AUTOMATIC TRANSMISSION -Troubleshooting 23-6 No.Inspection pro- cedure if there is an abnormality Diag- nosis code No. Check item Judgment value Test/operation Pre-test/opera- tion conditions 3Ignition switch: START Engine: StoppedStarting test at P or N positionStarting should be possibleStarting pos- sible/not possible-Starting not possible 4Driving after en- gine has warmed upDrive for 15 minutes or more until the A/T fluid temperature rises to 70 - 80_ C.Data list No.15 Gradually rises to 70 -80_ CA/T fluid tem- perature sensor15A/T fluid temper- ature sensor sys- tem 5Engine: Idling Selector lever position: NBrake pedal (re-test) (1) Depressed (2) ReleasedData List No. 26 (1) ON (2) OFFStop lamp switch26Stop lamp switch system A/C switch (1) ON (2) OFFData List No. 65 (1) ON (2) OFFDual pres- sure switch-Dual pressure switch system Accelerator pedal (1) Fully closed (2) ApplyData List No. 21 (1) The engine speed displayed on the tachome- ter is identical to the engine speed displayed on MUT-II. (2) Gradually in- creases from (1)Crank angle sensor <6G7> Engine speed sen- sor <4M4>21Crank angle sen- sor system <6G7> Engine speed sensor system <4M4> Data List No.73 <6G7> No.76 <4M4> (2) Data changes.Communica- tion with en- gine-ECU51Serial commu- nication system Selector lever posi- tionNo abnormal shock during shiftingMalfunction when start--Engine stalls dur- ing shifting (1) N to D (2) N to RWithin 2 seconds of time laging off-N-to-D shocks, large time lag -N-to-R shocks, large time lag -N-to-D, N-to-R shocks, large time lag Driving not possible-Does not move forward -Does not reverse -Does not move (forward or re- verse) www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-12 CHART CLASSIFIED BY DIAGNOSIS CODE Diagnosis codeDiagnosis itemReference page 11Accelerator pedal position sensor (APS) systemShort-circuit23-13 12Open circuit23-14 14Incorrect sensor adjustment23-15 15A/T fluid temperature sensor systemOpen circuit23-17 21Crank angle sensor system <6G7> or engine speed sensor system <4M4>Open circuit23-18 22Input shaft speed sensor systemShort-circuit/Open circuit23-20 23Output shaft speed sensor systemShort-circuit/Open circuit23-22 25Wide open throttle switch systemShort-circuit/Open circuit23-24 26Stop lamp switch systemShort-circuit23-25 31LR solenoid valve systemShort-circuit/Open circuit23-26 32UD solenoid valve systemShort-circuit/Open circuit23-27 332nd solenoid valve systemShort-circuit/Open circuit23-28 34OD solenoid valve systemShort-circuit/Open circuit23-29 35RED solenoid valve systemShort-circuit/Open circuit23-30 36DCC solenoid valve systemShort-circuit/Open circuit23-31 411st without completion of shifting23-32 422nd without completion of shifting23-34 433rd without completion of shifting23-36 444th without completion of shifting23-38 455th without completion of shifting23-40 46Reverse without completion of shifting23-42 51Problem communicating with engine-ECU23-43 52Damper clutch control systemSystem malfunc- tion23-44 54A/T control relay systemShort-circuit to earth/Open circuit23-45 56N range lamp systemShort-circuit to earth23-46 www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-20 Code No. 22 Input shaft speed sensor systemProbable cause If no output pulse from the input shaft speed sensor is detected for 1 second or more while the vehicle is driving at 30 km/h or more in 4th, it isjudged that there is a short-circuit oropencircuit in the input shaft speed sensor, and code No. 22 is output. If code No. 22 is output 4 times, the transmission is locked at 3rd gear (D) or 2nd gear (downshift operation in Sports mode) as a fail-safe measure, and the N range indicator lampflashes at 1 Hz.DMalfunction of input shaft speed sensor DMalfunction of reverse clutch retainer DMalfunction of harness or connector DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> LRefer to the Transmission Workshop Manual. Transient malfunction (Refer to GROUP 00 - Points to Note for Transient Malfunctions.) OK NG Check the following connectors: <6G7> D-121,<4M4>D-108 To the nextpage NG OKNG NG RepairCheck the following connectors: <6G7> D-122,<4M4>D-108 Replace the engine-A/T-ECU or A/T-ECU. OKMUT- IIData List DNo. 22 Input shaft speed sensor OK:Refer to P.23-61 (Data List Chart). Repair OK NG NG Check the trouble symptoms. OK Measure at engine-A/T-ECU connector D-121 <6G7>, or at A/T-ECU connector D-107 <4M4>. DMeasure at the ECU terminals DIgnition switch: ON D<6G7> Voltage between terminal 81 and earth D<4M4> Voltage between terminal 43 and earth OK:0.5 V or less Replace the engine-A/T-ECU or A/T-ECU. NGCheck the trouble symptoms. NG Check the trouble symptoms. Check the following connectors: <6G7> D-121, D-122,<4M4>D-108 Replace the engine-A/T-ECU or A/T-ECU. OK OK Measure at engine-A/T-ECU connector D-122 <6G7>, or at A/T-ECU connector D-108 <4M4>. DMeasure at the ECU terminals DDisconnect C-23 DIgnition switch: ON D<6G7> Voltage between terminal 103 and earth D<4M4> Voltage between terminal 31 and earth OK:4.8 - 5.2 V Measure the output wave pattern of the input shaft speed sensor at engine-A/T-ECU connectors D-121 and D-122 <6G7>, or at A/T-ECU connector D-108<4M4>(using an oscilloscope). DVehicle speed: approx. 50 km/h DShift range: 4th D<6G7> Voltage between terminal 81 of D-121 and terminal 103 of D-122 D<4M4> Voltage between terminal 31 of D-108 and terminal 43 of D-108 OK:A wave pattern such as the one shown on P.23-69 (Check Procedure Using an Oscilloscope) should be output, and the maximum value should be 4.8 V or more and the minimumval- ue should be 0.8 V or less. There should be no noise in the output wave pattern.NG NG Repair www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-32 Code No.41 1st without completion of shiftingProbable cause If the output shaft speed sensor output multiplied by the 1st gear ratio is not identical to the input shaft speed sensor output after shifting to 1st, code No. 41 is output. If code No. 41 is output 4 times, the transmission is fixed in 3rd and the N range lampflashes at a rate of 1 Hz.DMalfunction of input shaft speed sensor DMalfunction of output shaft speed sensor DMalfunction of harness or connector DMalfunction of solenoid valve DMalfunction of reverse clutch retainer DMalfunction of direct planetary carrier DMalfunction of LR brake system DMalfunction of UD clutch system DMalfunction of RED brake system DMalfunction of one-way clutch system DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> DNoise is generated. LRefer to the Transmission Workshop Manual. Repair NO YES YES MUT- IISelf-Diag Code DIs code No. 22 output?Code No. 22 Input shaft speed sensor system check (Refer to P.23-20.) OKNO Code No. 23 Input shaft speed sensor system check (Refer to P.23-22.)MUT- IIActuator Test DIs code No. 23 output? NG NGMUT- IIActuator Test DNo.1 LR solenoid valve DNo.2 UD solenoid valve DNo.3 2ND solenoid valve DNo.4 OD solenoid valve DNo.5 RED solenoid valve OK:The sound of operation should be heard.Replace the appropriate solenoid valve. L DCheck the harness between the input shaft speed sensor and the engine-A/T-ECU. <6G7> DCheck the harness between the input shaft speed sensor and the A/T-ECU.<4M4> Replace the input shaft speed sensor. LNG Check the trouble symptoms. Overhaul the A/T. L DReplace the reverse clutch retainer. Check the trouble symptoms. Eliminate the cause of the noise.To the nextpage Measure the output wave pattern of the input shaft speed sensor at engine-A/T-ECU connectors D-121 and D-122 <6G7>, or at A/T-ECU connector D-108<4M4>(using an oscilloscope). DVehicle speed: approx. 50 km/h DShift range: 4th <6G7> Voltage between No.81 (D-121) and No.103 (D-122) <4M4> Voltage between No.31(D-108) and No.43 (D-108) OK:A wave pattern such as the one shown on P.23-69 (Check Procedure Using an Oscilloscope) should be output, and the maximum value should be 4.8 V or more and the minimumvalue should be 0.8 V or less. There should be no noise in the output wave pattern. OKOK NG NG www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-34 Code No. 42 2nd without completion of shiftingProbable cause If the output shaft speed sensor output multiplied by the 2nd gear ratio is not identical to the input shaft speed sensor output after shifting to 2nd, code No. 42 is output. If code No. 42 is output 4 times, the transmission is fixed in 3rd and the N range lampflashes at a rate of 1 Hz.DMalfunction of input shaft speed sensor DMalfunction of output shaft speed sensor DMalfunction of harness or connector DMalfunction of solenoid valve DMalfunction of reverse clutch retainer DMalfunction of direct planetary carrier DMalfunction of 2ND brake system DMalfunction of UD clutch system DMalfunction of RED brake system DMalfunction of one-way clutch system DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> DNoise is generated. LRefer to the Transmission Workshop Manual. Repair NO YES YES MUT- IISelf-Diag Code DIs code No. 22 output?Code No. 22 Input shaft speed sensor system check (Refer to P.23-20.) OK NO Code No. 23 Output shaft speed sensor system check (Refer to P.23-22.)MUT- IIActuator Test DIs code No. 23 output? NG NGMUT- IIActuator Test DNo.1 LR solenoid valve DNo.2 UD solenoid valve DNo.3 2ND solenoid valve DNo.4 OD solenoid valve DNo.5 RED solenoid valve OK:The sound of operation should be heard.Replace the appropriate solenoid valve. L DCheck the harness between the input shaft speed sensor and the engine-A/T-ECU. <6G7> DCheck the harness between the input shaft speed sensor and the A/T-ECU.<4M4> Replace the input shaft speed sensor. LNG Check the trouble symptoms. Overhaul the A/T. L DReplace the reverse clutch retainer. Check the trouble symptoms. Eliminate the cause of the noise.To the nextpage Measure the output wave pattern of the input shaft speed sensor at engine-A/T-ECU connectors D-121 and D-122 <6G7>, or at A/T-ECU connector D-108<4M4>(using an oscilloscope). DVehicle speed: approx. 50 km/h DShift range: 4th <6G7> Voltage between No.81 (D-121) and No.103 (D-122) <4M4> Voltage between No.31(D-108) and No.43 (D-108) OK:A wave pattern such as the one shown on P.23-69 (Check Procedure Using an Oscilloscope) should be output, and the maximum value should be 4.8 V or more and the minimumvalue should be 0.8 V or less. There should be no noise in the output wave pattern. OKOK NG NG www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-36 Code No.43 3rd without completion of shiftingProbable cause If the output shaft speed sensor output multiplied by the 3rd gear ratio is not identical to the input shaft speed sensor output after shifting to 3rd, code No. 43 is output. If code No. 43 is output 4 times, the transmission is fixed in 3rd and the N range lampflashes at a rate of 1 Hz.DMalfunction of input shaft speed sensor DMalfunction of output shaft speed sensor DMalfunction of harness or connector DMalfunction of solenoid valve DMalfunction of reverse clutch retainer DMalfunction of direct planetary carrier DMalfunction of UD clutch system DMalfunction of OD clutch system DMalfunction of RED brake system DMalfunction of one-way clutch system DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> DNoise is generated. LRefer to the Transmission Workshop Manual. Repair NO YES YES MUT- IISelf-Diag Code DIs code No. 22 output?Code No. 22 Input shaft speed sensor system check (Refer to P.23-20.) OK NO Code No. 23 Output shaft speed sensor system check (Refer to P.23-22.)MUT- IIActuator Test DIs code No. 23 output? NG NGMUT- IIActuator Test DNo.1 LR solenoid valve DNo.2 UD solenoid valve DNo.3 2ND solenoid valve DNo.4 OD solenoid valve DNo.5 RED solenoid valve OK:The sound of operation should be heard.Replace the appropriate solenoid valve. L DCheck the harness between the input shaft speed sensor and the engine-A/T-ECU. <6G7> DCheck the harness between the input shaft speed sensor and the A/T-ECU.<4M4> Replace the input shaft speed sensor. LNG Check the trouble symptoms. Overhaul the A/T. L DReplace the reverse clutch retainer. Check the trouble symptoms. Eliminate the cause of the noise.To the nextpage Measure the output wave pattern of the input shaft speed sensor at engine-A/T-ECU connectors D-121 and D-122 <6G7>, or at A/T-ECU connector D-108<4M4>(using an oscilloscope). DVehicle speed: approx. 50 km/h DShift range: 4th <6G7> Voltage between No.81 (D-121) and No.103 (D-122) <4M4> Voltage between No.31(D-108) and No.43 (D-108) OK:A wave pattern such as the one shown on P.23-69 (Check Procedure Using an Oscilloscope) should be output, and the maximum value should be 4.8 V or more and the minimumvalue should be 0.8 V or less. There should be no noise in the output wave pattern. OKNG NG OK www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-38 Code No.44 4th without completion of shiftingProbable cause If the output shaft speed sensor output multiplied by the 4th gear ratio is not identical to the input shaft speed sensor output after shifting to 4th, code No. 44 is output. If code No. 44 is output 4 times, the transmission is fixed in 3rd and the N range lampflashes at a rate of 1 Hz.DMalfunction of input shaft speed sensor DMalfunction of output shaft speed sensor DMalfunction of harness or connector DMalfunction of solenoid valve DMalfunction of reverse clutch retainer DMalfunction of direct planetary carrier DMalfunction of UD clutch system DMalfunction of 2ND brake system DMalfunction of OD clutch system DMalfunction of DIR clutch system DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> DNoise is generated. LRefer to the Transmission Workshop Manual. Repair NO YES YES MUT- IISelf-Diag Code DIs code No. 22 output?Code No. 22 Input shaft speed sensor system check (Refer to P.23-20.) OK NO Code No. 23 Output shaft speed sensor system check (Refer to P.23-22.)MUT- IIActuator Test DIs code No. 23 output? NG NGMUT- IIActuator Test DNo.1 LR solenoid valve DNo.2 UD solenoid valve DNo.3 2ND solenoid valve DNo.4 OD solenoid valve DNo.5 RED solenoid valve OK:The sound of operation should be heard.Replace the appropriate solenoid valve. L DCheck the harness between the input shaft speed sensor and the engine-A/T-ECU. <6G7> DCheck the harness between the input shaft speed sensor and the A/T-ECU.<4M4> Replace the input shaft speed sensor. LNG Check the trouble symptoms. Overhaul the A/T. L DReplace the reverse clutch retainer. Check the trouble symptoms. Eliminate the cause of the noise.To the nextpage Measure the output wave pattern of the input shaft speed sensor at engine-A/T-ECU connectors D-121 and D-122 <6G7>, or at A/T-ECU connector D-108<4M4>(using an oscilloscope). DVehicle speed: approx. 50 km/h DShift range: 4th <6G7> Voltage between No.81 (D-121) and No.103 (D-122) <4M4> Voltage between No.31(D-108) and No.43 (D-108) OK:A wave pattern such as the one shown on P.23-69 (Check Procedure Using an Oscilloscope) should be output, and the maximum value should be 4.8 V or more and the minimumvalue should be 0.8 V or less. There should be no noise in the output wave pattern. OKOK NG NG www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-40 Code No.45 5th without completion of shiftingProbable cause If the output shaft speed sensor output multiplied by the 5th gear ratio is not identical to the input shaft speed sensor output after shifting to 5th, code No. 45 is output. If code No. 45 is output 4 times, the transmission is fixed in 3rd and the N range lampflashes at a rate of 1 Hz.DMalfunction of input shaft speed sensor DMalfunction of output shaft speed sensor DMalfunction of harness or connector DMalfunction of solenoid valve DMalfunction of reverse clutch retainer DMalfunction of direct planetary carrier DMalfunction of 2ND brake system DMalfunction of OD clutch system DMalfunction of DIR clutch system DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU.<4M4> DNoise is generated. LRefer to the Transmission Workshop Manual. Repair NO YES YES MUT- IISelf-Diag Code DIs code No. 22 output?Code No. 22 Input shaft speed sensor system check (Refer to P.23-20.) OK NO Code No. 23 Output shaft speed sensor system check (Refer to P.23-22.)MUT- IIActuator Test DIs code No. 23 output? NG NGMUT- IIActuator Test DNo.1 LR solenoid valve DNo.2 UD solenoid valve DNo.3 2ND solenoid valve DNo.4 OD solenoid valve DNo.5 RED solenoid valve OK:The sound of operation should be heard.Replace the appropriate solenoid valve. L DCheck the harness between the input shaft speed sensor and the engine-A/T-ECU. <6G7> DCheck the harness between the input shaft speed sensor and the A/T-ECU.<4M4> Replace the input shaft speed sensor. LNG Check the trouble symptoms. Overhaul the A/T. L DReplace the reverse clutch retainer. Check the trouble symptoms. Eliminate the cause of the noise.To the nextpage Measure the output wave pattern of the input shaft speed sensor at engine-A/T-ECU connectors D-121 and D-122 <6G7>, or at A/T-ECU connector D-108<4M4>(using an oscilloscope). DVehicle speed: approx. 50 km/h DShift range: 4th <6G7> Voltage between No.81 (D-121) and No.103 (D-122) <4M4> Voltage between No.31(D-108) and No.43 (D-108) OK:A wave pattern such as the one shown on P.23-69 (Check Procedure Using an Oscilloscope) should be output, and the maximum value should be 4.8 V or more and the minimumvalue should be 0.8 V or less. There should be no noise in the output wave pattern. OKNG NG OK www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
