GDI -Troubleshooting 13A-139 OK Check the harness wire between the engine coolant temperaturesensor and the engine-A/T-ECU. MUT- IIData list 21 Engine coolant temperature sensor OK: When the engine iscold, the temperature is roughly the same asambient tem- perature. If warm, it is 80 - 120_C.OKTransient malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) NG NG Replace OK Measure at engine coolant temperature sensor connector B-56. 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 2 and earth OK: 2Wor less(1) NGMeasure at engine-ECU connector D-120. DMeasure the voltage at the engine-A/T-ECU terminal. DDisconnect connector B-56. DIgnition switch: ON DVoltage between terminal 44 and earth OK: 4.8 - 5.2 VOKCheck the following connector: D-120 NG Repair NG NG Repair OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. OK Check the following connector: B-56NG Repair (2) NG OKRepair OK Check the harness wire between the engine coolant temperaturesensor and the engine-A/T-ECU.NG Repair NG Check the harness wire between the engine coolant temperaturesensor and the engine-A/T-ECU.NG Repair OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. OK To the nextpage Measure at engine coolant temperature sensor connector B-56. DDisconnect the connector and measure at the harness side. DResistance between terminals 1 and 2 OK: At 20_C of engine coolant temperature: 2.1 - 2.7 kW At 80_C of engine coolant temperature: 0.26 - 0.36 kW Check the following connector: D-120 Check the following connector: D-121 www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-140 OK Measure at engine coolant temperature sensor connector B-56. DUse test harness (MB991658) to connect the connector, and measure at the pick-up harness. DIgnition switch: ON DVoltage between terminal 1 and earth OK: At 0_C of engine coolant temperature: 3.2 - 3.8 V At 20_C of engine coolant temperature: 2.3 - 2.9 V At 40_C of engine coolant temperature: 1.3 - 1.9 V At 80_C of engine coolant temperature: 0.3 - 0.9 VNGCheck theengine coolant temperature sensor. (Refer to P.13A-227.)NG Repair OK Check the harness wire between the engine coolant temperaturesensor and the engine-A/T-ECU, and repair if necessary. OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. OK Check the following connectors: D-120, D-121NG Repair From the previouspage Code No.22 Crank angle sensor systemProbable cause Range of Check DEngine is cranking Set Conditions DSensor output voltage does not change for 4 seconds (no pulse signal input).DMalfunction of the crankanglesensor. DOpen or short circuit in the crankanglesensor circuit or loose connector contact. DMalfunction of engine-A/T-ECU www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-141 OK Check the harness wire between the crankanglesensor and the engine-A/T-ECU, and repair if necessary. MUT- IIData list 22 Crankanglesensor (Refer to P.13A-198, DATA LIST REFERENCE TABLE.)OKIntermittent malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) OK Measure at the crankanglesensor connector B-52. DDisconnect the connector and measure at the harness side. (1) The resistance between terminal 1 and earth OK: 2Wor less (2) The voltage between terminal 2 and earth (Ignition switch: ON) OK: 4.8 - 5.2 V (3) The voltage between terminal 3 and earth (Ignition switch: ON) OK: System voltage(1) NGCheck the harness between the crankanglesensor and earth, and repair if necessary. NG Repair NG Check the following connector: D-120NG Repair NG Check the following connector: B-52NG Repair (2) NGMeasure at engine-A/T-ECU connector D-120. DMeasure the voltage at the engine-A/T-ECU terminal. DDisconnect the connector B-52 DIgnition switch: ON DThe voltage between terminal 45 and earth. OK: 4.8 - 5.2 VOKCheck the following connector : D-120 Check the following connector: B-25XNG Repair OK Check the harness wire between the crankanglesensor and the engine-A/T-ECU.NG Repair OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. (3) NG OK Check the harness wire between the crankanglesensor and theengine control relay, and repair if necessary.OK Use an analyzer to measure the output waveform at the crankangle sensor connector B-52. DUse the test harness (MD998478) to connect the connector, and measure at the pickup harness side. DEngine: Idling DThe voltage between terminal 2 and earth OK: A normal waveform should be displayed as described on P.13A-212 (Inspection Procedure Using an Ana- lyzer). Its maximum value should be 4.8 V or more, and its minimumvalue should be 0.6 V or less with no noise in waveformNGCheck the crankanglesensor vaneNG Replace OK Replace the crankanglesensor OK Check the trouble symptoms. NG NG Repair OK Check the harness wires between the crankanglesensor and the engine-A/T-ECU, crankanglesensor and the engine controlrelay, and the crankanglesensor and earth. Then, repair if necessary. OK Check the trouble symptoms. NG Replace the engine-A/T-ECU. Check the following connectors: B-25X, D-120 www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-142 Code No.23 Camshaft position sensor systemProbable cause Range of Check DAfter theengine wasstarted Set Conditions DThe sensor output voltage does not change for 4 seconds (no pulse signal input).DMalfunction of the camshaft position sensor DOpen or short circuit in the camshaft position sensor circuit or loose connector contact. DMalfunction of engine-A/T-ECU www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting 13A-143 OK Check the harness wire between the intermediate connector and the engine-A/T-ECU, and repair if necessary.NG Repair NG NG Repair NG Repair (2) NGMeasure at engine-A/T-ECU connector D-120. DMeasure the voltage at the engine-A/T-ECU terminal. DDisconnect connector B-110. DIgnition switch: ON DThe voltage between terminal 50 and earth OK: 4.8 - 5.2 VOKCheck the following connector : D-120 Check the harness wire between the intermediate connector and earth, and repair if necessary. OK Check the harness wire between the intermediate connector and the engine controlrelay, and repair if necessary. (3) NG OK Measure at intermediate connector B-110 DDisconnect the connector and measure at the harness side. (1) The voltage between terminal 1 and earth (Ignition switch: ON) OK: System voltage (2) The voltage between terminal 2 and earth (Ignition switch: ON) OK: 4.8 - 5.2 V (3) The resistance between terminal 3 and earth OK: 2Wor less(1) NGCheck the following connector: B-25XNG Repair OK Replace the camshaft position sensor Check the trouble symptoms. OK NG Repair OK Check the harness wires between the intermediate connector and the engine-A/T-ECU, the intermediate connector and theengine controlrelay, and the intermediate connector and earth. Then, repair if necessary. 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 Use an analyzer to measure the output waveform 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 DThe voltage between terminal 2 and earth OK: A normal waveform should be displayed as described on P.13A-212 (Inspection Procedure Using an Ana- lyzer), its maximum value should be 4.8 V or more, and its minimumvalue should be 0.6 V or less with no noise in waveform.(1) NGCheck the following connector: B-23NG Repair OK Check the harness wire between the camshaft position sensor and the intermediate connector.NG Repair NG Check the camshaft position sensing cylinderNG OK Check the trouble symptoms.Intermittent malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. Replace OK Check the following connector: B-110 Check the following connector: D-120 Check the following connectors: B-25X, D-120 www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
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-145 Code No.25 Barometric pressure sensor systemProbable cause Range of Check DTwo seconds have passed since the ignition switch is turned ON or the engine startingprocess is completed. DBattery voltage: 8 V or more Set Conditions DThe sensor output voltage is 4.5 V or more for four seconds (equivalent to 114 kPa of barometric pressure) or DThe sensor output voltage is 0.2 V or less (equivalent to 53 kPa of barometric pressure)DMalfunction of barometric pressure sensor DOpen or short circuit in barometric pressure sensor circuit or loose connector contact DMalfunction of engine-A/T-ECU (2) NGCheck the following connector: D-121NG Repair OK Check the harness between the air flow sensor and the engine-A/T-ECU, and repair if necessary. MUT- IIData list 25 Barometric pressure sensor (Refer to P.13A-198, DATA LIST REFERENCE TABLE.)OKTransient malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) NG NG Repair OK Measure at air flow sensor connector B-120. 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 5 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 between the air flow sensor and the engine-A/T-ECU.NG Repair OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. OK Measure at air flow sensor connector B-120. DConnect connector terminals No.1, No.2 and No.5 only by using test harness (MB991709), 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: Altitude 0 m: 3.7 - 4.3 V Altitude 1200 m: 3.2 - 3.8 V (3) Voltage between terminal 5 and earth OK: 0.5 V or less(1) NGCheck the following connector: D-121NG Repair OK Check the harness between the air flow sensor and the engine-A/T-ECU, and repair if necessary. OK To the nextpage(3) NG (2) NG Replace the air flow sensor. NG Check the following connector: D-120NG Repair OK Check the harness between the air flow sensor and the engine-A/T-ECU, and repair if necessary. OK Check the harness between the air flow sensor and the engine-A/T-ECU.NG Repair OK Check the trouble symptoms.NGReplace the engine-A/T-ECU. Check the following connector: B-120 Check the trouble symptoms. www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
GDI -Troubleshooting GDI -Troubleshooting 13A-146 OK Check the harness between the air flow sensor and the engine-A/T-ECU, and repair if necessary. From the previouspage OK Measure at engine-A/T-ECU connector D-120. DMeasure the voltage at the engine-A/T-ECU terminal. DIgnition switch: ON DVoltage between terminal 55 and earth OK: Altitude 0 m: 3.7 - 4.3 V Altitude 1200 m: 3.2 - 3.8 VNGCheck the following connector: D-120NGRepair OK Check the trouble symptoms. OKCheck the following connector: D-120NG Repair NG Replace the engine-A/T-ECU. Code No.31 Detonation sensor systemProbable cause Range of Check DEngine: Two seconds after theengine has beenstarted Set Conditions DChanges in sensor output voltage (detonation sensor peak voltage per 1/3 crankshaft rotation) in 200 consecutivecycles are0.08 V or less.DMalfunction of the detonation sensor DOpen or short circuit in the detonation sensor circuit or loose connector contact DMalfunction of engine-A/T-ECU Check the following connector: B-05NG Repair OK Measure at the detonation sensor connector B-05. DDisconnect the connector and measure at the harness side. DThe resistance between terminal 2 and earth OK: 2Wor lessNGCheck the harness wire between the detonation sensor and earth, and repair if necessary. OK Check the following connector: D-121NG Repair OK Check the harness wire between the detonation sensor and the engine-A/T-ECU.NG Repair OK Check the trouble symptoms.OKIntermittent malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) NG Replace the detonation sensor. Check the trouble symptoms. NG Replace the engine-A/T-ECU. www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk