GDI -Troubleshooting 13A-151 Code No.56 Abnormal fuel pressureProbable cause Range of Check DIgnition switch: ON Set Conditions DThe sensor output voltage is 4.8V or more, or 0.2 V or less for four seconds.DMalfunction of of fuel pressure sensor DOpen or short circuit in the fuel pressure sensor circuit or loose connector contact DMalfunction of engine-A/T-ECU Range of Check DThe following conditions are detected temporarily after the engine has been started. (1) Engine speed: 1,000 r/min or more (2) Fuel pressure: 2 MPa or more DEngine running Set Conditions DThe fuel pressure is 6.9 MPa or more, or 2 MPa or less for four seconds.DMalfunction of high-pressure fuel pump DClogging of high-pressure fuel lines This diagnosis code will also be output when air is trapped into the high-pressure fuel lines (such as poor fuel level). In that case, the air can be evacuated by operating the engine for atleast 15 seconds at 2,000 r/min. After the repair, use the MUT-IIto erase the diagnosis code.DAir trapped due to poor fuel level (2) NGCheck the following connector: D-121NG Repair OK Check the harness wire between the intermediate connector and the engine-A/T-ECU, and repair if necessary. MUT- IIData list 74 Fuel pressure sensor (Refer to 13A-198, DATA LIST REFERENCE TABLE.)OKTransient malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) NG Check the following connector: B-35NG Repair OK Measure at intermediate connector B-110. DDisconnect the connector, and measure at the engine-A/T-ECU harness side. (1) Voltage between terminal 4 and earth (Ignition switch: ON) OK: 4.8 - 5.2 V (2) Resistance between terminal 6 and earth OK: 2Wor less(1) NGMeasure at engine-A/T-ECU connector D-121. DMeasure the voltage at the engine-A/T-ECU terminal. DIgnition switch: ON DVoltage between terminal 87 and earth OK: 4.8 - 5.2 VOKCheck the following connector: D-121 NG Repair NG Check the following connector: D-121NG Repair OK Check the harness wire between the intermediate connector and the engine-A/T-ECU.NG Repair OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. OK To the nextpage OK Check the harness wire between the intermediate connector and the engine-A/T-ECU, and repair if necessary.NG Repair www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-152 NG (2) NGCheck the following connector: B - 111NG Repair OK Measure at intermediate connector B-110. DUse test harness (MB991658) to connect the connector, and measure at the pick-up harness. DEngine: Idling DSelector lever position: P (1) Voltage between terminal 4 and earth OK: 4.8 - 5.2 V (2) Voltage between terminal 5 and earth OK: 0.3 - 4.7 V (3) Voltage between terminal 6 and earth OK: 0.5 V or less(1), (3) NGCheck the following connector: B - 111 OK Check the following connector: D-121NG Repair OK Check the harness wire between the fuel pressure sensor and the intermediate connector.NG Repair From the previouspage OK Check the harness wire between the intermediate connector and the engine-A/T-ECU, and repair if necessary. OK Check the harness wire between the fuel pressure sensor and the intermediate connector.NG Repair OK Replace the fuel pressure sensor. Check the trouble symptoms. Check the following connector: D-121NG Repair NG Check the harness wire between the intermediate connector and the engine-A/T-ECU, and repair if necessary. OK Measure at engine-A/T-ECU connector D-121. DMeasure the voltage at the engine-A/T-ECU terminal. DEngine: Idling DSelector lever position: P DVoltage between terminal 93 and earth OK: 0.3 - 4.7 VNGCheck the following connector: D-121NG Repair OK Check the harness wire between the intermediate connector and the engine-A/T-ECU, and repair if necessary. OKCheck the following connector: D-121NG Repair OK Check the trouble symptoms. OK Replace the engine-A/T-ECU.OKRepair www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-153 Code No.64 Alternator FR terminal systemProbable cause Range of Check DEngine speed: 50 r/min or more Set Conditions DInput voltage from the alternator FR terminal is system voltage for 20 seconds.DOpen circuit in alternator FR terminal circuit DMalfunction of engine-A/T-ECU OK Check the harness wire between the intermediate connector and the engine-A/T-ECU, and repair if necessary.NG Repair NG Check the following connector: D-120NG Repair Check the following connector: B-41NG Repair OK Measure at intermediate connector B-41. DUse test harness (MB991658) to connect the connector, and measure at the pick-up harness. DEngine:idling (After warming up) DSelector lever position: P DRadiator fan: Not operating DThe voltage between terminal 2 and earth OK: The voltage drops when the Headlamp are turned on.NG Check the following connector: B-59NG Repair OK Check the trouble symptoms. NG Replace the engine-A/T-ECU. OK Check the harness wire between the intermediate connector and the engine-A/T-ECU.NG Repair OK Measure at intermediate connector B-41. DUse test harness (MB991658) to connect the connector, and measure at the pick-up harness. DIgnition switch: ON DThe voltage between terminal 2 and earth OK: 9 - 10 VNGMeasure at engine-A/T-ECU connector D-120. DMeasure the voltage at the engine-A/T-ECU terminal. DIgnition switch: ON DThe voltage between terminal 54 and earth OK: 9 - 10 VNGCheck the following connector: D-120 OK NG Repair OK Check the following connector: D-120NG Replace OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. OK Check the harness wire between the intermediate connector and the engine-A/T-ECU.NG Repair NG Replace the alternator.OK Check the trouble symptoms.OKIntermittent malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) Check the harness wire between the alternator and the intermediate connector. www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-154 Code No.77 Accelerator pedal position sensor (2nd channel) systemProbable cause Range of Check DAcceleratorpedal positionsensor (1st channel) is normal. DCommunication between the engine-A/T-ECU and the throttle valve controller is normal. Set Conditions DOutput voltage of the accelerator pedal positionsensor (2nd channel) is 0.2 V or less for one second or DOutput voltage of the accelerator pedal positionsensor (1st channel) is 2.5 V or less, and output voltage of the acceleratorpedal positionsensor (2nd channel) is 4.5 V or more for one second. or DDifference between the accelerator pedal positionsensor (1st and 2nd channels) output voltages exceeds 1.0 V (i.e. when the throttle valveopening anglechanges slightly).DMalfunction of accelerator pedal positionsensor (2nd channel) DOpen or short circuit in acceleratorpedal position sensor (2nd channel) circuit or loose connector contact DMalfunction of the throttle valve controller DMalfunction of engine-A/T-ECU OKIntermittent malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) NG Check the acceleratorpedal position sensor (Refer to P.13A-229.)NG Replace OK Measure at accelerator pedal position sensor connector D-135 DDisconnect the connector and measure at the harness side. (1) The resistance between terminal 7 and earth OK: 2Wor less (2) The voltage between terminal 8 and earth (Ignition switch: ON) OK: 4.8 - 5.2 V(1) NGCheck the following connector: D-11NG Repair OK Check the following connector: D-45NG Repair Check the harness wire between accelerator pedal positionsensor (2nd channel) and the throttle valve controller.NG Repair OK Check the trouble symptoms.NGReplace the throttle valve controller. (2) NGMeasure at throttle valve controller connector D-11. DMeasure voltage at the throttle valve controller connector terminals. DIgnition switch: ON DThe voltage between terminal 6 and earth OK: 4.8 - 5.2 VOK OK Check the harness wire between accelerator pedal positionsensor (2nd channel) and the throttle valve controller, and repair if necessary.NG Repair NG Check the following connector: D-11NG Repair OK Check the harness wire between accelerator pedal positionsensor (2nd channel) and the throttle valve controller.NG Repair OK To the nextpage OK Check the trouble symptoms.NGReplace the throttle valve controller. OK MUT- IIData list 77 Acceleratorpedal positionsensor (2nd channel) (Refer to P. 13A-198, DATA LIST REFERENCE TABLE.) Check the following connector: D-11 www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-156 Code No.78 Accelerator pedal position sensor (1st channel) systemProbable cause Range of Check DAcceleratorpedal positionsensor (2nd channel) is normal. DCommunication between the engine-A/T-ECU and the throttle valve controller is normal. Set Conditions DThe output voltage of accelerator pedal positionsensor (1st channel) is 0.2 V or less for one second. or DThe output voltage of accelerator pedal positionsensor (2nd channel) is 2.5 V or less, and that of acceleratorpedal positionsensor (1st channel) is 4.5 V or more for one second or DThe difference between accelerator pedal positionsensor (1st channel) and accelerator pedal positionsensor (2nd channel) output voltages is 1.0 V or more (i.e. the throttle opening anglechanges slightly). or DThe output voltage of accelerator pedal positionsensor (1st channel) is 1.1 V or more for one second when the acceleratorpedal positionswitch is turned on.DMalfunction of accelerator pedal positionsensor (1st channel) DOpen or short circuit in the acceleratorpedal position sensor (1st channel) circuit or loose connector contact DAcceleratorpedal positionswitch seized ON DMalfunction of throttle valve controller DMalfunction of engine-A/T-ECU OK Check the harness wire between accelerator pedal positionsensor (1st channel) and the engine- A/T-ECU, and repair if necessary. NG Check Acceleratorpedal position sensor (1st channel) (Refer to P.13A-229).NG Replace OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. (2) NGMeasure at engine-A/T-ECU connector D-120. DMeasure the voltage at the engine-A/T-ECU terminal. DIgnition switch: ON DVoltage between terminal 46 and earth OK: 4.8 - 5.2 VOK OK MUT- IIData list 78 Acceleratorpedal positionsensor (1st channel) (Refer to 13A-198, DATA LIST REFERENCE TABLE.)OKTransient malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. MUT- IIData list 26 Acceleratorpedal positionswitch (Refer to 13A-198, DATA LIST REFERENCE TABLE.)NGCheck the acceleratorpedal position switch system. (Refer to P.13A-192, Inspection Procedure 28). OK Measure at accelerator pedal position sensor connector D-135. DDisconnect the connector and measure at the harness side. (1) Resistance between terminal 1 and earth OK: 2Wor less (2) Voltage between terminal 2 and earth (Ignition switch: ON) OK: 4.8 - 5.2 V(1) NGCheck the following connector: D-120NGRepair NG Repair NG Check the following connector: D-117NG Repair OK Check the following connector: D-45NG Repair OK Check the harness wire between accelerator pedal positionsensor (1st channel) and the engine- A/T-ECU.NG Repair OK Check the harness wire between accelerator pedal positionsensor (1st channel) and the engine- A/T-ECU.NG RepairOK To the nextpage Check the following connector: D-120 www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-157 OK Measure at accelerator pedal position sensor connector D-135. DConnect connector terminals No.1, No.2 and No.3 only by using test harness (MB991658), and measure at the pick-up harness. DIgnition switch: ON (1) Voltage between terminal 1 and earth OK: 0.5 V or less (2) Voltage between terminal 2 and earth OK: 4.8 - 5.2 V (3) Voltage between terminal 3 and earth OK: Acceleratorpedalfully re- leased: 0.985 - 1.085 V Acceleratorpedalfully de- pressed: 4.0 V or higher(1), (2) NGCheck the following connector: D-32NG Check the following connector: D-31NG Repair OK Check the harness wire between accelerator pedal positionsensor (1st channel) and the engine- A/T-ECU, and repair if necessary. From the previouspage (3) NG Adjust the acceleratorpedal position sensor. (Refer to P.13A-221.) OK Check the harness wire between accelerator pedal positionsensor (1st channel) and the engine- A/T-ECU, and repair if necessary. OK Measure at engine-A/T-ECU connector D-121. DMeasure the voltage at the engine-A/T-ECU terminal. DIgnition switch: ON DVoltage between terminal 95 and earth OK: Acceleratorpedalfully re- leased: 0.985 - 1.085 V Acceleratorpedalfully de- pressed: 4.0 V or higherNGCheck the following connector: D-121NGRepair OK Check the harness wire between accelerator pedal positionsensor (1st channel) and the engine- A/T-ECU, and repair if necessary. OKCheck the following connector: D-121NG OK Check the trouble symptoms. NG Replace the engine-A/T-ECU.Repair Repair www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-158 Code No.79 Throttle position sensor (1st channel) systemProbable cause The throttle valve controller judges a malfunction, and then transmit the result to the engine-A/T-ECU. Range of Check DIgnition switch: ON Set Conditions DThe sensor output voltage is 0.2 V or less. or DThe sensor output voltage is 4.85 V or more and the throttle position sensor (2nd channel) output voltage is 2.5V or more. or DThe throttle position sensor (1st channel) and throttle position sensor (2nd channel) combination output voltage is outside 4 - 6V. or DThe opening angle of throttle positionsensor (1st channel) is different from its target by 1V or more. or DThe throttle position sensor (1st channel) output changes within 25 mV when the throttle valve control servo moves one step.DMalfunction of throttle position sensor DOpen or short circuit in the throttle position sensor (1st channel) circuit or loose connector contact DMalfunction of throttle valve controller DMalfunction of engine-A/T-ECU OK Check the harness wire between the the throttle position sensor and the throttle valve controller, and repair if necessary. MUT- IIData list 79 Throttle position sensor (1st channel) (Refer to P.13A-198, DATA LIST REFERENCE TABLE.)OKTransient malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) NG Check the throttle position sensor. (Refer to P.13A-228.)NG Replace OK Measure at throttle position sensor connector B-102. DDisconnect the connector and measure at the harness side. (1) Voltage between terminal 1 and earth (Ignition switch: ON) OK: 4.8 - 5.2 V (2) Resistance between terminal 3 and earth OK: 2Wor less(1) NGMeasure at throttle valve controller connector D-11. DMeasure voltage at the throttle valve controller connector terminals. DIgnition switch: ON DVoltage between terminal 6 and earth OK: 4.8 - 5.2 VOKCheck the following connector: D-11 NG Repair NG Check the following connector: D-11NG Repair OK Check the trouble symptoms.NGReplace the throttle valve controller. NG Check the following connector: B-102NG Repair (2) NGCheck the following connector: D-11NGRepair OK Check the harness wire between the the throttle position sensor and the throttle valve controller.NG Repair OK Check the harness wire between the the throttle position sensor and the throttle valve controller.NG Repair OK Check the trouble symptoms.NGReplace the throttle valve controller. OK To the nextpage www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-160 Code No.89 Abnormal fuel systemProbable cause Range of Check DEngine: Being learning the air - fuel ratio Set Conditions DTen seconds or more havebeenpassed while the fuel injection amount compensation value is too low. or DTen seconds or more havebeenpassed while the fuel injection amount compensation value is too high.DMalfunction of fuel supply system DMalfunction of oxygen sensor DMalfunction of intake air temperature sensor DMalfunction of barometric pressure sensor DMalfunction of air flow sensor DMalfunction of engine-A/T-ECU Repair OK MUT- IIData list 74 Fuel pressure sensor (Refer to 13A-198, DATA LIST REFERENCE TABLE.)NGCheck fuel leakage around the fuel pump (high-pressure) line.NG NO Check the air intake from the intake hose and right bank intake manifold.NG Repair OK Check the oxygen sensor (Refer to P.13A-230.)NG Replace MUT- IISelf-Diag Code Is any diagnosis code other than No.89 output?YESRefer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS CODES. OK Check the exhaust gas leaks from the right bank exhaust manifold.NG Cleaning OK Check the throttle body (around the throttle valve), and clean if necessary. (Refer to P.13A-220).NG Cleaning OK MUT- IIData list 11 Oxygen sensor 12 Air flow sensor 13 Intake air temperature sensor 21 Engine coolant temperature sensor 25 Barometric pressure sensor (Refer to 13A-198, DATA LIST REFERENCE TABLE.) Reference If all the service data is normal, go to “OK.” If any abnormal service is found, go to “NG.”NGRefer to the Inspection procedure for the sensor, which is indicated by the abnormal service data. (Refer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS CODES.)OK Replace the fuel pump (high-pressure). Check the purge control solenoid valve (Refer to GROUP 17 - Emission Control).NG Replace OK To the nextpage www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
