Automatic Transaxle (Diagnostics): Diagnosis Subaru BRZ ZC

List Of Diagnostic Codes

Symptom Table

How To Troubleshoot

1. Bring in the car Next
2. Interview and phenomenon check (Refer to «CHECK LIST FOR INTERVIEW»(ref-619150-S20789178552014053000000) ) Next
3. Battery voltage check Check the battery voltage. Voltage: 11 to 14 V NG: Battery charge or replacement OK: Go to Next Step
4. CAN communication system communication function check NOTE: Refer to «HOW TO TROUBLESHOOT»(ref-619155-S21491093182014053000000) Check CAN communication system. RESULT Result Go to Functioning properly A Not functioning properly B B: Refer To «CAN COMMUNICATION SYSTEM»(ref-619155-S27781947022014053000000) A: Go to Next Step
5. DTC check NOTE: Refer to «CHECKING/CLEARING DIAGNOSTIC CODES»(ref-619150-S03396316552014053000000) Check diagnostic codes and freeze frame data. Record diagnostic codes and freeze frame data. Clear diagnostic codes and freeze frame data. Recheck DTC. Reproduce the trouble phenomenon based on the recorded diagnostic codes and freeze frame data and check that the diagnostic codes are output again. RESULT Result Go to The diagnostic codes are normal and the trouble phenomenon can be checked and reproduced. A Abnormality codes are output. B The diagnostic codes are normal and the trouble phenomenon cannot be checked and reproduced. C B: Refer to «LIST OF DIAGNOSTIC CODES»(ref-619150-S00681233852014053000000) to troubleshoot each code and jump to step 9 . C: To trouble simulation IN-32. A: Go to Next Step
6. Symptom table (refer to «SYMPTOM TABLE»(ref-619150-S41451547652014053000000) ) RESULT Result Go to Not applicable to the symptom table. A Applicable to the symptom table. B B: Perform troubleshooting for relevant symptom and go to step 8 . A: Go to Next Step
7. Troubleshooting by the following methods based on trouble phenomenon Current Data Display & Save (refer to «CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE»(ref-619150-S18950216122014053000000) ) System Operation Check Mode (refer to «CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE»(ref-619150-S18950216122014053000000) ) Manual driving test (refer to «FUNCTION INSPECTION»(ref-619150-S37738258102014053000000) ) ECM terminal arrangement (refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) ). Next
8. Adjustment, repair, or replacement Next
9. Confirmation test Next: Complete

Scheme 2

Checking/Clearing Diagnostic Codes

1. DTC check (read by SSM3) Use SSM3 to display the [Transmission Control System] screen according to the screen display and select [Diagnostic Code(s) Display]. Check the diagnostic codes.
2. Freeze frame data Use SSM3 to select [Freeze Frame Data Display] on the [Transmission Control System] screen according to the screen display. NOTE: The transmission condition (TCM data) when a diagnostic code is detected and 2 seconds before a diagnostic code is detected can be checked at intervals of 0.5 seconds. (Refer to «TROUBLESHOOTING PROCEDURES FOR ECM CONTROL SYSTEM»(ref-619149-S12540931392014053000000) ) Check the consistency of the interviewed trouble phenomenon and the list of diagnostic codes. After repair, perform a confirmation test by referring to the driving condition checked above.
3. Diagnostic codes memory clear (cleared by SSM3) Use SSM3 to display the [Transmission Control System] screen according to the screen display and select [Clear Memory]. Select [Yes] displayed on the screen to clear the data. CAUTION: Diagnostic codes and freeze frame data are cleared at the same time.

Circuit description

When IGN signal, P switch signal, and STP signal is input, the main body ECM (network gateway computer) outputs signals to the shift lock solenoid.

Scheme 3

Inspection steps

1. Check of shift lock solenoid unit Check the shift lock solenoid unit. (Refer to «UNIT INSPECTION»(ref-619159-S40205187112014053000000) ) NG: Replacement of shift lock solenoid (refer to «REMOVAL»(ref-619159-S26613761902014053000000) ) OK: Go to Next Step
2. Check wiring harness and connector (main body ECM (network gateway computer) - shift lock solenoid) NOTE: Refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) for checking procedure and precautions Disconnect the connector D5 of the main body ECM (network gateway computer). Disconnect the connector D28 of shift lock solenoid. Measure the resistance between the terminals. SPECIFIED RESISTANCE (DISCONNECTION CHECK) Inspection terminals Inspection conditions Standard value D5-20 - D28-4 Always Less than 1 ohms SPECIFIED RESISTANCE (SHORT CHECK) Inspection terminals Inspection conditions Standard value D5-20 and D28-4 - chassis ground Always 10 k ohmsor more Connect the connector D5 of the main body ECM (network gateway computer). Connect the connector D28 of the shift lock solenoid. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Check wiring harness and connector (shift lock solenoid-chassis ground) NOTE: Refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) for checking procedure and precautions Disconnect the connector D28 of shift lock solenoid. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value D28-5 - chassis ground Always Less than 1 ohms Connect the connector D28 of the shift lock solenoid. NG: Repair or replacement of wiring harness or connector OK: Replacement of main body ECM (network gateway computer) (refer to «REMOVAL»(ref-619154-S18264387212014053000000) )

The value calculated by the transmission control computer is compared with the data stored in the transmission control computer ASSY when IG is ON, and when they do not match 2 times consecutively, DTC is detected and the learning is prohibited. If the problem persists, cut continuity to all the solenoid (lock at 4th gear).

Note. Read the freeze frame data using the SSM3. A part of the engine running conditions under which the engine trouble occurred is recorded in the freeze frame data, which is useful for troubleshooting.

1. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )

The transmission control computer calculates the integration value in the transmission control computer ASSY when IG OFF turns to ON, and when the value does not match the value stored in the transmission control computer, DTC is output. However, calculation is not performed when switching by consecutive operation of the ignition switch is executed.

1. Replacement of transmission control computer ASSY Replace the transmission control computer. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction

Shift position is detected by inputting the signal from the neutral start switch ASSY to the transmission control computer ASSY. Engine can start only when the select lever is in P or N position.

1. Perform a unit inspection of neutral start switch ASSY Disconnect the connector A19 of the transmission control computer ASSY. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value A19-3 (P) - L2-2 (RB) Select lever in P position Less than 1 ohms A19-10 (R) - L2-2 (RB) Select lever in R position Less than 1 ohms A19-21 (N) - L2-2 (RB) Select lever in N position Less than 1 ohms A19-9 (D) - L2-2 (RB) Select lever in D position Less than 1 ohms A19-3 (P) - L2-2 (RB) Select lever in any other than P position 10 k ohmsor more A19-10 (R) - L2-2 (RB) Select lever in any other than R position 10 k ohmsor more A19-21 (N) - L2-2 (RB) Select lever in any other than N position 10 k ohmsor more A19-9 (D) - L2-2 (RB) Select lever in any other than D position 10 k ohmsor more Connect the connector A19 of the transmission control computer ASSY. NG: Step 4 OK: Go to Next Step
2. Check of neutral start switch ASSY (power supply voltage) Disconnect the connector L2 of the neutral start switch ASSY. Turn the ignition switch to ON. Measure the voltage between the terminals. VOLTAGE Inspection terminals Inspection conditions Standard value L2-2 (RB) - chassis ground IG ON 11 to 14 V Connect the connector L2 of the neutral start switch ASSY. NG: Repair or replacement of wiring harness or connector (power supply system) OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
4. Check wiring harness and connector (neutral start switch ASSY - transmission control computer) NOTE: Refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) for checking procedure and precautions of wiring harness and connector Disconnect the connector A19 of the transmission control computer ASSY. Disconnect the connector L2 of the neutral start switch ASSY. Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) RESISTANCE Terminal No. (terminal symbol) Inspection conditions Standard value A19-3 (P) - L2-6 (PL) Always Less than 1 ohms A19-10 (R) - L2-1 (RL) Always Less than 1 ohms A19-21 (N) - L2-9 (NL) Always Less than 1 ohms A19-9 (D) - L2-7 (DL) Always Less than 1 ohms A19-3 (P) - chassis ground Always 10 k ohmsor more A19-10 (R) - chassis ground Always 10 k ohmsor more A19-21 (N) - chassis ground Always 10 k ohmsor more A19-9 (D) - chassis ground Always 10 k ohmsor more Measure the voltage between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) VOLTAGE Terminal No. (terminal symbol) Inspection conditions Standard value A19-3 (P) - chassis ground IG ON 1 V or less A19-10 (R) - chassis ground IG ON 1 V or less A19-21 (N) - chassis ground IG ON 1 V or less A19-9 (D) - chassis ground IG ON 1 V or less Connect the connector A19 of the transmission control computer ASSY. Connect the connector L2 of the neutral start switch ASSY. NG: Repair or replacement of wiring harness or connector OK: Replacement of neutral start switch ASSY (refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) )

The oil temperature sensor installed in the valve body detects the oil temperature in the transmission hydraulic control circuit and inputs signals corresponding to the oil temperature to the transmission control computer ASSY.

Scheme 4

Note. Read the freeze frame data using the SSM3. A part of the engine running conditions under which the engine trouble occurred is recorded in the freeze frame data, which is useful for troubleshooting.

1. Read the diagnostic code Follow the SSM3 on-screen instructions to check the diagnostic codes. (Refer to «CHECKING/CLEARING DIAGNOSTIC CODES»(ref-619150-S03396316552014053000000) ) RESULT Result Go to Only P0711 is output. A P0711 and other diagnostic codes are output. B B: Related diagnostic code chart A: Go to Next Step
2. Transmission fluid level check Check the amount of automatic transmission fluid. Criteria: The amount of automatic transmission fluid is correct. NG: Fluid replenishment OK: Go to Next Step
3. Reading of SSM3 data (ATF oil temperature) Disconnect the connector L4 of the transmission wire. Use SSM3 to display the [Current Data Display & Save] screen according to the screen display and check the ATF oil temperature. RESULT Result Go to ATF temperature is other than -40°C. A ATF temperature is -40°C. B Connect the connector L4 of the transmission wire. B: Repair or replacement of transmission wire (refer to «REMOVAL»(ref-619159-S32164859162014053000000) ) A: Go to Next Step
4. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )

The oil temperature sensor installed in the valve body detects the oil temperature in the transmission hydraulic control circuit and inputs signals corresponding to the oil temperature to the transmission control computer ASSY.

Note. The data monitor (AT oil temperature) indicates -40°C when P0712 is output. The data monitor (AT oil temperature) indicates 171°C when P0713 is output.

Note. Read the freeze frame data using the SSM3. A part of the engine running conditions under which the engine trouble occurred is recorded in the freeze frame data, which is useful for troubleshooting.

1. Transmission wire unit check (oil temperature sensor) Disconnect the connector A18 of the transmission control computer ASSY. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value A18-22 (OIL) - A18-23 (EOIL) Always 79 to 156 kohms Connect the connector A18 of the transmission control computer ASSY. NG: Step 3 OK: Go to Next Step
2. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
3. Check wiring harness and connector (transmission wire - transmission control computer ASSY) NOTE: Refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) for checking procedure and precautions of wiring harness and connector Disconnect the connector L4 of the transmission wire. Disconnect the connector A18 of the transmission control computer ASSY. Measure the voltage between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) VOLTAGE Inspection terminals Inspection conditions Standard value L4-8 (EOIL) - chassis ground IG ON 1 V or less L4-15 (OIL) - chassis ground IG ON 1 V or less Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) RESISTANCE Inspection terminals Inspection conditions Standard value A18-22 (OIL) - L4-15 Always 1 ohmsor less A18-23 (EOIL) - L4-8 Always 1 ohmsor less L4-8 (EOIL) - chassis ground Always 10 k ohmsor more L4-15 (OIL) - chassis ground Always 10 k ohmsor more Connect the connector L4 of the transmission wire. Connect the connector A18 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector OK: Repair or replacement of transmission wire (refer to «TRANSMISSION WIRE»(ref-619159-S13473443452014053000000) )

The transmission revolution sensor (NT) inputs the input shaft revolution speed to the transmission control computer ASSY as a signal.

The transmission control computer ASSY performs shift timing control based on signals from transmission revolution sensor (NT) and transmission revolution sensor (SP2).

Note. Read the freeze frame data using the SSM3. A part of the engine running conditions under which the engine trouble occurred is recorded in the freeze frame data, which is useful for troubleshooting.

Scheme 5

1. Check of transmission revolution sensor (NT) installation condition Check the installation condition of the transmission revolution sensor (NT). Criteria: The mounting bolt is not loosened and the sensor is not lifted or tilted. NG: Repair of installation condition or replacement of transmission revolution sensor (NT) (refer to «REMOVAL»(ref-619159-S34935140422014053000000) ) OK: Go to Next Step
2. Check of transmission revolution sensor (NT) unit Disconnect the connector L5 of the transmission revolution sensor (NT). Check the transmission revolution sensor (NT) unit. (Refer to «INSTALLATION»(ref-619159-S34951705422014053000000) ) Connect the connector L5 of the transmission revolution sensor (NT). NG: Replacement of transmission revolution sensor (NT) (refer to «REMOVAL»(ref-619159-S34935140422014053000000) ) OK: Go to Next Step
3. Check wiring harness and connector (transmission control computer - transmission revolution sensor) NOTE: Refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) for checking procedure and precautions of wiring harness and connector Disconnect the connector A19 of the transmission control computer ASSY. Disconnect the connector L5 of the transmission revolution sensor (NT). Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) RESISTANCE Inspection terminals Inspection conditions Standard value L5-1 (NT+) - A19-17 (NT+) Always Less than 1 ohms L5-2 (NT-) - A19-28 (NT-) Always Less than 1 ohms L5-1 (NT+) - chassis ground Always 10 k ohmsor more L5-2 (NT-) - chassis ground Always 10 k ohmsor more Connect the connector A19 of the transmission control computer ASSY. Connect the connector L5 of the transmission revolution sensor (NT). NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
4. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )

The transmission revolution sensor (SP2) inputs the output shaft revolution speed to the transmission control computer ASSY as a signal.

The transmission control computer ASSY performs shift timing control based on transmission revolution sensor (SP2) signal and transmission revolution sensor (NT) signal.

Note. Read the freeze frame data using the SSM3. A part of the engine running conditions under which the engine trouble occurred is recorded in the freeze frame data, which is useful for troubleshooting.

Scheme 6

1. Check of transmission revolution sensor (SP2) installation condition Check the installation condition of the transmission revolution sensor (SP2). Criteria: The mounting bolt is not loosened and the sensor is not lifted or tilted. NG: Repair of installation condition or replacement of transmission revolution sensor (SP2) (refer to «REMOVAL»(ref-619159-S34935140422014053000000) ) OK: Go to Next Step
2. Check of transmission revolution sensor (SP2) unit Disconnect the connector L3 of the transmission revolution sensor (SP2). Check the transmission revolution sensor (SP2) unit. (Refer to «INSTALLATION»(ref-619159-S34951705422014053000000) ) Connect the connector L3 of the transmission revolution sensor (SP2). NG: Replacement (SP2)of transmission revolution sensor (SP2) (refer to «REMOVAL»(ref-619159-S34935140422014053000000) ) OK: Go to Next Step
3. Check wiring harness and connector (transmission control computer ASSY - transmission revolution sensor (SP2)) NOTE: Refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) for checking procedure and precautions of wiring harness and connector Disconnect the connector A19 of the transmission control computer ASSY. Disconnect the connector L3 of the transmission revolution sensor (SP2). Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) RESISTANCE Inspection terminals Inspection conditions Standard value A19-18 (SP2+) - L3-1 (SP2+) Always Less than 1 ohms A19-7 (SP2-) - L3-2 (SP2-) Always Less than 1 ohms A19-18 (SP2+) - chassis ground Always 10 k ohmsor more A19-7 (SP2-) - chassis ground Always 10 k ohmsor more Connect the connector L3 of the transmission revolution sensor (SP2). Connect the connector A19 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector (transmission control computer ASSY - transmission revolution sensor) OK: Go to Next Step
4. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )

The transmission control computer ASSY detects the gear position based on signals from the transmission revolution sensor (NT) and the transmission revolution sensor (SP2). Then, the transmission control computer ASSY detects mechanical problems of related solenoid valve, valve body, or automatic transmission when the detected gear position differs from the commanded position.

Shift to 6th gear is prohibited as fail safe.

The transmission control computer ASSY detects the gear position based on signals from the transmission revolution sensor (NT) and the transmission revolution sensor (SP2). Then, the transmission control computer ASSY detects mechanical problems of related solenoid valve, valve body, or automatic transmission when the detected gear position differs from the commanded position.

GEAR POSITION WHEN TRANSMISSION 3 WAY SOLENOID ASSY (S1) IS STUCK OFF (SELECT LEVER IN M POSITION)

GEAR POSITION WHEN TRANSMISSION 3 WAY SOLENOID ASSY (S1) IS STUCK ON (SELECT LEVER IN M POSITION)

Scheme 7

1. Read the diagnostic code Follow the SSM3 on-screen instructions to check the diagnostic codes. (Refer to «CHECKING/CLEARING DIAGNOSTIC CODES»(ref-619150-S03396316552014053000000) ) RESULT Result Go to P0751 and P2714, or P0752 and P0767 are output. A P0751 and P2714, or P0752, P0767, and other diagnostic codes are output. B B: Related DTC chart (refer to «LIST OF DIAGNOSTIC CODES»(ref-619150-S00681233852014053000000) ) A: Go to Next Step
2. Line pressure check CAUTION: Wash the equipment and hoses with appropriate detergent before and after measurement. Always perform the inspection after the engine check and adjustment. Perform the inspection at an oil temperature (60 to 90°C) in normal driving condition. Perform the inspection with the A/C OFF. Do not perform the inspection continuously for 5 seconds or more at stall. (Time from the accelerator full close to full open, stall speed reading and the accelerator full close) After performing the stall test, be sure to cool down the engine for at least 1 minute with the select lever set in P or N position, and at an idle speed of 1200 rpm or less. If the stall speed is higher than the specified range, finish the stall test in as short a time as possible, in order to prevent the automatic transmission from being damaged. Perform the stall test in normal mode. Remove the under cover No. 1. Remove the under cover No. 2. Remove the exhaust pipe ASSY FR. Attach the SST on the transmission. SST 18681AA040, 498897700, 498575400 CAUTION: Use 18681AA040 with genuine O-ring (17006AA000) attached. Route the hose so that it does not contact the exhaust pipe. Install the center exhaust pipe. Firmly apply the parking brake and set the wheel stoppers. Remove the test plug, install the gauge and start the engine. Firmly depress the brake pedal with left foot and shift to D or R position, then check the hydraulic pressure at idling and stalling. STANDARD VALUE Shift position While idling [MPa {kgf/cm 2 }] While stalling [MPa {kgf/cm 2 }] D position 0.35 to 0.43 {3.6 to 4.4} 1.20 to 1.38 {12.2 to 14.0} R position 0.76 to 0.95 {7.7 to 9.7} 1.41 to 1.63 {14.4 to 16.6} NOTE: When there is an open or short circuit in the line pressure control solenoid ASSY (SLT) system, the line pressure reaches the maximum. NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Go to Next Step
3. Check of transmission 3 way solenoid ASSY (S1) unit Remove the transmission 3 way solenoid ASSY (S1). (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) Check the transmission 3 way solenoid ASSY (S1) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Go to Next Step
4. Check of transmission valve body ASSY unit Check the transmission valve body ASSY. (Refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) Criteria: There is no malfunction and foreign objects on the solenoid installation portions. NG: Replacement of the transmission 3 way solenoid ASSY (S1) (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) OK: Repair or replacement of automatic transmission ASSY (refer to «REMOVAL»(ref-619159-S07969847722014053000000) )

The transmission control computer ASSY detects the gear position based on signals from the transmission revolution sensor (NT) and the transmission revolution sensor (SP2). Then, the transmission control computer ASSY detects mechanical problems of related solenoid valve, valve body, or automatic transmission when the detected gear position differs from the commanded position.

GEAR POSITION WHEN TRANSMISSION 3 WAY SOLENOID ASSY (S2) IS STUCK OFF (SELECT LEVER IN M POSITION)

GEAR POSITION WHEN TRANSMISSION 3 WAY SOLENOID ASSY (S2) IS STUCK ON (SELECT LEVER IN M POSITION)

Scheme 8

1. Read the diagnostic code Follow the SSM3 on-screen instructions to check the diagnostic codes. (Refer to «CHECKING/CLEARING DIAGNOSTIC CODES»(ref-619150-S03396316552014053000000) ) RESULT Result Go to P0756 and P2714, or P0757 is output. A P0756 and P2714, or P0757 and other diagnostic codes are output. B B: Related diagnostic code chart A: Go to Next Step
2. Line pressure check CAUTION: Wash the equipment and hoses with appropriate detergent before and after measurement. Always perform the inspection after the engine check and adjustment. Perform the inspection at an oil temperature (60 to 90°C) in normal driving condition. Perform the inspection with the A/C OFF. Do not perform the inspection continuously for 5 seconds or more at stall. (Time from the accelerator full close to full open, stall speed reading and the accelerator full close) After performing the stall test, be sure to cool down the engine for at least 1 minute with the select lever set in P or N position, and at an idle speed of 1200 rpm or less. If the stall speed is higher than the specified range, finish the stall test in as short a time as possible, in order to prevent the automatic transmission from being damaged. Perform the stall test in normal mode. Remove the under cover No. 1. Remove the under cover No. 2. Remove the exhaust pipe ASSY FR. Attach the SST on the transmission. SST 18681AA040, 498897700, 498575400 CAUTION: Use 18681AA040 with genuine O-ring (17006AA000) attached. Route the hose so that it does not contact the exhaust pipe. Install the center exhaust pipe. Firmly apply the parking brake and set the wheel stoppers. Remove the test plug, install the gauge and start the engine. Firmly depress the brake pedal with left foot and shift to D or R position, then check the hydraulic pressure at idling and stalling. STANDARD VALUE Shift position While idling [MPa {kgf/cm 2 }] While stalling [MPa {kgf/cm 2 }] D position 0.35 to 0.43 {3.6 to 4.4} 1.20 to 1.38 {12.2 to 14.0} R position 0.76 to 0.95 {7.7 to 9.7} 1.41 to 1.63 {14.4 to 16.6} NOTE: When there is an open or short circuit in the line pressure control solenoid ASSY (SLT) system, the line pressure reaches the maximum. NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Go to Next Step
3. Check of transmission 3 way solenoid ASSY (S2) unit Remove the transmission 3 way solenoid ASSY (S2). (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) Check the transmission 3 way solenoid ASSY (S2) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Replacement of the transmission 3 way solenoid ASSY (S2) (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) OK: Go to Next Step
4. Check of transmission valve body ASSY unit Check the transmission valve body ASSY. (Refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) Criteria: There is no malfunction and foreign objects on the solenoid installation portions. NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Repair or replacement of automatic transmission ASSY (refer to «REMOVAL»(ref-619159-S07969847722014053000000) )

The transmission control computer ASSY detects the gear position based on signals from the transmission revolution sensor (NT) and the transmission revolution sensor (SP2). Then, the transmission control computer ASSY detects mechanical problems of related solenoid valve, valve body, or automatic transmission when the detected gear position differs from the commanded position.

GEAR POSITION WHEN TRANSMISSION 3 WAY SOLENOID ASSY (S3) IS STUCK OFF (SELECT LEVER IN M POSITION)

Gear position when the transmission 3 way solenoid ASSY (S3) is stuck ON (Select lever in M position)

GEAR POSITION WHEN 1-2 SHIFT VALVE SPRING IS COMPRESSED (SELECT LEVER IN M POSITION)

Scheme 9

1. Read the diagnostic code Follow the SSM3 on-screen instructions to check the diagnostic codes. (Refer to «CHECKING/CLEARING DIAGNOSTIC CODES»(ref-619150-S03396316552014053000000) ) RESULT Result Go to Only P0761 is output, or only P0762, P0781, and P2714 are output. A Only P0761 is output, or P0762, P0781, P2714 and other diagnostic codes are output. B B: Related diagnostic code chart A: Go to Next Step
2. Line pressure check CAUTION: Wash the equipment and hoses with appropriate detergent before and after measurement. Always perform the inspection after the engine check and adjustment. Perform the inspection at an oil temperature (60 to 90°C) in normal driving condition. Perform the inspection with the A/C OFF. Do not perform the inspection continuously for 5 seconds or more at stall. (Time from the accelerator full close to full open, stall speed reading and the accelerator full close) After performing the stall test, be sure to cool down the engine for at least 1 minute with the select lever set in P or N position, and at an idle speed of 1200 rpm or less. If the stall speed is higher than the specified range, finish the stall test in as short a time as possible, in order to prevent the automatic transmission from being damaged. Perform the stall test in normal mode. Remove the under cover No. 1. Remove the under cover No. 2. Remove the exhaust pipe ASSY FR. Attach the SST on the transmission. SST 18681AA040, 498897700, 498575400 CAUTION: Use 18681AA040 with genuine O-ring (17006AA000) attached. Route the hose so that it does not contact the exhaust pipe. Install the center exhaust pipe. Firmly apply the parking brake and set the wheel stoppers. Remove the test plug, install the gauge and start the engine. Firmly depress the brake pedal with left foot and shift to D or R position, then check the hydraulic pressure at idling and stalling. STANDARD VALUE Shift position While idling [MPa {kgf/cm 2 }] While stalling [MPa {kgf/cm 2 }] D position 0.35 to 0.43 {3.6 to 4.4} 1.20 to 1.38 {12.2 to 14.0} R position 0.76 to 0.95 {7.7 to 9.7} 1.41 to 1.63 {14.4 to 16.6} NOTE: When there is an open or short circuit in the line pressure control solenoid ASSY (SLT) system, the line pressure reaches the maximum. NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Go to Next Step
3. Check of transmission 3 way solenoid ASSY (S3) unit Remove the transmission 3 way solenoid ASSY (S3). (Refer to «ASSEMBLY»(ref-619159-S34056789642014053000000) ) Check the transmission 3 way solenoid ASSY (S3) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Replacement of the transmission 3 way solenoid ASSY (S3) (Refer to «ASSEMBLY»(ref-619159-S34056789642014053000000) ) OK: Go to Next Step
4. Check of transmission valve body ASSY unit Check the transmission valve body ASSY. (Refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) Criteria: There is no malfunction and foreign objects on the solenoid installation portions. NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Repair or replacement of automatic transmission ASSY (refer to «REMOVAL»(ref-619159-S07969847722014053000000) )

The transmission control computer ASSY detects the gear position based on signals from the transmission revolution sensor (NT) and the transmission revolution sensor (SP2). Then, the transmission control computer ASSY detects mechanical problems of related solenoid valve, valve body, or automatic transmission when the detected gear position differs from the commanded position.

GEAR POSITION WHEN TRANSMISSION 3 WAY SOLENOID ASSY (S4) IS STUCK OFF OR CLUTCH CONTROL SOLENOID NO. 1 (SL2) FUNCTION IS FAULTY. (SELECT LEVER IN M POSITION)

GEAR POSITION WHEN TRANSMISSION 3 WAY SOLENOID ASSY (S4) IS STUCK ON (SELECT LEVER IN M POSITION)

Scheme 10

1. Read the diagnostic code Follow the SSM3 on-screen instructions to check the diagnostic codes. (Refer to «CHECKING/CLEARING DIAGNOSTIC CODES»(ref-619150-S03396316552014053000000) ) RESULT Result Go to P0766, P0776, and P2714, or only P0752 and P0767 are output. A P0766, P0776, and P2714, or P0752, P0767, and other diagnostic codes are output. B B: Related diagnostic code chart A: Go to Next Step
2. Line pressure check CAUTION: Wash the equipment and hoses with appropriate detergent before and after measurement. Always perform the inspection after the engine check and adjustment. Perform the inspection at an oil temperature (60 to 90°C) in normal driving condition. Perform the inspection with the A/C OFF. Do not perform the inspection continuously for 5 seconds or more at stall. (Time from the accelerator full close to full open, stall speed reading and the accelerator full close) After performing the stall test, be sure to cool down the engine for at least 1 minute with the select lever set in P or N position, and at an idle speed of 1200 rpm or less. If the stall speed is higher than the specified range, finish the stall test in as short a time as possible, in order to prevent the automatic transmission from being damaged. Perform the stall test in normal mode. Remove the under cover No. 1. Remove the under cover No. 2. Remove the exhaust pipe ASSY FR. Attach the SST on the transmission. SST 18681AA040, 498897700, 498575400 CAUTION: Use 18681AA040 with genuine O-ring (17006AA000) attached. Route the hose so that it does not contact the exhaust pipe. Install the center exhaust pipe. Firmly apply the parking brake and set the wheel stoppers. Remove the test plug, install the gauge and start the engine. Firmly depress the brake pedal with left foot and shift to D or R position, then check the hydraulic pressure at idling and stalling. STANDARD VALUE Shift position While idling [MPa {kgf/cm 2 }] While stalling [MPa {kgf/cm 2 }] D position 0.35 to 0.43 {3.6 to 4.4} 1.20 to 1.38 {12.2 to 14.0} R position 0.76 to 0.95 {7.7 to 9.7} 1.41 to 1.63 {14.4 to 16.6} NOTE: When there is an open or short circuit in the line pressure control solenoid ASSY (SLT) system, the line pressure reaches the maximum. NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Go to Next Step
3. Check of transmission 3 way solenoid ASSY (S4) system unit Remove the transmission 3 way solenoid ASSY (S4). (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) Check the transmission 3 way solenoid ASSY (S4) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Replacement of the transmission 3 way solenoid ASSY (S4) (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) OK: Go to Next Step
4. Check of clutch control solenoid No. 1 (SL2) unit Check the clutch control solenoid No. 1 (SL2) unit. (Refer to «UNIT INSPECTION»(ref-619159-S15918961802014053000000) ) NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Go to Next Step
5. Check of transmission valve body ASSY unit Check the transmission valve body ASSY. (Refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) Criteria: There is no malfunction and foreign objects on the solenoid installation portions. NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Repair or replacement of automatic transmission ASSY (refer to «REMOVAL»(ref-619159-S07969847722014053000000) )

The transmission control computer ASSY detects power supply voltage drop and performs the following fail safe items according to the circumstances.

1. Prohibiting learning control (when detecting condition (1) or (2) is established)
2. Slippage control, lock-up control, manual mode, prohibiting paddle operation, prohibiting torque up, and prohibiting shift to 5th and 6th gear.

If the problem persists, cut continuity to all the solenoid (lock at 4th gear).

Scheme 11

1. Check of battery unit Check the battery unit. NG: Replacement of battery OK: Go to Next Step
2. Check of transmission control computer ASSY (IG power supply voltage) Disconnect the connector A18 of the transmission control computer ASSY. Measure the voltage between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) VOLTAGE Inspection terminals Inspection conditions Standard value A18-34 (IG1) - chassis ground IG ON 11 to 14 V A18-35 (IG2) - chassis ground IG ON 11 to 14 V Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) RESISTANCE Inspection terminals Inspection conditions Standard value A18-3 (E02) - chassis ground Always Less than 1 ohms A18-33 (E01) - chassis ground Always Less than 1 ohms Connect the connector A18 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector (power supply system) OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )

Signals from the transmission control computer ASSY change the vehicle speed from 1st to 6th gear according to the combination of the transmission 3 way solenoid ASSY (S1, S2, S3, S4, SR) and the clutch control solenoid No. 1 (SL1, SL2). When there is an open or short circuit in the solenoid valve system, the transmission control computer ASSY stops continuity to all solenoids as the fail safe function. As a result, only the mechanical hydraulic circuit is available and the manual shift control is initiated.

ON/OFF STATUS WHEN CLUTCH CONTROL SOLENOID NO. 1 (SL1) IS NORMAL (SELECT LEVER IN D POSITION)

1. Check of transmission wire unit (clutch control solenoid No. 1 (SL1)) Disconnect the connector L4 of the transmission wire. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value L4-13 (SL1+) - L4-6 (SL1-) 20°C 5.0 to 5.6 ohms L4-13 (SL1+) - chassis ground Always 10 k ohmsor more L4-6 (SL1-) - chassis ground Always 10 k ohmsor more Connect the connector L4 of the transmission wire. NG: Step 4 OK: Go to Next Step
2. Check wiring harness and connector (transmission wire - transmission control computer ASSY) Disconnect the connector A18 of the transmission control computer ASSY. Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement) RESISTANCE Inspection terminals Inspection conditions Standard value A18-16 (SL1+) - A18-12 (SL1-) 20°C 5.0 to 5.6 ohms A18-16 (SL1+) - chassis ground Always 10 k ohmsor more A18-12 (SL1-) - chassis ground Always 10 k ohmsor more Connect the connector A18 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness and connector OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
4. Check of clutch control solenoid No. 1(SL1) unit Check the clutch control solenoid No. 1 (SL1) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Repair or replacement of transmission wire (refer to «TRANSMISSION WIRE»(ref-619159-S13473443452014053000000) )

Signals from the transmission control computer ASSY change the vehicle speed from 1st to 6th gear according to the combination of the transmission 3 way solenoid ASSY (S1, S2, S3, S4, SR) and the clutch control solenoid No. 1 (SL1, SL2). When there is an open or short circuit in the solenoid valve system, the transmission control computer ASSY stops continuity to all solenoids as the fail safe function. As a result, only the mechanical hydraulic circuit is available and the manual shift control is initiated.

ON/OFF STATUS WHEN CLUTCH CONTROL SOLENOID NO. 1 (SL2) IS NORMAL (SELECT LEVER IN D POSITION)

1. Check of transmission wire unit (clutch control solenoid No. 1 (SL2)) Disconnect the connector L4 of the transmission wire. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value L4-14 (SL2+) - L4-7 (SL2-) 20°C 5.0 to 5.6 ohms L4-14 (SL2+) - chassis ground Always 10 k ohmsor more L4-7 (SL2-) - chassis ground Always 10 k ohmsor more Connect the connector L4 of the transmission wire. NG: Step 4 OK: Go to Next Step
2. Check wiring harness and connector (transmission wire - transmission control computer ASSY) Disconnect the connector A18 of the transmission control computer ASSY. Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement) RESISTANCE Inspection terminals Inspection conditions Standard value A18-5 (SL2+) - A18-11 (SL2-) 20°C 5.0 to 5.6 ohms A18-5 (SL2+) - chassis ground Always 10 k ohmsor more A18-11 (SL2-) - chassis ground Always 10 k ohmsor more Connect the connector A18 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
4. Check of clutch control solenoid No. 1 (SL2) unit Check the clutch control solenoid No. 1 (SL2) unit. (Refer to «UNIT INSPECTION»(ref-619159-S15918961802014053000000) ) NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Repair or replacement of transmission wire (refer to «TRANSMISSION WIRE»(ref-619159-S13473443452014053000000) )

Signals from the transmission control computer ASSY change the vehicle speed from 1st to 6th gear according to the combination of the transmission 3 way solenoid ASSY (S1, S2, S3, S4, SR) and the clutch control solenoid No. 1 (SL1, SL2). When there is an open or short circuit in the solenoid valve system, the transmission control computer ASSY stops continuity to all solenoids as the fail safe function. As a result, only the mechanical hydraulic circuit is available and the manual shift control is initiated.

ON/OFF STATUS WHEN TRANSMISSION 3 WAY SOLENOID ASSY (S1) IS NORMAL (SELECT LEVER IN D POSITION)

1. Check of transmission 3 way solenoid ASSY (S1) system Disconnect the connector A18 of the transmission control computer ASSY. Measure the voltage between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) VOLTAGE Inspection terminals Inspection conditions Standard value A18-7 (S1) - chassis ground IG ON Less than 1 V Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) RESISTANCE Inspection terminals Inspection conditions Standard value A18-7 (S1) - chassis ground 20°C 11 to 15 ohms Connect the connector A18 of the transmission control computer ASSY. NG: Step 4 OK: Go to Next Step
2. Check wiring harness and connector (transmission wire - transmission control computer ASSY) Disconnect the connector A18 of the transmission control computer ASSY. Disconnect the connector L4 of the transmission control wire. Measure the voltage between the terminals. VOLTAGE Inspection terminals Inspection conditions Standard value L4-1 (S1) - chassis ground IG ON Less than 1 V Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value L4-1 (S1) - A18-7 (S1) Always Less than 1 ohms L4-1 (S1) and A18-7 (S1) - chassis ground Always 10 k ohmsor more Connect the connector L4 of the transmission wire. Connect the connector A18 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
4. Check of transmission 3 way solenoid ASSY (S1) unit Remove the transmission 3 way solenoid ASSY (S1). (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) Check the transmission 3 way solenoid ASSY (S1) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Replacement of the transmission 3 way solenoid ASSY (S1) (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) OK: Repair or replacement of transmission wire (refer to «TRANSMISSION WIRE»(ref-619159-S13473443452014053000000) )

Signals from the transmission control computer ASSY change the vehicle speed from 1st to 6th gear according to the combination of the transmission 3 way solenoid ASSY (S1, S2, S3, S4, SR) and the clutch control solenoid No. 1 (SL1, SL2). When there is an open or short circuit in the solenoid valve system, the transmission control computer ASSY stops continuity to all solenoids as the fail safe function. As a result, only the mechanical hydraulic circuit is available and the manual shift control is initiated.

ON/OFF STATUS WHEN TRANSMISSION 3 WAY SOLENOID ASSY (S2) IS NORMAL (SELECT LEVER IN D POSITION)

1. Check of transmission 3 way solenoid ASSY (S2) system Disconnect the connector A18 of the transmission control computer ASSY. Measure the voltage between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) VOLTAGE Inspection terminals Inspection conditions Standard value A18-17 (S2) - chassis ground IG ON Less than 1 V Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) RESISTANCE Inspection terminals Inspection conditions Standard value A18-17 (S2) - chassis ground 20°C 11 to 15 ohms Connect the connector A18 of the transmission control computer ASSY. NG: Step 4 OK: Go to Next Step
2. Check wiring harness and connector (transmission wire - transmission control computer ASSY) Disconnect the connector A18 of the transmission control computer ASSY. Disconnect the connector L4 of the transmission wire. Measure the voltage between the terminals. VOLTAGE Inspection terminals Inspection conditions Standard value L4-9 (S2) - chassis ground IG ON Less than 1 V Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value L4-9 (S2) - A18-17 (S2) Always Less than 1 ohms L4-9 (S2) and A18-17 (S2) - chassis ground Always 10 k ohmsor more Connect the connector L4 of the transmission wire. Connect the connector A18 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
4. Check of transmission 3 way solenoid ASSY (S2) unit Remove the transmission 3 way solenoid ASSY (S2). (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) Check the transmission 3 way solenoid ASSY (S2) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Replacement of the transmission 3 way solenoid ASSY (S2) (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) OK: Repair or replacement of transmission wire (refer to «TRANSMISSION WIRE»(ref-619159-S13473443452014053000000) )

Signals from the transmission control computer ASSY change the vehicle speed from 1st to 6th gear according to the combination of the transmission 3 way solenoid ASSY (S1, S2, S3, S4, SR) and the clutch control solenoid No. 1 (SL1, SL2). When there is an open or short circuit in the solenoid valve system, the transmission control computer ASSY stops continuity to all solenoids as the fail safe function. As a result, only the mechanical hydraulic circuit is available and the manual shift control is initiated.

ON/OFF STATUS WHEN TRANSMISSION 3 WAY SOLENOID ASSY (S3) IS NORMAL (SELECT LEVER IN D POSITION)

1. Check of transmission 3 way solenoid ASSY (S3) system Disconnect the connector A18 of the transmission control computer ASSY. Measure the voltage between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) VOLTAGE Inspection terminals Inspection conditions Standard value A18-6 (S3) - chassis ground IG ON Less than 1 V Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) RESISTANCE Inspection terminals Inspection conditions Standard value A18-6 (S3) - chassis ground 20°C 11 to 15 ohms Connect the connector A18 of the transmission control computer ASSY. NG: Step 4 OK: Go to Next Step
2. Check wiring harness and connector (transmission wire - transmission control computer) Disconnect the connector A18 of the transmission control computer ASSY. Disconnect the connector L4 of the transmission wire. Measure the voltage between the terminals. VOLTAGE Inspection terminals Inspection conditions Standard value L4-2 (S3) - chassis ground IG ON Less than 1 V Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value L4-2 (S3) - A18-6 (S3) Always Less than 1 ohms L4-2 (S3) - chassis ground Always 10 k ohmsor more Connect the connector L4 of the transmission wire. Connect the connector A18 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
4. Check of transmission 3 way solenoid ASSY (S3) unit Remove the transmission 3 way solenoid ASSY (S3). (Refer to «ASSEMBLY»(ref-619159-S34056789642014053000000) ) Check the transmission 3 way solenoid ASSY (S3) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Replacement of the transmission 3 way solenoid ASSY (S3) (Refer to «ASSEMBLY»(ref-619159-S34056789642014053000000) ) OK: Repair or replacement of transmission wire (refer to «TRANSMISSION WIRE»(ref-619159-S13473443452014053000000) )

Signals from the transmission control computer ASSY change the vehicle speed from 1st to 6th gear according to the combination of the transmission 3 way solenoid ASSY (S1, S2, S3, S4, SR) and the clutch control solenoid No. 1 (SL1, SL2). When there is an open or short circuit in the solenoid valve system, the transmission control computer ASSY stops continuity to all solenoids as the fail safe function. As a result, only the mechanical hydraulic circuit is available and the manual shift control is initiated.

ON/OFF STATUS WHEN TRANSMISSION 3 WAY SOLENOID ASSY (S4) IS NORMAL (SELECT LEVER IN D POSITION)

1. Check of transmission 3 way solenoid ASSY (S4) system (transmission 3 way solenoid ASSY (S4)) Disconnect the connector A18 of the transmission control computer ASSY. Measure the voltage between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) VOLTAGE Inspection terminals Inspection conditions Standard value A18-14 (S4) - chassis ground IG ON Less than 1 V Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) RESISTANCE Inspection terminals Inspection conditions Standard value A18-14 (S4) - chassis ground 20°C 11 to 15 ohms Connect the connector A18 of the transmission control computer ASSY. NG: Step 4 OK: Go to Next Step
2. Check wiring harness and connector (transmission wire - transmission control computer) Disconnect the connector A18 of the transmission control computer ASSY. Disconnect the connector L4 of the transmission wire. Measure the voltage between the terminals. VOLTAGE Inspection terminals Inspection conditions Standard value L4-10 (S4) - chassis ground IG ON Less than 1 V Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value L4-10 (S4) - A18-14 Always Less than 1 ohms L4-10 (S4) and A18-14 (S4) - chassis ground Always 10 k ohmsor more Connect the connector L4 of the transmission wire. Connect the connector A18 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
4. Check of transmission 3 way solenoid ASSY (S4) unit Remove the transmission 3 way solenoid ASSY (S4). (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) Check the transmission 3 way solenoid ASSY (S4) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Replacement of the transmission 3 way solenoid ASSY (S4) (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) OK: Repair or replacement of transmission wire (refer to «TRANSMISSION WIRE»(ref-619159-S13473443452014053000000) )

Signals from the transmission control computer ASSY change the vehicle speed from 1st to 6th gear according to the combination of the transmission 3 way solenoid ASSY (S1, S2, S3, S4, SR) and the clutch control solenoid No. 1 (SL1, SL2). When there is an open or short circuit in the solenoid valve system, the transmission control computer ASSY stops continuity to all solenoids as the fail safe function. As a result, only the mechanical hydraulic circuit is available and the manual shift control is initiated.

ON/OFF STATUS WHEN TRANSMISSION 3 WAY SOLENOID ASSY (SR) IS NORMAL (SELECT LEVER IN D POSITION)

1. Check of transmission 3 way solenoid ASSY (SR) system Disconnect the connector A18 of the transmission control computer ASSY. Measure the voltage between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) VOLTAGE Inspection terminals Inspection conditions Standard value A18-15 (SR) - chassis ground IG ON Less than 1 V Measure the resistance between the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) RESISTANCE Inspection terminals Inspection conditions Standard value A18-15 (SR) - chassis ground 20°C 11 to 15 ohms Connect the connector A18 of the transmission control computer ASSY. NG: Step 4 OK: Go to Next Step
2. Check wiring harness and connector (transmission wire - transmission control computer ASSY) Disconnect the connector A18 of the transmission control computer ASSY. Disconnect the connector L4 of the transmission wire. Measure the voltage between the terminals.) VOLTAGE Inspection terminals Inspection conditions Standard value L4-3 (SR) - chassis ground IG ON Less than 1 V Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value L4-3 (SR) - A18-15 (SR) Always Less than 1 ohms L4-3 (SR) and A18-15 (SR) - chassis ground Always 10 k ohmsor more Connect the connector L4 of the transmission wire. Connect the connector A18 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
4. Check of transmission 3 way solenoid ASSY (SR) unit Remove the transmission 3 way solenoid ASSY (SR). (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) Check the transmission 3 way solenoid ASSY (SR) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Replacement of the automatic transmission 3 way solenoid ASSY (SR) (Refer to «DISASSEMBLY»(ref-619159-S11716910952014053000000) ) OK: Repair or replacement of transmission wire (refer to «TRANSMISSION WIRE»(ref-619159-S13473443452014053000000) )

The value calculated by the transmission control computer ASSY is compared with the data recorded after the calculation when IG is ON, and when they do not match, DTC is detected and continuity to all solenoids is stopped (locked to 4th gear).

1. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )

The transmission control computer ASSY detects M position based on signals from the manual mode switch ASSY.

Scheme 12

Note. Read the freeze frame data using the SSM3. A part of the engine running conditions under which the engine trouble occurred is recorded in the freeze frame data, which is useful for troubleshooting.

1. Manual mode switch ASSY check Disconnect the connector A19 of the transmission control computer ASSY. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value A19-8 (M) - chassis ground Select lever in M position Less than 1 ohms A19-8 (M) - chassis ground Select lever in any other than M position 10 k ohmsor more Connect the connector A19 of the transmission control computer ASSY. NG: Step 4 OK: Go to Next Step
2. Check wiring harness and connector (manual mode switch ASSY - shift position indicator) Disconnect the connector D36 of the shift position indicator. Disconnect the connector D28 of the manual mode switch ASSY. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value D36-6 (MM) - D28-10 (MM+) Always Less than 1 ohms D36-6 (MM) - chassis ground Always 10 k ohmsor more D28-10 (MM+) - chassis ground Always 10 k ohmsor more Connect the connector D28 of the manual mode switch ASSY. Connect the connector D36 of the shift position indicator. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
4. Check of manual mode switch ASSY unit Disconnect the connector D28 of the manual mode switch. Measure the resistance of the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value D28-10 (MM+) - D28-11 (MM-) Select lever in M position Less than 1 ohms Select lever in any other than M position 10 k ohmsor more Connect the connector D28 of the manual mode switch. NG: Replace of manual mode switch ASSY (refer to «REMOVAL»(ref-619159-S26613761902014053000000) ) OK: Go to Next Step
5. Check wiring harness and connector (transmission control computer ASSY - shift position indicator) Disconnect the connector A19 of the transmission control computer ASSY. Disconnect the connector D36 of the shift position indicator. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value D36-5 (M) - A19-8 (M) Always Less than 1 ohms D36-5 (M) - chassis ground Always 10 k ohmsor more A19-8 (M) - chassis ground Always 10 k ohmsor more Connect the connector D36 of the shift position indicator. Connect the connector A19 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector OK: Replacement of shift position indicator (refer to «REMOVAL»(ref-619159-S26613761902014053000000) )

The line pressure control solenoid ASSY (SLT) is controlled according to the duty signal which is predetermined by the transmission control computer ASSY based on signals from the accelerator position sensor and the transmission revolution sensor (SP2, NT). This adjusts line pressure to meet the throttle opening angle and engine output. The transmission control computer ASSY detects slippage of clutch, etc. based on the revolution speed of the transmission revolution sensor (SP2, NT).

1. Wiring harness and connector check Disconnect the connector A18 of the transmission control computer ASSY. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value A18-4 (SLT+) - A18-9 (SLT-) 20°C 5.0 to 5.6 ohms Connect the connector A18 of the transmission control computer ASSY. NG: Step 4 OK: Go to Next Step
2. Check wiring harness and connector (transmission wire - transmission control computer) Disconnect the connector A18 of the transmission control computer ASSY. Disconnect the connector L4 of the transmission wire. Measure the resistance of the vehicle side connector. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement) RESISTANCE Inspection terminals Inspection conditions Standard value A18-4 (SLT+) - L4-11 (SLT+) Always Less than 1 ohms A18-9 (SLT-) - L4-4 (SLT-) Always Less than 1 ohms Measure the voltage between the terminals. VOLTAGE Inspection terminals Inspection conditions Standard value A18-4 (SLT+) - chassis ground IG ON 1 V or less A18-9 (SLT-) - chassis ground IG ON 1 V or less Connect the connector L4 of the transmission wire. Connect the connector A18 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction
4. Check of line pressure control solenoid ASSY (SLT) unit Check the line pressure control solenoid ASSY (SLT) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Repair or replacement of transmission wire (refer to «TRANSMISSION WIRE»(ref-619159-S13473443452014053000000) )

The lock-up control solenoid (SLU) is controlled by the duty signal which is predetermined by the transmission control computer ASSY. Then, lock-up and flex lock-up control is performed.

1. Read the diagnostic code NOTE: Refer for checking procedure and precautions of wiring harness and connector Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Read diagnostic cords according to SSM3 display. (Refer to «CHECKING/CLEARING DIAGNOSTIC CODES»(ref-619150-S03396316552014053000000) ) RESULT Result Go to P2757 or P2758 is output. A P2757 or P2758 and other diagnostic codes are output. B B: Related diagnostic code chart A: Go to Next Step
2. Check of lock-up control solenoid (SLU) unit Check the lock-up control solenoid (SLU) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Go to Next Step
3. Check of transmission valve body ASSY unit Check the transmission valve body ASSY. (Refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) Criteria: There is no malfunction and foreign objects on the solenoid installation portions. NG: Replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Go to Next Step
4. Check of torque converter ASSY unit Check the torque converter ASSY. (Refer to «TORQUE CONVERTER & DRIVE PLATE»(ref-619159-S37407197352014053000000) ) Criteria: Torque converter ASSY is normal. NG: Replacement of torque converter ASSY (refer to «REMOVAL»(ref-619159-S07969847722014053000000) ) OK: Replacement of automatic transmission ASSY (refer to «REMOVAL»(ref-619159-S07969847722014053000000) )

The lock-up control solenoid (SLU) is controlled by the duty signal which is predetermined by the transmission control computer ASSY. Then, lock-up and flex lock-up control is performed.

1. Transmission wire unit check (lock-up control solenoid (SLU)) Disconnect the connector L4 of the transmission wire. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value L4-12 (SLU+) - L4-5 (SLU-) 20°C 5.0 to 5.6 ohms L4-12 (SLU+) - chassis ground Always 10 k ohmsor more L4-5 (SLU-) - chassis ground Always 10 k ohmsor more Connect the connector L4 of the transmission wire. NG: Step 4 OK: Go to Next Step
2. Check wiring harness and connector (transmission wire - transmission control computer) Disconnect the connector A18 of the transmission control computer ASSY. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value A18-13 (SLU+) - A18-1 (SLU-) 20°C 5.0 to 5.6 ohms A18-13 (SLU+) - chassis ground Always 10 k ohmsor more A18-1 (SLU-) - chassis ground Always 10 k ohmsor more Connect the connector A18 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
4. Check of lock-up control solenoid (SLU) unit Check the lock-up control solenoid (SLU) unit. (Refer to «NEUTRAL START SWITCH ASSY»(ref-619159-S10737292672014053000000) ) NG: Repair or replacement of transmission valve body ASSY (refer to «TRANSMISSION VALVE BODY ASSY»(ref-619159-S03062166412014053000000) ) OK: Repair or replacement of transmission wire (refer to «TRANSMISSION WIRE»(ref-619159-S13473443452014053000000) )

The transmission control computer ASSY sends/receives signals to/from ECMs via CAN communication.

Note. Problems on the CAN bus (communication line) can be checked from the DLC3 connector. (Except when a DLC3 branch line is disconnected.) Diagnostic codes related to CAN communication can be checked using SSM3. Although DLC3 is connected to the CAN communication line, CAN communication cannot detect problems on the DLC3 branch lines.

1. Read the diagnostic code Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Read diagnostic cords according to SSM3 display. (Refer to «CHECKING/CLEARING DIAGNOSTIC CODES»(ref-619150-S03396316552014053000000) ) Next: CAN communication system (refer to «HOW TO TROUBLESHOOT»(ref-619155-S21491093182014053000000) )

The transmission control computer ASSY sends/receives signals to/from ECMs via CAN communication.

Note. Problems on the CAN bus (communication line) can be checked from the DLC3 connector. (Except when a DLC3 branch line is disconnected.) Diagnostic codes related to CAN communication can be checked using SSM3. Although DLC3 is connected to the CAN communication line, CAN communication cannot detect problems on the DLC3 branch lines.

1. Read the diagnostic code Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Read diagnostic cords according to SSM3 display. (Refer to «CHECKING/CLEARING DIAGNOSTIC CODES»(ref-619150-S03396316552014053000000) ) RESULT Result Go to P160A is not output at the same time. A P160A is output at the same time. B B: P160A (refer to «DTC P160A RAM ERROR»(ref-619150-S35058948692014053000000) ) A: Go to Next Step
2. Read the diagnostic code Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Read diagnostic cords according to SSM3 display. (Refer to «CHECKING/CLEARING DIAGNOSTIC CODES»(ref-619150-S03396316552014053000000) ) Next: CAN communication system (refer to «HOW TO TROUBLESHOOT»(ref-619155-S21491093182014053000000) )

When the shift is in M position, it can be changed to any gear using the sequential gate of the floor select lever ASSY.

Scheme 13

1. Check of transmission control switch unit Disconnect the connector D28 of the transmission control switch. Check the transmission control switch unit. (Refer to «UNIT INSPECTION»(ref-619159-S40205187112014053000000) ) NG: Replacement of transmission control switch (refer to «REMOVAL»(ref-619159-S26613761902014053000000) ) OK: Go to Next Step
2. Check wiring harness and connector (transmission control switch - transmission control computer) Disconnect the connector A19 of the transmission control computer ASSY. Measure the resistance of the vehicle side connector. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement) RESISTANCE Inspection terminals Inspection conditions Standard value A19-1 (SFTU) - chassis ground When select lever is in M position and shifted to "+" Less than 1 ohms A19-2 (SFTD) - chassis ground When select lever is in M position and shifted to "-" Less than 1 ohms A19-1 (SFTU) - chassis ground Neutral position (M position) 10 k ohmsor more A19-2 (SFTD) - chassis ground Neutral position (M position) 10 k ohmsor more Connect the connector A19 of the transmission control computer ASSY. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Replacement of transmission control computer ASSY Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )

1. Reading of SSM3 data (UP SW/DOWN SW) Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Use SSM3 to display the [Current Data Display & Save] screen according to the screen display and check the computer data recorded when the transmission shift switch of the steering wheel ASSY is operated to +/-. SSM3 SCREEN: [TRANSMISSION CONTROL SYSTEM] -->[CURRENT DATA DISPLAY & SAVE] -->[NORMAL SAMPLING] Item name [Symbol] Item description Display range Normal value Remarks UP SW Indicating transmission control switch (+) ON/OFF Release -->pull the shift switch "+" lever. OFF -->ON - DOWN SW Indicating transmission control switch (-) ON/OFF Release -->pull the shift switch "-" lever. OFF -->ON - NG: Step 2 OK: Inspection for problems that do not normally occur (Refer to «PROCEDURES FOR MALFUNCTION PHENOMENON SIMULATION»(ref-619149-S40880751572014053000000) )
2. Check wiring harness and connector (transmission shift switch - transmission control computer) Disconnect the connector A19 of the transmission control computer ASSY. Check the resistance of the terminals. (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619150-S01717777922014053000000) for terminal arrangement of transmission control computer ASSY) RESISTANCE Inspection terminals Inspection conditions Standard value A19-1 (SFTD) - chassis ground Shift switch Pull the "+" lever. Less than 1 ohms A19-1 (SFTD) - chassis ground A19-2 (SFTU) - chassis ground Neutral position 10 k ohmsor more A19-2 (SFTU) - chassis ground Shift switch Pull the "-" lever. Less than 1 ohms Connect the connector A19 of the transmission control computer ASSY. NG: Step 4 OK: Go to Next Step
3. Replacement of transmission control computer Replace the transmission control computer ASSY. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction
4. Check wiring harness and connector (spiral cable - chassis ground) Disconnect the spiral cable connector A from the spiral cable. Measure the resistance of the spiral cable vehicle side terminal. RESISTANCE Terminal No. (terminal symbol) Inspection conditions Standard value A-7 - chassis ground Always Less than 1 ohms Connect the spiral cable connector A to the spiral cable. NG: Check and replacement of wiring harness and connector OK: Go to Next Step
5. Check wiring harness and connector (spiral cable - transmission control computer) Disconnect the connector A19 of the transmission control computer ASSY. Disconnect the spiral cable connector A from the spiral cable. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value A19-1 (SFTD) - A-2 Always Less than 1 ohms A19-2 (SFTU) - A-1 Always Less than 1 ohms RESISTANCE Inspection terminals Inspection conditions Standard value A19-1 (SFTD) and A-2 -chassis ground Always 10 k ohmsor more A19-2 (SFTU) and A-1 -chassis ground Always 10 k ohmsor more Connect the connector A19 of the transmission control computer ASSY. Connect the spiral cable connector A to the spiral cable. NG: Check and replacement of wiring harness and connector OK: Go to Next Step
6. Transmission shift switch check (transmission shift switch - spiral cable) CAUTION: Refer to «SRS AIRBAG SYSTEM»(ref-619160-S11196911262014053000000) for airbag handling and working precautions Remove the horn button ASSY. NOTE: Refer to «DRIVER SIDE AIR BAG MODULE»(ref-619161-S38560338822014053000000) for horn button ASSY removal Disconnect the connector C of the spiral cable. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value C-4 - C-1 Shift switch Pull the "+" lever. Less than 1 ohms C-4 - C-1 C-3 - C-1 Shift switch Neutral position 10 k ohmsor more C-3 - C-1 Shift switch Pull the "-" lever. Less than 1 ohms Connect the connector C of the spiral cable. NG: Step 7 OK: Spiral cable SUB-ASSY check (refer to «STEERING ROLL CONNECTOR»(ref-619161-S17569026022014053000000) )
7. Check of transmission shift switch unit Remove the transmission shift switch. (Refer to «TRANSMISSION SHIFT SWITCH»(ref-619159-S38499071642014053000000) ) Check the transmission shift switch unit. (Refer to «INSTALLATION»(ref-619159-S20303259442014053000000) ) NG: Replacement of transmission shift switch (refer to «TRANSMISSION SHIFT SWITCH»(ref-619159-S38499071642014053000000) ) OK: Check and replacement of switch wire (refer to «TRANSMISSION SHIFT SWITCH»(ref-619159-S38499071642014053000000) )

Drive mode can be switched by inputting signal of the pattern select switch ASSY to the transmission control computer.

Scheme 14

1. SSM3 data reading Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Use SSM3 to display the [Current Data Display & Save] screen according to the screen display and check the computer data recorded when the SPORT mode switch is operated. SSM3 SCREEN: [TRANSMISSION CONTROL SYSTEM] -->[CURRENT DATA DISPLAY & SAVE] -->[NORMAL SAMPLING] Item name [Symbol] Item description Display range Normal value Remarks SPORT SW Indicating pattern select (SPORT) switch ON<---->OFF Pattern select (SPORT) switch OFF-->ON OFF -->ON - NG: Step 3 OK: Go to Next Step
2. SSM3 data reading Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Use SSM3 to display the [Current Data Display & Save] screen according to the screen display and check the computer data recorded when the SNOW mode switch is operated. SSM3 SCREEN: [TRANSMISSION CONTROL SYSTEM] -->[CURRENT DATA DISPLAY & SAVE] -->[NORMAL SAMPLING] Item name [Symbol] Item description Display range Normal value Remarks SNOW SW Indicating pattern select (SNOW) switch ON<---->OFF Pattern select (SNOW) switch OFF-->ON OFF -->ON - NG: Step 6 OK: Symptom table (refer to «SYMPTOM TABLE»(ref-619150-S41451547652014053000000) )
3. Check of pattern select switch ASSY unit Disconnect the connector D35 of pattern select switch ASSY. Check the pattern select switch ASSY (SPORT switch) unit. (Refer to «UNIT INSPECTION»(ref-619159-S19259688732014053000000) ) NG: Replacement of pattern select switch ASSY (refer to «PATTERN SELECT SWITCH ASSY»(ref-619159-S15851839972014053000000) ) OK: Go to Next Step
4. Check wiring harness and connector (pattern select switch - transmission control computer - chassis ground) Disconnect the connector A19 of the transmission control computer. Disconnect the connector D35 of pattern select switch ASSY. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value A19-13 (SPORT) -D35-4 (SPORT) Always Less than 1 ohms D35-8 - chassis ground Always Less than 1 ohms A19-13 (SPORT) -chassis ground Always 10 k ohmsor more Connect the connector A19 of the transmission control computer. Connect the connector D35 of the pattern select switch ASSY. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
5. Replacement of transmission control computer ASSY Replace the transmission control computer. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )
6. Check of pattern select switch ASSY unit Disconnect the connector D35 of pattern select switch ASSY. Check the pattern select switch ASSY (SNOW switch) unit. (Refer to «UNIT INSPECTION»(ref-619159-S19259688732014053000000) ) NG: Replacement of pattern select switch ASSY (refer to «PATTERN SELECT SWITCH ASSY»(ref-619159-S15851839972014053000000) ) OK: Go to Next Step
7. Wiring harness or connector check (pattern select switch - transmission control computer - chassis ground) Disconnect the connector A19 of the transmission control computer. Disconnect the connector D35 of pattern select switch ASSY. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value A19-24 (SNOW) -D35-6 (SNOW) Always Less than 1 ohms D35-8 - chassis ground Always Less than 1 ohms A19-24 (SNOW) -chassis ground Always 10 k ohmsor more Connect the connector A19 of the transmission control computer. Connect the connector D35 of the pattern select switch ASSY. NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
8. Replacement of transmission control computer ASSY Replace the transmission control computer. (Refer to «TRANSMISSION CONTROL COMPUTER ASSY»(ref-619159-S39925057602014053000000) ) Next: AT unit correction (refer to «WORK SUPPORT»(ref-619150-S26530137412014053000000) )