Smart Key System (For Entry Function) (Diagnostics - Introduction): Diagnosis Toyota Corolla XI

PROBLEM SYMPTOMS TABLE [08/2013 - ]

HINT

1. If a problem occurs in certain locations or at certain times of day, check for the possibility of wave interference.
2. When the electrical key transmitter sub-assembly is brought near the door control receiver (RF band), door outside handle (LF band), indoor electrical key antenna (LF band) or any of the electrical key antennas (LF band), the possibility of wave interference decreases. By doing this, whether wave interference is causing the problem can be checked.
3. Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
4. Inspect the fuses and relays related to this system before inspecting the suspected areas below.

SMART KEY SYSTEM (FOR ENTRY FUNCTION)

Scheme 39

Scheme 40

Scheme 41

Scheme 42

Scheme 43

Scheme 44

Scheme 45

Scheme 46

Scheme 47

Scheme 48

Scheme 49

Scheme 50

Scheme 51

1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Disconnect the E57 certification ECU (smart key ECU assembly) connector. Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item E57-11 (E) - Body ground - W-B - Body ground Ground Always Below 1 ohms - E57-2 (+B) - E57-11 (E) Input L - W-B +B power supply Always 11 to 14 V - E57-10 (CUTB) - E57-11 (E) Input LG - W-B Dark current cut pin* Always 11 to 14 V - *: In order to prevent the vehicle battery from being depleted when the vehicle is shipped long distances, a fuse that cuts unnecessary electrical load while the vehicle is being shipped is set in the circuit. If the fuse is removed, the circuit becomes open. If the fuse that is between the vehicle battery and terminal CUTB is removed and the circuit is open, the certification ECU (smart key ECU assembly) changes to a certain control mode (example: the transmission of radio waves every 0.25 seconds, which form the detection area, stops). If the result is not as specified, there may be a malfunction on the wire harness side or the fuse is removed. Reconnect the E57 certification ECU (smart key ECU assembly) connector. Measure the voltage and check for pulses according to the value(s) in the table below. Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item E59-5 (IG) - E57-11 (E) Input GR - W-B GR power supply Engine switch off --> on (IG) Below 1 V --> 11 to 14 V Ignition Switch E59-12 (CLG1) - E57-11 (E) Output R - W-B Output to driver door electrical key antenna (request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought inside detection area*1 All doors locked through wireless operation Pulse generation (See waveform 1 (Scheme 40) ) Over Head + Driver Side (key diagnostic mode) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area*2 All doors locked through wireless operation Pulse generation (See waveform 2 (Scheme 41) ) Over Head + Driver Side (key diagnostic mode) E59-13 (CG1B) - E57-11 (E) Output W - W-B Output to driver door electrical key antenna (terminal on opposite side of component from CLG1 output terminal) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area*2 All doors locked through wireless operation Pulse generation (See waveform 2 (Scheme 41) ) Over Head + Driver Side (key diagnostic mode) E59-11 (CLG2) - E57-11 (E) Output B - W-B Output to front passenger door electrical key antenna (request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought inside detection area*1 All doors locked through wireless operation Pulse generation (See waveform 1 (Scheme 40) ) Over Head + Passenger Side (key diagnostic mode) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area*2 All doors locked through wireless operation Pulse generation (See waveform 2 (Scheme 41) ) Over Head + Passenger Side (key diagnostic mode) E59-10 (CG2B) - E57-11 (E) Output Y - W-B Output to front passenger door electrical key antenna (terminal on opposite side of component from CLG2 output terminal) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area*2 All doors locked through wireless operation Pulse generation (See waveform 2 (Scheme 41) ) Over Head + Passenger Side (key diagnostic mode) E59-3 (CLG5) - E57-11 (E) Output P - W-B Output to No. 1 indoor electrical key antenna assembly (front floor) Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door opened Door closed Within 30 seconds Pulse generation (See waveform 3 (Scheme 42) ) Over Head + Front Room (key diagnostic mode) E59-2 (CG5B) - E57-11 (E) Output G - W-B Output to No. 1 indoor electrical key antenna assembly (front floor) (terminal on opposite side of component from CLG5 output terminal) Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door opened Door closed Within 30 seconds Pulse generation (See waveform 3 (Scheme 42) ) Over Head + Front Room (key diagnostic mode) E59-20 (TSW1) - E57-11 (E) Input V - W-B Driver door lock sensor signal input (Sends signal from door lock sensor on front door outside handle assembly (for driver door) to certification ECU (smart key ECU assembly). Certification ECU (smart key ECU assembly) sends 12 V pulse waveform every 20 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded. Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Driver door lock sensor not touched --> touched Pulse generation (See waveform 5 (Scheme 44) ) D-Door Trigger Switch E59-8 (TSW2) - E57-11 (E) Input R - W-B Front passenger door lock sensor signal input (Sends signal from door lock sensor on front door outside handle assembly (for front passenger door) to certification ECU (smart key ECU assembly). Certification ECU (smart key ECU assembly) sends 12 V pulse waveform every 20 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded. Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Front passenger door lock sensor not touched --> touched Pulse generation (See waveform 5 (Scheme 44) ) P-Door Trigger Switch E59-22 (SEN1) - E57-11 (E) Input L - W-B Driver door unlock sensor signal input (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal (sensing) to certification ECU (smart key ECU assembly)) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors locked Electrical key transmitter sub-assembly not sufficiently close to vehicle Driver door unlock sensor not touched --> touched Pulse generation (See waveform 5 (Scheme 44) ) D-Door Touch Sensor E59-23 (SEN2) - E57-11 (E) Input W - W-B Front passenger door unlock sensor signal input (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal (sensing) to certification ECU (smart key ECU assembly)) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors locked Electrical key transmitter sub-assembly not sufficiently close to vehicle Front passenger door unlock sensor not touched --> touched Pulse generation (See waveform 5 (Scheme 44) ) P-Door Touch Sensor E58-27 (TSW5) - E57-11 (E) Input V - W-B Luggage electrical key switch signal input Luggage electrical key switch off --> on Pulse generation (See waveform 5 (Scheme 44) ) Tr/B-Door Unlock SW E58-11 (CLG6) - E57-11 (E) Output W - W-B Output to No. 2 indoor electrical key antenna assembly (rear floor) Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door opened Door closed Within 30 seconds Pulse generation (See waveform 3 (Scheme 42) ) Over Head + Rear Room (key diagnostic mode) E58-10 (CG6B) - E57-11 (E) Output LG - W-B Output to No. 2 indoor electrical key antenna assembly (rear floor) (terminal on opposite side of component from CLG6 output terminal) Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door opened Door closed Within 30 seconds Pulse generation (See waveform 3 (Scheme 42) ) Over Head + Rear Room (key diagnostic mode) E58-9 (CLG7) - E57-11 (E) Output GR - W-B Output to No. 3 indoor electrical key antenna assembly (inside luggage compartment) Procedure: Door is closed Engine switch off Electrical key transmitter sub-assembly not inside vehicle Driver door lock sensor not touched --> touched Pulse generation (See waveform 8 (Scheme 47) ) Over Head + Luggage (inside) (key diagnostic mode) E58-8 (CG7B) - E57-11 (E) Output B - W-B Output to No. 3 indoor electrical key antenna assembly (inside luggage compartment) (terminal on opposite side of component from CLG7 output terminal) Procedure: Door is closed Engine switch off Electrical key transmitter sub-assembly not inside vehicle Driver door lock sensor not touched --> touched Pulse generation (See waveform 8 (Scheme 47) ) Over Head + Luggage (inside) (key diagnostic mode) E59-19 (POS1) - E57-11 (E) Output Y - W-B Driver door unlock sensor power source (12 V (drops when engine switch turned on (IG))) Engine switch off --> on (IG) 9 to 14 V --> Below 2 V - E59-21 (POS2) - E57-11 (E) Output LG - W-B Front passenger door unlock sensor power source (12 V (drops when engine switch turned on (IG))) Engine switch off --> on (IG) 9 to 14 V --> Below 2 V - E58-5 (RCO) - E57-11 (E) Output V - W-B Output to door control receiver (Power supply for door control receiver. Certification ECU (smart key ECU assembly) outputs 5 V when receiver starts operating.) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle Electrical key transmitter sub-assembly brought outside detection area*2 but kept inside wireless function operational area*3 Lock or unlock switch of electrical key transmitter sub-assembly not pressed --> pressed Pulse generation (See waveform 6 (Scheme 45) ) - E58-17 (RDAM) - E57-11 (E) Input Y - W-B Door control receiver verifies data received from electrical key transmitter sub-assembly. Door control receiver sends data to ECU and intermittently grounds 12 V signal from certification ECU (smart key ECU assembly). Proceed: Engine switch off All doors locked Electrical key transmitter sub-assembly brought outside detection area*2 but kept inside wireless function operational area*3 Lock or unlock switch of electrical key transmitter sub-assembly not pressed --> pressed Pulse generation (See waveform 7 (Scheme 46) ) - E58-6 (CSEL) - E57-11 (E) Output L - W-B Communication channel switching circuit Procedure: Engine switch off All doors closed Below 1 V --> 4.5 to 6 V --> Below 1 V Key diagnostic mode E58-2 (CLG8) - E57-11 (E) Output LG - W-B Output to electrical key antenna (outside luggage compartment) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Luggage electrical key switch off --> on Pulse generation (See waveform 4 (Scheme 43) ) Overhead + Luggage or Luggage + Luggage (key diagnostic mode) E58-1 (CG8B) - E57-11 (E) Output P - W-B Output to electrical key antenna (outside luggage compartment) (terminal on opposite side of component from CLG8 output terminal) Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Luggage electrical key switch off --> on Pulse generation (See waveform 4 (Scheme 43) ) Overhead + Luggage or Luggage + Luggage (key diagnostic mode) *1: For details about the areas that are inside the entry function detection area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) *2: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) *3: For details about the areas that are inside the wireless function operational area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635434-S05584240822014070300000) Using an oscilloscope, check waveform 1. HINT: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown. WAVEFORM 1 (REFERENCE) Item Content Tester Connection E59-12 (CLG1) - E57-11 (E) E59-11 (CLG2) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought inside detection area* All doors locked through wireless operation *: For details about the areas that are inside the entry function detection area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Using an oscilloscope, check waveform 2. HINT: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown. WAVEFORM 2 (REFERENCE) Item Content Tester Connection E59-12 (CLG1) - E57-11 (E) E59-11 (CLG2) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area* All doors locked through wireless operation *: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) WAVEFORM 2 (REFERENCE) Item Content Tester Connection E59-13 (CG1B) - E57-11 (E) E59-10 (CG2B) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Electrical key transmitter sub-assembly not inside vehicle Electrical key transmitter sub-assembly brought outside detection area* All doors locked through wireless operation *: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) Using an oscilloscope, check waveform 3. HINT: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown. *a Door open *b Approximately 30 seconds after door closed WAVEFORM 3 (REFERENCE) Item Content Tester Connection E59-3 (CLG5) - E57-11 (E) E59-2 (CG5B) - E57-11 (E) E58-11 (CLG6) - E57-11 (E) E58-10 (CG6B) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door opened Door closed Within 30 seconds Using an oscilloscope, check waveform 4. HINT: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown. *a Engine switch off, all doors closed and luggage electrical key switch off --> on WAVEFORM 4 (REFERENCE) Item Content Tester Connection E58-2 (CLG8) - E57-11 (E) E58-1 (CG8B) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Luggage electrical key switch off --> on Using an oscilloscope, check waveform 5. HINT: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown. *a In actuality, sampling is being performed WAVEFORM 5 (REFERENCE) Item Content Tester Connection E59-20 (TSW1) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Driver door lock sensor not touched --> touched WAVEFORM 5 (REFERENCE) Item Content Tester Connection E59-8 (TSW2) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Front passenger door lock sensor not touched --> touched WAVEFORM 5 (REFERENCE) Item Content Tester Connection E58-27 (TSW5) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Luggage electrical key switch off --> on WAVEFORM 5 (REFERENCE) Item Content Tester Connection E59-22 (SEN1) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors locked Electrical key transmitter sub-assembly not sufficiently close to vehicle Driver door unlock sensor not touched --> touched WAVEFORM 5 (REFERENCE) Item Content Tester Connection E59-23 (SEN2) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors locked Electrical key transmitter sub-assembly not sufficiently close to vehicle Front passenger door unlock sensor not touched --> touched Using an oscilloscope, check waveform 6. HINT: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown. *a Before lock or unlock switch of electrical key transmitter sub-assembly pressed *b After lock or unlock switch of electrical key transmitter sub-assembly pressed WAVEFORM 6 (REFERENCE) Item Content Tester Connection E58-5 (RCO) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle Electrical key transmitter sub-assembly brought outside detection area*1 but kept inside wireless function operational area*2 Lock or unlock switch of electrical key transmitter sub-assembly not pressed --> pressed *1: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) *2: For details about the areas that are inside the wireless function operational area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635434-S05584240822014070300000) Using an oscilloscope, check waveform 7. HINT: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown. *a Before lock or unlock switch of electrical key transmitter sub-assembly pressed *b After lock or unlock switch of electrical key transmitter sub-assembly pressed WAVEFORM 7 (REFERENCE) Item Content Tester Connection E58-17 (RDAM) - E57-11 (E) Tool Setting 5 V/DIV., 500 ms/DIV. Condition Procedure: Engine switch off All doors locked Electrical key transmitter sub-assembly brought outside detection area*1 but kept inside wireless function operational area*2 Lock or unlock switch of electrical key transmitter sub-assembly not pressed --> pressed *1: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635436-S12811079872014070300000) *2: For details about the areas that are inside the wireless function operational area, refer to Operation Check. Refer to «OPERATION CHECK [08/2013 - ]»(ref-635434-S05584240822014070300000) Using an oscilloscope, check waveform 8. HINT: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown. *a Before driver door lock sensor touched *b After driver door lock sensor touched WAVEFORM 8 (REFERENCE) Item Content Tester Connection E58-9 (CLG7) - E57-11 (E) E58-8 (CG7B) - E57-11 (E) Tool Setting 2 V/DIV., 500 ms/DIV. Condition Proceed: Door is closed Engine switch off Electrical key transmitter sub-assembly not inside vehicle Driver door lock sensor not touched --> touched
2. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *A Main Body ECU (Multiplex Network Body ECU) with 2 Connectors - - *1 Main Body ECU (Multiplex Network Body ECU) - - *a 2 Connectors - - *A Main Body ECU (Multiplex Network Body ECU) with 1 Connector - - *1 Main Body ECU (Multiplex Network Body ECU) - - *a 1 Connector - - Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly. Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item MB-11 (GND1) - Body ground - - Ground Always Below 1 ohms - MB-30 (BECU) - Body ground Input - Battery power supply (for CPU) Always 11 to 14 V - MB-29 (ACC) - Body ground Input - ACC power supply Engine switch on (ACC) 11 to 14 V ACC SW MB-32 (IG) - Body ground Input - IG power supply Engine switch on (IG) 11 to 14 V IG SW If the result is not as specified, there may be a malfunction in the wire harness. Install the main body ECU (multiplex network body ECU) to the driver side junction block assembly. Measure the voltage and check for pulses according to the value(s) in the table below. Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item E31-7 (LSFL) - Body ground Input Y - Body ground Front door LH unlock detection switch input Front door LH locked --> unlocked Pulse generation (See waveform 1 (Scheme 50) ) FL Door Lock Pos E31-18 (LSFR) - Body ground Input LG - Body ground Front door RH unlock detection switch input Front door RH locked --> unlocked Pulse generation (See waveform 1 (Scheme 50) ) FR Door Lock Pos 3E-24 (LSR) - Body ground Input Y - Body ground Rear door LH unlock detection switch input Engine switch off, all doors closed and rear door LH locked --> unlocked Pulse generation (See waveform 1 (Scheme 50) ) RL-Door Lock Pos SW 3E-39 (LSR) - Body ground Input Y - Body ground Rear door RH unlock detection switch input Engine switch off, all doors closed and rear door RH locked --> unlocked Pulse generation (See waveform 1 (Scheme 50) ) RR-Door Lock Pos SW 3E-34 (FLCY) - Body ground Input W - Body ground Front door LH courtesy light switch input Front door LH closed --> open Pulse generation (See waveform 2 (Scheme 51) ) FL Door Courtesy SW E31-19 (FRCY) - Body ground Input V - Body ground Front door RH courtesy light switch input Front door RH closed --> open Pulse generation (See waveform 2 (Scheme 51) ) FR Door Courtesy SW E31-1 (LCTY) - Body ground Input SB - Body ground Rear door LH courtesy light switch input Rear door LH closed --> open Pulse generation (See waveform 2 (Scheme 51) ) RL Door Courtesy SW E31-6 (RCTY) - Body ground Input LG - Body ground Rear door RH courtesy light switch input Rear door RH closed --> open Pulse generation (See waveform 2 (Scheme 51) ) RR Door Courtesy SW 3E-38 (LGCY) - Body ground Input LG - Body ground Luggage door courtesy light switch input Luggage compartment door closed --> opened Pulse generation (See waveform 2 (Scheme 51) ) Luggage Courtesy SW If the result is not as specified, the main body ECU (multiplex network body ECU) or driver side junction block assembly may be malfunctioning. Using an oscilloscope, check waveform 1. NOTE: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown. WAVEFORM 1 (REFERENCE) Item Content Tester Connection E31-7 (LSFL) - Body ground E31-18 (LSFR) - Body ground 3E-24 (LSR) - Body ground 3E-39 (LSR) - Body ground Tool Setting 2 V/DIV., 200 ms/DIV. Condition Door locked --> unlocked *a Door locked *b Door unlocked Using an oscilloscope, check waveform 2. NOTE: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown. WAVEFORM 2 (REFERENCE) Item Content Tester Connection 3E-34 (FLCY) - Body ground E31-19 (FRCY) - Body ground E31-1 (LCTY) - Body ground E31-6 (RCTY) - Body ground 3E-38 (LGCY) - Body ground Tool Setting 2 V/DIV., 200 ms/DIV. Condition Door closed --> opened *a Door closed *b Door open

DIAGNOSIS SYSTEM [08/2013 - ]

1. DESCRIPTION Smart key system (for Entry Function) data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the smart key system. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
2. CHECK DLC3 Check the DLC3. Refer to «GENERAL INFORMATION [08/2013 - ]»(ref-635429-S24386271762014070300000)
3. INSPECT BATTERY VOLTAGE Measure the vehicle battery voltage. Standard Voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the vehicle battery.

DTC CHECK / CLEAR [08/2013 - ]

1. CHECK FOR DTC HINT: When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Trouble Codes. Body Electrical > Smart Key > Trouble Codes Read the DTCs.
2. CLEAR DTC HINT: When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Trouble Codes. Body Electrical > Smart Key > Clear DTCs Clear the DTCs.

Scheme 52

1. DATA LIST 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. HINT: Using the 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. When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key, Main Body, Power Source Control or Combination Meter / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Smart Key > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note D-Door Touch Sensor Driver door touch sensor (unlock sensor)*1 OFF or ON OFF: Driver door touch sensor (unlock sensor) not touched ON: Driver door touch sensor (unlock sensor) touched Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate. P-Door Touch Sensor Front passenger door touch sensor (unlock sensor)*1 OFF or ON OFF: Front passenger door touch sensor (unlock sensor) not touched ON: Front passenger door touch sensor (unlock sensor) touched Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate. D-Door Trigger Switch Driver door touch sensor (lock sensor)*1 OFF or ON OFF: Driver door touch sensor (lock sensor) not touched ON: Driver door touch sensor (lock sensor) touched Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate. P-Door Trigger Switch Front passenger door touch sensor (lock sensor)*1 OFF or ON OFF: Front passenger door touch sensor (lock sensor) not touched ON: Front passenger door touch sensor (lock sensor) touched Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate. Tr/B-Door Unlock SW Luggage electrical key switch OFF or ON OFF: Luggage electrical key switch not pushed ON: Luggage electrical key switch pushed Displays whether the luggage electrical key switch is on or off. Use this Data List item to help determine if there is a switch malfunction when the luggage compartment open function does not operate. Ignition Switch Engine switch on (IG) OFF or ON OFF: Engine switch off ON: Engine switch on (IG) Displays whether the IG power source signal input is on or off. Use this Data List item to help determine the cause when all smart key system/wireless functions do not operate. If the electrical key transmitter sub-assembly is brought inside the vehicle and the engine switch is pressed twice without depressing the brake pedal*2 or clutch pedal*3, the engine switch will turn on (IG). At this time, the key ID code transmitted from the electrical key transmitter sub-assembly and the key ID code stored in the certification ECU (smart key ECU assembly) are compared, and the S code stored in the certification ECU (smart key ECU assembly) and the code stored in the ID code box (immobilizer code ECU) are compared, and if all codes match, the power source mode is considered on (IG) at that time. Unmatched Vehicle-ID Key No. (incorrect or correct) No or Yes No: Communication normal Yes: Communication malfunction The vehicle ID registered in the vehicle and the vehicle ID registered in the electrical key transmitter sub-assembly are different (if a key from another vehicle is brought into the vehicle exterior detection area while the doors are locked, "Yes" is displayed for "Unmatched Vehicle-ID" in the Data List). Other potential causes: An electrical key transmitter sub-assembly from a different vehicle is being used. A communication error due to wave interference. The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning. No Response Communication response No or Yes No: Communication normal Yes: Communication malfunction The vehicle IDs registered in the vehicle and electrical key transmitter sub-assembly match, but there is no response from the electrical key transmitter sub-assembly. (If the electrical key transmitter sub-assembly is not in the detection area or the transmitter battery is depleted resulting in a matching code not being detected when a lock switch or the engine switch is pressed, etc., "Yes" is displayed for "No Response" in the Data List. If there is wave interference in the LF band that the vehicle uses for transmission or the RF band that the electrical key transmitter sub-assembly uses for transmission, "Yes" may be displayed for "No Response" in the Data List.) Other potential causes: An electrical key transmitter sub-assembly from a different vehicle is being used. The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning. Unmatch Code or Form Code format (incorrect or correct) No or Yes No: Communication normal Yes: Communication malfunction There is an error in the data sent from the electrical key transmitter sub-assembly (if there is wave interference in the RF band that the electrical key transmitter sub-assembly uses for transmission, "Yes" may be displayed for "Unmatch Code or Form", "No Response", "ID Code Difference(Resp)" and "C Code Difference" in the Data List). Other potential causes: An electrical key transmitter sub-assembly from a different manufacturer is being used. The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning. Key Low Battery Transmitter battery depleted No or Yes No: Transmitter battery not depleted Yes: Transmitter battery depleted The electrical key transmitter sub-assembly sends voltage information to the certification ECU (smart key ECU assembly) when it is transmitting. The certification ECU (smart key ECU assembly) displays "Yes" for the "Key Low Battery" item of the Data List when this voltage information indicates 2.2 V or less. This Data List item should be checked when the electrical key transmitter sub-assembly is at room temperature (example: at -20°C (-4°F), "Yes" may be displayed even if the transmitter battery is new). Power Save Cnt 10 Min. Number of times power saving control is activated due to electrical key transmitter sub-assembly being in detection area for 10 minutes or more 0 to 255 Within range of 0 to 255 If the electrical key transmitter sub-assembly is in a vehicle exterior detection area, communication is frequently performed between the vehicle and electrical key transmitter sub-assembly, resulting in an increase in transmitter battery power consumption. To prevent the transmitter battery from becoming fully depleted, if the electrical key transmitter sub-assembly is left in the detection area for 10 minutes or more, the smart key system automatically deactivates the exterior detection area the electrical key transmitter sub-assembly is in. If the doors are locked/unlocked with a wireless operation or by the mechanical key, the system resumes operation. Power Save Cnt 5 Days Number of times power saving control 1 (vehicle exterior periodic signal transmission stop) is activated due to engine not being started for 5 days or more 0 to 255 Within range of 0 to 255 - Power Save Cnt 14 Days Number of times power saving control 2 (lock/unlock sensor of front door outside handle assembly of front passenger door disabled) is activated due to engine not being started for 14 days or more 0 to 255 Within range of 0 to 255 - # Codes Number of trouble codes 0 to 255 Number of stored DTCs displayed - ID Code Difference(Resp) ID code (incorrect or correct) No or Yes No: Communication normal Yes: Communication malfunction The ID code registered in the vehicle and the ID code registered in the electrical key transmitter sub-assembly are different (if there is wave interference in the RF band that the electrical key transmitter sub-assembly uses for transmission, "Yes" may be displayed for "Unmatch Code or Form", "No Response", "ID Code Difference(Resp)" and "C Code Difference" in the Data List). Other potential causes: An electrical key transmitter sub-assembly from a different vehicle is being used. The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning. C Code Difference Challenge code (incorrect or correct) No or Yes No: Communication normal Yes: Communication malfunction The electrical key transmitter sub-assembly sends a response code in response to the challenge code from the vehicle, but the response code is incorrect (if there is wave interference in the RF band that the electrical key transmitter sub-assembly uses for transmission, "Yes" may be displayed for "Unmatch Code or Form", "No Response", "ID Code Difference(Resp)" and "C Code Difference" in the Data List). Other potential causes: The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning. ID Code Difference Wireless ID code (incorrect or correct) No or Yes No: Communication normal Yes: Communication malfunction The ID code registered in the vehicle and the ID code registered in the electrical key transmitter sub-assembly are different. (If a wireless ID other than those for any of the registered electrical key transmitter sub-assemblies is detected, "Yes" is displayed for "ID Code Difference" in the Data List. If a wireless signal from the electrical key transmitter sub-assembly of another vehicle is detected, "Yes" is displayed for "ID Code Difference(Resp)" in the Data List.) Other potential causes: An electrical key transmitter sub-assembly from a different vehicle is being used. A communication error due to external noise (RF). The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning. Immobilizer when IG=ON Immobilizer system status when power source mode on (IG) UNSET or SET UNSET: Immobilizer system unset (engine switch on (ACC) or on (IG)) SET: Immobilizer system set (engine switch off) - Immobilizer Immobilizer system status determined by certification ECU Set or Unset Set: Immobilizer set (engine start prohibited) (engine switch off) Unset: Immobilizer unset (engine start permitted) (engine switch on (ACC) or on (IG)) When the immobilizer system does not change to the unset state, this item can be used to determine if the cause is the certification ECU or ID code box. Different Rolling Code Rolling code (incorrect or correct) No or Yes No: Communication normal Yes: Communication malfunction The rolling code registered in the vehicle and the rolling code registered in the electrical key transmitter sub-assembly are different Other potential causes: An electrical key transmitter sub-assembly switch is pressed 100 times or more in a location where the radio waves cannot reach the vehicle. A communication error due to external noise (RF). The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning. S Code Check S code verification result OK or NG OK: S code verification result normal NG: S code verification result abnormal Problems may be caused by the following: Registration has not been performed for the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU). Malfunctions in the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU). L Code Check L code verification result OK or NG OK: L code verification result normal NG: L code verification result abnormal Problems may be caused by the following: Registration has not been performed for the ID code box (immobilizer code ECU) or steering lock ECU (steering lock actuator assembly). Malfunctions in the ID code box (immobilizer code ECU) or steering lock ECU (steering lock actuator assembly). Unlock Request Receive Status of steering unlock command from certification ECU (smart key ECU assembly) OK or NG OK: Certification ECU (smart key ECU assembly) sends steering unlock command (within 10 seconds of engine switch turned on (ACC) or on (IG), or engine start operation performed) NG: Certification ECU (smart key ECU assembly) does not send steering unlock command (engine switch not turned on (ACC) or on (IG), and engine start operation not performed) - Lock Request Receive Status of steering lock command from certification ECU (smart key ECU assembly) OK or NG OK: Certification ECU (smart key ECU assembly) sends steering lock command (within 10 seconds of any door opened with shift lever in P*2 and engine switch off) NG: Certification ECU (smart key ECU assembly) does not send steering lock command (no door opened with shift lever in P*2 and engine switch off) - S Code Check(Past) S code verification result (past) OK or NG(Past) OK: Verification result normal (past) NG(Past): Verification result abnormal (past) - L Code Check(Past) L code verification result (past) OK or NG(Past) OK: Verification confirmed (past) NG(Past): Verification not confirmed (past) - Steering Lock State of whether steering lock ECU (steering lock actuator assembly) has determined steering is locked Unset or Set Unset: Steering unlocked Set: Steering locked - Steering Unlock State of whether steering lock ECU (steering lock actuator assembly) determined steering is unlocked Unset or Set Unset: Steering locked Set: Steering unlocked - Door Unlock Mode2 Door unlock mode All or Driver Customize setting status displayed - Ignition Available Area Ignition available area Front or All Customize setting status displayed - Parking Wait Time Parking wait time 0.5s, 1.5s, 2.5s or 5s Customize setting status displayed - Trunk Open Mode Luggage compartment door opening operation OFF or ON Customize setting status displayed - Touch Activation Over Threshold Consecutive entry lock operation Active or Not Active Customize setting status displayed - Wireless Signal Encryption Support Wireless signal encryption support No or Yes No: Wireless signal encryption not supported Yes: Wireless signal encryption supported - Key Low Battery Warning Low transmitter battery warning OFF or ON Customize setting status displayed - Engine Start Indicator Key warning light lights OFF or ON Customize setting status displayed - Number of Registered Key Codes Number of registered electrical key transmitter sub-assembly 0 to 8 Number of registered electrical key transmitter sub-assembly Up to 7 electrical key transmitter sub-assemblies can be registered Short in Fr P Side Door Oscillators Circuit (Hist) Short in front passenger door electrical key antenna circuit (history) OK or NG(Hist) OK: Front passenger door electrical key antenna circuit was normal NG(Hist): Front passenger door electrical key antenna circuit was abnormal - Short in D Side Door Oscillators Circuit (Hist) Short in driver door electrical key antenna circuit (history) OK or NG(Hist) OK: driver door electrical key antenna circuit was normal NG(Hist): driver door electrical key antenna circuit was abnormal - Short in Front P Side Door Oscillators Circuit Short in front passenger door electrical key antenna circuit OK or NG OK: Front passenger door electrical key antenna circuit is normal NG: Front passenger door electrical key antenna circuit is abnormal - Short in Driver Side Door Oscillators Circuit Short in driver door electrical key antenna circuit OK or NG OK: driver door electrical key antenna circuit is normal NG: driver door electrical key antenna circuit is abnormal - *1: Data from an actual vehicle provided for reference. *2: except Manual Transaxle *3: for Manual Transaxle HINT: *1: With engine switch off, all doors closed, electrical key transmitter sub-assembly not inside vehicle and all doors locked, front door outside handle assembly (unlock sensor) touched. *2: Approximately 150 ms. *3: With engine switch off, all doors closed, electrical key transmitter sub-assembly not inside vehicle and all doors unlocked, front door outside handle assembly (lock sensor) touched. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note ACC SW Engine switch status OFF or ON OFF: Engine switch off ON: Engine switch on (ACC) "ON" is displayed even though the engine switch is on (IG). IG SW Engine switch status OFF or ON OFF: Engine switch off ON: Engine switch on (IG) "OFF" is displayed even though the engine switch is on (ACC). RR Door Courtesy SW Rear door RH courtesy light switch OFF or ON OFF: Rear door RH closed ON: Rear door RH open - RL Door Courtesy SW Rear door LH courtesy light switch OFF or ON OFF: Rear door LH closed ON: Rear door LH open - FR Door Lock Pos Front door RH unlock detection switch signal LOCK or UNLOCK LOCK: Front door RH locked UNLOCK: Front door RH unlocked - FR Door Courtesy SW Front door RH courtesy light switch signal OFF or ON OFF: Front door RH closed ON: Front door RH open - FL Door Lock Pos Front door LH unlock detection switch signal LOCK or UNLOCK LOCK: Front door LH locked UNLOCK: Front door LH unlocked - FL Door Courtesy SW Front door LH courtesy light switch signal OFF or ON OFF: Front door LH closed ON: Front door LH open - RR-Door Lock Pos SW Rear door RH and LH unlock detection switch signal OFF or ON OFF: Rear door RH and LH locked ON: Rear door RH or LH unlocked - RL-Door Lock Pos SW Rear door RH and LH unlock detection switch signal OFF or ON OFF: Rear door RH and LH locked ON: Rear door RH or LH unlocked - Luggage Courtesy SW Luggage compartment door lock courtesy light switch signal OFF or ON OFF: Luggage compartment door closed ON: Luggage compartment door open - Wireless Control Wireless door lock function OFF or ON Customize setting status displayed - Hazard Answer Back Hazard answer-back of entry function OFF or ON Customize setting status displayed - Wireless Auto Lock Auto lock function OFF or ON Customize setting status displayed - Open Door Warning Open door warning OFF or ON Customize setting status displayed - Auto Lock Time Automatic lock time 30 s, 60s, or 120s Customize setting status displayed - Wireless Buzzer Resp Wireless buzzer answer-back of entry function OFF or ON Customize setting status displayed - Wireless Buzzer Vol Wireless buzzer volume Level7, Level6, Level5, Level4, Level3, Level2, Level1 or Level0 Customize setting status displayed - Body Electrical > Power Source Control > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Shift P Signal Shift position P* OFF or ON OFF: Shift lever not in P ON: Shift lever in P Use this item to determine if the shift position switch is malfunctioning. The engine cannot be started when this item is OFF. Steering Unlock Switch State of steering unlock sensor signal output from steering lock actuator assembly OFF or ON OFF: Steering locked ON: Steering unlocked When the shift lever is in P* and the engine switch is off, if any door is opened then closed, the steering is locked. When the key is in the cabin and the engine switch is turned on (ACC) or on (IG), the steering unlocks. The engine cannot be started when the steering unlock sensor signal is OFF. Stop Light Switch1 State of brake pedal* OFF or ON OFF: Brake pedal released ON: Brake pedal depressed Use this item to determine whether the stop light switch is malfunctioning. The engine cannot be started when this item is OFF. When this item is malfunctioning, the engine can be started by pressing and holding the engine switch for a certain period of time. Start Switch1 Engine switch 1 status OFF or ON OFF: Engine switch not pressed ON: Engine switch pressed If the engine switch is pressed for a short time, the display may not change. Use this item to determine whether the engine switch input signal is malfunctioning. Start Switch2 Engine switch 2 status OFF or ON OFF: Engine switch not pressed ON: Engine switch pressed Backup for Start Switch 1. However, when the engine switch is pressed and held, the control functions only when both Start Switch 1 and 2 are normal. Behaves the same way as Start Switch 1. Vehicle Speed Signal Vehicle being driven or stopped Stop or Run Stop: Vehicle stopped Run: Vehicle being driven at 5 km/h (3.11 mph) or more - Power Supply Condition Power supply state All OFF, ACC ON, IG1 ON, IG2 ON or ST ON ALL OFF: Engine switch off (ACC and IG) ACC ON: Engine switch on (ACC) (ACC relay on) IG1 ON: Engine switch on (IG) (IG1 relay on) IG2 ON: Engine switch on (IG) (IG2 relay on) ST ON: Sending engine start request signal Since the IG1 and IG2 relays turn on at approximately the same time, IG1 ON may not be displayed (the IG1 relay turns on for a very short time). *: except Manual Transaxle Body Electrical > Combination Meter > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Vehicle Speed Meter Vehicle speed 0 to 255 Almost the same as actual vehicle speed
2. ACTIVE TEST HINT: Using the 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. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key or Main Body / Active Test. Perform Active Test according to the display on the Techstream. Body Electrical > Smart Key > Active Test Tester Display Measurement Item Control Range Diagnostic Note Overhead Tuner Power Supply ON Door control receiver OFF/ON - Power for P-Seat Sens Front door outside handle (for front passenger door) OFF/ON - Multi Channel SW Door control receiver CH1/CH2 - Body Electrical > Main Body > Active Test Tester Display Measurement Item Control Range Diagnostic Note Door Lock Door lock motor Unlock/Lock/OFF - D-Door Unlock Driver door lock motor OFF/ON - Trunk and Back-Door Open Operate luggage compartment door lock motor OFF/ON - Wireless Buzzer Wireless door lock buzzer OFF/ON

DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]

SMART KEY SYSTEM (FOR ENTRY FUNCTION)