Automatic Transaxle (Diagnostic Codes): Diagnosis Scion xD I

INSPECTION PROCEDURE

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

HINT

Using a Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

Note. In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

1. READ DATA LIST Warm up the engine. Turn the ignition switch off. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List. According to the display on the Techstream, read the Data List. Tester Display Measurement Item/Range Normal Condition Diagnostic Note Neutral Position SW Signal PNP switch Status/ON or OFF Shift lever position is: P and N: ON Except P and N: OFF When the shift lever position displayed on the Techstream differs from the actual position, adjustment of the PNP switch or the shift cable may be incorrect. Shift SW Status (R Range) PNP switch Status/ON or OFF Shift lever position is: R: ON Except R: OFF Shift SW Status (P Range) PNP switch Status/ON or OFF Shift lever position is: P: ON Except P: OFF Shift SW Status (N Range) PNP switch Status/ON or OFF Shift lever position is: N: ON Except N: OFF Shift SW Status (D Range) PNP switch Status/ON or OFF Shift lever position is: D and 3: ON Except D and 3: OFF Shift SW Status (3 Range) PNP switch Status/ON or OFF Shift lever position is: 3: ON Except 3: OFF Shift SW Status (2 Range) PNP SW Status/ON or OFF Shift lever position is: 2: ON Except 2: OFF Shift SW Status (L Range) PNP SW Status/ON or OFF Shift lever position is: L: ON Except L: OFF

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1. CHECK HARNESS AND CONNECTOR (BATTERY - PARK/NEUTRAL POSITION SWITCH) Disconnect the park/neutral position switch connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C28-2 (RB) - Body ground Ignition switch ON 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (OUTPUT SIGNAL) Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C28-4 (B) - Body ground Ignition switch ON 11 to 14 V NG --> See step 8 OK: Go to next step
3. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 4 (B) - 5 (L) Shift lever P or N position Below 1 ohms Shift lever other than P and N position 10 kohms or higher 2 (RB) - 6 (PL) Shift lever P position Below 1 ohms Shift lever other than P position 10 kohms or higher 1 (RL) - 2 (RB) Shift lever R position Below 1 ohms Shift lever other than R position 10 kohms or higher 2 (RB) - 9 (NL) Shift lever N position Below 1 ohms Shift lever other than N position 10 kohms or higher 2 (RB) - 7 (DL) Shift lever D or 3 position Below 1 ohms Shift lever other than D and 3 position 10 kohms or higher 2 (RB) - 3 (2L) Shift lever 2 position Below 1 ohms Shift lever other than 2 position 10 kohms or higher 2 (RB) - 8 (LL) Shift lever L position Below 1 ohms Shift lever other than L position 10 kohms or higher NG --> See step 9 OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM) Connect the park/neutral position switch connector. Disconnect the ECM connectors. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition C19-73 (P) - Body ground Shift lever P position 11 to 14 V Shift lever other than P position Below 1 V C19-53 (R) - Body ground Shift lever R position 11 to 14 V * Shift lever other than R position Below 1 V C19-54 (N) - Body ground Shift lever N position 11 to 14 V Shift lever other than N position Below 1 V C19-56 (D) - Body ground Shift lever D or 3 position 11 to 14 V Shift lever other than D and 3 position Below 1 V C19-55 (2) - Body ground Shift lever 2 position 11 to 14 V Shift lever other than 2 position Below 1 V C19-74 (L) - Body ground Shift lever L position 11 to 14 V Shift lever other than L position Below 1 V HINT: * : The voltage will drop slightly due to lighting up of the back up light. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - SHIFT LOCK CONTROL UNIT) Disconnect the transmission control switch connector of the shift lock control unit assembly. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition F24-9 (NSSD) - F24-8 (E) Shift lever D or 3 position 11 to 14 V Shift lever other than D and 3 position Below 1 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
6. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 (AT3) - 9 (NSSD) Shift lever 3 position Below 1 ohms Shift lever D position 10 kohms or higher NG --> See step 10 OK: Go to next step
7. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - ECM) Connect the transmission control switch connector of the shift lock control unit assembly. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A21-26 (ODMS) - Body ground Shift lever 3 position 11 to 14 V Shift lever other than 3 position Below 1 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
8. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM) Turn the ignition switch off. Disconnect the ECM connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) Tester Connection Condition Specified Condition C28-4 (B) - C19-52 (STAR(NSW)) Always Below 1 ohms Standard Resistance (Check for short) Tester Connection Condition Specified Condition C28-4 (B) - Body ground Always 10 kohms or higher C19-52 (STAR(NSW)) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
9. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to «REMOVAL»(ref-388726-S38430046632011031100000)
10. REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY. Refer to «REMOVAL»(ref-388726-S35985342092011031100000)
11. REPLACE ECM. Refer to «REMOVAL»(ref-388735-S27161698942011031100000)

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

HINT

Using a Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

Note. In the table below, the value listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

1. READ DATA LIST Warm up the engine. Turn the ignition switch off. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List. According to the display on the Techstream, read the Data List. Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/T Oil Temperature 1 ATF temperature Sensor Value/ min.: -40°C (-40°F) max.: 215°C (419°F) After Stall Test: Approximately 80°C (176°F) Equal to ambient temperature when cold soak If the value is "-40°C (-40°F)" or "150°C (302°F) or more ", ATF temperature sensor circuit is opened or shorted. HINT: When DTC P0712 is output and the Techstream output is 150°C (302°F), there is a short circuit. When DTC P0713 is output and the Techstream output is -40°C (-40°F), there is an open circuit. Measure the resistance between terminal THO (TH01) and body ground. Temperature Displayed Malfunction -40°C (-40°F) Open circuit 150°C (302°F) or more Short circuit HINT: If a circuit related to the ATF temperature sensor becomes open, P0713 is immediately set (in 0.5 second). When P0713 is set, P0711 cannot be detected. It is not necessary to inspect the circuit when P0711 is set.

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

HINT

Using a Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

Note. In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

1. READ DATA LIST Warm up the engine. Turn the ignition switch off. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List. According to the display on the Techstream, read the Data List. Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/T Oil Temperature 1 ATF temperature Sensor Value/ min.: -40°C (-40°F) max.: 215°C (419°F) After Stall Test: Approximately 80°C (176°F) Equal to ambient temperature while engine is cold If the value is "-40°C (-40°F)" or "150°C (302°F) or more ", ATF temperature sensor circuit is opened or shorted. HINT: When DTC P0712 is output and Techstream output is 150°C (302°F), there is a short circuit. When DTC P0713 is output and Techstream output is -40°C (-40°F), there is an open circuit. Measure the resistance between terminal THO1 (THO) and body ground. Temperature Displayed Malfunction -40°C (-40°F) Open circuit 150°C (302°F) or more Short circuit HINT: If a circuit related to the ATF temperature sensor become open, P0713 is immediately set (in 0.5 second). When P0713 is set, P0711 cannot be detected. It is not necessary to inspect the circuit when P0711 is set.

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1. INSPECT TRANSMISSION WIRE (ATF TEMPERATURE SENSOR) Disconnect the transmission wire connector from the transaxle. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) Tester Connection Condition Specified Condition 1 (THO) - 6 (E2) Always 79 ohms to 156 kohms Standard Resistance (Check for short) Tester Connection Condition Specified Condition 1 (THO) - Body ground Always 10 kohms or higher 6 (E2) - Body ground Always 10 kohms or higher HINT: If the resistance is out of the specified range for any of the ATF temperatures shown in the table below, the driveability of the vehicle may decrease. ATF Temperature Specified Condition 10°C (50°F) 5 to 8 kohms 25°C (77°F) 2.5 to 4.5 kohms 110°C (230°F) 0.22 to 0.28 kohms NG --> See step 3 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) Connect the transmission wire connector to the transaxle. Disconnect the ECM connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) Tester Connection Condition Specified Condition C19-72 (THO1) - C19-95 (ETHO) Always 79 ohms to 156 kohms Standard Resistance (Check for short) Tester Connection Condition Specified Condition C19-72 (THO1) - Body ground Always 10 kohms or higher C19-95 (ETHO) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
3. REPAIR OR REPLACE TRANSMISSION WIRE. Refer to «REMOVAL»(ref-388726-S40305328152011031100000)
4. REPLACE ECM. Refer to «REMOVAL»(ref-388735-S27161698942011031100000)

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

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1. INSPECT SPEED SENSOR INSTALLATION Check the speed sensor NT installation. OK The installation bolt is tightened properly and there is no clearance between the sensor and transaxle case. NG --> SECURELY INSTALL SENSOR OR REPLACE SPEED SENSOR NT OK: Go to next step
2. INSPECT SPEED SENSOR NT Disconnect the speed sensor NT connector from the transaxle. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 560 to 680 ohms NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (SPEED SENSOR NT - ECM) Connect the speed sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) Tester Connection Condition Specified Condition C19-125 (NT+) - C19-124 (NT-) 20°C (68°F) 560 to 680 ohms Standard Resistance (Check for short) Tester Connection Condition Specified Condition C19-125 (NT+) - Body ground Always 10 kohms or higher C19-124 (NT-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
4. REPLACE ECM. Refer to «REMOVAL»(ref-388735-S27161698942011031100000)
5. REPLACE SPEED SENSOR NT. Refer to «REMOVAL»(ref-388726-S12786967742011031100000)

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

HINT

Using a Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

1. PERFORM ACTIVE TEST Warm up the engine. Turn the ignition switch off. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test. According to the display on the Techstream, perform the Active Test. HINT: While driving, the shift position can be forcibly changed with the Techstream. Comparing the shift position commanded by the Active Test with the actual shift position enables you to confirm the problem. Refer to «FAIL-SAFE CHART»(ref-388736-S36820093062011031100000) . Tester Display Test Part Control Range Diagnostic Note Control the Shift Position [Test Details] Operate the shift solenoid valve and set each shift position by yourself. [Vehicle Condition] 50 km/h (31 mph) or less [Others] Press "-->" button: Shift up Press "<--" button: Shift down 1st/2nd/3rd/4th Possible to check the operation of the shift solenoid valves. HINT: This test can be conducted when the vehicle speed is 50 km/h (31 mph) or less. The shift position commanded by the ECM is shown in the Data List/Shift Status display on the Techstream.

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1. CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0751) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs using the Techstream. RESULT Result Proceed to P0751 A P0751 and other DTCs B HINT: If any other codes besides "P0751" are output, perform the troubleshooting for those DTCs first. B --> See step 5 A: Go to next step
2. INSPECT SHIFT SOLENOID VALVE S1 Remove the shift solenoid valve S1. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Solenoid Connector (S1) - Solenoid Body (S1) 15 to 25°C (59 to 77°F) 11 to 15 ohms Connect the positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body. OK The solenoid makes an operating sound. NG --> See step 6 OK: Go to next step
3. INSPECT TRANSMISSION VALVE BODY ASSEMBLY OK There are no foreign objects on each valve and they operate smoothly. NG --> See step 7 OK --> See step 4
4. REPAIR OR REPLACE AUTOMATIC TRANSAXLE ASSEMBLY. Refer to «REMOVAL»(ref-388726-S12652634162011031100000)
5. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-388736-S26548487512011031100000)
6. REPLACE SHIFT SOLENOID VALVE S1. Refer to «DISASSEMBLY»(ref-388726-S37557252462011031100000)
7. REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY. Refer to «REMOVAL»(ref-388726-S20724651532011031100000)

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

HINT

Using a Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

1. PERFORM ACTIVE TEST Warm up the engine. Turn the ignition switch off. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test. According to the display on the Techstream, perform the Active Test. HINT: While driving, the shift position can be forcibly changed with the Techstream. Comparing the shift position commanded by the Active Test with the actual shift position enables you to confirm the problem. Refer to «FAIL-SAFE CHART»(ref-388736-S36820093062011031100000) . Tester Display Test Part Control Range Diagnostic Note Control the Shift Position [Test Details] Operate the shift solenoid valve and set each shift position by yourself. [Vehicle Condition] 50 km/h (31 mph) or less [Others] Press "-->" button: Shift up Press "<--" button: Shift down 1st/2nd/3rd/4th Possible to check the operation of the shift solenoid valves. HINT: This test can be conducted when the vehicle speed is 50 km/h (31 mph) or less. The shift position commanded by the ECM is shown in the Data List/Shift Status display on the Techstream.

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1. CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0756) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs using the Techstream. RESULT Result Proceed to P0756 A P0756 and other DTCs B HINT: If any other codes besides "P0756" are output, perform the troubleshooting for those DTCs first. B --> See step 5 A: Go to next step
2. INSPECT SHIFT SOLENOID VALVE S2 Remove the shift solenoid valve S2. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Solenoid Connector (S2) - Solenoid Body (S2) 15 to 25°C (59 to 77°F) 11 to 15 ohms Connect the positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body. OK The solenoid makes an operating sound. NG --> See step 6 OK: Go to next step
3. INSPECT TRANSMISSION VALVE BODY ASSEMBLY OK There are no foreign objects on each valve and they operate smoothly. NG --> See step 7 OK --> See step 4
4. REPAIR OR REPLACE AUTOMATIC TRANSAXLE ASSEMBLY. Refer to «REMOVAL»(ref-388726-S12652634162011031100000)
5. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-388736-S26548487512011031100000)
6. REPLACE SHIFT SOLENOID VALVE S2. Refer to «DISASSEMBLY»(ref-388726-S37557252462011031100000)
7. REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY. Refer to «REMOVAL»(ref-388726-S20724651532011031100000)

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

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1. INSPECT TRANSMISSION WIRE (ST) Disconnect the transmission wire connector from the transaxle. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2 - Body ground 15 to 25°C (59 to 77°F) 11 to 15 ohms NG --> See step 4 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) Connect the transmission connector to the transaxle. Disconnect the connector from the ECM. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C19-80 (ST) - Body ground 15 to 25°C (59 to 77°F) 11 to 15 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
3. REPLACE ECM. Refer to «REMOVAL»(ref-388735-S27161698942011031100000)
4. INSPECT SHIFT SOLENOID VALVE ST Remove the shift solenoid valve ST. Measure the resistance according to the value(s) in the table below. Standard resistance Tester Connection Condition Specified Condition Solenoid Connector (ST) - Solenoid Body (ST) 15 to 25°C (59 to 77°F) 11 to 15 ohms Connect the positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body. Standard The solenoid makes an operating sound. NG --> See step 6 OK --> See step 5
5. REPAIR OR REPLACE TRANSMISSION WIRE. Refer to «REMOVAL»(ref-388726-S40305328152011031100000)
6. REPLACE SHIFT SOLENOID VALVE ST. Refer to «DISASSEMBLY»(ref-388726-S37557252462011031100000)

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

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1. INSPECT TRANSMISSION WIRE (S1) Disconnect the transmission wire connector from the transaxle. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 5 - Body ground 15 to 25°C (59 to 77°F) 11 to 15 ohms NG --> See step 4 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) Connect the transmission wire connector to the transaxle. Disconnect the connector from the ECM. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C19-79 (S1) - Body ground 15 to 25°C (59 to 77°F) 11 to 15 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
3. REPLACE ECM. Refer to «REMOVAL»(ref-388735-S27161698942011031100000)
4. INSPECT SHIFT SOLENOID VALVE S1 Remove the shift solenoid valve S1. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Solenoid Connector (S1) - Solenoid Body (S1) 15 to 25°C (59 to 77°F) 11 to 15 ohms Connect the positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body. Standard The solenoid makes an operating sound. NG --> See step 6 OK --> See step 5
5. REPAIR OR REPLACE TRANSMISSION WIRE. Refer to «REMOVAL»(ref-388726-S40305328152011031100000)
6. REPLACE SHIFT SOLENOID VALVE S1. Refer to «DISASSEMBLY»(ref-388726-S37557252462011031100000)

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

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1. INSPECT TRANSMISSION WIRE (S2) Disconnect the transmission wire connector from the transaxle. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 10 - Body ground 15 to 25°C (59 to 77°F) 11 to 15 ohms NG --> See step 4 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) Connect the transmission wire connector to the transaxle. Disconnect the connector from the ECM. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C19-78 (S2) - Body ground 15 to 25°C (59 to 77°F) 11 to 15 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
3. REPLACE ECM. Refer to «REMOVAL»(ref-388735-S27161698942011031100000)
4. INSPECT SHIFT SOLENOID VALVE S2 Remove the shift solenoid valve S2. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Solenoid Connector (S2) - Solenoid Body (S2) 15 to 25°C (59 to 77°F) 11 to 15 ohms Connect the positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body. Standard The solenoid makes an operating sound. NG --> See step 6 OK --> See step 5
5. REPAIR OR REPLACE TRANSMISSION WIRE. Refer to «REMOVAL»(ref-388726-S40305328152011031100000)
6. REPLACE SHIFT SOLENOID VALVE S2. Refer to «DISASSEMBLY»(ref-388726-S37557252462011031100000)

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

HINT

Using a Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

1. PERFORM ACTIVE TEST Warm up the engine. Turn the ignition switch off. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test. According to the display on the Techstream, perform the Active Test. Tester Display Test Part Control Range Diagnostic Note Activate the Solenoid (SLT)* [Test Details] Operate the shift solenoid SLT and raise the line pressure. [Vehicle Condition] Vehicle stopped Engine idling HINT: OFF: Line pressure up (When the active test of "Activate the Solenoid (SLT)" is performed, the ECM commands the SLT solenoid to turn off). ON: No action (normal operation) ON/OFF - * : Activate the Solenoid (SLT) in the Active Test is performed to check the line pressure changes by connecting the SST to the automatic transaxle, which is used in the HYDRAULIC TEST. Refer to «HYDRAULIC TEST»(ref-388736-S35378552702011031100000) as well. HINT: The pressure values in Active Test and HYDRAULIC TEST are different from each other.

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1. CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P2714) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs using the Techstream. RESULT Result Proceed to P2714 A P2714 and other DTCs B HINT: If any other codes besides "P2714" are output, perform the troubleshooting for those DTCs first. B --> See step 6 A: Go to next step
2. INSPECT SHIFT SOLENOID VALVE SLT Remove the shift solenoid valve SLT. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 5.0 to 5.6 ohms Connect the positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve. OK The solenoid makes an operating sound. NG --> See step 7 OK: Go to next step
3. INSPECT TRANSMISSION VALVE BODY ASSEMBLY OK There are no foreign objects on each valve. NG --> See step 8 OK: Go to next step
4. INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY OK The torque converter clutch operates normally. NG --> See step 9 OK --> See step 5
5. REPAIR OR REPLACE AUTOMATIC TRANSAXLE ASSEMBLY. Refer to «REMOVAL»(ref-388726-S12652634162011031100000)
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-388736-S26548487512011031100000)
7. REPLACE SHIFT SOLENOID VALVE SLT. Refer to «DISASSEMBLY»(ref-388726-S37557252462011031100000)
8. REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY. Refer to «REMOVAL»(ref-388726-S20724651532011031100000)
9. REPLACE TORQUE CONVERTER CLUTCH ASSEMBLY. Refer to «REMOVAL»(ref-388726-S12652634162011031100000)

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

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Scheme 428

1. INSPECT TRANSMISSION WIRE (SLT) Disconnect the transmission wire connector from the transaxle. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) Tester Connection Condition Specified Condition 3 (SLT+) - 8 (SLT-) 20°C (68°F) 5.0 to 5.6 ohms Standard Resistance (Check for short) Tester Connection Condition Specified Condition 3 (SLT+) - Body ground Always 10 kohms or higher 8 (SLT-) - Body ground Always 10 kohms or higher NG --> See step 3 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) Connect the transmission wire connector to the transaxle. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) Tester Connection Condition Specified Condition C19-40 (SLT+) - C19-39 (SLT-) 20°C (68°F) 5.0 to 5.6 ohms Standard Resistance (Check for short) Tester Connection Condition Specified Condition C19-40 (SLT+) - Body ground Always 10 kohms or higher C19-39 (SLT-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 5
3. INSPECT SHIFT SOLENOID VALVE SLT Remove the shift solenoid valve SLT. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 5.0 to 5.6 ohms Connect the positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve. OK The solenoid makes an operating sound. NG --> See step 6 OK --> See step 4
4. REPAIR OR REPLACE TRANSMISSION WIRE. Refer to «REMOVAL»(ref-388726-S40305328152011031100000)
5. REPLACE ECM. Refer to «REMOVAL»(ref-388735-S27161698942011031100000)
6. REPLACE SHIFT SOLENOID VALVE SLT. Refer to «DISASSEMBLY»(ref-388726-S37557252462011031100000)

Scheme 429

The ECM uses the signals from the throttle position sensor, turbine (input) speed sensor, vehicle speed sensor and crankshaft position sensor to monitor the engagement condition of the lock-up clutch.

Then the ECM compares the engagement condition of the lock-up clutch with the lock-up schedule in the ECM memory to detect mechanical problems of shift solenoid valve SLU, valve body and torque converter clutch.

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

Scheme 430

1. ACTIVE TEST HINT: Performing the Active Test using the Techstream allows components, such as the relay, VSV, and actuator, to be operated without removing any parts. Performing the Active Test as the first step of troubleshooting is one method of shortening labor time. It is possible to display the Data List during the Active Test. Warm up the engine. Turn the ignition switch off. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test. According to the display on the Techstream, perform the Active Test. Tester Display Test Part Control Range Diagnostic Note Activate the Lock Up [Test Details] Control shift solenoid SLU to set automatic transaxle to lock-up condition. [Vehicle Condition] Vehicle Speed: 36 mph (60 km/h) or more, and 4th gear ON/OFF Possible to check Lock-up operation. HINT: This test can be conducted when the vehicle speed is 60 km/h (36 mph) or less. This test can be conducted in 4th gear. Lightly depress the accelerator pedal and check that the engine speed does not change abruptly. HINT: When changing the accelerator pedal opening angle while driving, if the engine speed does not change, lock-up is on. Slowly, but not fully, release the accelerator pedal in order to decelerate. (Fully releasing the pedal will close the throttle valve and lock-up may be turned off.)

Scheme 431

1. CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P2757) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Select the following items: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs using the Techstream. RESULT Result Proceed to P2757 A P2757 and other DTCs B HINT: If any other DTCs besides P2757 are output, perform troubleshooting for those DTCs first. B --> See step 6 A: Go to next step
2. INSPECT SHIFT SOLENOID VALVE SLU Remove shift solenoid valve SLU. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 5.0 to 5.6 ohms Connect the positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve. OK The solenoid makes operating sounds. TEXT IN ILLUSTRATION *1 Component without harness connected: (Shift Solenoid Valve SLU) NG --> See step 7 OK: Go to next step
3. INSPECT TRANSMISSION VALVE BODY ASSEMBLY OK There are no foreign objects on any valves and they operate smoothly. NG --> See step 8 OK: Go to next step
4. INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY OK The torque converter clutch operates normally. NG --> See step 9 OK --> See step 5
5. REPAIR OR REPLACE AUTOMATIC TRANSAXLE ASSEMBLY. Refer to «REMOVAL»(ref-388726-S12652634162011031100000)
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-388736-S26548487512011031100000)
7. REPLACE SHIFT SOLENOID VALVE SLU. Refer to «DISASSEMBLY»(ref-388726-S37557252462011031100000)
8. REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY. Refer to «REMOVAL»(ref-388726-S20724651532011031100000)
9. REPLACE TORQUE CONVERTER CLUTCH ASSEMBLY. Refer to «REMOVAL - Step 15»(ref-388726-S41650223872011031100000)

Scheme 432

The amount of current flowing to the solenoid is controlled by the duty ratio* of the ECM output signal. The higher the duty ratio* becomes, the higher the lock-up hydraulic pressure becomes during the lock-up operation.

*: The duty ratio is the ratio of the current ON time (A) to the total of the current ON and OFF times (A + B).

Duty Ratio (%) = A / (A + B) x 100

Note. Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

Scheme 433

Scheme 434

1. INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU) Disconnect the transmission wire connector from the transaxle. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) Tester Connection Condition Specified Condition 4 (SLU+) - 9 (SLU-) 20°C (68°F) 11 ohms to 15 ohms Standard Resistance (Check for short) Tester Connection Condition Specified Condition 4 (SLU+) - Body ground Always 10 kohms or higher 9 (SLU-)- Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected: (Transmission Wire) NG --> See step 3 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) Connect the transmission wire connector to the transaxle. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) Tester Connection Condition Specified Condition C19-57 (SLU+) - C19-77 (SLU-) 20°C (68°F) 11 ohms to 15 ohms Standard Resistance (Check for short) Tester Connection Condition Specified Condition C19-57 (SLU+) - Body ground Always 10 kohms or higher C19-77 (SLU-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector: (to ECM) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 5
3. INSPECT SHIFT SOLENOID VALVE SLU Remove shift solenoid valve SLU. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 5.0 ohms to 5.6 ohms Connect the positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve. OK The solenoid makes operating sounds. TEXT IN ILLUSTRATION *1 Component without harness connected: (Shift Solenoid Valve SLU) NG --> See step 6 OK --> See step 4
4. REPAIR OR REPLACE TRANSMISSION WIRE. Refer to «REMOVAL»(ref-388726-S40305328152011031100000)
5. REPLACE ECM. Refer to «REMOVAL»(ref-388735-S27161698942011031100000)
6. REPLACE SHIFT SOLENOID VALVE SLU. Refer to «DISASSEMBLY»(ref-388726-S37557252462011031100000)