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

PROBLEM SYMPTOMS TABLE [08/2013 - ]

HINT

1. 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.
2. Inspect the fuses and relays related to the system before inspecting the suspected areas below.
3. If the problem occurs in certain locations or times of day, the possibility of wave interference is high.
4. If a malfunction occurred after optional components were installed at the dealer, check if there is wave interference from the components.

SMART KEY SYSTEM (FOR START FUNCTION)

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1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Disconnect the E59 and E57 certification ECU (smart key ECU assembly) connectors. 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 E57-7 (STA) - Body ground Input G - Body ground When starting the engine, this monitors the voltage sent from terminal STAR to the starter relay to judge whether the engine is "being started". 20°C (68°F) 98 to 146 ohms - E57-5 (STAR) - Body ground*1 Input/Output W - Body ground Outputs voltage to the starter relay Outputs voltage (12 V) to the starter relay when starting the engine. (Max. 30 sec. Turns off when an engine speed of 500 RPM or more continues for 500 ms or more.) Shift lever in any position other than P or N --> shift lever in P or N (at 20°C (68°F)) 30 kohms or higher --> 98 to 146 ohms - Receives park/neutral position switch assembly (P, N position detection) signal Monitors whether the park/neutral position switch assembly is on (P or N) or off (other than P or N). Applies voltage via a resistor (large) in the certification ECU (smart key ECU assembly). When the park/neutral position switch assembly is on, due to the starter relay coil resistance (small) using some of the voltage, the voltage at terminal STAR will be low (2.7 V or less), and when the park/neutral position switch assembly is off, the voltage will be high (9 V or more). Perform the following operation except while the engine is cranking: Shift lever in any position other than P or N --> shift lever in P or N (at 20°C (68°F)) 30 kohms or higher --> 98 to 146 ohms Neutral SW/ Clutch SW E57-5 (STAR) - Body ground*2 Input/Output W - Body ground Outputs voltage to the starter relay Outputs voltage (12 V) to the starter relay when starting the engine. (Max. 30 sec. Turns off when an engine speed of 500 RPM or more continues for 500 ms or more.) Clutch pedal released --> Clutch pedal depressed 30 kohms or higher --> 98 to 146 ohms - Receives clutch start switch signal Monitors whether the clutch start switch is on (clutch pedal depressed) or off (clutch pedal released). Applies voltage via a resistor (large) in the certification ECU (smart key ECU assembly). When the clutch start switch is on, due to the starter relay coil resistance (small) using some of the voltage, the voltage at terminal STAR will be low (2.7 V or less), and when the clutch start switch is off, the voltage will be high (9 V or more). Perform the following operation except while the engine is cranking: Clutch pedal released -->Clutch pedal depressed 30 kohms or higher --> 98 to 146 ohms Neutral SW/ Clutch SW E57-16 (NE) - Body ground Input L - Body ground Engine speed signal Always 10 kohms or higher Engine Condition E57-9 (IG2D) - Body ground Output GR - Body ground IG2 signal 20°C (68°F) 134 to 200 ohms IG2 Relay Monitor(Outside) E57-18 (STP1) - Body ground Input P - Body ground Stop light switch signal Brake pedal depressed --> Brake pedal released 9 V or higher --> 1 V or less Stop Light Switch1 E57-2 (+B) - E57-11 (E) Input L - W-B Power source Always 11 to 14 V - E59-26 (SLP) - E57-11 (E) Input G - W-B Steering lock position signal Always 10 kohms or higher Steering Unlock Switch E57-11 (E) - Body ground - W-B - Body ground GND Always Below 1 ohms - E59-30 (SSW2) - Body ground Input B - Body ground SSW2 contact signal HINT: Backup for SSW1. Behaves the same way as SSW1. Engine switch pushed --> Engine switch not pushed Below 1 ohms --> 10 kohms or higher Start Switch2 E59-28 (SSW1) - Body ground Input SB - Body ground SSW1 contact signal Engine switch pushed --> Engine switch not pushed Below 1 ohms --> 10 kohms or higher Start Switch1 E59-4 (ACCD) - Body ground Output B - Body ground ACC signal 20°C (68°F) 160 to 240 ohms ACC Relay Monitor E59-6 (IG1D) - Body ground Output G - Body ground IG1 signal 20°C (68°F) 53 to 80 ohms IG1 Relay Monitor(Outside) E57-10 (CUTB) - E57-11 (E) Input LG - W-B Dark current cut pin*3 Always 11 to 14 V - E59-27 (SPD) - Body ground Input V - Body ground Vehicle speed signal Always 30 kohms or higher Vehicle Speed Signal *1: except Manual Transaxle *2: for Manual Transaxle *3: 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 electric waves every 0.25 seconds. that form the detection area stops). Reconnect the E59 and E57 certification ECU (smart key ECU assembly) connectors. 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 E57-7 (STA) - E57-11 (E) Input G - W-B When starting the engine, this monitors the voltage sent from terminal STAR to the starter relay to judge whether the engine is "being started". With the brake pedal depressed, the engine switch is pressed and held (starter on) --> After approx. 1 sec. has elapsed, the engine switch is released (starter off)*1 9.5 V or higher*3 --> 1 V or less - With the clutch pedal depressed, the engine switch is pressed and held (starter on) --> After approx. 1 sec. has elapsed, the engine switch is released (starter off)*2 E57-5 (STAR) - E57-11 (E)*1 Input/Output W - W-B Outputs voltage to the starter relay Outputs voltage (12 V) to the starter relay when starting the engine. (Max. 30 sec. Turns off when an engine speed of 500 RPM or more continues for 500 ms or more.) HINT: When Hi is selected, a start request signal (STAR) will not be output even though a start request signal (STSW) is input. With the brake pedal depressed, the engine switch is pressed and held --> After approx. 1 sec. has elapsed, the engine switch is released 9.5 V or higher*3 --> 1 V or less - Receives park/neutral position switch assembly (P, N position detection) signal Monitors whether the park/neutral position switch assembly is on (P or N) or off (other than P or N). Applies voltage via a resistor (large) in the certification ECU (smart key ECU assembly). When the park/neutral position switch assembly is on, due to the starter relay coil resistance (small) using some of the voltage, the voltage at terminal STAR will be low (2.7 V or less), and when the park/neutral position switch assembly is off, the voltage will be high (9 V or more). Perform the following operation except while the engine is cranking: Shift lever in any position other than P or N --> shift lever in P or N (at 20°C (68°F)) 9 V or higher --> 2.7 V or less Neutral SW/ Clutch SW E57-5 (STAR) - E57-11 (E)*2 Input/Output W - W-B Outputs voltage to the starter relay Outputs voltage (12 V) to the starter relay when starting the engine. (Max. 30 sec. Turns off when an engine speed of 500 RPM or more continues for 500 ms or more.) HINT: When Hi is selected, a start request signal (STAR) will not be output even though a start request signal (STSW) is input. With the clutch pedal depressed, the engine switch is pressed and held --> After approx. 1 sec. has elapsed, the engine switch is released 9.5 V or higher*3 --> 1 V or less - Receives clutch start switch signal Monitors whether the clutch start switch is on (clutch pedal depressed) or off (clutch pedal released). Applies voltage via a resistor (large) in the certification ECU (smart key ECU assembly). When the clutch start switch is on, due to the starter relay coil resistance (small) using some of the voltage, the voltage at terminal STAR will be low (2.7 V or less), and when the clutch start switch is off, the voltage will be high (9 V or more). Perform the following operation except while the engine is cranking: Clutch pedal released --> Clutch pedal depressed 9 V or higher --> 2.7 V or less Neutral SW/ Clutch SW E57-16 (NE) - E57-11 (E) Input L - W-B Engine speed signal Idling (engine warmed up) Pulse generation (See waveform 1 (Scheme 79) ) Engine Condition E57-9 (IG2D) - E57-11 (E) Output GR - W-B IG2 signal Engine switch on (ACC) --> Engine switch on (IG) 1 V or less --> 9 V or higher IG2 Relay Monitor(Outside) E57-18 (STP1) - E57-11 (E) Input P - W-B Stop light switch signal Brake pedal released --> Brake pedal depressed 1 V or less --> 9 V or higher Stop Light Switch1 E59-26 (SLP) - E57-11 (E) Input G - W-B Steering lock position signal Steering locked --> Steering unlocked*4 11 to 14 V --> 1.2 V or less Steering Unlock Switch E59-29 (SLR+) - E57-11 (E) Output P - W-B Steering lock motor operation command signal (Steering lock motor operation permission signal sent from the certification ECU (smart key ECU assembly)) Steering lock motor stopped --> Steering lock motor operating --> Steering lock motor stopped*5 Pulse generation (See waveform 2 (Scheme 80) ) - E59-25 (P) - E57-11 (E)*1 Input R - W-B P position signal Shift lever in P --> Shift lever not in P 9 V or higher --> 1.5 V or less Shift P Signal E59-30 (SSW2) - E57-11 (E) Input B - W-B SSW2 contact signal HINT: Backup for SSW1. Behaves the same way as SSW1. Engine switch not pushed --> Engine switch pushed 9 V or higher --> 1 V or less Start Switch2 E59-28 (SSW1) - E57-11 (E) Input SB - W-B SSW1 contact signal Engine switch not pushed --> Engine switch pushed 9 V or higher --> 1 V or less Start Switch1 E59-4 (ACCD) - E57-11 (E) Output B - W-B ACC signal Engine switch off --> Engine switch on (ACC) 1 V or less --> 8.5 V or higher ACC Relay Monitor E59-6 (IG1D) - E57-11 (E) Output G - W-B IG1 signal Engine switch on (ACC) --> Engine switch on (IG) 1 V or less --> 9 V or higher IG1 Relay Monitor(Outside) E59-27 (SPD) - E57-11 (E) Input V - W-B Vehicle speed signal Vehicle being driven at approx. 5 km/h (3 mph) Pulse generation (See waveform 3 (Scheme 81) ) Vehicle Speed Signal HINT: *1: except Manual Transaxle *2: for Manual Transaxle *3: While the engine is cranking, the battery voltage may drop to approximately 6 V. *4: When the engine switch is turned off with the shift lever in P (except Manual Transaxle) and any of the doors are opened or closed, the steering will be locked. When the engine switch is turned on (ACC) or on (IG), the steering will be unlocked. *5: To check the waveform of the steering lock motor while it is operating, perform the following operations: To operate the steering lock motor to lock the steering, open a door with the engine switch off and the shift lever in P (except Manual Transaxle). To operate the steering lock motor to unlock the steering, bring the electrical key transmitter sub-assembly into the cabin and turn the engine switch on (ACC) or on (IG). Using an oscilloscope, check the waveform of the ECU. NOTE: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown. Waveform 1 Item Content Tester Connection E57-16 (NE) - E57-11 (E) Tool Setting 2 V/DIV., 2 ms./DIV. Vehicle Condition Idling (engine warmed up) HINT: The wavelength becomes shorter as the engine speed increases. Waveform 2 *a Steering lock motor not operating *b Steering lock motor operating Item Content Tester Connection E59-29 (SLR+) - E57-11 (E) Tool Setting 2 V/DIV., 200 ms./DIV. Vehicle Condition Steering lock motor stopped --> Steering lock motor operating --> Steering lock motor stopped* HINT: *: To check the waveform of the steering lock motor while it is operating, perform the following operations: To operate the steering lock motor to lock the steering, open a door with the engine switch off and the shift lever in P (except Manual Transaxle). To operate the steering lock motor to unlock the steering, bring the electrical key transmitter sub-assembly into the cabin and turn the engine switch on (ACC) or on (IG). Waveform 3 Item Content Tester Connection E59-27 (SPD) - E57-11 (E) Tool Setting 5 V/DIV., 20 ms./DIV. Vehicle Condition Vehicle being driven at approx. 5 km/h (3 mph) HINT: The wavelength becomes shorter as the vehicle speed increases.

DIAGNOSIS SYSTEM [08/2013 - ]

1. DESCRIPTION Smart key system (for start function) data and the Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. 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 battery voltage. Standard Voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the battery.

DTC CHECK / CLEAR [08/2013 - ]

Note. 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 Model Code "KEY REGIST" 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.

1. CHECK FOR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (POWER SOURCE CONTROL)) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Power Source Control / Trouble Codes. Body Electrical > Power Source Control > Trouble Codes Check for DTCs.
2. CHECK FOR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (STARTING CONTROL)) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Starting Control / Trouble Codes. Body Electrical > Starting Control > Trouble Codes Check for DTCs.
3. CHECK FOR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (SMART KEY)) 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 Check for DTCs.
4. CLEAR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (POWER SOURCE CONTROL)) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Power Source Control / Trouble Codes. Body Electrical > Power Source Control > Clear DTCs Clear the DTCs by following the directions on the Techstream display.
5. CLEAR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (STARTING CONTROL)) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Starting Control / Trouble Codes. Body Electrical > Starting Control > Clear DTCs Clear the DTCs by following the directions on the Techstream display.
6. CLEAR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (SMART KEY)) 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 by following the directions on the Techstream display.

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1. DATA LIST 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. 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. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / (desired system) / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Power Source Control > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Shift P Signal Shift position P* ON or OFF ON: Shift lever in P OFF: Shift lever not 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 ECU (steering lock actuator assembly) ON or OFF ON: Steering unlocked OFF: Steering locked When the shift lever is in P* and the engine switch is off, if any door is opened or closed, the steering is locked. When the electrical key transmitter sub-assembly is inside the vehicle and the engine switch is turned on (ACC) or on (IG), the steering unlocks. The engine cannot be started when the steering unlock signal is off. Stop Light Switch1 State of brake pedal ON or OFF ON: Brake pedal depressed OFF: Brake pedal released 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 ON or OFF ON: Engine switch pressed OFF: Engine switch not 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 ON or OFF ON: Engine switch pressed OFF: Engine switch not pressed Backup for engine switch 1. However, when the engine switch is pressed and held, the control functions only when both engine switch 1 and 2 are normal. Behaves the same way as engine switch 1. Neutral SW/ Clutch SW except Manual Transaxle: Shift position (P and N) for Manual Transaxle: State of clutch pedal ON or OFF except Manual Transaxle: ON: Shift lever in P or N OFF: Shift lever in any position other than P or N for Manual Transaxle: ON: Clutch pedal depressed OFF: Clutch pedal released except Manual Transaxle: Use this item to determine whether the park/neutral position switch assembly is malfunctioning. When the engine cannot be started due to a park/neutral position switch assembly malfunction, OFF is displayed. for Manual Transaxle: Use this item to help determine if the clutch start switch assembly is malfunctioning. The engine cannot be started when this item is OFF. Latch Circuit Status of IG related backup circuits ON or OFF ON: Engine switch on (IG) OFF: Engine switch off Displays in almost the same manner as the IG1 and IG2 relays. When the engine switch is on (ACC), OFF is displayed. IG1 Relay Monitor(Outside) IG1 relay coil voltage monitor status ON or OFF ON: Engine switch on (IG) OFF: Engine switch off Use this item to determine whether the IG1 relay is malfunctioning. When the engine switch is on (ACC), OFF is displayed. IG1 Relay Monitor(Inside) IG1 relay activation ON or OFF ON: Engine switch on (IG) OFF: Engine switch off Use this item to determine whether the IG1 relay is malfunctioning. When the engine switch is on (ACC), OFF is displayed. IG2 Relay Monitor(Outside) IG2 relay coil voltage monitor status ON or OFF ON: Engine switch on (IG) OFF: Engine switch off Use this item to determine whether the IG2 relay is malfunctioning. When the engine switch is on (ACC), OFF is displayed. IG2 Relay Monitor(Inside) IG2 relay activation ON or OFF ON: Engine switch on (IG) OFF: Engine switch off Use this item to determine whether the IG2 relay is malfunctioning. When the engine switch is on (ACC), OFF is displayed. Starter Request Signal Engine start request signal status ON or OFF except Manual Transaxle: ON: With the shift lever in P and brake pedal depressed, the engine switch is pressed and held OFF: After approx. 1 sec. has elapsed, the engine switch is released for Manual Transaxle: ON: With the clutch pedal depressed, the engine switch is pressed and held OFF: After approx. 1 sec. has elapsed, the engine switch is released When the engine cannot be started due to a start request signal malfunction, OFF is displayed. When the engine switch is pressed, the duration of time that ON is displayed will be extremely short. As such, the engine switch needs to be pressed and held for a certain amount of time. ACC Relay Monitor ACC relay activation ON or OFF ON: Engine switch on (ACC) OFF: Engine switch off When the engine switch is on (IG), ON is displayed. While the engine is cranking, OFF is displayed. Engine Condition Engine state Stop or Run Stop: Engine stopped Run: Engine running - Vehicle Speed Signal Vehicle being driven or stopped Stop or Run Stop: Vehicle stopped Run: Vehicle being driven at 5 km/h (3 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) 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). Powertrain Type Vehicle identification HV-AT, Cnv-MT, Cnv-AT, Cnv-MMT, S&S-MT, S&S-AT or S&S-MMT Cnv-MT: Conventional M/T (M/T vehicle not equipped with hybrid system) Cnv-AT: Conventional CVT (CVT vehicle not equipped with hybrid system) Cnv-MMT: Conventional MMT (MMT vehicle not equipped with hybrid system) S&S-MT: Stop and start M/T (M/T vehicle not equipped with hybrid system) S&S-AT: Stop and start CVT (CVT vehicle not equipped with hybrid system) - IG1 Circuit IG1 relay coil circuit malfunction OK or NG OK: Circuit normal NG: Circuit malfunctioning Use this item to determine whether the IG1 relay is malfunctioning. When the engine cannot be started due to an IG1 relay malfunction, NG is displayed. IG2 Circuit IG2 relay coil circuit malfunction OK or NG OK: Circuit normal NG: Circuit malfunctioning Use this item to determine whether the IG2 relay is malfunctioning. When the engine cannot be started due to an IG2 relay malfunction, NG is displayed. Starter SW Sig Mismatch Engine switch signal 1 and 2 do not match Yes or No Yes: Switch malfunctioning (engine switch signal 1 and 2 do not match) No: Switch normal The engine can be started even if the result is Yes. However, emergency engine off while driving by pressing and holding the engine switch and, when the brakes are malfunctioning, emergency engine starting by pressing and holding the engine switch cannot be performed. Park Signal Mismatch P position signal malfunction* Yes or No Yes: Signal malfunction (CAN communication and direct line signal do not match) No: Signal normal Even when Yes is displayed, it is still possible to turn the engine switch off (the power source mode will not be stuck in on (ACC) or on (IG)). Str Lock/Unlock Wait T-Out Steering lock or unlock malfunction Yes or No Yes: Lock or unlock malfunction (e.g. steering lock is stuck etc.) No: Lock and unlock normal When the engine cannot be started due to a steering lock or unlock malfunction, Yes is displayed. Key Certif Wait T-Out Key verification malfunction Yes or No Yes: Verification error (detected due to the electrical key transmitter sub-assembly ID code and the ID code stored in the certification ECU (smart key ECU assembly) not matching) No: Verification normal When the engine cannot be started due to a key verification error, Yes is displayed. Number of Diagnosis Code Number of DTCs 0 to 255 - - *: except Manual Transaxle HINT: To check if the Data List display changes, get into the vehicle while carrying an electrical key transmitter sub-assembly and perform the following operations with the engine switch off and the shift lever in P. *1: Press the engine switch with the brake pedal released and check that the engine switch is turned on (ACC). *2: Press the engine switch with the brake pedal released and check that the engine switch is turned on (IG). *3: Depress the brake pedal (stop light switch is on). *4: Press the engine switch with the brake pedal depressed and check that the engine starts. *5: Press the engine switch with the brake pedal depressed and check that the engine switch is turned off. *6: Release the brake pedal. *7: Open a door. HINT: To check if the Data List display changes, get into the vehicle while carrying an electrical key transmitter sub-assembly and perform the following operations with the engine switch off and the shift lever in neutral. *1: Without depressing the clutch pedal, press the engine switch and check that the power source mode changes to on (ACC). *2: Without depressing the clutch pedal, press the engine switch and check that the power source mode changes to on (IG). *3: Depress the clutch pedal (clutch start switch is on). *4: With the clutch pedal depressed, press the engine switch and check that the engine starts. *5: Press the engine switch and check that the power source mode changes to off. *6: Release the clutch pedal. *7: Open a door. Body Electrical > Smart Key > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Ignition Switch Certification ECU (smart key ECU assembly) IG power supply input status ON or OFF ON: Engine switch on (IG) OFF: Engine switch off When the engine switch is on (ACC), OFF is displayed. # Codes Number of DTCs 0 to 255 - - Immobilizer Immobilizer system determined by certification ECU (smart key ECU assembly) 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)) The engine cannot be started when Set is displayed. HINT: The security indicator light blinks when Set is displayed. The security indicator light is linked with set/unset of the immobilizer and not linked with steering lock/unlock. Steering Lock Sleep Cond Steering lock ECU sleep availability Yes or No Yes: Sleep available No: Sleep not available - Steering Lock Start Cond Steering lock ECU wake up signal status Yes or No Yes: Wake up signal sent No: Wake up signal not sent - Engine Start Condition Status of engine start permission signal determined by steering lock ECU (steering lock actuator assembly) and sent to certification ECU (smart key ECU assembly) OK or NG OK: Engine start permitted NG: Engine start prohibited When OK is displayed, the certification ECU (smart key ECU assembly) receives an unlock confirmation signal from the steering lock ECU (steering lock actuator assembly) and makes fuel injection and engine starting possible. The engine cannot be started when NG is displayed. Sensor Value History of malfunction of position sensor in steering lock ECU (steering lock actuator assembly) (DTC B2781 is stored) OK or NG(Past) OK: History of malfunction for the lock or unlock sensor in the steering lock ECU (steering lock actuator assembly) does not exist. NG(Past): History of both the lock and unlock sensors in the steering lock ECU (steering lock actuator assembly) being on exists (under normal operation, neither sensor is on). When NG(Past) is displayed, either the position sensor in the steering lock ECU (steering lock actuator assembly) or the assembly itself may be malfunctioning. Power Supply Short History of signal error (short) sent from certification ECU (smart key ECU assembly) to steering lock ECU (steering lock actuator assembly) (DTC B2782 is stored) OK or NG(Past) OK: History of motor power source short does not exist NG(Past): History of motor power source short exists This item displays history when a malfunction exists in the circuit between the certification ECU (smart key ECU assembly) and the steering lock ECU (steering lock actuator assembly). Motor Driver Short History of malfunction (short) in the steering lock ECU (steering lock actuator assembly) motor circuit (DTC B2781 is stored). OK or NG(Past) OK: History of short in the motor circuit does not exist NG(Past): History of short in the motor circuit exists History of a malfunction in the steering lock motor circuit in the steering lock ECU (steering lock actuator assembly). Lock/Unlock Receive History of receiving an unlock request signal Yes or No Yes: History of receiving an unlock request signal exists No: History of receiving an unlock request signal does not exist - Lock Bar Stuck Error History of the steering not being able to unlock properly when the steering lock operates for a certain amount of time OK or NG(Past) OK: History of steering lock being stuck does not exist NG(Past): History of steering lock being stuck exists - Push Start Error History of push start malfunction due to steering lock ECU (steering lock actuator assembly) OK or NG(Past) OK: History of push start malfunction does not exist NG(Past): History of push start malfunction exists - Engine Start Request Status of engine start permission signal determined by steering lock ECU (steering lock actuator assembly) and sent to certification ECU (smart key ECU assembly) OK or NG OK: Signal received NG: Signal not received When OK is displayed, the certification ECU (smart key ECU assembly) receives an unlock confirmation signal from the steering lock ECU (steering lock actuator assembly) and makes fuel injection and engine starting possible. The engine cannot be started when NG is displayed. S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU) OK or NG OK: Verification result normal NG: Verification result abnormal When NG is displayed: The ID code for the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU) is not registered or the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU) is malfunctioning. The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started). L Code Check Verification result between ID code box (immobilizer code ECU) and steering lock ECU (steering lock actuator assembly) OK or NG OK: Verification result normal NG: Verification result abnormal When NG is displayed: The ID code for the ID code box (immobilizer code ECU) or steering lock ECU (steering lock actuator assembly) is not registered or the ID code box (immobilizer code ECU) or steering lock ECU (steering lock actuator assembly) is malfunctioning. The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started). Unlock Request Receive Unlock request signal received state OK or NG OK: Within 10 sec. of turning the engine switch on (IG) or on (ACC), or of an engine start operation being performed NG: Engine switch on (IG) or on (ACC), or engine start operation not performed The engine cannot be started when an unlock request signal cannot be received. If OK is not displayed even though the steering unlock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning. Lock Request Receive Lock request signal received state HINT: The reception state is maintained for 10 seconds. When 10 seconds or more elapse after receiving the signal, the item changes to "NG". OK or NG OK: Lock request signal received for 10 sec. of any of the doors being opened with shift lever in P and engine switch off. NG: Except above If OK is not displayed even though the steering lock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning. S Code Check(Past) Verification result history between the certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU) OK or NG(Past) OK: History of abnormal verification result does not exist NG(Past): History of abnormal verification result exists - L Code Check(Past) Verification result history between the ID code box (immobilizer code ECU) and steering lock ECU (steering lock actuator assembly) OK or NG(Past) OK: History of abnormal verification result does not exist NG(Past): History of abnormal verification result exists - Steering Lock Steering lock ECU (steering lock actuator assembly) lock confirmation status Set or Unset Set: Lock confirmed Unset: Lock not confirmed When Unset is displayed, the steering is not locked. Steering Unlock Steering lock ECU (steering lock actuator assembly) unlock confirmation status Set or Unset Set: Unlock confirmed Unset: Unlock not confirmed When Unset is displayed, the steering is not locked (the engine cannot be started). Ignition Available Area Ignition available area Front or All Customization status displayed - Key Low Battery Warning Low transmitter battery warning ON or OFF Customization status displayed - Engine Start Indicator Key warning light ON or OFF Customization status displayed - HINT: To check if the Data List display changes, get into the vehicle while carrying an electrical key transmitter sub-assembly and perform the following operations with the engine switch off and the shift lever in P*5. *1: Press the engine switch with the brake pedal*5 or clutch pedal*6 released and check that the engine switch is turned on (ACC). *2: Press the engine switch with the brake pedal*5 or clutch pedal*6 released and check that the engine switch is turned on (IG). *3: Press the engine switch and check that the engine switch is turned off. *4: Release the brake pedal*5 or clutch pedal*6, open the driver door and check that the steering locks. *5: except Manual Transaxle *6: for Manual Transaxle Body Electrical > Starting Control > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Starter SW Starter operation request ON or OFF ON: Starter operation requested OFF: Starter operation not requested When malfunctioning, the engine will not crank. Shift Position P or N Park/neutral position switch* ON or OFF ON: Shift lever in P or N OFF: Shift lever not in P or N When malfunctioning, the engine will not crank. Starter Relay Starter relay voltage monitor ON or OFF ON: ST relay on OFF: ST relay off OFF is displayed when the engine cannot crank. Starting Control SW Starter request signal monitor ON or OFF ON: Starting control switch on OFF: Starting control switch off When malfunctioning, the engine cannot crank. Ignition IG2 status ON or OFF ON: IG2 relay on OFF: IG2 relay off - Engine Speed Engine speed 0 to 16383 r/min Fluctuates in accordance with engine speed - Number of DTCs Number of DTCs 0 to 255 - - *: except Manual Transaxle HINT: *: With the engine switch on (IG), the shift lever in P or N*1 and the brake pedal*1 or clutch pedal*2 depressed, press the engine switch and check that the engine starts. *1: except Manual Transaxle *2: for 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 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 / (desired system) / Active Test. Perform Active Test according to the display on the Techstream. Body Electrical > Power Source Control > Active Test Tester Display Measurement Item Control Range Diagnostic Note P Supply for Steering Lock Certification ECU (smart key ECU assembly) OFF/ON HINT: OFF: Power is not supplied. ON: Power is supplied. When performing this Active Test, make sure the following condition is met: The engine switch is on (IG). Body Electrical > Smart Key > Active Test Tester Display Measurement Item Control Range Diagnostic Note Power/Engine SW Light Engine switch light OFF/ON When performing this Active Test, make sure the following condition is met: The engine switch illumination is off (15 seconds or more have elapsed since it turned from on to off) and the engine switch is on (ACC) or on (IG), or the engine is running. Body Electrical > Starting Control > Active Test Tester Display Measurement Item Control Range Diagnostic Note Activate the Starter Relay ST relay OFF/ON The electrical key transmitter sub-assembly is in the cabin and the engine is stopped. Body Electrical > Combination Meter > Active Test Tester Display Measurement Item Control Range Diagnostic Note Smart System Indicator Key warning light* OFF/ON The key warning light (green) can be operated by selecting the item. Smart System Warning Key warning light* OFF/ON The key warning light (orange) can be operated by selecting the item. *: w/ Multi-information Display (Segment LCD Type)

DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]

SMART KEY SYSTEM (FOR START FUNCTION)