GDI -Troubleshooting 13A-144 Code No.24 Vehicle speed sensor systemProbable cause Range of Check DEngine: Two seconds after theengine wasstarted DIdle switch: OFF DEngine speed: 2,500 r/min or more DDuring high engine load Set Conditions DThe sensor output voltage does not change for 4 seconds (no pulse signal input).DMalfunction of the vehicle speed sensor DOpen or short circuit in the vehicle speed sensor circuit or loose connector contact DMalfunction of engine-A/T-ECU NOCheck the vehicle speed sensor (Refer to GROUP 54 - Combination Meter.) YES Use an analyzer to measure the output waveform of the vehicle speed sensor at engine-A/T-ECU connector C-09. DDriving the vehicle DSelector lever position: P DThe voltage between terminal 80 and earth OK: A normal waveform should be displayed as described in OSCILLOSCOPE INSPECTION PROCEDURE, and noise should not be displayed in the waveform. (Refer to GROUP 23 - Troubleshooting.)NGCheck the following connectors: C-09, E-13 NG Repair OK Check the harness wire between intermediate connector E-13 and the engine-A/T-ECU, and repair if necessary. OK Check the following connector: C-09NG Repair OK Check the trouble symptoms. NG Replace the engine-A/T-ECU. Does the speedometer operate normally? www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-148 OK Use an analyzer to measure the signal waveform at engine-A/T-ECU connectors D-119 and D-120. DEngine: Idling DSelector lever position: P DVoltage between terminal 1 and earth OK: A normal waveform should be displayed as described on P.13A-214 (INSPEC- TION PROCEDURE US- ING AN ANALYZER).NGCheck the following connector: B-61 OK Check the following connectors: B-117 , B-114 injector>, B-118 , B-115 , B-103 injector>, B-104 NG RepairNG OK OK Check the harness wire between the injector and the intermediate connector.NG Replace the engine-A/T-ECU. Repair Repair From the previouspage OK Check the harness wire between injector and the intermediate connector.NG Repair OK Replace the injector. Check the trouble symptoms.NGReplace the injector driver. Code No.44, 52, 53 Ignition coil (incorporating power transistor) systemProbable cause Range of Check DEngine speed is approx. 50 - 4,000 r/min. DEngine is not cranking. Set Conditions DThe ignition failure sensor does not send a signal about a certain cylinder for four seconds. However, except that the ignition failure sensor does not send a signal about all of cylinders.DMalfunction of the ignition coil DMalfunction of the ignition failure sensor DMalfunction of sparkplug DOpen or short circuit in the primary ignition circuit or loose connector contact DMalfunction of engine-A/T-ECU www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-150 Code No.54 Immobilizer systemProbable cause Range of Check DIgnition switch: ON Set Conditions DImproper communication between the engine-A/T-ECU and the immobilizer-ECUDOpen or short circuit, or loose connector contact DMalfunction of the immobilizer-ECU DMalfunction of the engine-A/T-ECU NOTE (1) If the registered ignition keys are close each other when starting the engine, radio interference may cause this code to be displayed. (2) This code may be displayed when registering the key encrypted code. NG Replace the engine-A/T-ECU. Check the trouble symptoms. NG Replace the immobilizer-ECU OK Check the trouble symptoms. OK Check the harness wire between the immobilizer-ECU and the engine-A/T-ECU, and repair if necessary.NG Replace Check the following connectors: D-122, D-202, E-13NG Repair www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-169 INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS Inspection procedure 1 Communication with all systems is not possible. Probable cause The cause is probably a defect in the power supply system (including earth) for the diagnosis line.DMalfunction of the diagnosis connector DOpen circuit or short-circuited between engine-A/T-ECU and diagnosis connector circuit DMalfunction of the MUT-II Check the earth line, and repair if necessary. (2) NG Replace the MUT-II. NG Check the harness wire between the power supply and diagnosis connector, and repair if necessary. OK Check the trouble symptoms.NG Repair (1) NGCheck the following connectors: D-27, D-210, D-211 OK NG RepairOK Check the harness wire between diagnosis connector and the engine-A/T-ECU. Measure at the diagnosis connecter D-23. (1) The voltage between terminal 16 and earth OK: Battery voltage (2) Continuity between 4 and earth Continuity between 5 and earth OK: Continuity Inspection procedure 2 Communication with engine-A/T-ECU is not possible. Probable cause The cause is probably a defect in the engine-A/T-ECU power supply circuit (including earth).DOpen circuit or short-circuited harness wire in the engine-A/T-ECU power supply circuit. DOpen circuit between engine-A/T-ECU and diagnosis connector DMalfunction of the engine-A/T-ECU NG Check the harness wire between engine-A/T-ECU and diagnosis connector.OKCheck the engine-A/T-ECU power supply and earth circuit. (Refer to P. 13A-189, Inspection procedure 24.) OK Check the trouble symptoms. Check the following connectors: D-06, D-23, D-122, D - 128, D-222, E-13NG Repair NOTE On vehicles with multi communication system (MMCS) or RV meter, if a malfunctioncannot be resolved after the procedure above, check the multi center display unit or RV meter and replace if necessary. (Refer to GROUP 54 - Clock, multi center display and RV meter.) www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-182 Inspection procedure 13 Hesitation, sag, stumble, poor acceleration or surge Probable cause The cause is probably a malfunction of the ignition system, air/fuel ratio control system, electronic controlled throttle valve system, compression pressure, etc.DMalfunction of the ignition system DMalfunction of the air/fuel ratio control system DMalfunction of the electronic-controlled throttle valve system DImproper compression pressure DAir stuck in the air intake system NO NG Check that the crankanglesensor andtiming beltcover are properly installed. OK Check that air is sucked in the air intake system. DBroken intake manifold gasket DDamaged vacuum hose DDamaged air intake hose OK To the nextpage MUT- IIData list 68 EGR valve (Refer to P.13A-198.)NGCheck the EGR valve system (Refer to P.13A-196, Inspection procedure 35.) OK MUT- IIData list 11 Oxygen sensor (Refer to P.13A-198.) OK: 0 - 400 mV and 600 - 1,000 mV alternates when the engine is idling(wait for 2 minutes after the en- gine is started).NGMeasure fuel high-pressure between the fuel pump (high pressure) and injector. (Refer to P.13A-222.) OK MUT- IIData list 11 Oxygen sensor (Refer to P.13A-198.) OK: 600 - 1,000 mV when theengine is suddenlyracedNGCheck the oxygen sensor system. (Refer to P.13A-131, code No.11.) OK MUT- IIData list 79 Throttle position sensor (1st channel) (Refer to P.13A-198.)NGCheck the throttle valve position feedback system (Refer to P.13A-162, code No.92.) OK MUT- IIData list 21 Engine coolant temperature sensor (Refer to P.13A-198.)NGCheck theengine coolant temperaturesensor system (Refer to P.13A-138, code No.21.) OK MUT- IIData list 25 Barometric pressure sensor (Refer to P.13A-198.)NGCheck the barometric pressure sensor system (Refer to P.13A-145, code No.25.) OK MUT- IIData list 13 Intake air temperature sensor (Refer to P.13A-198.)NGCheck the intake air temperature sensor system (Refer to P.13A-135, code No.13.) OK MUT- IIData list 26 Acceleratorpedal positionswitch (Refer to P.13A-198.)NGCheck the acceleratorpedal positionswitch system. (Refer to P.13A-192, Inspection procedure 28.) Check the ignition timing. (Refer to GROUP11A - Engine Adjustment) MUT- IISelf-Diag Code Is a diagnosis code displayed?YESRefer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS CODES. OK www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-183 OK Check the following items in that order. DCheck the sparkplug DCheck the EGR control system DCheck the compression pressure DCheck the fuel filter or fuelline for clogging OK Check ignition coil spark for each cylinder. 1. Remove the ignition coil. 2. Install a new sparkplug to the removed ignitioncoil. 3. Disconnect the injector intermediate connector. Caution Never touch the connector terminal as approx. 100 V is applied to the injector, or you are seriously injured. 4. Earth the sparkplug electrodesecurely. 5. Check that the sparkplug igniteswhen theengine is cranked.NGReplace the ignition coil. OK Measure fuel high-pressure between the fuel pump (high pressure) and injector. (Refer to P.13A-222.)NGRepair From the previouspage Check the trouble symptoms.Replace the injector. NG OK MUT- IIActuator Test 08 Purge control solenoid valve (Refer to P.13A-203.)NGCheck the purge control solenoid valve system (Refer to P.13A-197, Inspection procedure 36.) Inspection procedure 14 The feeling of impact or vibration when accelerating Probable cause In cases such as the above, the cause is probably that there is an ignition leak accompanying the increase in the sparkplug demand voltage during acceleration.DMalfunction of the ignition system Replace the ignition coil. NG OK Check the trouble symptoms. OK Check the sparkplugNGReplace NO MUT- IIData list 79 Throttle position sensor (1st channel) (Refer to P.13A-198.)NGCheck the throttle valve position feedback system (Refer to P.13A-162, code No.92.) MUT- IISelf-Diag Code Is a diagnosis code displayed?YESRefer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS CODES. www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-184 Inspection procedure 15 The feeling of impact or vibration when decelerating Probable cause The cause is probably insufficient intake air due to a faulty electronic-controlled throttle valve system.DMalfunction of the electronic - controlled throttle valve system OK Clean around the throttle valve. (Refer to P.13A-220.) OK MUT- IIData list 26 Acceleratorpedal positionswitch (Refer to P.13A-198.)NGCheck the acceleratorpedal positionswitch system (Refer to P.13A-192, Inspection procedure 28.) NO MUT- IIData list 79 Throttle position sensor (1st channel) (Refer to P.13A-198.)NGCheck the throttle valve position feedback system (Refer to P.13A-162, code No.92.) MUT- IISelf-Diag Code Are diagnosis codes displayed?YESRefer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS CODES. Inspection procedure 16 Knocking Probable cause In case as the above, the cause is probably that the heat value of the spark plug is inappropriate.DMalfunction of the detonation sensor DImproper heat range of the spark plugs. MUT- IISelf-Diag Code Is a diagnosis code set?YESRefer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS CODES. NO Does knocking occur when the vehicle is driven with the detonation sensor disconnected? (At this time, use the MUT-IIto check whether the ignition timing is retarded fromwhen the detonation sensor connector is connected.)NOCheck the detonation sensor system. (Refer to P.13A-146, code No.31.) YES Check the following items in that order. DSpark plugs DCheck if foreign materials (water, kerosine,etc.) got into fuel. Inspection procedure 17 Run-on (Dieseling) Probable cause Fuel leakage from injectors is suspected.DMalfunction of the injector Replace the injector. www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-185 Inspection procedure 18 Too high CO and HC concentration when idling Probable cause Abnormal air-fuel ratio is suspected.DMalfunction of the air/fuel ratio control system DDeteriorated catalyst OK To the nextpage NG Replace the ignition coil. OK Check ignition coil spark for each cylinder. 1. Remove the ignition coil. 2. Install a new sparkplug to the removed ignitioncoil. 3. Disconnect the injector intermediate connector. Caution Never touch the connector terminal as approx. 100 V is applied to the injector, or you are seriously injured. 4. Earth the sparkplug electrodesecurely. 5. Check that the sparkplug igniteswhen theengine iscranked.NG NG Measure fuel high -pressure between the fuelpump (high pressure) and injector. (Refer to P.13A-223.) Check the trouble symptoms. OK MUT- IIData list 11 Oxygen sensor (Refer to P.13A-198.) OK: Repeat 0 - 400 mV and 600 - 1,000 mV alternately during idling(wait for at least 2 minutes after the enginestarted to run at idle).OKReplace the oxygen sensor. OK MUT- IIData list 11 Oxygen sensor (Refer to P.13A-198.) OK: 600 - 1,000 mV when theengine is suddenlyracedNGCheck the oxygen sensor system. (Refer to P.13A-131, code No.11.) OK MUT- IIActuator Test 08 Purge control solenoid valve (Refer to P.13A-203.)NGCheck the purge control solenoid valve system (Refer to P.13A-197, Inspection procedure 36.) OK MUT- IIData list 68 EGR valve (Refer to P.13A-198.)NGCheck the EGR valve system (Refer to P.13A-196, Inspection procedure 35.) OK MUT- IIData list 25 Barometric pressure sensor (Refer to P.13A-198.)NGCheck the barometric pressure sensor system (Refer to P.13A-145, code No.25.) OK MUT- IIData list 13 Intake air temperature sensor (Refer to P.13A-198.)NGCheck the intake air temperature sensor system (Refer to P.13A-135, code No.13.) OK MUT- IIData list 21 Engine coolant temperature sensor (Refer to P.13A-198.)NGCheck theengine coolant temperaturesensor system (Refer to P.13A-138, code No.21.) NO Check the ignition timing. (Refer to GROUP 11A - Engine Adjustment.)NGCheck that the crankanglesensor andtiming beltcover are properly installed. MUT- IISelf-Diag Code Are diagnosis codes displayed?YESRefer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS CODES. www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
