wiring harness side fuel pump connector terminal B with the FIP PID turned on. • If the voltage is as specified, inspect the following: — Fuel pump continuity — Fuel pump ground — Wiring harness between the fuel pump relay and PCM terminal 1H • If not as specified, inspect the following: — Fuel pump relay — Fuel pump speed control relay — Wiring harness connector (Main relay—fuel pump relay—fuel pump resister—fuel pump.) Specification 8.0— 11.5 V (Ignition switch at ON) If simulation function of M-MDS is not used: Caution • Connecting the wrong check connector terminal may possibly cause a malfunction. Carefully connect the specified terminal only. 1. Short the check connector terminal F/P to body ground using a jumper wire. • If no operation sound is heard, proceed to the next step. 1871-1U-06B(01-03).fm 85 ページ 2006年3月15日 水曜日 午前10時36分 |