ENGINE CONTROL SYSTEM OPERATION INSPECTION [SKYACTIV-G (E)]
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1. Start the engine and let it idle.
2. Connect the M-MDS to the DLC-2.
3. Select the ENG_RPM PID.
Note
• Excludes temporary idle speed drop just after the loads are turned on.
4. Verify that the engine speed is within specification under each load condition.
• If the load condition is not as specified, inspect the following:
― A/C switch and related wiring harness system (A/C request signal is always on or off)
― Electrical load
Idle-up speed [SKYACTIV-G 2.0] (MTX: Neutral position, ATX: P, N position)
No load: 500—600 rpm (MTX), 550—650 rpm (ATX)
A/C on: 650—800 rpm
Electrical loads on: 600—750 rpm
Idle-up speed [SKYACTIV-G 2.5] (P, N position)
No load: 550—650 rpm
A/C on: 650—800 rpm
Electrical loads on: 600—750 rpm
1. Connect the M-MDS to the DLC-2.
2. Perform the KOEO or KOER self test. (See DTC INSPECTION
3. Verify that none of the following DTCs are displayed:
• P0122:00, P0123:00, P0222:00, P0223:00, P0638:00, P2101:00, P2107:00, P2109:00, P2110:00, P2112:00, P2119:00, P2122:00, P2123:00, P2127:00, P2128:00, P2135:00 and P2138:00
4. Access the following PCM PIDs using the M-MDS. (See PID/DATA MONITOR INSPECTION
• THRO_ANG_ACT
• THRO_ANG_COMD
5. With the accelerator pedal not depressed and with it depressed to the floor, verify that the data monitor item THRO_ANG_ACT value changes in conjunction with the THRO_ANG_COMD value.
• If this change cannot be verified, perform the Resistance Inspection for the throttle body.
Note
• If the brake override system operates normally after performing the following inspection, the PCM detects DTC P2299:00.
1. Start the engine and let it idle.
2. Verify that the engine speed becomes less than 1,200 rpm under the following conditions.
• Neutral (MTX)
• N position (ATX)
• Engine speed of 3,000 rpm or more with accelerator pedal depressed
• Brake pedal depressed
― If the engine speed becomes approx. 1,200 rpm , clear the PCM DTC using the M-MDS. (System operation is normal.)
― If the engine speed does not become approx. 1,200 rpm , inspect for the following parts, then repair or replace the malfunctioning part:
• Neutral sensor No.1 (MTX)
Neutral sensor No.2 (MTX)
• Communication between PCM and TCM (ATX)
Note
• This inspection has to be performed after the Fuel Injector Operation Inspection.
1. Warm up the engine and idle it.
2. Connect the M-MDS to the DLC-2.
3. Select the ENG_RPM and the FUEL_PULSE_WD PIDs. (See PID/DATA MONITOR INSPECTION
4. Monitor both PIDs while performing the following steps:
(1) Depress the accelerator pedal and increase the ENG_RPM PID to 4,000 rpm .
(2) Quickly release the accelerator pedal (brake pedal is not depressed) and verify that the FUEL_PULSE_WD PID is 0 msec , and 2—5 msec when the ENG_RPM PID drops below 1,200 rpm .
• If not as specified, inspect the following:
― ECT sensor No.1 and related wiring harness
ECT sensor No.2 and related wiring harness
1. Warm up the engine and idle it.
2. Measure the fuel injector control signal wave profile using the oscilloscope while performing the following steps:
(1) Depress the accelerator pedal and increase the engine speed to 4,000 rpm .
(2) Quickly release the accelerator pedal (brake pedal is not depressed) and verify that the wave profile constant B+ , and the wave appears when the engine speed drops below 1,200 rpm .
(See PCM INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))]
• If not as specified, inspect the following:
― ECT sensor No.1 and related wiring harness
ECT sensor No.2 and related wiring harness
1. Start the engine.
2. Turn the A/C switch on.
3. Verify that the A/C compressor magnetic clutch actuates.
• If it does not actuate, perform the symptom troubleshooting “A/C DOES NOT WORK SUFFICIENTLY“.
4. Fully open the throttle valve and verify that the A/C compressor magnetic clutch does not actuate for 2—5 s .
• If it actuates, inspect the following:
― Open or short to ground in wiring harness and connectors (Battery—IG1 relay No.2—A/C relay—PCM terminal 2AF)
― A/C related parts
― APP1, APP2 PIDs
Related PIDs