FOREWORD [SKYACTIV-G 2.0]
- If there is any vehicle malfunction complaint lodged by a customer, perform malfunction diagnosis according to the troubleshooting procedure.
Troubleshooting Procedure Chart. Scheme 105
Scheme 105: Troubleshooting Procedure Chart
*1 : CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW
Repair Order Form (1 Of 2). Scheme 106
Scheme 106: Repair Order Form (1 Of 2)
Repair Order Form (2 Of 2). Scheme 107
Scheme 107: Repair Order Form (2 Of 2)
Scheme 108
Scheme 108: Action for Non-repeatable Malfunction
Scheme 109
- If the malfunction does not recur, verify the malfunction cause by performing the following actions: Based on the repair order form, attempt to drive the vehicle or perform tests to replicate the malfunction, record the data (such as PCM circuit voltage) at that time, and detect the malfunction cause. Shake the wiring harness or connector of the/electrical component which is suspected to be the cause of the malfunction, and inspect for malfunction or occurrence of any DTCs. (Scheme 108): Inspecting For Malfunction Or Occurrence Of Any DTCs Inspect the female terminals on the connector of the electric component which is suspected to be the cause of the malfunction for poor connection. (Scheme 109): Inspecting Female Terminals
CONTROL SYSTEM DEVICE AND CONTROL RELATIONSHIP CHART [SKYACTIV-G 2.0]
Control System Device And Control Relationship Chart. Scheme 110
Scheme 110: Control System Device And Control Relationship Chart
*: TCM (ATX), DSC HU/CM, instrument cluster, start stop unit
NO.1 BLOWN FUSES [SKYACTIV-G 2.0]
1 BLOWN FUSES [TROUBLESHOOTING HINTS] Inspect condition of fuse
Scheme 111
Scheme 111: NO.1 BLOWN FUSES [SKYACTIV-G 2.0]
| Damaged fuse | Related wiring harness |
|---|
| MAIN | FAN GE fuse ADD FAN GE fuse FUEL PUMP fuse IG2 fuse ENG.+B fuse ENG.MAIN fuse INJECTOR fuse EVVT fuse |
| FAN GE | Cooling fan relay No.1 |
| ADD FAN GE | Cooling fan relay No.3 |
| 1 ENGINE.IG1 | Fuel pump relay PCM |
| FUEL PUMP | Fuel pump relay |
| STARTER | Generator Starter |
| AUDIO2 | Ignition relay (ACC_STAB) |
| METER2 | Ignition relay (IG1_STAB) |
| C/U IG1 | Ignition relay (IG1_STAB) |
| IG2 | ACC relay Starter relay |
| ENG.+B | PCM |
| ENG.MAIN | Main relay |
| INJECTOR | Fuel injector relay |
| EVVT | Electric variable valve timing relay |
| ENGINE1 | Electric variable valve timing relay A/F sensor HO2S MAF sensor/IAT sensor No. 1 Intake CMP sensor |
| ENGINE2 | Fuel injector relay Purge solenoid valve OCV PCM Engine oil solenoid valve Exhaust CMP sensor Ignition coil/ion sensor No. 1 Ignition coil/ion sensor No.2 Ignition coil/ion sensor No.3 Ignition coil/ion sensor No.4 |
| ENGINE3 | Cooling fan relay No.1 Cooling fan relay No.2 Cooling fan relay No.3 |
NO.2 CHECK ENGINE LIGHT ILLUMINATES [SKYACTIV-G 2.0]
DESCRIPTION & POSSIBLE CAUSE 2 CHECK ENGINE LIGHT ILLUMINATES DESCRIPTION Check engine light illuminates incorrectly. POSSIBLE CAUSE Check engine light illuminates for emission-related concern (DTC is stored in PCM) Short to ground in wiring harness between the following terminals: Instrument cluster terminal B-PCM terminal 2AK Instrument cluster terminal D-PCM terminal 2AL Open circuit in wiring harness between the following terminals: Instrument cluster terminal B-PCM terminal 2AK Instrument cluster terminal D-PCM terminal 2AL Instrument cluster malfunction NOTE: If check engine light blinks at a steady rate, a misfire condition could possibly exist
Scheme 112
Scheme 112: NO.2 CHECK ENGINE LIGHT ILLUMINATES [SKYACTIV-G 2.0]
NO.3 WILL NOT CRANK [SKYACTIV-G 2.0]
DESCRIPTION & POSSIBLE CAUSE 3 WILL NOT CRANK DESCRIPTION Starter does not work. POSSIBLE CAUSE Poor connection of push button start connector Instrument cluster or related wiring harness malfunction Immobilizer system malfunction PCM continuous memory DTC is stored Open circuit in wiring harness between the following terminals: Main relay terminal E-PCM terminal 2K Main relay terminal C-PCM terminal 2S, 1CK DLC-2-PCM terminal 2AK, 2AL Main relay malfunction (stuck open) Open or poor ground circuit Poor connection of vehicle body ground Battery malfunction Fuse malfunction Starter relay malfunction Starter relay related wiring harness malfunction Between starter relay terminal E and PCM terminal 2AZ Between starter relay terminal E and start stop unit terminal 1D Between start stop unit terminal 2V and starter relay terminal A Following circuit malfunction: Between battery positive terminal and starter terminal 1A Between battery positive terminal and starter relay terminal D Between starter relay terminal C and starter terminal 2A Starter interlock switch and related wiring harness malfunction (MTX) Starting system malfunction Following circuit and/or connector malfunction: Between push button start terminal A and start stop unit terminal 1AC Between push button start terminal B and start stop unit terminal 1AE Between PCM terminal 2AK and start stop unit terminal 2M Between PCM terminal 2AL and start stop unit terminal 2O Seized/hydro locked engine, flywheel (MTX) or drive plate (ATX)
Scheme 113
Scheme 113: NO.3 WILL NOT CRANK [SKYACTIV-G 2.0]
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| VPWR | V | Displays the battery voltage |
NO.4 HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK [SKYACTIV-G 2.0]
| 4 | HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK |
|---|
| DESCRIPTION | Starter cranks engine at normal speed but engine requires excessive cranking time before starting. Battery is operating normally. |
| POSSIBLE CAUSE | NOTE: If the ignition is not switched off (to LOCK or ACC) after the engine stalls, and then an engine restart is attempted, the PCM corrects the difference between CKP sensor and CMP sensor signals caused by engine stalling, which may result in more time needed to restart the engine. Engine overheating PCM DTC is stored Erratic signal to PCM ECT sensor No.1 or related circuit malfunction MAF sensor or related circuit malfunction MAP sensor or related circuit malfunction A/F sensor or related circuit malfunction HO2S or related circuit malfunction Improper air/fuel mixture ratio control Improper operation of drive-by-wire control system Incorrect fuel injection timing Fuel injector malfunction Purge solenoid valve malfunction Contamination in MAF sensor Under the condition in which the engine starts and stops repeatedly while the vehicle is not driven, the fuel injected prior to complete ignition during engine start may drop into the oil pan from the cylinder and mix with the engine oil. The situation in which excess quantities of fuel continue to be injected due to an engine coolant temperature signal error is the same. Intermittent open circuit in PCM ground circuit Poor fuel quality Fuel leakage Air leakage from intake-air system Intake-air system restriction Vacuum leakage Improper engine oil viscosity Erratic signal from CMP sensor Loose installation Damaged trigger wheel (intake camshaft and/or exhaust camshaft) Open or short circuit in related wiring harness Erratic signal from CKP sensor Loose installation Damaged trigger wheel (crankshaft pulley) Open or short circuit in related wiring harness Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve malfunction (built-into high pressure fuel pump) Relief valve (built-into high pressure fuel pump) malfunction Fuel line restriction Fuel filter clogged Fuel pump unit malfunction Starting system malfunction Low engine compression Improper intake valve timing Improper exhaust valve timing Spark plug malfunction Erratic signal to ignition coils Exhaust system or TWC restriction PCV valve malfunction Injector driver (built-into PCM) malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| NOTE |
|---|
| If the ignition is not switched off (to LOCK or ACC) after the engine stalls, and then an engine restart is attempted, the PCM corrects the difference between CKP sensor and CMP sensor signals caused by engine stalling, which may result in more time needed to restart the engine. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
| MAF | G/sec | Displays the MAF |
| V | Switch the ignition to ON (MAF: 0.59 g/s {0.078 lb/min}): approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): approx. 0.86 V Racing (engine speed is 2,000 rpm ) (MAF: 4.73 g/s {0.626 lb/min}): approx. 1.07 V |
| MAP | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the MAP |
| V | Switch the ignition to ON (MAP: 101 kPa {1.03 kgf/cm 2 , 14.6 psi}): approx. 4.07 V Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm 2 , 4.8 psi}): approx. 1.34 V Racing (engine speed is 2,000 rpm ) (MAP: 26 kPa {0.27 kgf/cm 2 , 3.8 psi}): approx. 1.05 V |
| VSS | KPH, MPH | Displays the vehicle speed |
| RPM | RPM | Displays the engine speed |
| O2S11 | A | Idle (after warm up): approx. -39 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 3.84 mA |
| O2S12 | V | Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 0 V |
| SHRTFT1 | % | Idle (after warm up): approx. 1.56 % Racing (engine speed is 2,000 rpm ): approx. -3.12 % Racing (engine speed is 4,000 rpm ): approx. -8.59 % |
| LONGFT1 | % | Idle (after warm up): approx. -2.34 % Racing (engine speed is 2,000 rpm ): approx. -0.78 % Racing (engine speed is 4,000 rpm ): approx. -0.78 % |
| TPREL | % | Accelerator pedal released: approx. 12 % Accelerator pedal depressed: approx. 82 % |
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17V |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.5 ENGINE STALLS-AFTER START/AT IDLE [SKYACTIV-G 2.0]
| 5 | ENGINE STALLS-AFTER START/AT IDLE |
|---|
| DESCRIPTION | Engine stops unexpectedly at idle, after start, or both. |
| POSSIBLE CAUSE | Engine overheating PCM DTC is stored Erratic signal to PCM APP sensor or related circuit malfunction ECT sensor No.1 or related circuit malfunction MAF sensor or related circuit malfunction MAP sensor or related circuit malfunction A/F sensor or related circuit malfunction HO2S or related circuit malfunction Improper air/fuel mixture ratio control Improper operation of A/C system Improper operation of drive-by-wire control system Purge solenoid valve malfunction Open circuit in MAF sensor ground circuit Intermittent open circuit in PCM ground circuit Poor fuel quality Air leakage from intake-air system Intake-air system restriction Electrical connector disconnected No battery power supply to PCM or poor ground Fuel leakage Vacuum leakage Erratic signal from CMP sensor Loose installation Damaged trigger wheel (intake camshaft and/or exhaust camshaft) Open or short circuit in related wiring harness No signal from CKP sensor Loose installation Damaged trigger wheel (crankshaft pulley) Open or short circuit in related wiring harness Inadequate fuel pressure (high or low pressure side) Open or short circuit in the fuel pump (low-side) body or related wiring harness Fuel pressure sensor or related circuit malfunction Fuel pump (low-side) body mechanical malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve malfunction (built-into high pressure fuel pump) Relief valve (built-into high pressure fuel pump) malfunction Fuel line restriction Fuel filter clogged Fuel injector malfunction Incorrect fuel injection timing Improper operation of electric variable valve timing control system (PCM DTC is stored). Improper operation of hydraulic variable valve timing control system Ignition system malfunction Ignition coil malfunction Low engine compression Improper intake valve timing Improper exhaust valve timing Exhaust system and/or TWC restricted or clogged PCV valve malfunction Injector driver (built-into PCM) malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
| APP1 | % | Accelerator pedal released: approx. 16 % Accelerator pedal depressed: approx. 80 % |
| V | Accelerator pedal released: approx. 0.8 V Accelerator pedal depressed: approx. 4 V |
| APP2 | % | Accelerator pedal released: approx. 8 % Accelerator pedal depressed: approx. 40 % |
| V | Accelerator pedal released: approx. 0.4 V Accelerator pedal depressed: approx. 2 V |
| MAF | G/sec | Displays the MAF |
| V | Switch the ignition to ON (MAF: 0.59 g/s {0.078 lb/min}): approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): approx. 0.86 V Racing (engine speed is 2,000 rpm ) (MAF: 4.73 g/s {0.626 lb/min}): approx. 1.07 V |
| MAP | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the MAP |
| V | Switch the ignition to ON (MAP: 101 kPa {1.03 kgf/cm 2 , 14.6 psi}): approx. 4.07 V Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm 2 , 4.8 psi}): approx. 1.34 V Racing (engine speed is 2,000 rpm ) (MAP: 26 kPa {0.27 kgf/cm 2 , 3.8 psi}): approx. 1.05 V |
| VSS | KPH, MPH | Displays the vehicle speed |
| RPM | RPM | Displays the engine speed |
| O2S11 | A | Idle (after warm up): approx. -39 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 3.84 mA |
| O2S12 | V | Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 0 V |
| SHRTFT1 | % | Idle (after warm up): approx. 1.56 % Racing (engine speed is 2,000 rpm ): approx. -3.12 % Racing (engine speed is 4,000 rpm ): approx. -8.59 % |
| LONGFT1 | % | Idle (after warm up): approx. -2.34 % Racing (engine speed is 2,000 rpm ): approx. -0.78 % Racing (engine speed is 4,000 rpm ): approx. -0.78 % |
| VPWR | V | Displays the battery voltage |
| TPREL | % | Accelerator pedal released: approx. 12 % Accelerator pedal depressed: approx. 82 % |
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 ,435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17 V |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.6 CRANKS NORMALLY BUT WILL NOT START [SKYACTIV-G 2.0]
| 6 | CRANKS NORMALLY BUT WILL NOT START |
|---|
| DESCRIPTION | Starter cranks engine at normal speed but engine will not run. Refer to symptom troubleshooting " NO.5 ENGINE STALLS-AFTER START/AT IDLE " if this symptom appears after engine stalls. Fuel is in tank. Battery is in normal condition. |
| POSSIBLE CAUSE | Because engine is started with accelerator pedal fully depressed, it goes into dechoke mode and fuel is not injected Engine overheating PCM DTC is stored Erratic signal to PCM APP sensor or related circuit malfunction ECT sensor No.1 or related circuit malfunction MAF sensor or related circuit malfunction A/F sensor or related circuit malfunction HO2S or related circuit malfunction Improper air/fuel mixture ratio control Power is not supplied from main relay Power is not supplied from fuel injector relay and/or fuel pump relay Improper operation of drive-by-wire control system Purge solenoid valve malfunction No signal from MAF sensor Poor fuel quality Air leakage from intake-air system Intake-air system restriction Electrical connector disconnected No battery power supply to PCM or poor ground Fuse malfunction Fuel leakage Vacuum leakage No signal from CMP sensor Loose installation Damaged trigger wheel (exhaust camshaft) Open or short circuit in related wiring harness No signal from CKP sensor Loose installation Damaged trigger wheel (crankshaft pulley) Open or short circuit in related wiring harness Inadequate fuel pressure (high or low pressure side) Open or short circuit in the fuel pump (low-side) body or related wiring harness Fuel pressure sensor or related circuit malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve malfunction (built-into high pressure fuel pump) Fuel line restriction Fuel filter clogged Fuel pump (low-side) body mechanical malfunction Incorrect fuel injection timing Fuel injector malfunction Improper operation of electric variable valve timing control system (PCM DTC is stored). Improper operation of hydraulic variable valve timing control system Low engine compression Improper intake valve timing Improper exhaust valve timing Ignition system malfunction Ignition coil malfunction Vapor occurs around fuel pump (fuel problem) Because vapor occurs in high pressure fuel pump, fuel injector cannot adjust fuel injection to correct amount Exhaust system and/or TWC restricted or clogged PCV valve malfunction Injector driver (built-into PCM) malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
| APP1 | % | Accelerator pedal released: approx. 16 % Accelerator pedal depressed: approx. 80 % |
| V | Accelerator pedal released: approx. 0.8 V Accelerator pedal depressed: approx. 4 V |
| APP2 | % | Accelerator pedal released: approx. 8 % Accelerator pedal depressed: approx. 40 % |
| V | Accelerator pedal released: approx. 0.4 V Accelerator pedal depressed: approx. 2 V |
| MAF | G/sec | Displays the MAF |
| V | Switch the ignition to ON (MAF: 0.59 g/s {0.078 lb/min}): approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): approx. 0.86 V Racing (engine speed is 2,000 rpm ) (MAF: 4.73 g/s {0.626 lb/min}): approx. 1.07 V |
| VSS | KPH, MPH | Displays the vehicle speed |
| RPM | RPM | Displays the engine speed |
| O2S11 | A | Idle (after warm up): approx. -39 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 3.84 mA |
| O2S12 | V | Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 0 V |
| SHRTFT1 | % | Idle (after warm up): approx. 1.56 % Racing (engine speed is 2,000 rpm ): approx. -3.12 % Racing (engine speed is 4,000 rpm ): approx. -8.59 % |
| LONGFT1 | % | Idle (after warm up): approx. -2.34 % Racing (engine speed is 2,000 rpm ): approx. -0.78 % Racing (engine speed is 4,000 rpm ): approx. -0.78 % |
| TP REL | % | Accelerator pedal released: approx. 12 % Accelerator pedal depressed: approx. 82 % |
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17 V |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.7 ENGINE OIL PRESSURE WARNING LIGHT ILLUMINATES [SKYACTIV-G 2.0]
DESCRIPTION & POSSIBLE CAUSE 7 ENGINE OIL PRESSURE WARNING LIGHT ILLUMINATES DESCRIPTION Engine oil pressure warning light illuminates incorrectly. POSSIBLE CAUSE Improper engine oil level Engine oil leakage Oil pressure switch connector or terminals malfunction Short to ground in wiring harness between oil pressure switch terminal A and PCM terminal 1P PCM connector or terminals malfunction Oil pressure switch malfunction Oil pump malfunction Instrument cluster malfunction PCM malfunction
Scheme 114
Scheme 114: NO.7 ENGINE OIL PRESSURE WARNING LIGHT ILLUMINATES [SKYACTIV-G 2.0]
NO.8 ENGINE RUNS ROUGH/ROLLING IDLE [SKYACTIV-G 2.0]
| 8 | ENGINE RUNS ROUGH/ROLLING IDLE |
|---|
| DESCRIPTION | Engine speed fluctuates between specified idle speed and lower speed and, engine shakes excessively. Idle speed is too slow and engine shakes excessively. |
| POSSIBLE CAUSE | Engine overheating PCM DTC is stored Erratic signal to PCM APP sensor or related circuit malfunction ECT sensor No.1 or related circuit malfunction MAF sensor or related circuit malfunction MAP sensor or related circuit malfunction A/F sensor or related circuit malfunction HO2S or related circuit malfunction Improper air/fuel mixture ratio control operation Improper load signal input Improper A/C request signal Improper operation of A/C system Improper operation of drive-by-wire control system Incorrect fuel injection timing Unbalanced fuel injection amount for each cylinder Purge solenoid valve malfunction Poor fuel quality Air leakage from intake-air system Intake-air system restriction Electrical connector disconnected Fuel leakage Vacuum leakage Improper engine oil viscosity Erratic or no signal from CMP sensor Loose installation Damaged trigger wheel (intake camshaft and/or exhaust camshaft) Open or short circuit in related wiring harness Erratic signal from CKP sensor Loose installation Damaged trigger wheel (crankshaft pulley) Open or short circuit in related wiring harness Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor or related circuit malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction Relief valve (built-into high pressure fuel pump) malfunction Fuel pump (low-side) body mechanical malfunction Fuel filter clogged Fuel injector malfunction Improper operation of electric variable valve timing control system (PCM DTC is stored). Improper operation of hydraulic variable valve timing control system Low engine compression or excessive unbalance for each cylinder Improper intake valve timing Improper exhaust valve timing Spark plug malfunction Incorrect signal to ignition coil Exhaust system or TWC restricted or clogged PCV valve malfunction Injector driver (built-into PCM) malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
| APP1 | % | Accelerator pedal released: approx. 16 % Accelerator pedal depressed: approx. 80 % |
| V | Accelerator pedal released: approx. 0.8 V Accelerator pedal depressed: approx. 4 V |
| APP2 | % | Accelerator pedal released: approx. 8 % Accelerator pedal depressed: approx. 40 % |
| V | Accelerator pedal released: approx. 0.4 V Accelerator pedal depressed: approx. 2 V |
| MAF | G/sec | Displays the MAF |
| V | Switch the ignition to ON (MAF: 0.59 g/s {0.078 lb/min}): approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): approx. 0.86 V Racing (engine speed is 2,000 rpm ) (MAF: 4.73 g/s {0.626 lb/min}): approx. 1.07 V |
| MAP | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the MAP |
| V | Switch the ignition to ON (MAP: 101 kPa {1.03 kgf/cm 2 , 14.6 psi}): approx. 4.07 V Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm 2 , 4.8 psi}): approx. 1.34 V Racing (engine speed is 2,000 rpm ) (MAP: 26 kPa {0.27 kgf/cm 2 , 3.8 psi}): approx. 1.05 V |
| VSS | KPH, MPH | Displays the vehicle speed |
| RPM | RPM | Displays the engine speed |
| O2S11 | A | Idle (after warm up): approx. -39 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 3.84 mA |
| O2S12 | V | Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 0 V |
| SHRTFT1 | % | Idle (after warm up): approx. 1.56 % Racing (engine speed is 2,000 rpm ): approx. -3.12 % Racing (engine speed is 4,000 rpm ): approx. -8.59 % |
| LONGFT1 | % | Idle (after warm up): approx. -2.34 % Racing (engine speed is 2,000 rpm ): approx. -0.78 % Racing (engine speed is 4,000 rpm ): approx. -0.78 % |
| AC_REQ | OFF/ON | A/C switch OFF: Off A/C switch ON: On |
| TPREL | % | Accelerator pedal released: approx. 12 % Accelerator pedal depressed: approx. 82 % |
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17 V |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.9 FAST IDLE/RUNS ON [SKYACTIV-G 2.0]
| 9 | FAST IDLE/RUNS ON |
|---|
| DESCRIPTION | Engine speed continues at fast idle after warm-up. Engine runs after ignition switch is turned off. |
| POSSIBLE CAUSE | Cooling system malfunction PCM DTC is stored Accelerator pedal stuck depressed Erratic signal to PCM APP sensor or related circuit malfunction CPP switch or related circuit malfunction (MTX) Neutral switch or related circuit malfunction (MTX) Communication error between TCM and PCM (ATX) A/F sensor or related circuit malfunction HO2S or related circuit malfunction Improper air/fuel mixture ratio control operation Improper load signal input Improper A/C request signal Improper operation of drive-by-wire control system Throttle body malfunction Fuel injector malfunction Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction Improper operation of cruise control system Air leakage from intake-air system Injector driver (built-into PCM) malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
| APP1 | % | Accelerator pedal released: approx. 16 % Accelerator pedal depressed: approx. 80 % |
| V | Accelerator pedal released: approx. 0.8 V Accelerator pedal depressed: approx. 4 V |
| APP2 | % | Accelerator pedal released: approx. 8 % Accelerator pedal depressed: approx. 40 % |
| V | Accelerator pedal released: approx. 0.4 V Accelerator pedal depressed: approx. 2 V |
| CPP (MTX) | OFF/ON | Clutch pedal depressed: On Clutch pedal released: Off |
| CPP/PNP (MTX) | OFF/ON | Neutral: On Other than neutral: Off |
| VSS | KPH, MPH | Displays the vehicle speed |
| RPM | RPM | Displays the engine speed |
| O2S11 | A | Idle (after warm up): approx. -39 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 3.84 mA |
| O2S12 | V | Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 0 V |
| SHRTFT1 | % | Idle (after warm up): approx. 1.56 % Racing (engine speed is 2,000 rpm ): approx. -3.12 % Racing (engine speed is 4,000 rpm ): approx. -8.59 % |
| LONGFT1 | % | Idle (after warm up): approx. -2.34 % Racing (engine speed is 2,000 rpm ): approx. -0.78 % Racing (engine speed is 4,000 rpm ): approx. -0.78 % |
| AC_REQ | OFF/ON | A/C switch OFF: Off A/C switch ON: On |
| TP REL | % | Accelerator pedal released: approx. 12 % Accelerator pedal depressed: approx. 82 % |
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17V |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.10 LOW IDLE/STALLS DURING DECELERATION [SKYACTIV-G 2.0]
| 10 | LOW IDLE/STALLS DURING DECELERATION |
|---|
| DESCRIPTION | Engine stops unexpectedly at beginning of deceleration or recovery from deceleration. |
| POSSIBLE CAUSE | PCM DTC is stored Erratic signal to PCM APP sensor or related circuit malfunction Brake switch or related circuit malfunction CPP switch or related circuit malfunction (MTX) Neutral switch or related circuit malfunction (MTX) Communication error between TCM and PCM (ATX) ECT sensor No.1 or related circuit malfunction MAF sensor or related circuit malfunction MAP sensor or related circuit malfunction A/F sensor or related circuit malfunction HO2S or related circuit malfunction TP sensor or related circuit malfunction Generator malfunction (part, system, control malfunction) Amount of generator voltage is large Improper air/fuel mixture ratio control Improper operation of A/C magnetic clutch Improper operation of drive-by-wire control system Incorrect fuel injection timing Fuel injector malfunction Purge solenoid valve malfunction Poor fuel quality Air leakage from intake-air system Intake-air system restriction Fuel leakage Vacuum leakage Engine mount installation loose Erratic signal from intake CMP sensor Loose installation Damaged trigger wheel (intake camshaft and/or exhaust camshaft) Open or short circuit in related wiring harness Erratic signal from CKP sensor Loose installation Damaged trigger wheel (crankshaft pulley) Open or short circuit in related wiring harness Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor or related circuit malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction Relief valve (built-into high pressure fuel pump) malfunction Fuel line restriction Fuel filter clogged Fuel pump unit malfunction Low engine compression Improper intake valve timing Improper exhaust valve timing Injector driver (built-into PCM) malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| APP1 | % | Accelerator pedal released: approx. 16 % Accelerator pedal depressed: approx. 80 % |
| V | Accelerator pedal released: approx. 0.8 V Accelerator pedal depressed: approx. 4 V |
| APP2 | % | Accelerator pedal released: approx. 8 % Accelerator pedal depressed: approx. 40 % |
| V | Accelerator pedal released: approx. 0.4 V Accelerator pedal depressed: approx. 2 V |
| BOO | OFF/ON | Brake pedal released: Off Brake pedal depressed: On |
| CPP (MTX) | OFF/ON | Clutch pedal depressed: On Clutch pedal released: Off |
| CPP/PNP (MTX) | OFF/ON | Neutral: On Other than neutral: Off |
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
| MAF | G/sec | Displays the MAF |
| V | Switch the ignition to ON (MAF: 0.59 g/s {0.078 lb/min}): approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): approx. 0.86 V Racing (engine speed is 2,000 rpm ) (MAF: 4.73 g/s {0.626 lb/min}): approx. 1.07 V |
| MAP | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the MAP |
| V | Switch the ignition to ON (MAP: 101 kPa {1.03 kgf/cm 2 , 14.6 psi}): approx. 4.07 V Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm 2 , 4.8 psi}): approx. 1.34 V Racing (engine speed is 2,000 rpm ) (MAP: 26 kPa {0.27 kgf/cm 2 ,3.8 psi}): approx. 1.05 V |
| TPREL | % | Accelerator pedal released: approx. 12 % Accelerator pedal depressed: approx. 82 % |
| VSS | KPH, MPH | Displays the vehicle speed |
| RPM | RPM | Displays the engine speed |
| O2S11 | A | Idle (after warm up): approx. -39 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 3.84 mA |
| O2S12 | V | Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 0 V |
| SHRTFT1 | % | Idle (after warm up): approx. 1.56 % Racing (engine speed is 2,000 rpm ): approx. -3.12 % Racing (engine speed is 4,000 rpm ): approx. -8.59 % |
| LONGFT1 | % | Idle (after warm up): approx. -2.34 % Racing (engine speed is 2,000 rpm ): approx. -0.78 % Racing (engine speed is 4,000 rpm ): approx. -0.78 % |
| ALTF | % | Switch the ignition to ON: 0 % Idle: approx. 42 % Racing (engine speed is 2,000 rpm ): approx. 29 % |
| ALTT V | V | Idle (no E/L): approx. 14 V (this is an internal calculation value and differs from the terminal voltage). |
| AC_REQ | OFF/ON | A/C switch OFF: Off A/C switch ON: On |
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17 V |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.11 ENGINE STALLS/QUITS, ENGINE RUNS ROUGH, MISSES, BUCK/JERK, HESITATION/STUMBLE, SURGES [SKYACTIV-G 2.0]
| 11 | ENGINE STALLS/QUITS-ACCELERATION/CRUISE ENGINE RUNS ROUGH-ACCELERATION/CRUISE MISSES-ACCELERATION/CRUISE BUCK/JERK-ACCELERATION/CRUISE/DECELERATION HESITATION/STUMBLE-ACCELERATION SURGES-ACCELERATION/CRUISE |
|---|
| DESCRIPTION | Engine stops unexpectedly at beginning of acceleration or during acceleration. Engine stops unexpectedly while cruising. Engine speed fluctuates during acceleration or cruising. Engine misses during acceleration or cruising. Vehicle bucks/jerks during acceleration, cruising, or deceleration. Momentary pause at beginning of acceleration or during acceleration. Momentary minor irregularity in engine output. |
| POSSIBLE CAUSE | Engine overheating Drive-by-wire control system operates with brake override system PCM DTC is stored Erratic signal to PCM APP sensor or related circuit malfunction CPP switch or related circuit malfunction (MTX) Neutral switch or related circuit malfunction (MTX) Communication error between TCM and PCM (ATX) ECT sensor No.1 or related circuit malfunction Fuel pressure sensor or related circuit malfunction IAT sensor No.1 (integrated in MAF sensor/IAT sensor No.1) or related circuit malfunction MAF sensor or related circuit malfunction MAP sensor or related circuit malfunction A/F sensor or related circuit malfunction HO2S or related circuit malfunction Improper air/fuel mixture ratio control operation Intermittent open or short circuit MAF sensor, APP sensor, TP sensor Improper operation of A/C system Improper operation of drive-by-wire control system Throttle body malfunction Incorrect fuel injection timing Fuel injector malfunction Purge solenoid valve malfunction Improper A/F sensor signal A/F sensor malfunction Open or short circuit in related wiring harness Loose installation Exhaust system leakage Main relay intermittent malfunction Poor fuel quality Air leakage from intake-air system Intake-air system restriction Air cleaner restriction Clutch slippage (MTX) Fuel leakage Vacuum leakage Engine mount installation loose Erratic or no signal from CMP sensor Loose installation Damaged trigger wheel (intake camshaft and/or exhaust camshaft) Open or short circuit in related wiring harness Erratic signal from CKP sensor Loose installation Damaged trigger wheel (crankshaft pulley) Open or short circuit in related wiring harness Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction Relief valve (built-into high pressure fuel pump) malfunction Fuel line restricted or clogged Fuel pump mechanical malfunction Improper intake valve timing due to timing chain jumping Improper exhaust valve timing due to timing chain jumping Low engine compression Improper intake valve timing Improper exhaust valve timing Spark plug malfunction Throttle valve restricted or clogged Exhaust system and/or TWC restriction (PCM DTC is stored). PCV valve malfunction Check valve (two-way) malfunction Injector driver (built-into PCM) malfunction ATX internal malfunction (ATX) WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| APP1 | % | Accelerator pedal released: approx. 16 % Accelerator pedal depressed: approx. 80 % |
| V | Accelerator pedal released: approx. 0.8 V Accelerator pedal depressed: approx. 4 V |
| APP2 | % | Accelerator pedal released: approx. 8 % Accelerator pedal depressed: approx. 40 % |
| V | Accelerator pedal released: approx. 0.38 V Accelerator pedal depressed: approx. 2.05 V |
| CPP (MTX) | OFF/ON | Clutch pedal depressed: On Clutch pedal released: Off |
| CPP/PNP (MTX) | OFF/ON | Neutral: On Other than neutral: Off |
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17V |
| IAT | °C, °F | Displays the IAT (No. 1) |
| V | IAT is 20°C {68°F}: approx. 2.64 V IAT is 40°C {104°F}: approx. 1.80 V IAT is 60°C {140°F}: approx. 1.14 V |
| IAF | G/sec | Displays the MAF |
| V | Switch the ignition to ON (MAF: 0.59 g/s {0.078 lb/min}): approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): approx. 0.86 V Racing (engine speed is 2,000 rpm ) (MAF: 4.73 g/s {0.626 lb/min}): approx. 1.07 V |
| MAP | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the MAP |
| V | Switch the ignition to ON (MAP: 101 kPa {1.03 kgf/cm 2 , 14.6 psi}): approx. 4.07 V Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm 2 , 4.8 psi}): approx. 1.34 V Racing (engine speed is 2,000 rpm ) (MAP: 26 kPa {0.27 kgf/cm 2 , 3.8 psi}): approx. 1.05 V |
| VSS | KPH, MPH | Displays the vehicle speed |
| RPM | RPM | Displays the engine speed |
| O2S11 | A | Idle (after warm up): approx. -39 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 3.84 mA |
| O2S12 | V | Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 0 V |
| SHRTFT1 | % | Idle (after warm up): approx. 1.56 % Racing (engine speed is 2,000 rpm ): approx. -3.12 % Racing (engine speed is 4,000 rpm ): approx. -8.59 % |
| LONGFT1 | % | Idle (after warm up): approx. -2.34 % Racing (engine speed is 2,000 rpm ): approx. -0.78 % Racing (engine speed is 4,000 rpm ): approx. -0.78 % |
| TPREL | % | Accelerator pedal released: approx. 12 % Accelerator pedal depressed: approx. 82 % |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.12 LACK/LOSS OF POWER-ACCELERATION/CRUISE [SKYACTIV-G 2.0]
| 12 | LACK/LOSS OF POWER-ACCELERATION/CRUISE |
|---|
| DESCRIPTION | Performance is poor under load, (e.g., power down when climbing hills) |
| POSSIBLE CAUSE | Engine overheating Drive-by-wire control system operates with brake override system PCM DTC is stored Improper operation of A/C system Improper operation of drive-by-wire control system Throttle body malfunction Incorrect fuel injection timing Fuel injector malfunction Purge solenoid valve malfunction Erratic signal to PCM APP sensor or related circuit malfunction CPP switch or related circuit malfunction (MTX) Neutral switch or related circuit malfunction (MTX) Communication error between TCM and PCM (ATX) ECT sensor No.1 or related circuit malfunction Fuel pressure sensor or related circuit malfunction IAT sensor No.1 (integrated in MAF sensor/IAT sensor No.1) or related circuit malfunction MAF sensor or related circuit malfunction MAP sensor or related circuit malfunction A/F sensor or related circuit malfunction HO2S or related circuit malfunction Improper air/fuel mixture ratio control operation Intermittent open or short circuit MAF sensor, APP sensor, TP sensor Fuel leakage Poor fuel quality Air leakage or restriction in intake-air system Air cleaner restricted or dirty Vacuum leakage Clutch slippage (MTX) Brake dragging Tire air pressure malfunction Erratic or no signal from CMP sensor Loose installation Damaged trigger wheel (intake camshaft and/or exhaust camshaft) Open or short circuit in related wiring harness Erratic signal from CKP sensor Loose installation Damaged trigger wheel (crankshaft pulley) Open or short circuit in related wiring harness Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction Relief valve (built-into high pressure fuel pump) malfunction Fuel line restricted or clogged Fuel pump mechanical malfunction Improper operation of electric variable valve timing control system (PCM DTC is stored). Improper operation of hydraulic variable valve timing control system Throttle valve restricted or clogged Low engine compression Improper intake valve timing due to timing chain jumping Improper exhaust valve timing due to timing chain jumping Spark plug malfunction Incorrect signal to ignition coil Exhaust system and/or TWC restriction PCV valve malfunction Injector driver (built-into PCM) malfunction ATX internal malfunction (ATX) WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| APP1 | % | Accelerator pedal released: approx. 16 % Accelerator pedal depressed: approx. 80 % |
| V | Accelerator pedal released: approx. 0.8 V Accelerator pedal depressed: approx. 4 V |
| APP2 | % | Accelerator pedal released: approx. 8 % Accelerator pedal depressed: approx. 40 % |
| V | Accelerator pedal released: approx. 0.4 V Accelerator pedal depressed: approx. 2 V |
| CPP (MTX) | OFF/ON | Clutch pedal depressed: On Clutch pedal released: Off |
| CPP/PNP (MTX) | OFF/ON | Neutral: On Other than neutral: Off |
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17V |
| IAT | °C, °F | Displays the IAT (No. 1) |
| V | IAT is 20°C {68°F}: approx. 2.64 V IAT is 40°C {104°F}: approx. 1.80 V IAT is 60°C {140°F}: approx. 1.14V |
| MAF | G/sec | Displays the MAF |
| V | Switch the ignition to ON (MAF: 0.59 g/s {0.078 lb/min}): approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): approx. 0.86 V Racing (engine speed is 2,000 rpm ) (MAF: 4.73 g/s {0.626 lb/min}): approx. 1.07 V |
| MAP | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the MAP |
| V | Switch the ignition to ON (MAP: 101 kPa {1.03 kgf/cm 2 , 14.6 psi}): approx. 4.07 V Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm 2 , 4.8 psi}): approx. 1.34 V Racing (engine speed is 2,000 rpm ) (MAP: 26 kPa {0.27 kgf/cm 2 , 3.8 psi}): approx. 1.05 V |
| TP REL | % | Accelerator pedal released: approx. 12 % Accelerator pedal depressed: approx. 82 % |
| VSS | KPH, MPH | Displays the vehicle speed |
| RPM | RPM | Displays the engine speed |
| O2S11 | A | Idle (after warm up): approx. -39 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 3.84 mA |
| O2S12 | V | Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 0 V |
| SHRTFT1 | % | Idle (after warm up): approx. 1.56 % Racing (engine speed is 2,000 rpm ): approx. -3.12 % Racing (engine speed is 4,000 rpm ): approx. -8.59 % |
| LONGFT1 | % | Idle (after warm up): approx. -2.34 % Racing (engine speed is 2,000 rpm ): approx. -0.78 % Racing (engine speed is 4,000 rpm ): approx. -0.78 % |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.13 KNOCKING/PINGING-ACCELERATION/CRUISE [SKYACTIV-G 2.0]
| 13 | KNOCKING/PINGING-ACCELERATION/CRUISE |
|---|
| DESCRIPTION | Sound is produced when air/fuel mixture is ignited by something other than spark plug, (e.g., hot spot in combustion chamber) |
| POSSIBLE CAUSE | Poor fuel quality Fuel RON is not specified Excessive cleaning agents added in fuel Combustion temperature is high Engine overheating due to cooling system malfunction Carbon accumulation (production of heat spot) Plug thermal value is low Plug malfunction (production of heat spot) Ignition timing for calculating PCM is incorrect PCM DTC is stored Estimated intake air amount is deviated ECT sensor No.1 or related circuit malfunction IAT sensor No.2 (integrated in MAP sensor) or related circuit malfunction Temperature correction is incorrect Air leakage or restriction in intake-air system MAF sensor or related circuit malfunction MAP sensor or related circuit malfunction KS or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.1 V ECT is 40°C {104°F}: approx. 2.2 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.9 V ECT is 100°C {212°F}: approx. 0.5 V |
| IAT2 | °C, °F | Displays the IAT (No.2) |
| V | IAT2 is 20°C {68°F}: approx. 3.60 V IAT2 is 40°C {104°F}: approx. 2.70 V IAT2 is 60°C {140°F}: approx. 1.90 V |
| MAF | G/sec | Displays the MAF |
| V | MAF is 1 g/s {0.13 lb/min}: approx. 0.8 V MAF is 3 g/s {0.4 lb/min}: approx. 0.9 V MAF is 10 g/s {1.3 lb/min}: approx. 1.4 V |
| MAP | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the MAP |
| V | Switch the ignition to ON (MAP: 101 kPa {1.03 kgf/cm 2 , 14.6 psi}): approx. 4.07 V Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm 2 , 4.8 psi}): approx. 1.34 V Racing (engine speed is 2,000 rpm ) (MAP: 26 kPa {0.27 kgf/cm 2 , 3.8 psi}): approx. 1.05 V |
NO.14 POOR FUEL ECONOMY [SKYACTIV-G 2.0]
DESCRIPTION & POSSIBLE CAUSE 14 POOR FUEL ECONOMY DESCRIPTION Fuel economy is unsatisfactory. POSSIBLE CAUSE Engine cooling system malfunction PCM DTC is stored Erratic signal to PCM APP sensor or related circuit malfunction ECT sensor No.1 or related circuit malfunction IAT sensor No.1 (integrated in MAF sensor/IAT sensor No.1) or related circuit malfunction MAF sensor or related circuit malfunction MAP sensor or related circuit malfunction TP sensor or related circuit malfunction Intermittent open or short circuit MAF sensor, APP sensor, TP sensor Improper operation of cooling fan control system Improper operation of A/C system Incorrect fuel injection timing Fuel injector malfunction Short to power supply in wiring harness between IG1 relay terminal C and PCM terminal 2H Contaminated air cleaner element Air leakage or restriction in intake-air system Poor fuel quality Improper coolant level Clutch slippage (MTX) Improper ATF level (ATX) Brake dragging Tire air pressure malfunction Vacuum leakage Fuel leakage Contamination in MAF sensor Tires, wheels (large size) Change of intake air system components and exhaust system components Engine operation time is longer than traveled distance Vehicle is driven in congested traffic frequently Left idling for long periods Amount of fuel injection increases Overloaded Frequent acceleration/deceleration Frequently driving on ascending roads Travel distance per one drive is short (amount of time for warm-up is long during engine operation) Improper load signal input Improper A/C request signal Driver forgets to switch electronic device off Electronic device is frequently used with engine stopped (no power generation) Vehicle left undriven for long periods Large amount of parasitic draw (especially after-market electronic devices) Erratic or no signal from CMP sensor Loose installation Damaged trigger wheel (intake camshaft and/or exhaust camshaft) Open or short circuit in related wiring harness Erratic signal from CKP sensor Loose installation Damaged trigger wheel (crankshaft pulley) Open or short circuit in related wiring harness Inadequate fuel pressure (high-pressure side) Fuel pressure sensor malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction Relief valve (built-into high pressure fuel pump) malfunction Fuel line restricted or clogged Fuel pump unit malfunction Improper engine compression Improper intake valve timing due to timing chain jumping Improper exhaust valve timing due to timing chain jumping Spark plug malfunction Exhaust system and/or TWC restriction PCV valve malfunction Injector driver (built-into PCM) malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material
Scheme 115
Scheme 115: NO.14 POOR FUEL ECONOMY [SKYACTIV-G 2.0]
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| APP1 | % | Accelerator pedal released: approx. 16 % Accelerator pedal depressed: approx. 80 % |
| V | Accelerator pedal released: approx. 0.8 V Accelerator pedal depressed: approx. 4 V |
| APP2 | % | Accelerator pedal released: approx. 8 % Accelerator pedal depressed: approx. 40 % |
| V | Accelerator pedal released: approx. 0.4 V Accelerator pedal depressed: approx. 2 V |
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
| IAT | °C, °F | Displays the IAT (No. 1) |
| V | IAT is 20°C {68°F}: approx. 2.64 V IAT is 40°C {104°F}: approx. 1.80 V IAT is 60°C {140°F}: approx. 1.14 V |
| MAF | G/sec | Displays the MAF |
| V | Switch the ignition to ON (MAF: 0.59 g/s {0.078 lb/min}): approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): approx. 0.86 V Racing (engine speed is 2,000 rpm ) (MAF: 4.73 g/s {0.626 lb/min}): approx. 1.07 V |
| MAP | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the MAP |
| V | Switch the ignition to ON (MAP: 101 kPa {1.03 kgf/cm 2 , 14.6 psi}): approx. 4.07 V Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm 2 , 4.8 psi}): approx. 1.34 V Racing (engine speed is 2,000 rpm ) (MAP: 26 kPa {0.27 kgf/cm 2 , 3.8 psi}): approx. 1.05 V |
| TP REL | % | Accelerator pedal released: approx. 12 % Accelerator pedal depressed: approx. 82 % |
| AC_REQ | OFF/ON | A/C switch OFF: Off A/C switch ON: On |
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17 V |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.15 EMISSION COMPLIANCE [SKYACTIV-G 2.0]
| 15 | EMISSION COMPLIANCE |
|---|
| DESCRIPTION | Fails emissions test. |
| POSSIBLE CAUSE | Engine overheating Cooling system malfunction PCM DTC is stored Incorrect ignition timing Spark plug malfunction Purge solenoid valve malfunction Inadequate fuel pressure Fuel leakage at the fuel line and/or fuel injector Fuel pressure sensor or related circuit malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction Relief valve (built-into high pressure fuel pump) malfunction Fuel line restriction Fuel pump unit malfunction Air leakage from intake-air system Vacuum lines leakage or blockage Charcoal canister damage Improper engine coolant level Excessive carbon built-up in combustion chamber Improper engine compression Improper intake valve timing Improper exhaust valve timing Exhaust system and/or TWC restriction TWC malfunction (PCM DTC is stored). PCV valve malfunction or incorrect valve installation WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17 V |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.16 HIGH OIL CONSUMPTION/LEAKAGE [SKYACTIV-G 2.0]
| 16 | HIGH OIL CONSUMPTION/LEAKAGE |
|---|
| DESCRIPTION | Oil consumption is excessive. |
| POSSIBLE CAUSE | Improper dipstick Improper engine oil viscosity Oil leakage PCV valve malfunction Engine internal parts malfunction |
DESCRIPTION & POSSIBLE CAUSE
NO.17 COOLING SYSTEM CONCERNS-OVERHEATING [SKYACTIV-G 2.0]
| 17 | COOLING SYSTEM CONCERNS-OVERHEATING |
|---|
| DESCRIPTION | Engine runs at higher than normal temperature/overheats. |
| POSSIBLE CAUSE | Engine heat generation amount is too large Engine speed is high and remains high for continuous long periods PCM DTC is stored Improper indication of low engine coolant temperature indicator light and/or high engine coolant temperature warning light ECT sensor No.1 malfunction Instrument cluster malfunction Improper operation of A/C system Cooling fan inoperative Improper engine coolant level Coolant leakage (engine internal, external) Engine coolant performance deterioration Improper water/anti-freeze mixture Poor radiator condition Radiator hose damage Improper or damaged radiator cap Coolant overflow system malfunction Fans reverse rotation Blown fuse Leakage at coolant hoses and/or radiator Leakage around heater unit in passenger compartment Drive belt damage Improper drive belt tension Thermostat malfunction Excessive A/C system pressure |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
NO.18 COOLING SYSTEM CONCERNS-RUNS COLD [SKYACTIV-G 2.0]
| 18 | COOLING SYSTEM CONCERNS-RUNS COLD |
|---|
| DESCRIPTION | Engine does not reach normal operating temperature. |
| POSSIBLE CAUSE | Improper indication of low engine coolant temperature indicator light and/or high engine coolant temperature warning light ECT sensor No. 1 malfunction Instrument cluster malfunction Cooling fan system malfunction Condenser fan system malfunction Thermostat malfunction |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
NO.19 EXHAUST SMOKE [SKYACTIV-G 2.0]
| 19 | EXHAUST SMOKE |
|---|
| DESCRIPTION | Blue, black, or white smoke from exhaust system. |
| POSSIBLE CAUSE | Blue smoke (Burning oil): PCV valve malfunction Engine internal oil leakage White smoke (Water in combustion): Cooling system malfunction (coolant loss) Engine internal coolant leakage Black smoke (Rich fuel mixture): Erratic signal to PCM APP sensor or related circuit malfunction ECT sensor No.1 or related circuit malfunction IAT sensor No.1 (integrated in MAF sensor/IAT sensor No.1) or related circuit malfunction MAF sensor or related circuit malfunction MAP sensor or related circuit malfunction A/F sensor or related circuit malfunction HO2S or related circuit malfunction TP sensor or related circuit malfunction Improper fuel injection timing and amount Air cleaner restriction Intake-air system is collapsed or restricted Leakage at engine intake manifold and/or exhaust manifold Inadequate/Excessive fuel pressure Fuel pressure sensor malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction Relief valve (built-into high pressure fuel pump) malfunction Fuel line restricted or clogged Fuel pump unit malfunction Ignition system malfunction Improper engine compression Improper intake valve timing Improper exhaust valve timing Injector driver (built-into PCM) malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| APP1 | % | Accelerator pedal released: approx. 16 % Accelerator pedal depressed: approx. 80 % |
| V | Accelerator pedal released: approx. 0.8 V Accelerator pedal depressed: approx. 4 V |
| APP2 | % | Accelerator pedal released: approx. 8 % Accelerator pedal depressed: approx. 40 % |
| V | Accelerator pedal released: approx. 0.4 V Accelerator pedal depressed: approx. 2 V |
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
| IAT | °C, °F | Displays the IAT (No. 1) |
| V | IAT is 20°C {68°F}: approx. 2.64 V IAT is 40°C {104°F}: approx. 1.80 V IAT is 60°C {140°F}: approx. 1.14 V |
| MAF | G/sec | Displays the MAF |
| V | Switch the ignition to ON (MAF: 0.59 g/s {0.078 lb/min}): approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): approx. 0.86 V Racing (engine speed is 2,000 rpm ) (MAF: 4.73 g/s {0.626 lb/min}). approx. 1.07 V |
| MAP | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the MAP |
| V | Switch the ignition to ON (MAP: 101 kPa {1.03 kgf/cm 2 , 14.6 psi}): approx. 4.07 V Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm 2 , 4.8 psi}): approx. 1.34 V Racing (engine speed is 2,000 rpm ) (MAP: 26 kPa {0.27 kgf/cm 2 , 3.8 psi}): approx. 1.05 V |
| TP REL | % | Accelerator pedal released: approx. 12 % Accelerator pedal depressed: approx. 82 % |
| VSS | KPH, MPH | Displays the vehicle speed |
| RPM | RPM | Displays the engine speed |
| O2S11 | A | Idle (after warm up): approx. -39 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 3.84 mA |
| O2S12 | V | Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 0 V |
| SHRTFT1 | % | Idle (after warm up): approx. 1.56 % Racing (engine speed is 2,000 rpm ): approx. -3.12 % Racing (engine speed is 4,000 rpm ): approx. -8.59 % |
| LONGFT1 | % | Idle (after warm up): approx. -2.34 % Racing (engine speed is 2,000 rpm ): approx. -0.78 % Racing (engine speed is 4,000 rpm ): approx. -0.78 % |
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17V |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.20 FUEL ODOR (IN ENGINE COMPARTMENT) [SKYACTIV-G 2.0]
| 20 | FUEL ODOR (IN ENGINE COMPARTMENT) |
|---|
| DESCRIPTION | Gasoline fuel smell or visible leakage. |
| POSSIBLE CAUSE | Missing or loose fuel filler cap Fuel leakage from fuel system Improper connection of evaporative related vacuum hoses Purge solenoid valve malfunction Excessive fuel pressure Charcoal canister malfunction Fuel system vent system blockage Fuel pressure sensor malfunction High pressure fuel pump malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17V |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.23 A/C DOES NOT WORK SUFFICIENTLY [SKYACTIV-G 2.0]
DESCRIPTION & POSSIBLE CAUSE 23 A/C DOES NOT WORK SUFFICIENTLY DESCRIPTION A/C compressor magnetic clutch does not engage when A/C switch is turned on. POSSIBLE CAUSE PCM, instrument cluster or climate control unit DTC is stored Refrigerant pressure sensor malfunction Improper refrigerant charging amount Seized A/C compressor Evaporator temperature sensor malfunction Open or short circuit in wiring harness between the following terminals: Evaporator temperature sensor terminal B-Climate control unit terminal H (vehicles with manual air conditioner) Evaporator temperature sensor terminal A-Climate control unit terminal F (vehicles with manual air conditioner) Evaporator temperature sensor terminal B-Climate control unit terminal 1F (vehicles with full-auto air conditioner) Evaporator temperature sensor terminal A-Climate control unit terminal 1X (vehicles with full-auto air conditioner) Instrument cluster malfunction (Does not receive A/C request signal from climate control unit or transmit it to PCM) Climate control unit malfunction (A/C switch malfunction or climate control unit does not determine A/C request or transmit A/C request signal) Open circuit in wiring harness between magnetic clutch and body ground A/C relay stuck open Open circuit in wiring harness between the following terminals: Front body control module (FBCM) terminal 1C-A/C relay terminal A Battery positive terminal-A/C relay terminal C A/C relay terminal D-Magnetic clutch terminal A A/C relay terminal E-PCM terminal 2AF
Scheme 116
Scheme 116: NO.23 A/C DOES NOT WORK SUFFICIENTLY [SKYACTIV-G 2.0]
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| AC_REQ | OFF/ON | A/C switch OFF: Off A/C switch ON: On |
| ACCS | OFF/ON | A/C relay is OFF: Off A/C relay is ON: On |
NO.24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [SKYACTIV-G 2.0]
DESCRIPTION & POSSIBLE CAUSE 24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY DESCRIPTION A/C compressor magnetic clutch does not disengage. POSSIBLE CAUSE PCM, instrument cluster or climate control unit DTC is stored Short to power supply in wiring harness between A/C relay terminal D and magnetic clutch terminal A Magnetic clutch engagement is stuck Climate control unit malfunction (Climate control unit always transmits A/C request signal) A/C relay is stuck closed Short to ground in wiring harness between A/C relay terminal E and PCM terminal 2AF
Scheme 117
Scheme 117: NO.24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [SKYACTIV-G 2.0]
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| ACCS | OFF/ON | A/C relay is OFF: Off A/C relay is ON: On |
NO.25 A/C IS NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS [SKYACTIV-G 2.0]
| 25 | A/C IS NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS |
|---|
| DESCRIPTION | A/C compressor magnetic clutch does not disengage under WOT. |
| POSSIBLE CAUSE | APP sensor malfunction Loosely installed APP sensor PCM DTC is stored |
DESCRIPTION & POSSIBLE CAUSE
NO.26 EXHAUST SULPHUR SMELL [SKYACTIV-G 2.0]
| 26 | EXHAUST SULPHUR SMELL |
|---|
| DESCRIPTION | Rotten egg smell (sulphur) from exhaust. |
| POSSIBLE CAUSE | Electrical connectors are disconnected or connected poorly Vacuum lines are disconnected or connected improperly. Poor fuel quality PCM DTC is stored Inadequate fuel pressure Fuel pressure sensor malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction Relief valve (built-into high pressure fuel pump) malfunction Fuel line restricted or clogged Fuel pump unit malfunction Charcoal canister malfunction Fuel tank vent system malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| FUEL_PRES | KPa {MPa}, mBar {Bar}, psi, in H20 | Displays the fuel pressure |
| V | Fuel pressure is 3.0 MPa {31 kgf/cm 2 , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm 2 , 696 psi}: approx. 1.17 V |
| LOAD | % | Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 % |
NO.28 FUEL FILLING SHUT OFF CONCERNS [SKYACTIV-G 2.0]
| 28 | FUEL FILLING SHUT OFF CONCERNS |
|---|
| DESCRIPTION | Fuel does not shut off properly. |
| POSSIBLE CAUSE | PCM DTC is stored. Non-return valve malfunction Pressure control valve (U.S.A. And CANADA) Check valve (Except U.S.A. And CANADA) Fuel nozzle is not inserted correctly. Fuel nozzle malfunction Fuel shut-off valve malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before servicing the fuel system: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may cause damage to the fuel pipe and the quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before servicing the fuel system: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may cause damage to the fuel pipe and the quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
NO.29 SPARK PLUG CONDITION [SKYACTIV-G 2.0]
| 29 | SPARK PLUG CONDITION |
|---|
| DESCRIPTION | Incorrect spark plug condition. |
| POSSIBLE CAUSE | NOTE: Inspecting the spark plug conditions can determine whether a problem is related to a specific cylinder or possibly all cylinders. Wet/carbon stuck on specific plug: Spark-Weak, not visible Air/fuel mixture-Excessive fuel injection volume Compression-No compression, low compression Malfunction spark plug Grayish white with specific plug: Air/fuel mixture-Insufficient fuel injection volume Malfunction spark plug Wet/carbon is stuck on all plugs: Spark-Spark weak Air/fuel mixture-Too rich, excessive fuel line pressure Erratic signal to PCM ECT sensor No.1 or related circuit malfunction MAF sensor or related circuit malfunction A/F sensor or related circuit malfunction HO2S or related circuit malfunction Compression-Low compression Restriction in intake/exhaust system Grayish white with all plugs: Erratic signal to PCM ECT sensor No.1 or related circuit malfunction MAF sensor or related circuit malfunction A/F sensor or related circuit malfunction HO2S or related circuit malfunction Air/fuel mixture-Too lean, insufficient fuel line pressure WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before servicing the fuel system: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may cause damage to the fuel pipe and the quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
| NOTE |
|---|
| Inspecting the spark plug conditions can determine whether a problem is related to a specific cylinder or possibly all cylinders. |
| WARNING |
|---|
| The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before servicing the fuel system: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.0] ). (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.0] ). |
| CAUTION |
|---|
| Disconnecting/connecting the quick release connector without cleaning it may cause damage to the fuel pipe and the quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material. |
DESCRIPTION & POSSIBLE CAUSE
| CAUTION | Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting. |
| Monitor item (Definition) | Unit/Condition | Condition/Specification (Reference) |
|---|
| ECT | °C, °F | Displays the ECT |
| V | ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V |
| MAF | G/sec | Displays the MAF |
| V | Switch the ignition to ON (MAF: 0.59 g/s {0.078 lb/min}): approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): approx. 0.86 V Racing (engine speed is 2,000 rpm ) (MAF: 4.73 g/s {0.626 lb/min}): approx. 1.07 V |
| VSS | KPH, MPH | Displays the vehicle speed |
| RPM | RPM | Displays the engine speed |
| O2S11 | A | Idle (after warm up): approx. -39 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 3.84 mA |
| O2S12 | V | Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 0 V |
Water Sprinkling Method
If a malfunction occurs only during high humidity or rainy/snowy weather, perform the following steps
| CAUTION | Indirectly change the temperature and humidity by spraying water onto the front of the radiator. If a vehicle is subject to water leakage, the leakage may damage the control module. When testing a vehicle with a water leakage problem, special caution must be used. |
Scheme 118
- Connect the M-MDS to the DLC-2 if you are inspecting sensors or switches.
- Switch the ignition ON (engine off or on). NOTE: If the engine starts and runs, perform the following steps at idle.
- Access the PIDs for the sensor or the switch if you are inspecting sensors or switches.
- If you are inspecting the switch, turn it on manually.
- Spray water onto the vehicle or run it through a car wash. If the PID value is unstable or a malfunction occurs, repair or replace parts if necessary. (Scheme 114): Spraying Water Onto Vehicle
![Scheme 111: NO.1 BLOWN FUSES [SKYACTIV-G 2.0]](https://i.diagnostdata.com/repair/08/083e353a802f69cad272906fb8c8e99b7f883d96ff93f07adc2b8bdbac77c43e.webp)
![Scheme 112: NO.2 CHECK ENGINE LIGHT ILLUMINATES [SKYACTIV-G 2.0]](https://i.diagnostdata.com/repair/58/582cb4ed7fd85b99ac24cd5d2af05bbfc6d2c7c437bd43c31c95fe9613608678.webp)
![Scheme 113: NO.3 WILL NOT CRANK [SKYACTIV-G 2.0]](https://i.diagnostdata.com/repair/e9/e9aa8bdf6f48d2cd8756ecfdc3b0f0bb0ac06806670c888be277bdd5d4bb3da4.webp)
![Scheme 114: NO.7 ENGINE OIL PRESSURE WARNING LIGHT ILLUMINATES [SKYACTIV-G 2.0]](https://i.diagnostdata.com/repair/a0/a0041dfa08745c6c8e86dfcfdc713b6bd3c59b617b8ccf8a8e3d40f8e64401eb.webp)
![Scheme 115: NO.14 POOR FUEL ECONOMY [SKYACTIV-G 2.0]](https://i.diagnostdata.com/repair/ff/ff8f55d48372c51dabc2103a15abc7d2fcbfb7ea811d02957b6e8b7fd7aaa5ce.webp)
![Scheme 116: NO.23 A/C DOES NOT WORK SUFFICIENTLY [SKYACTIV-G 2.0]](https://i.diagnostdata.com/repair/b1/b1a8b2c3caa48a5dfe8475dddabcee3970586715d80b43c15b0ba8c14be2abee.webp)
![Scheme 117: NO.24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [SKYACTIV-G 2.0]](https://i.diagnostdata.com/repair/2d/2d0340bb5155ac31600842d1a3e4102a65d0a5956edf3c7d8018015915790d5a.webp)
