AUTOMATIC TRANSMISSION -Troubleshooting 23-22 Code No. 23 Output shaft speed sensor systemProbable cause If the output from the output shaft speed sensor is 50% or less continuously for 1 second or more while the vehicle is driving at 30 km/h or more in 4th, it is judged that there is ashort-circuit oropencircuit in the output shaft speed sensor, and code No. 23 is output. If code No. 23 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 output shaft speed sensor DMalfunction of direct planetary carrier DMalfunction of harness or connector DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> LRefer to the Transmission Workshop Manual. NG Repair NG Transient malfunction (Refer to GROUP 00 - Points to Note for Transient Malfunctions.) OK NG Check the following connectors: <6G7> D-122,<4M4>D-108 To the nextpage NG OK 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. 23 Output shaft speed sensor system OK:Refer to P.23-61 (Data List Chart). Repair OK OK 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 terminals 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 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-02 DIgnition switch: ON D<6G7>Voltage between terminals 104 and earth D<4M4> Voltage between terminal 32 and earth OK:4.8 - 5.2 VNG Measure the output wave pattern of the output 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 104 of D-122 D<4M4> Voltage between terminal 32 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 Repair NG www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-23 NG From the previouspage OK(1)NG NG Repair Check the following connector:E-113 OK NG Repair Check the following connector:E-113 OK Replace the output shaft speed sensor. L(2)NG (3)NG NG Repair Measure at output shaft speed sensor connector C-23. DDisconnect the connector and measure at the harness side. (1) Resistance between terminal 1 and earth OK:2 Wor less (2) Voltage between terminal 2 and earth (Ignition switch: ON) OK:4.8 - 5.2 V (3) Voltage between terminal 3 and earth (Ignition switch: ON) OK:System voltage Check the harness between the output shaft speed sensor and the ignition switch, and repair if necessary.OKCheck the following connectors: D-208, D-213, D-32, E-115 NG Check the trouble symptoms. OK NG RepairCheck the following connectors: D-208, D-213, D-32, E-115, E-113 NG Repair OK NG Check the trouble symptoms. NG Eliminate the cause of the noise.Overhaul the A/T. DReplace the direct planetary carrier.Check the trouble symptoms. OK NG RepairCheck the following connectors: <6G7> D-121, D-122, C-24,<4M4> D-108, C-24 DCheck the harness between the output shaft speed sensor and the engine-A/T-ECU (earth line), and repair if necessary. <6G7> DCheck the harness between the output shaft speed sensor and the A/T-ECU (sensor line), and repair if necessary.<4M4> DCheck the harness between the output shaft speed sensor and the engine-A/T-ECU (earth line), and repair if necessary. <6G7> DCheck the harness between the output shaft speed sensor and the A/T-ECU (earth line), and repair if necessary.<4M4> DCheck the harness between the output shaft speed sensor and the engine-A/T-ECU. <6G7> DCheck the harness between the output shaft speed sensor and the A/T-ECU.<4M4> DCheck the harness between the output shaft speed sensor and the ignition switch. www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-24 Code No.25 Wide open throttle switch systemProbable cause If the wideopen throttleswitch does not turn OFF when the acceleratorpedal is not depressed, there is a short circuit in the wideopen throttleswitch and diagnosis code No. 25 is output.DMalfunction of wideopen throttleswitch DMalfunction of harness and connectors DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> Transient malfunction (Refer to GROUP 00 - Points to Note for Transient Malfunctions.) OK OKOK OKNG OKNG NG Check the trouble symptoms. Replace the engine-A/T-ECU or A/T-ECU. Measure at Wide open throttleswitch connector D-134 DDisconnect the connector and measure at the harness side. DIgnition switch: ON DVoltage between terminal 1 and earth OK:System voltageNG Replace NG RepairCheck the following connectors:<6G7-L.H. drive vehicles> D-122, D-134, <6G7-R.H. drive vehicles> D-122, E-11, D-124, D-134, <4M4-L.H. drive vehicles> D-109, D-134, <4M4-R.H. drive vehicles> D-109, E-11, D-124, D-134 Check the following connector: D-14DCheck the harness between the Wideopen throttleswitch and the engine-A/T-ECU, and repair if necessary. <6G7> DCheck the harness between the Wideopen throttleswitch and the A/T-ECU, and repair if necessary.<4M4> MUT- IIData list DNo.25 Wide open throttleswitch OK:The switch turns ON when fullyopen the accelerator the switch turns OFF when fully close the accelera- tor. Wide open throttleswitch single part check RepairNG www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-25 Code No. 26 Stop lamp switch systemProbable cause If the stoplampswitch is continuously on for 5 minutes or more while the vehicle isbeing driven, it is judged that there is ashort-circuit in the stoplamp switch and code No. 26 is output.DMalfunction of brakepedal DMalfunction of stoplampswitch DMalfunction of harness or connector DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> NG NG MUT- IIData List DNo. 26 Stoplampswitch system OK:The switch turns ON when brakepedal is depressed the switch turns OFF when the brakepedal is released.Transient malfunction (Refer to GROUP 00 - Points to Note for Transient Malfunctions.) OK OK OK OKNG Repair Repair Check the following connectors: D-26, D-27 D-124, D-27Check the harness between the stop lampswitch and the battery, and repair if necessary. OK OK NG Brakepedal heightcheck (Refer to GROUP 35A - On-vehicle Service.) OKNG Adjust OK OK NG NG Check the trouble symptoms.Replace the engine-A/T-ECU or A/T-ECU. Check the following connectors: <6G7-L.H. drive vehicles> D-27, D-26, D-33, E-13, D-128, D-122, <6G7-R.H. drive vehicles> D-27, D-124, E-13, D-128, D-122, <4M4-L.H. drive vehicles> D-27, D-26, D-33, E-13, D-128, D-109 <4M4-R.H. drive vehicles> D-27, D-124, E-13, D-128, D-109Measure at engine-A/T-ECU connector D-122 <6G7>, A/T-ECU connector D-109 <4M4>. DMeasure at the ECU terminals D<6G7> Voltage between terminals 123 and earth D<4M4> Voltage between terminal 59 and earth OK:System voltage when brake pedal is depressed 1 V or less when the brake pedal is released Measure at stoplampswitch connector D-136. DDisconnect the connector and measure at the harness side. DVoltage between terminals 2 and earth OK:System voltageNG Replace NG Repair Stoplampswitch check (Refer to GROUP 35A - On-vehicle Service.) Check the following connector: D-136 RepairNG Check the following connectors: <6G7> D-122,<4M4>D-109 DCheck the harness between the stoplampswitch and the engine-A/T-ECU, and repair if necessary. <6G7> DCheck the harness between the stoplampswitch and the A/T-ECU, and repair if necessary. <4M4> DCheck the harness between the stoplampswitch and the battery, and repair if necessary. www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-26 Code No. 31 LR solenoid valve systemProbable cause If the drive terminal voltage of the LR solenoid valve is 3.0 V or less, it is judged that there is ashort-circuit oropencircuit in the LR solenoid valve, and the corresponding code is output. The transmission will be fixed in 3rd as a fail-safe measure, and the N range indicator will flash at a rate of 1 Hz.DMalfunction of LR solenoid valve DMalfunction of harness or connector DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> LRefer to the Transmission Workshop Manual. NO YES OK MUT- IISelf-Diag Code DIs code No. 54 output?Code No. 54 - A/T control relay system check (Refer to P.23-103.) OK NG Transient malfunction (Refer to GROUP 00 - Points to Note for Transient Malfunctions.)MUT- IIActuator Test DNo. 1 LR solenoid valve OK:Sound of operation can be heard OK Check the following connectors:<6G7> D-122,<4M4>D-109 OK NG NG Replace the engine-A/T-ECU or A/T-ECU. Repair OK Check the trouble symptoms. OK NG Check the following connectors:E-113, D-12 NG Repair Check the harness between the solenoid valve assembly and the A/T control relay, and repair if necessary. Check the following connectors:<6G7> D-122, E-113, D-12 <4M4> D-109, E-113,D-12NG NG RepairCheck the following connector:C-04 Replace the LR solenoid valve L OK Measure at solenoid valve assembly connector C-04. DDisconnect the connector and measure at the solenoid valve side. DResistance between terminals 6 and 10 OK:2.7 - 3.4 W OK Measure at engine-A/T-ECU connector D-122 <6G7>, or at A/T-ECU connector D-109 <4M4>. DMeasure at the ECU terminals DIgnition switch: ON D<6G7> Voltage between terminal 129 and earth D<4M4> Voltage between terminal 62 and earth OK:System voltage DCheck the harness between the solenoid valve assembly and the engine-A/T-ECU, and repair if necessary. <6G7> DCheck the harness between the solenoid valve assembly and the A/T-ECU, and repair if necessary.<4M4> DCheck the harness between the solenoid valve assembly and the A/T control relay, and repair if necessary.NG Repair NG Measure at solenoid valve assembly connector C-04. DDisconnect the connector and measure at the harness side. DIgnition switch: ON DVoltage between terminal 10 and earth OK:System voltage www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-27 Code No. 32 UD solenoid valve systemProbable cause If the drive terminal voltage of the UD solenoid valve is 3.0 V or less, it is judged that there is ashort-circuit oropencircuit in the UD solenoid valve, and the corresponding code is output. The transmission will be fixed in 3rd as a fail-safe measure, and the N range indicator will flash at a rate of 1 Hz.DMalfunction of UD solenoid valve DMalfunction of harness or connector DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> LRefer to the Transmission Workshop Manual. NO YES OK MUT- IISelf-Diag Code DIs code No. 54 output?Code No. 54 - A/T control relay system check (Refer to P.23-103.) OKNG Transient malfunction (Refer to GROUP 00 - Points to Note for Transient Malfunctions.)MUT- IIActuator Test DNo.2 UD solenoid valve OK:Sound of operation can be heard OK Check the following connectors:<6G7> D-122,<4M4>D-107 OK NG NG Replace the engine-A/T-ECU or A/T-ECU. Repair OK NG Check the trouble symptoms. OK NG Check the following connectors:E-113, D-12 NG Repair Check the harness between the solenoid valve assembly and the A/T control relay, and repair if necessary. Check the following connectors:<6G7> D-122, E-113, D-12, <4M4> D-107, E-113,D-12NG NG RepairCheck the following connector:C-04 Measure at solenoid valve assembly connector C-04. DDisconnect the connector and measure at the harness side. DIgnition switch: ON DVoltage between terminals 9 and earth OK:System voltage Replace the UD solenoid valve. L OK Measure at solenoid valve assembly connector C-04. DDisconnect the connector and measure at the solenoid valve side. DResistance between terminals 3 and 9 OK:2.7 - 3.4 W OK Measure at engine-A/T-ECU connector D-122 <6G7>, or at A/T-ECU connector D-107 <4M4>. DMeasure at the ECU terminals DIgnition switch: ON D<6G7> Voltage between terminal 120 and earth D<4M4> Voltage between terminal 1 and earth OK:System voltage DCheck the harness between the solenoid valve assembly and the engine-A/T-ECU, and repair if necessary. <6G7> DCheck the harness between the solenoid valve assembly and the A/T-ECU, and repair if necessary.<4M4> DCheck the harness between the solenoid valve assembly and the A/T control relay, and repair if necessary.NG Repair www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-28 Code No. 33 2nd solenoid valve systemProbable cause If the drive terminal voltage of the 2nd solenoid valve is 3.0 V or less, it is judged that there is ashort-circuit oropencircuit in the 2nd solenoid valve, and the corresponding code is output. The transmission will be fixed in 3rd as a fail-safe measure, and the N range indicator will flash at a rate of 1 Hz.DMalfunction of 2nd solenoid valve DMalfunction of harness or connector DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> LRefer to the Transmission Workshop Manual. NO YES OK MUT- IISelf-Diag Code DIs code No. 54 output?Code No. 54 - A/T control relay system check (Refer to P.23-103.) OK NG Transient malfunction (Refer to GROUP 00 - Points to Note for Transient Malfunctions.)MUT- IIActuator Test DNo. 3 2nd solenoid valve OK:Sound of operation can be heard OK Check the following connectors:<6G7> D-122,<4M4>D-107 OK NG NG Replace the engine-A/T-ECU or A/T-ECU. Repair OK Check the trouble symptoms. OK NG Check the following connectors:E-113, D-12 NG Repair Check the harness between the solenoid valve assembly and the A/T control relay, and repair if necessary. Check the following connectors:<6G7> D-122, E-113, D-12, <4M4> D-107, E-113,D-12NG NG RepairCheck the following connector:C-04 Replace the 2nd solenoid valve. L OK Measure at solenoid valve assembly connector C-04. DDisconnect the connector and measure at the solenoid valve side. DResistance between terminals 4 and 9 OK:2.7 - 3.4 W OK Measure at engine-A/T-ECU connector D-122 <6G7>, or at A/T-ECU connector D-107 <4M4>. DMeasure at the ECU terminals DIgnition switch: ON D<6G7> Voltage between terminal 106 and earth D<4M4> Voltage between terminal 16 and earth OK:System voltage DCheck the harness between the solenoid valve assembly and the engine-A/T-ECU, and repair if necessary. <6G7> DCheck the harness between the solenoid valve assembly and the A/T-ECU, and repair if necessary.<4M4> DCheck the harness between the solenoid valve assembly and the A/T control relay, and repair if necessary.RepairNG NG Measure at solenoid valve assembly connector C-04. DDisconnect the connector and measure at the harness side. DIgnition switch: ON DVoltage between terminals 9 and earth OK:System voltage www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
AUTOMATIC TRANSMISSION -Troubleshooting 23-29 Code No. 34 OD solenoid valve systemProbable cause If the drive terminal voltage of the OD solenoid valve is 3.0 V or less, it is judged that there is ashort-circuit oropencircuit in the OD solenoid valve, and the corresponding code is output. The transmission will be fixed in 3rd as a fail-safe measure, and the N range indicator will flash at a rate of 1 Hz.DMalfunction of OD solenoid valve DMalfunction of harness or connector DMalfunction of engine-A/T-ECU <6G7> DMalfunction of A/T-ECU<4M4> LRefer to the Transmission Workshop Manual. NO YES OK MUT- IISelf-Diag Code DIs code No. 54 output?Code No. 54 - A/T control relay system check (Refer to P.23-103.) OK NG Transient malfunction (Refer to GROUP 00 - Points to Note for Transient Malfunctions.)MUT- IIActuator Test DNo.4 OD solenoid valve OK:Sound of operation can be heard OK Check the following connectors:<6G7> D-122,<4M4>D-107 OK NG NG Replace the engine-A/T-ECU or A/T-ECU. Repair OK NG Check the trouble symptoms. OK NG Check the following connectors:E-113, D-12 NG Repair Check the harness between the solenoid valve assembly and the A/T control relay, and repair if necessary. Check the following connectors:<6G7> D-122, E-113, D-12, <4M4> D-107, E-113,D-12NG NG RepairCheck the following connector:C-04 Replace the OD solenoid valve. L OK Measure at solenoid valve assembly connector C-04. DDisconnect the connector and measure at the solenoid valve side. DResistance between terminals 5 and 9 OK:2.7 - 3.4 W OK Measure at engine-A/T-ECU connector D-122 <6G7>, or at A/T-ECU connector D-107 <4M4>. DMeasure at the ECU terminals DIgnition switch: ON D<6G7> Voltage between terminal 130 and earth D<4M4> Voltage between terminal 14 and earth OK:System voltage DCheck the harness between the solenoid valve assembly and the engine-A/T-ECU, and repair if necessary. <6G7> DCheck the harness between the solenoid valve assembly and the A/T-ECU, and repair if necessary.<4M4> DCheck the harness between the solenoid valve assembly and the A/T control relay, and repair if necessary.RepairNG Measure at solenoid valve assembly connector C-04. DDisconnect the connector and measure at the harness side. DIgnition switch: ON DVoltage between terminals 9 and earth OK:System voltage www.WorkshopManuals.co.uk Purchased from www.WorkshopManuals.co.uk
