Smart Key System (for Start Function) (diagnostics - Introduction) Toyota Prius C I

PRECAUTION

1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTE: When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following system after the cable is reconnected. System Name See Procedure Power Door Lock Control System Refer to «INITIALIZATION»(/toyota/prius-c/i-2011-2015/remont/hoistjack/#introduction__initialization)
2. DOOR CONTROL RECEIVER EXPRESSIONS The type of door control receiver used on this model differs according to the specifications of the vehicles. The expressions listed in the table below are used in this information. Vehicle Specification Part Name in Manual Actual Part Name w/ Tire Pressure Warning System Door control receiver Door control and tire pressure monitoring system receiver assembly w/o Tire Pressure Warning System Door control receiver Door control receiver
3. PRECAUTIONS WHEN USING TECHSTREAM When using the Techstream with the power switch off to troubleshoot the smart key system (for Start Function): Connect the Techstream to the DLC3 and turn a door courtesy light on and off at 1.5-second or less intervals until communication between the Techstream and vehicle begins (the Techstream screen changes when communication begins).
4. PRECAUTION FOR REGISTRATION If replacing any of the following parts, refer to the registration procedures. Refer to «REGISTRATION»(/toyota/prius-c/i-2011-2015/remont/door-locks-anti-theft-systems/#engine-immobiliser-with-smart-key-system-diagnostics-introduction) . Certification ECU (smart key ECU assembly) Steering lock ECU (steering lock actuator assembly) Electrical key transmitter sub-assembly ID code box (immobiliser code ECU)

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SYSTEM DESCRIPTION

1. SYSTEM FUNCTION Function Outline Push-button start function When the electrical key transmitter sub-assembly is brought into the vehicle and verified, this function changes the power source or starts the hybrid control system when the power switch and brake pedal are operated. Battery saving function for vehicle When the vehicle is not used for a long time, this function extends the interval between each periodic transmission of the request signal, or stops transmission of the request signal to save auxiliary battery power. When 5 days elapse without a response from the electrical key transmitter sub-assembly, periodic transmission stops. When 14 days elapse without a response from the electrical key transmitter sub-assembly, the lock/unlock sensor of all door outside handle assemblies except the driver door is disabled. When the electrical key transmitter sub-assembly is left in a 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. Battery saving function for key If a switch on the key is depressed and held, this function stops transmission of the signal after approximately 20 seconds to save transmitter battery power. Key cancel function Cancels the smart key system when certain operations are performed. Immobiliser function Allows the hybrid control system to be started only using registered keys to prevent an unauthorized hybrid control system start. Automatic power off function With the shift lever in P and the power switch on (ACC) (the hybrid control system is not started and the vehicle is not moving), the power automatically turns off when the vehicle is left as is for 20 minutes or more. With the shift lever in P and the power switch on (IG) (the hybrid control system is not started and the vehicle is not moving), the power automatically turns off when the vehicle is left as is for 60 minutes or more.
2. DETECTION AREA NOTE: Depending on the vehicle body shape, the electrical key transmitter sub-assembly may not operate in certain locations. Even if the electrical key transmitter sub-assembly is in the vehicle exterior key detection area, the electrical key transmitter sub-assembly may not be properly detected if the electrical key transmitter sub-assembly is near a window, a door handle or the center of the rear bumper. Even if the electrical key transmitter sub-assembly is in the vehicle interior key detection area, the electrical key transmitter sub-assembly may not be properly detected if the electrical key transmitter sub-assembly is on the instrument panel, in the glove box or on the floor. Depending on the way the electrical key transmitter sub-assembly is held, the electrical key transmitter sub-assembly may not operate properly. The key detection area may reduce in size or the electrical key transmitter sub-assembly may not be properly detected under the conditions below: The transmitter battery is depleted. There are TV towers, electric power plants, broadcasting stations, gas stations or other facilities that produce strong electric waves nearby. Wireless products such as cell phones, etc. are carried with the electrical key transmitter sub-assembly. The electrical key transmitter sub-assembly is covered by or in contact with a metal object. Electric wave-type keyless entry systems are being operated nearby. The electrical key transmitter sub-assembly is placed near high-voltage equipment or equipment that emits electrical noise. The request signal sent from the certification ECU (smart key ECU assembly) is transmitted from each electrical key antenna (outside) to form the smart key detection area. The detection area formed by each electrical key antenna (outside) has a detection range of 0.7 to 1 m (2.30 to 3.28 ft.) from the door handles and rear bumper (electrical key antenna [outside luggage]). When the vehicle is parked (the power is off and the doors are locked*), the detection area of each electrical key antenna (outside) is formed by emitting a periodic request signal every 0.25 seconds in order to detect the electrical key transmitter sub-assembly. Also, when the doors are locked and a lock sensor is touched, a request signal is emitted, the detection area outside the vehicle is formed and the electrical key transmitter sub-assembly is detected. HINT: *: The smart key system controls each door individually. After a door is locked with the door lock sensor or wireless remote control function, a detection area is formed at the locked door even if all the doors are not locked. The detection area of the electrical key antenna (outside luggage) is formed when the back door opener switch assembly is pressed. The detection area inside the vehicle is formed and the electrical key transmitter sub-assembly is detected when any of the following conditions are met: 1) The driver door is opened and closed, 2) the brake pedal is depressed, 3) the power switch is operated, 4) the conditions required for various warnings are met, or 5) a smart door lock operation is performed. The detection area inside the vehicle when starting the hybrid control system can be customized through the customize function. Refer to «CUSTOMIZE PARAMETERS»(/toyota/prius-c/i-2011-2015/remont/starter/#smart-key-system-for-start-function-diagnostics-introduction__customize-parameters) .

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

1. Use these procedures to troubleshoot the smart key system (for Start Function).
2. *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
2. CUSTOMER PROBLEM ANALYSIS CHECK HINT: In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred. Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases. The following 5 items are important points for problem analysis: What Vehicle model, system name When Date, time, occurrence frequency, whether the problem occurred recently or has been occurring for a long time Where Whether the problem occurs at a specific location Under what conditions? Whether the doors were locked or unlocked, whether the power switch was on, whether the hybrid control system has started How did it happen? Problem symptoms* *: Be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem, and then check for DTCs. If the entry lock/unlock function does not operate for all doors. If the entry lock function does not operate. If the entry unlock function does not operate. If both the entry lock and unlock functions do not operate. If the wireless lock and unlock functions do not operate. If there is no power even when the power switch is pressed (does not turn on (ACC)). If the hybrid control system does not start with the push-button start function. If the wireless answer-back buzzer and outside warning buzzers do not sound. If the customer attempted to start the hybrid control system by touching the electrical key transmitter sub-assembly to the power switch and pressing the power switch. If the interior warning buzzers do not sound. If the steering does not unlock. Any other details concerning the problem. If it is thought that wave interference is likely, be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem. Specific locations where the system does not operate (such as near TV towers, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc.). Specific times when the system does not operate: Whether or not symptoms occurred immediately after purchase or only recently. Whether or not the symptoms occurred even when the electrical key transmitter sub-assembly was near the vehicle (electrical key antenna). If the system does not operate only when near specific vehicles (there may be an effect from electric waves from the wireless systems of other vehicles). If the system operates intermittently. If the electrical key transmitter sub-assembly is bundled together with other items. If the electrical key transmitter sub-assembly is carried together with other electronic devices, such as cell phones, personal computers, portable music players, other electrical keys, etc. (keep the electrical key transmitter sub-assembly at least 0.1 m (0.33 ft.) away from such items). Where the electrical key transmitter sub-assembly is being kept when not in use: Whether or not the electrical key transmitter sub-assembly being placed within 1 m (3.28 ft.) of items such as TVs, DVD recorders, induction cookers, rice cookers, dishwashers, modems, cell phones, personal computers, microwave ovens, desk or floor lamps, cordless telephones, etc. If there are electronic devices that transmit electric waves placed in the vehicle. When the transmitter battery was last replaced (when the battery is low): The transmitter battery can be checked using the "Key Low Battery" item in the Data List. Refer to «DATA LIST / ACTIVE TEST»(/toyota/prius-c/i-2011-2015/remont/starter/#smart-key-system-for-start-function-diagnostics-introduction) . If the customer installed any optional components (theft deterrent devices, wireless fog lights, etc.) to the vehicle. NEXT: Go to next step
3. INSPECT BASIC OPERATION Inspect auxiliary battery voltage with the power switch off. Standard voltage 11 to 14 V NOTE: If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step. Check for blown fuses, open or shorted wire harnesses, improperly connected connectors and other problems in areas that can be visually inspected. NEXT: Go to next step
4. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* Use the Techstream to check if the CAN communication system is functioning normally. Refer to «DIAGNOSIS SYSTEM»(/toyota/prius-c/i-2011-2015/remont/communication-devices/#can-communication-system-diagnostics-introduction) . Result Result Proceed to CAN DTC is not output A CAN DTC is output B B --> GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(/toyota/prius-c/i-2011-2015/remont/communication-devices/#lin-communication-system-diagnostics-introduction__how-to-proceed-with-troubleshooting) A: Go to next step
5. CHECK FOR DTC* Check for DTCs and note any codes that are output. Refer to «DTC CHECK / CLEAR»(/toyota/prius-c/i-2011-2015/remont/starter/#smart-key-system-for-start-function-diagnostics-introduction__dtc-check-clear) . Result Result Proceed to DTC is not output A Engine immobiliser system DTC is output B Smart key system (for Entry Function) DTC is output C Smart key system (for Start Function) DTC is output D B --> GO TO ENGINE IMMOBILISER SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(/toyota/prius-c/i-2011-2015/remont/door-locks-anti-theft-systems/#engine-immobiliser-with-smart-key-system-diagnostics-introduction__how-to-proceed-with-troubleshooting) C --> GO TO SMART KEY SYSTEM (for Entry Function). Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-c/i-2011-2015/remont/door-locks-anti-theft-systems/#smart-key-system-for-entry-function-diagnostics-introduction__diagnostic-trouble-code-chart) D --> GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-c/i-2011-2015/remont/starter/#smart-key-system-for-start-function-diagnostics-introduction__diagnostic-trouble-code-chart) A: Go to next step
6. PROBLEM SYMPTOMS TABLE Refer to Problem Symptoms Table. Refer to «PROBLEM SYMPTOMS TABLE»(/toyota/prius-c/i-2011-2015/remont/starter/#smart-key-system-for-start-function-diagnostics-introduction__problem-symptoms-table) . Result Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B B --> Go to step 8 A: Go to next step
7. OVERALL ANALYSIS AND TROUBLESHOOTING* Operation Check. Refer to «OPERATION CHECK»(/toyota/prius-c/i-2011-2015/remont/starter/#smart-key-system-for-start-function-diagnostics-introduction) Terminals of ECU. Refer to «TERMINALS OF ECU»(/toyota/prius-c/i-2011-2015/remont/starter/#smart-key-system-for-start-function-diagnostics-introduction) Data List / Active Test. Refer to «DATA LIST / ACTIVE TEST»(/toyota/prius-c/i-2011-2015/remont/starter/#smart-key-system-for-start-function-diagnostics-introduction) NEXT: Go to next step
8. REPAIR OR REPLACE NEXT: Go to next step
9. CHECK FOR DTC* Clear the DTCs. Refer to «DTC CHECK / CLEAR»(/toyota/prius-c/i-2011-2015/remont/starter/#smart-key-system-for-start-function-diagnostics-introduction__dtc-check-clear) . Recheck for DTCs. Refer to «DTC CHECK / CLEAR»(/toyota/prius-c/i-2011-2015/remont/starter/#smart-key-system-for-start-function-diagnostics-introduction__dtc-check-clear) . HINT: Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure. Result Result Proceed to DTC is not output A DTC is output B B --> GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-c/i-2011-2015/remont/starter/#smart-key-system-for-start-function-diagnostics-introduction__diagnostic-trouble-code-chart) A --> END

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1. OPERATION DESCRIPTION Push-button start function: When the electrical key transmitter sub-assembly is in a detection area inside the vehicle and the brake pedal is depressed, the hybrid control system is started by pressing the power switch. When the electrical key transmitter sub-assembly is in a detection area inside the vehicle and the brake pedal is not depressed, the power source mode is changed by pressing the power switch. The power source mode changes in the following order every time the power switch is pressed: off --> on (ACC) --> on (IG) --> off. After getting into the vehicle while carrying the electrical key transmitter sub-assembly when the power switch is off, if the power switch is pressed while not depressing the brake pedal, the power source mode changes to on (ACC). After getting into the vehicle while carrying the electrical key transmitter sub-assembly when the power switch is off, if the power switch is pressed 2 times without depressing the brake pedal, the power source mode changes to on (IG). After getting into the vehicle while carrying the electrical key transmitter sub-assembly when the power switch is off, if the brake pedal is depressed while the shift lever is in P, or the smart warning light is displayed. The hybrid control system starts if the power switch is pressed when the smart warning light is displayed. TEXT IN ILLUSTRATION *a Smart Warning Light Displayed Changing the power source mode when the electrical key transmitter sub-assembly does not operate correctly due to wave interference or transmitter battery depletion: Unlock the door using the built-in mechanical key and get into the vehicle while carrying the electrical key transmitter sub-assembly. While depressing the brake pedal and facing the logo side of the electrical key transmitter sub-assembly towards the power switch, hold the electrical key transmitter sub-assembly near the power switch. A buzzer in the combination meter assembly sounds and the power source mode changes to on (IG). Pressing the power switch without depressing the brake pedal turns the power source mode from on (IG) to off. Starting the hybrid control system when the electrical key transmitter sub-assembly does not operate correctly due to wave interference or transmitter battery depletion: Unlock the door using the built-in mechanical key and get into the vehicle while carrying the electrical key transmitter sub-assembly. While depressing the brake pedal with the shift lever in P, while facing the logo side of the electrical key transmitter sub-assembly towards the power switch, hold the electrical key transmitter sub-assembly near the power switch. A buzzer in the combination meter assembly sounds, the power source mode changes to on (IG) and the smart warning light is displayed. Press the power switch with the brake pedal depressed to start the hybrid control system.
2. CHECK PUSH-BUTTON START FUNCTION Check the push-button start function: Get into the vehicle while carrying the electrical key transmitter sub-assembly with the power switch off. With the shift lever in P, check that the smart warning light is displayed when the brake pedal is depressed. Then check that the hybrid control system starts when the power switch is pressed after the smart warning light is displayed. While the brake pedal is released and the electrical key transmitter sub-assembly is being carried, check that the power source mode changes in the following order when the power switch is pressed: off --> on (ACC) --> on (IG) --> off. HINT: When the power switch is pressed with the power switch on (IG) and the shift lever not in P, the power source mode does not change to off, but changes to on (ACC). With the shift lever in P, check that the steering lock operates when a door is opened. HINT: When the power switch is pressed after the vehicle is stopped, the hybrid control system stops and all the power turns off. However, if the shift lever is not in P when the power switch is pressed with the vehicle stopped, the power source mode does not change to off, but changes to on (ACC). Inspect the push start operating range (front floor). Place the electrical key transmitter sub-assembly on the front seat at either inspection point so that it is facing in the direction shown in the illustration and check that the hybrid system can be started. TEXT IN ILLUSTRATION *a Inspection Point NOTE: Even if the electrical key transmitter sub-assembly is within the vehicle interior detection area, the electrical key transmitter sub-assembly may not be properly detected if it is on the instrument panel, in the glove box or on the floor. Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the shift lever. HINT: Perform the inspection for both inspection points. Inspect the push start operating range (steering column). Place the electrical key transmitter sub-assembly on the steering column at inspection point so that it is facing in the direction shown in the illustration and check that the hybrid system can be started. TEXT IN ILLUSTRATION *a Inspection Point NOTE: Even if the electrical key transmitter sub-assembly is within the vehicle interior detection area, the electrical key transmitter sub-assembly may not be properly detected if it is on the instrument panel, in the glove box or on the floor. Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the shift lever. Inspect the push start operating range (rear floor). Place the electrical key transmitter sub-assembly on the rear seat at either inspection point so that it is facing in the direction shown in the illustration and check that the hybrid system can be started. TEXT IN ILLUSTRATION *a Inspection Point NOTE: Even if the electrical key transmitter sub-assembly is within the vehicle interior detection area, the electrical key transmitter sub-assembly may not be properly detected if it is on the instrument panel, in the glove box or on the floor. Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the center of the rear seat cushion. HINT: Perform the inspection for both inspection points.
3. CHECK TRANSMITTER BATTERY SAVING FUNCTION Check the transmitter battery saving function: Press the unlock button of the electrical key transmitter sub-assembly twice while pressing the lock button and check that the electrical key transmitter sub-assembly LED blinks 4 times and enters transmitter battery saving mode. Check that the smart key system does not operate while in transmitter battery saving mode. HINT: To cancel transmitter battery saving mode, press a button of the electrical key transmitter sub-assembly.
4. CHECK POWER SOURCE MODE CHANGING FUNCTION Check the power switch. Check that the power source mode changes according to the chart below. Shift Position Brake Pedal Power Source Mode when Power Switch Pressed P Released Off --> on (ACC) --> on (IG) --> off P Released On (READY) --> off P Released On (ACC)* --> off P Depressed Off --> on (READY) P Depressed On (ACC) --> on (READY) P Depressed On (IG) --> on (READY) P Depressed On (READY) --> off P Depressed On (ACC)* --> off Not P Released Off --> on (ACC) --> on (IG) (after power source mode changes to on (IG), power source mode changes between on (IG) and on (ACC) every time power switch is pressed) Not P Released On (READY) --> on (ACC) Not P Depressed Off --> on (IG) Not P Depressed On (ACC) --> on (IG) Not P Depressed On (READY) --> on (ACC) HINT: *: This situation is only applicable when the power source mode has changed from on (IG) or READY to on (ACC).
5. CHECK POWER SOURCE MODE INDICATION Check the smart warning. TEXT IN ILLUSTRATION *a POWER ON display *b Smart Warning Light display MULTI-INFORMATION DISPLAY INSPECTION Power Source Mode Multi-information Display Off (Excluding condition in which the hybrid control system can be started) Off On (ACC) (Excluding condition in which the hybrid control system can be started) "POWER ON" displayed On (IG) (Excluding condition in which the hybrid control system can be started) "POWER ON" displayed Condition in which hybrid control system can be started*1 Smart Warning Light displayed Hybrid control system started Off HINT: *1: Indicates the condition in which the hybrid control system can be started by pressing the power switch while either of the following conditions is met: Condition 1 All of the following conditions are met: The power source mode was turned from on (IG) READY to on (ACC). Key verification is OK*2 or immobiliser is unset (power switch is on (ACC) or on (IG)). The shift lever is in N and the steering is unlocked. The stop light switch is on. Condition 2 All of the following conditions are met: The power source mode was not turned from on (IG) to on (ACC). Key verification is OK*2 or immobiliser is unset (power switch is on (ACC) or on (IG)). The stop light switch is on. The shift lever is in P, or the shift lever is in N with the steering unlocked. *2: When the electrical key transmitter sub-assembly is in the vehicle, the ID code sent as a result from communication between the electrical key transmitter sub-assembly and certification ECU (smart key ECU assembly) and the ID code calculated by the certification ECU (smart key ECU assembly) are compared. If the ID codes match each other, the vehicle recognizes that the electrical key transmitter sub-assembly is in the vehicle.

CUSTOMIZE PARAMETERS

1. CUSTOMIZE SMART KEY SYSTEM (for Start Function) HINT: The following items can be customized. NOTE: When the customer requests a change in a function, first make sure that the function can be customized. Record the current settings before customizing. Customizing with the Techstream Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Customize Setting / Smart Key/Access or Warning. Select the setting by referring to the table below. SMART KEY/ACCESS Display Default Content Setting Relevant ECU Ignition Available Area (Entry ignition available area) All Function that sets the area that the key must be in before the power switch can be operated. Front or All Certification ECU (smart key ECU assembly) Engine Start Indicator ON Function that turns the smart warning light on the combination meter assembly on or off. OFF or ON Certification ECU (smart key ECU assembly) WARNING Display Default Content Setting Relevant ECU Key Low Battery Warning (Warn when key battery becomes weak) ON Enables or disables the sounding of the buzzer when the transmitter battery is low and the power switch is turned off after being on (IG) for 20 minutes or more. OFF or ON Certification ECU (smart key ECU assembly) Entry cancel function (manual operation) HINT: While the smart key system is canceled, it is possible to lock and unlock the doors with the wireless operation, and the start system can be operated by holding the electrical key transmitter sub-assembly near the power switch. The following functions are disabled when the smart key system is canceled. Entry unlock/lock functions Push-button start function Key lock-in prevention function Entry warning functions When canceling the system through manual operation: Make sure the following conditions are met: The power switch is off. The driver door is closed. The driver door is unlocked. Press the unlock button of the electrical key transmitter sub-assembly. Open the driver door within 5 seconds of completing the step above (driver door: close condition --> opened). With the driver door open, press the unlock button of the electrical key transmitter sub-assembly 2 times within 5 seconds of completing the step above. NOTE: If the driver door is closed before or while pressing the unlock button, the entry cancel setting mode will end. Close and open the driver door twice completing the above step (driver door: open condition --> closed --> opened --> closed --> opened). With the driver door open, press the unlock button of the electrical key transmitter sub-assembly 2 times completing the step above. NOTE: If the driver door is closed before or while pressing the unlock button, the entry cancel setting mode will end. Close and open the driver door completing the step above (driver door: open condition --> closed --> opened). Close the driver door within 5 seconds of completing the above step. Check that the wireless buzzer sounds twice (short beeps) to confirm that the smart key system has been canceled. HINT: Finish the step 5 to 7 within 30 seconds. Perform the following procedure to restore the smart key system to the active state from the canceled state. Perform the procedures to cancel the smart key system again. Check that the wireless buzzer sounds once (short beep) to confirm that the smart key system has been restored to the active state. HINT: The system changes between the canceled state and the active state each time the procedure to cancel the system through manual operation is performed. The buzzer sounds twice when the system changes from the active state to the canceled state, and sounds once when the system changes from the canceled state to the active state.

PROBLEM SYMPTOMS TABLE

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 POWER MANAGEMENT CONTROL ECU Disconnect the A39, G57 and G58 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 A39-2 (IG2D) - Body ground Output P - Body ground IG2 signal 20°C (68°F) Approximately 302.97 ohms IG2 Relay Monitor(Outside) A39-23 (STP) - Body ground Input L - Body ground Stop light switch signal Brake pedal released --> Brake pedal depressed 9 V or higher --> 1 V or less Stop Light Switch1 G57-1 (AM22) - Body ground Input B - Body ground Power source Power switch off 11 to 14 V - G58-7 (AM21) - Body ground Input B - Body ground Power source Power switch off 11 to 14 V - G58-16 (SLP) - Body ground Input P - Body ground Steering lock position signal Always 10 kohms or higher Steering Unlock Switch G57-5 (E01) - Body ground - W-B - Body ground Ground Always Below 1 ohms - G58-5 (E02) - Body ground - W-B - Body ground Ground Always Below 1 ohms - G57-6 (E1) - Body ground - BR - Body ground Ground Always Below 1 ohms - G58-17 (SSW2) - Body ground Input SB - Body ground SSW2 contact signal HINT: Backup for SSW1. Behaves the same way as SSW1. Power switch pushed --> Power switch not pushed Below 1 ohms --> 10 kohms or higher Start Switch2 G57-7 (SSW1) - Body ground Input V - Body ground SSW1 contact signal Power switch pushed --> Power switch not pushed Below 1 ohms --> 10 kohms or higher Start Switch1 G58-2 (IG1D) - Body ground Output SB - Body ground IG1 signal 20°C (68°F) 40.74 to 59.49 ohms IG1 Relay Monitor(Outside) G58-1 (ACCD) - Body ground Output L - Body ground ACC signal 20°C (68°F) 81.49 to 118.98 ohms ACC Relay Monitor G57-14 (SPDI) - G57-6 (E1) Input SB - BR Vehicle speed signal Always 30 kohms or higher Vehicle Speed Signal G57-15 (P2) - G57-6 (E1) Input G - BR P position signal Always 40 kohms or higher --> 200 ohms or less Shift P Signal Reconnect the A39, G57 and G58 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 A39-2 (IG2D) - G57-6 (E1) Output P - BR IG2 signal Power switch on (ACC) --> Power switch on (IG) 1 V or less --> 9 V or higher IG2 Relay Monitor(Outside) G58-16 (SLP) - G57-6 (E1) Input P - BR Steering lock position signal Steering wheel locked --> Steering wheel unlocked*1 11 to 14 V --> 1.2 V or less Steering Unlock Switch G58-6 (SLR+) - G57-6 (E1) Output L - BR 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*2 Pulse generation (See waveform 1) - G58-17 (SSW2) - G57-6 (E1) Input SB - BR SSW2 contact signal HINT: Backup for SSW1. Behaves the same way as SSW1. Power switch not pushed --> Power switch pushed 9 V or higher --> 1 V or less Start Switch2 G57-7 (SSW1) - G57-6 (E1) Input V - BR SSW1 contact signal Power switch not pushed --> Power switch pushed 9 V or higher --> 1 V or less Start Switch1 G58-1 (ACCD) - G57-6 (E1) Output L - BR ACC signal Power switch off --> Power switch on (ACC) 1 V or less --> 8.5 V or higher ACC Relay Monitor G58-2 (IG1D) - G57-6 (E1) Output SB - BR IG1 signal Power switch on (ACC) --> Power switch on (IG) 1 V or less --> 9 V or higher IG1 Relay Monitor(Outside) G57-14 (SPDI) - G57-6 (E1) Input SB - BR Vehicle speed signal Vehicle being driven at approx. 5 km/h (3 mph) Pulse generation (See waveform 2) Vehicle Speed Signal G57-15 (P2) - G57-6 (E1) Input G - BR P position signal Shift lever in P --> Shift lever not in P Pulse generation (See waveform 3) Shift P Signal G58-20 (IMO) - G57-6 (E1) Output BE - BR ID code box communication output (Signal output from power management control ECU to ID code box) Power switch off 11 to 14 V - Within 3 seconds of hybrid control system start or within 3 seconds of power switch turned on (IG) after auxiliary battery cable disconnected and reconnected Pulse generation (See waveform 4) G58-21 (IMI) - G57-6 (E1) Input LG - BR ID code box communication input (Signal input from ID code box to power management control ECU) Power switch off 11 to 14 V Power switch on (IG) Pulse generation (See waveform 5) HINT: *1: When the power switch is turned off with the shift lever in P and any of the doors are opened or closed, the steering wheel will be locked. When the power switch is turned on (ACC) or on (IG), the steering wheel will be unlocked. *2: When all of the following conditions are met, open any of the doors to operate the steering lock motor. The shift lever is in P. The power switch is off. While carrying the electrical key transmitter sub-assembly, the power switch is turned on (IG) and the steering is unlocked. Using an oscilloscope, check the waveform of the ECU. Waveform 1 Item Content Tester Connection G58-6 (SLR+) - G57-6 (E1) Tool Setting 2 V/DIV., 200 ms./DIV. Vehicle Condition Steering lock motor stopped --> Steering lock motor operating --> Steering lock motor stopped TEXT IN ILLUSTRATION *a Steering lock motor not operating *b Steering lock motor operating HINT: When all of the following conditions are met, open any of the doors to operate the steering lock motor. The shift lever is in P. While carrying the electrical key transmitter sub-assembly, the power switch is turned on (IG) and the steering is unlocked. The power switch is off. Waveform 2 Item Content Tester Connection G57-14 (SPDI) - G57-6 (E1) Tool Setting 5 V/DIV., 20 ms./DIV. Vehicle Condition Power switch on (IG), vehicle being driven at approx. 5 km/h (3 mph) HINT: The wavelength becomes shorter as the vehicle speed increases. Waveform 3 Item Content Tester Connection G57-15 (P2) - G57-6 (E1) Tool Setting 2 V/DIV., 50 ms./DIV. Vehicle Condition Shift lever in P --> Shift lever not in P TEXT IN ILLUSTRATION *a Shift lever in P *b Shift lever not in P Waveform 4 TEXT IN ILLUSTRATION *a Approximately 160 ms *b Approximately 270 ms MEASUREMENT CONDITION Item Content Tester Connection G58-20 (IMO) - G57-6 (E1) Tool Setting 2 V/DIV., 500 ms./DIV. Vehicle Condition Within 3 seconds of hybrid control system start or within 3 seconds of power switch turned on (IG) after auxiliary battery cable disconnected and reconnected Waveform 5 TEXT IN ILLUSTRATION *a Approximately 160 ms *b Approximately 270 ms MEASUREMENT CONDITION Item Content Tester Connection G58-21 (IMI) - G57-6 (E1) Tool Setting 2 V/DIV., 500 ms./DIV. Vehicle Condition Power switch on (IG)

DIAGNOSIS SYSTEM

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»(/toyota/prius-c/i-2011-2015/remont/hoistjack/#introduction) .
3. INSPECT AUXILIARY BATTERY VOLTAGE Measure the auxiliary battery voltage with the power switch off. Standard voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the auxiliary battery.

DTC CHECK / CLEAR

Note. If the Techstream is connected to the vehicle with the power switch off, the information stored in smart key system related ECUs cannot be read. However, smart key system DTCs and Data List information can be confirmed even if the power switch is off using the method below: Connect the Techstream to the vehicle, and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and vehicle begins (the Techstream screen changes when communication begins). Connect the Techstream to the vehicle, select the vehicle type under manual mode, and then enter the following menus: Body Electrical / Smart Key / Trouble Codes.

1. CHECK FOR DTC (POWER MANAGEMENT CONTROL ECU [POWER SOURCE CONTROL]) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Power Source Control / DTC. Check for DTCs. HINT: Refer to the Techstream operator's manual for further details.
2. CHECK FOR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) [SMART KEY]) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / DTC. Check for DTCs. HINT: Refer to the Techstream operator's manual for further details.
3. CLEAR DTC (POWER MANAGEMENT CONTROL ECU [POWER SOURCE CONTROL]) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Power Source Control / DTC / Clear. Clear the DTCs by following the directions on the Techstream display. HINT: Refer to the Techstream operator's manual for further details.
4. CLEAR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) [SMART KEY]) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / DTC / Clear. Clear the DTCs by following the directions on the Techstream display. HINT: Refer to the Techstream operator's manual for further details.

Scheme 17

Scheme 18

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 power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / (desired system) / Data List. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL 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 hybrid control system cannot be started when this item is OFF. Steering Unlock Switch State of steering unlock sensor signal output from steering lock actuator assembly/ON or OFF ON: Steering unlocked OFF: Steering locked When the shift lever is in P and the power switch is off, if any door is opened then closed, the steering is locked. When the electrical key transmitter sub-assembly is inside the vehicle and the power switch is turned on (ACC) or on (IG), the steering unlocks. The hybrid control system 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 hybrid control system cannot be started when this item is OFF. When this item is malfunctioning, the hybrid control system can be started by pressing and holding the power switch for a certain period of time. Start Switch1 Power switch 1 status/ON or OFF ON: Power switch pressed OFF: Power switch not pressed If the power switch is pressed for a short time, the display may not change. Use this item to determine whether the power switch input signal is malfunctioning. Start Switch2 Power switch 2 status/ON or OFF ON: Power switch pressed OFF: Power switch not pressed Backup for power switch 1. However, when the power switch is pressed and held, the control functions only when both power switch 1 and 2 are normal. Behaves the same way as power switch 1. Latch Circuit Status of IG related backup circuits/ON or OFF ON: Power switch on (IG) OFF: Power switch off Displays in almost the same manner as the IG1 and IG2 relays. When the power switch is on (ACC), OFF is displayed. IG1 Relay Monitor(Outside) IG1 relay coil voltage monitor status/ON or OFF ON: Power switch on (IG) OFF: Power switch off Use this item to determine whether the IG1 relay is malfunctioning. When the power switch is on (ACC), OFF is displayed. IG1 Relay Monitor(Inside) IG1 relay activation/ON or OFF ON: Power switch on (IG) OFF: Power switch off Use this item to determine whether the IG1 relay is malfunctioning. When the power switch is on (ACC), OFF is displayed. IG2 Relay Monitor(Outside) IG2 relay coil voltage monitor status/ON or OFF ON: Power switch on (IG) OFF: Power switch off Use this item to determine whether the IG2 relay is malfunctioning. When the power switch is on (ACC), OFF is displayed. IG2 Relay Monitor(Inside) IG2 relay activation/ON or OFF ON: Power switch on (IG) OFF: Power switch off Use this item to determine whether the IG2 relay is malfunctioning. When the power switch is on (ACC), OFF is displayed. Starter Request Signal Hybrid control system start request signal status/ON or OFF ON: With the shift lever in P and brake pedal depressed, the power switch is pressed and held OFF: After approx. 1 sec. has elapsed, the power switch is released When the hybrid control system cannot be started due to a start request signal malfunction, OFF is displayed. When the power switch is pressed, the duration of time that ON is displayed will be extremely short. As such, the power switch needs to be pressed and held for a certain amount of time. ACC Relay Monitor ACC relay activation/ON or OFF ON: Power switch on (ACC) OFF: Power switch off When the power switch is on (IG), ON is displayed. Ready Signal Ready signal/ON or OFF ON: Hybrid control system on (on (READY)) OFF: Hybrid control system off - 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/IG2 ON, ST ON, All OFF, IG1 ON or ACC ON All OFF: Power switch off (ACC and IG) ACC ON: Power switch on (ACC) IG1 ON: Power switch on (IG) (IG1 relay on) IG2 ON: Power switch on (IG) (IG2 relay on) ST ON: Sending hybrid control system 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 HV-AT - 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 hybrid control system 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 hybrid control system cannot be started due to an IG2 relay malfunction, NG is displayed. Starter SW Sig Mismatch Power switch signal 1 and 2 do not match/Yes or No Yes: Switch malfunctioning (power switch signal 1 and 2 do not match) No: Switch normal The hybrid control system can be started even if the result is Yes. However, emergency hybrid control system off while driving by pressing and holding the power switch and, when the brakes are malfunctioning, emergency hybrid control system by pressing and holding the power 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 power 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 hybrid control system 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 hybrid control system cannot be started due to a key verification error, Yes is displayed. Number of Diagnosis Code Number of DTCs/0 to 255 - - 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 power switch off and the shift lever in P. *1: Press the power switch with the brake pedal released and check that the power switch is turned on (ACC). *2: Press the power switch with the brake pedal released and check that the power switch is turned on (IG). *3: Depress the brake pedal (stop light switch is on). *4: Press the power switch with the brake pedal depressed and check that the hybrid control system starts. *5: Press the power switch with the brake pedal depressed and check that the power switch is turned off. *6: Release the brake pedal. *7: Open a door. SMART KEY 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: Power switch on (IG) OFF: Power switch off When the power switch is on (ACC), OFF is displayed. #Codes Number of DTCs/0 to 255 - - Immobiliser Engine immobiliser system determined by certification ECU (smart key ECU assembly)/ Set or Unset Set: Engine immobiliser system set (hybrid control system start prohibited) (power switch off) Unset: Engine immobiliser system unset (hybrid control system start permitted) (power switch on (ACC) or on (IG)) The hybrid control system 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 immobiliser and not linked with steering lock/unlock. Steering Lock Sleep Cond Steering lock ECU (steering lock actuator assembly) sleep availability/Yes or No Yes: Sleep available No: Sleep not available - Steering Lock Start Cond Steering lock ECU (steering lock actuator assembly) wake up signal status/Yes or No Yes: Wake up signal sent No: Wake up signal not sent - Engine Start Condition Status of hybrid control system 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: Hybrid control system start permitted NG: Hybrid control system start prohibited When Permitted is displayed, the certification ECU (smart key ECU assembly) receives an unlock confirmation signal from the steering lock ECU (steering lock actuator assembly) and starting of the hybrid control system possible. The hybrid control system cannot be started when Prohibited is displayed. Sensor Value History of malfunction of position sensor in steering lock ECU (steering lock actuator assembly)/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)/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 wheel 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 hybrid control system 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 hybrid control system start possible. The hybrid control system cannot be started when NG is displayed. S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU)/OK or NG OK: Verification result normal NG: Verification result abnormal When NG is displayed: S code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU). Steering cannot be locked. Steering cannot be unlocked (the hybrid system cannot be started). L Code Check Verification result between ID code box (immobiliser 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: code has not been registered for the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly). Steering cannot be locked. Steering cannot be unlocked (the hybrid system cannot be started). Unlock Request Receive Unlock request signal received state/OK or NG OK: Within 10 sec. of turning the power switch on (IG) or on (ACC), or of an hybrid control system start operation being performed NG: Power switch on (IG) or on (ACC), or hybrid control system start operation not performed The hybrid control system 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/OK or NG 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: Lock request signal received for 10 sec. of any of the doors being opened with shift lever in P and power 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 (immobiliser 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 (immobiliser 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 wheel 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 wheel is not locked (the hybrid control system cannot be started). Engine Start Indicator Smart 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 power switch off and the shift lever in P. *1: Press the power switch with the brake pedal released and check that the power switch is turned on (ACC). *2: Press the power switch with the brake pedal released and check that the power switch is turned on (IG). *3: Press the power switch and check that the power switch is turned off. *4: Open any of the doors (steering locked). COMBINATION METER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Vehicle Speed Meter Vehicle speed/Min.: 0, Max.: 255 Almost same as actual vehicle speed (Speedometer tester)
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 power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / (desired system) / Active Test. According to the display on the Techstream, perform the Active Test. POWER SOURCE CONTROL Tester Display Test Part Control Range Diagnostic Note P Supply for Steering Lock Smart key ECU assembly ON/OFF HINT: ON: Power is supplied. OFF: Power is not supplied. When performing this Active Test, make sure the following condition is met: The power switch is on (IG). SMART KEY Tester Display Test Part Control Range Diagnostic Note Power/Engine SW Light Power switch light OFF/ON When performing this Active Test, make sure the following condition is met: The power switch illumination is off (15 seconds or more have elapsed since it turned from on to off) and the power switch is on (ACC) or on (IG), or the hybrid control system is running.

DIAGNOSTIC TROUBLE CODE CHART

SMART KEY SYSTEM (FOR START FUNCTION)

1. *1: When the certification ECU (smart key ECU assembly) stores the DTC.
2. *2: When the power management control ECU stores the DTC.

See also:
• INITIALIZATION
• REGISTRATION
• DIAGNOSIS SYSTEM
• HOW TO PROCEED WITH TROUBLESHOOTING
• HOW TO PROCEED WITH TROUBLESHOOTING
• DIAGNOSTIC TROUBLE CODE CHART
• Power Source Mode does not Change to ON (IG and ACC)
• GENERAL INFORMATION
• CUSTOMIZE PARAMETERS
• DATA LIST / ACTIVE TEST
• DTC CHECK / CLEAR
• DIAGNOSTIC TROUBLE CODE CHART
• PROBLEM SYMPTOMS TABLE