GDI -Troubleshooting 13A-155 OK Measure at throttle valve controller connector D-11. DMeasure voltage at the throttle valve controller connector terminals. DIgnition switch: ON DThe resistance between 20 and earth OK: Acceleratorpedalfully re- leased: 0.985 - 1.085 V Acceleratorpedalfully de- pressed: 4.0 V or higherNGCheck the following connector: D-11NG Repair NG NG Repair OK Check the trouble symptoms. OK Measure at accelerator pedal position sensor (2nd channel) connector D-135. DUse test harness (MB991658) to connect terminals No.6, No.7, No.8 only, and measure at the pick-up harness side. DIgnition switch: ON (1) The voltage between terminal 6 and earth OK: Acceleratorpedalfully re- leased: 0.985 - 1.085 V Acceleratorpedalfully de- pressed: 4.0 V or higher (2) The voltage between terminal 7 and earth OK: 0.5 V or more (3) The voltage between terminal 8 and earth OK: 4.8 - 5.2 V(1) NGAdjust the acceleratorpedal position sensor (2nd channel). (Refer to P.13A-221.) From the previouspage OK Check the harness wire between accelerator pedal positionsensor (2nd channel) and the throttle valve controller. (2), (3) NGCheck the following connector: D-11NGRepair OK Check the harness wire between accelerator pedal positionsensor (2nd channel) and the throttle valve controller. OK Check the harness wire between accelerator pedal positionsensor (2nd channel) and the throttle valve controller. OKCheck the following connector: D-11NGRepair NG Replace the throttle valve controller. 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-159 OK Measure at throttle valve controller connector D-11. DMeasure voltage at the throttle valve controller connector terminals. DIgnition switch: ON DVoltage between terminal 7 and earth OK: Acceleratorpedalfully re- leased: 0.4 - 0.8 V Acceleratorpedalfully de- pressed: 4.2 - 4.8 VNGCheck the following connector: D-11NG Repair OK Check the harness wire between the the throttle position sensor and the throttle valve controller, and repair if necessary. OK Check the following connector: D-11 OK Check the trouble symptoms. NG Replace the throttle valve controller. From the previouspage NG Repair OK Measure at throttle position sensor connector B-102. DUse test harness (MB991536) to connect the connector, and measure at the pick-up harness. DIgnition switch: ON (1) Voltage between terminal 1 and earth OK: 4.8 - 5.2 V (2) Voltage between terminal 2 and earth OK: Acceleratorpedalfully re- leased: 0.4 - 0.8 V Acceleratorpedalfully de- pressed: 4.2 - 4.8 V (3) Voltage between terminal 3 and earth OK: 0.5 V or less(1) NGCheck the following connector: D-11NG Repair (3) NG OK Check the harness wire between the the throttle position sensor and the throttle valve controller, and repair if necessary. (2) NG Adjust the throttle position sensor. (Refer to P.13A-220.) Check the following connector: D-11NG Repair OK Check the harness wire between the the throttle position sensor and the throttle valve controller, and repair if necessary. 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
GDI -Troubleshooting GDI -Troubleshooting 13A-161 OK Check the right bank injectors for clogging or leaks.NG Repair OK Check the right bank fuel lines for fuel leaks.NG Repair OK Check the fuel pressure between the fuel pump(low-pressure) and the fuel pump (high-pressure)(Refer to P.13A-112).NG From the previouspage OK Check the trouble symptoms.OKTransient malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) NG Replace the engine-A/T-ECU. OK Check the EGR valve (Refer to GROUP 17 - Emission Control).NG Replace Check the fuelline between the fuel pump(low-pressure) and the fuel pump (high-pressure)(Refer to P.13A-222). Code No.91 Electronic-controlled throttle valve systemProbable cause Range of Check DIgnition switch: ON DError in communication between the engine-A/T-ECU and the throttle valve controller Set Conditions DOutput voltage of throttle position sensor (2nd channel) fluctuates significantly (approx. 1 V or more) from an expected value, based on that of the accelerator pedal positionsensor (2nd channel). Range of Check DIgnition switch: ON DError in communication between the throttle valve controller and the engine-A/T-ECU Set Conditions DThe output voltage of the throttle position sensor (2nd channel) is significantly different (approx. 1 V) from the the throttle valveopening angle (voltage), which the engine-A/T-ECU request the throttle valve controller.DShort in communicationline DMalfunction of the engine-A/T-ECU DMalfunction of the throttle valve controller OK Check the harness wire between the throttle valve controller and the engine-A/T-ECU.NG Repair NG Replace the engine-A/T-ECU. Check the following connectors: D-11, D-119, D-122NG Repair OK NG Replace the throttle valve controller. Check the trouble symptoms. Check the trouble symptoms. www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-162 Code No.92 Throttle valve position feedback 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 DBattery voltage: 10 V or more Set Conditions DFailure in the position feedback [The engine-A/T-ECU detects that the current in the motor isexcessive and the opening angle difference between the targetvalue of throttle position sensor (1st channel) and the actual value of throttle position sensor (1st channel) is 2.0V or more]DMalfunction of throttle position sensor (1st channel) DOpen or short circuit in the throttle position sensor (1st channel) circuit or loose connector contact DMalfunction of the throttle valve controller NG Replace the throttle valve controller. OK Check the trouble symptoms. NG Check the harness wires between the throttle position sensor and the throttle valve controller, and between the throttle valve control servo and the throttle valve controller.NG Repair NO Adjust the throttle position sensor. (Refer to P.13A-220.) MUT- IISelf-Diag Code Is code No.79 set?YESRefer to Code No.79, Throttle position sensor (1st channel) system. (Refer to P.13A-158.) NO MUT- IISelf-Diag Code Is Code No.93 set?YESRefer to Code No.93, Throttle valve control servo system (Refer to P.13A-163.) OK Check the following connectors: B-102, B-122, D-11NG Repair OK Check the throttle valve control servo. (Refer to 13A-232.)NGReplace the throttle body assembly. www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk