Smart Key System (For Entry Function) (Diagnostics - Introduction) (Base): Diagnosis Toyota Prius Plug-in

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

1. Use the following procedure to troubleshoot the smart key system.
2. *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
2. CUSTOMER PROBLEM ANALYSIS 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 in the problem analysis: What Vehicle model, system name When Date, time, occurrence frequency Where Road conditions Under what conditions? Running conditions, driving conditions, weather conditions How did it happen? Problem symptoms NEXT: Go to next step
3. INSPECT BATTERY VOLTAGE Measure the battery voltage with the power switch off. Standard Voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step. NEXT: Go to next step
4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* Use the Techstream to check if the CAN communication system is functioning normally. Result Result Proceed to ECU connected, communication line is normal. A ECU connected, communication line is malfunctioning. B B --> GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-551537-S08920306892013051500000) A: Go to next step
5. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM (LIN)* Use the Techstream to check if the LIN communication system (LIN) is functioning normally. Refer to «DTC CHECK / CLEAR»(ref-551612-S15990597462013051500000) . Result Result Proceed to LIN DTC is not output. A LIN DTC is output. B B --> GO TO LIN COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-551612-S17214402662013051500000) A: Go to next step
6. CHECK FOR DTC* Check for DTCs and note any codes that are output. Clear the DTCs. Recheck for DTCs. Based on the DTCs output, try to cause the same engine immobilizer system DTC, wireless door lock control system DTC or smart key system (for start function) DTC to be output by simulating the symptoms indicated by the DTCs. Result Result Proceed to DTC is not output. A Engine immobilizer system DTC is output. B Wireless door lock control system DTC is output. C Smart key system (for start function) DTC is output. D B --> GO TO ENGINE IMMOBILIZER SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-551404-S34872458032013051500000) C --> GO TO WIRELESS DOOR LOCK CONTROL SYSTEM SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-551600-S16846576932013051500000) D --> GO TO SMART KEY SYSTEM (for Start Function). Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-551394-S35715118682013051500000) A: Go to next step
7. PROBLEM SYMPTOMS TABLE Refer to Problem Symptoms Table. Refer to «PROBLEM SYMPTOMS TABLE»(ref-551601-S34668858122013051500000) . 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 9 A: Go to next step
8. OVERALL ANALYSIS AND TROUBLESHOOTING* Operation Check. Refer to «OPERATION CHECK»(ref-551601-S23215144912013051500000) Data List / Active Test. Refer to «DATA LIST / ACTIVE TEST»(ref-551601-S02641306612013051500000) Terminals of ECU. Refer to «TERMINALS OF ECU»(ref-551601-S29842577452013051500000) NEXT: Go to next step
9. REPAIR OR REPLACEMENT NEXT: Go to next step
10. CONFIRMATION TEST NEXT --> END

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1. SMART KEY SYSTEM OPERATION INSPECTION Check the entry unlock function. Use the wireless lock operation to lock the doors. With the key outside the vehicle, touch a front door outside handle assembly (touch sensor) and check that the door unlocks. Check the entry unlock operation detection area. Step 1: Hold the key at the same height as the door outside handle assembly (approximately 0.8 m (2.62 ft.)). Make sure that the direction of the key is as shown in the illustration. Step 2: Check that when the key is brought within 0.7 to 1.0 m (2.30 to 3.28 ft.) of the vehicle, the system enters unlock standby mode. HINT: When the system enters unlock standby mode, the key LED illuminates. Step 3: After the system enters unlock standby mode, touch the door outside handle assembly (touch sensor) within 3 seconds. Check that the door unlocks. NOTE: The key may not be able to communicate with the system within a 0.2 m (0.656 ft.) radius of each door outside handle assembly. Step 4: Repeat step 2 and 3 for the remaining front door. Step 5: Inspect the door outside handle assembly (touch sensor) response sensitivity. When the system is in unlock standby mode, check that touching the area shown in the illustration causes the door to unlock. NOTE: When touching the highlighted area, touching too quickly or having extended contact may not trigger the sensor. In such a case, the door will not unlock. Step 6: Repeat step 5 for the remaining front door. Check the entry lock function. NOTE: If the key is in the cabin, but is not in a detection area (on the instrument panel, rear tray, in the glove box, or on the floor), the key confinement function may not operate. This can result in the key confinement. Step 1: Confirm that all the doors lock when a lock sensor on a front door outside handle is touched with all the doors closed and unlocked while the key is outside the vehicle. Step 2: Inspect the smart door lock detection area. Hold the key 0.1 m (0.328 ft.) below the window (about 1 m (3.28 ft.) above the ground). Move the key about 0.3 m (0.984 ft.) away from the vehicle and touch the lock sensor as shown in the illustration to check that the all doors lock. HINT: Due to the key being unable to communicate with the system from within 0.2 m (0.656 ft.) of the door handle, the lock sensor may not operate when the lock sensor is touched by the same hand that is holding the key. If the key confinement prevention function buzzer sounds, radio waves from the indoor electrical oscillator may be leaking from the vehicle. Check the entry system back door open function.* *: w/ Entry System Back Door Open Function Close the back door. With the key outside the vehicle, check that pushing the back door opener switch assembly opens the back door. Inspect the entry back door open operation detection area. Hold the key at the same height as the back door opener switch assembly (approximately 0.8 m (2.62 ft.)) aligning it with the center of the rear of the vehicle. Make sure that the direction of the key is as shown in the illustration. Check that when the key is brought within 0.7 to 1.0 m (2.30 to 3.28 ft.) of the vehicle, pushing the back door opener switch assembly (opener switch) opens the back door. Check the entry back door lock function.* *: w/ Entry System Back Door Open Function Close all of the vehicle doors. With the key in your possession outside the vehicle, check that pushing the back door opener switch assembly (lock switch) locks all the doors. HINT: When pressing the lock switch, hold the key about 1 m (3.28 ft.) above the ground and about 0.3 m (0.984 ft.) away from the vehicle as shown in the illustration. Due to the key being unable to communicate with the system from within 0.2 m (0.656 ft.) of the door handle, the lock sensor may not operate when the lock sensor is touched by the same hand that is holding the key. If the key confinement prevention function buzzer sounds, radio waves from the indoor electrical oscillator may be leaking from the vehicle. Check the entry hybrid vehicle control system start function. While holding the key, confirm that the power switch indicator light illuminates green when the power switch is off, park (P) is selected and the brake pedal is depressed. With the power switch indicator illuminates green, confirm that the hybrid vehicle control system starts when the power switch is pressed. While holding the key, confirm that the power switch turns off --> on (ACC) --> on (IG) --> off every time the power switch is pressed when the brake pedal is not depressed. HINT: When the power switch is pressed with the power switch on (IG) and the shift lever is in R, N, D or B, the power switch will not turn off but remain on (ACC). With the hybrid vehicle control system running, vehicle stopped and park (P) selected, confirm that pressing the power switch turns the hybrid vehicle control system off, and opening the driver door. HINT: When the power switch is pressed with the power switch on (IG) and wthe shift lever is in R, N, D or B, the power switch will not turn off but remain on (ACC). Inspect the detection area for the entry hybrid vehicle control system start function (for front floor). Make sure that the direction of the key is as shown in the illustration. When the key is in either of the 2 inspection points shown in the illustration, check that the hybrid vehicle control system can start. NOTE: The hybrid vehicle control system may not start when the key is on the instrument panel, rear package tray or in the glove box. Inspect the detection area for the entry hybrid vehicle control system start function (for center floor). Make sure that the direction of the key is as shown in the illustration. When the key is in either of the 2 inspection points shown in the illustration, check that the hybrid vehicle control system can start. NOTE: The hybrid vehicle control system may not start when the key is on the instrument panel, rear package tray or in the glove box. Inspect the detection area for the entry hybrid vehicle control system start function (for rear floor). Make sure that the direction of the key is as shown in the illustration. When the key is in either of the 2 inspection points shown in the illustration, check that the hybrid vehicle control system can start. NOTE: The hybrid vehicle control system may not start when the key is on the instrument panel, rear package tray or in the glove box. Check the key confinement prevention function (in cabin) NOTE: Perform this check with a window open to prevent key confinement. Turn the power switch off. Put the key on a front seat or a rear seat. Close all the doors (all doors are in unlocked state). Confirm that the door lock does not operate but the wireless door lock buzzer sounds for 5 seconds when a front door lock sensor is touched. Check the key cancel function. While the power switch is on (IG), check that the back door opener switch assembly (opener switch) is the only switch that can be operated in the smart key system. While the key cancel function (smart key system cancel function) is on, check that all functions of the smart key system cannot be operated. Check the answer-back function (hazard warning light flashing and buzzer sounding). Entry Operation Hazard Warning Light Buzzer Entry Door Lock Flashes once Sounds once Entry Door Unlock Flashes twice Sounds twice Entry System Back Door Open Function Does not flash Does not sound Check that the key reminder warning buzzer sounds. With the key inside the vehicle, close the driver door. Then turn the power switch off or on (ACC). Open the driver door and check that the buzzer sounds intermittently. Check that the key reminder warning buzzer stops. When the buzzer is sounding, check that the buzzer stops sounding if either of the following is performed: Close the driver door (front door courtesy light switch is off). Turn the power switch on (IG).
2. KEY DIAGNOSTIC MODE HINT: Key diagnostic mode checks if the key within a selected oscillator detection area is operating normally. The results are output through the wireless door lock buzzer assembly. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Utility / Key Communication Check. Check the values by referring to the table below. SMART KEY (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Tester Display Inspection Range Overhead + Driver Side*1 Door electrical key oscillator (for driver side) Overhead + Passenger Side*2 Door electrical key oscillator (for front passenger side)* Overhead + Front Room*3 Indoor electrical key oscillator (for front floor) Overhead + Rear Room*4 Indoor electrical key oscillator (for center floor) Overhead + Back Door (inside)*5 Indoor electrical key oscillator (for rear floor) Overhead + Back Door*6 Outside electrical key oscillator (for rear side)* *: w/ Entry System Back Door Open Function When the key is brought near the selected oscillator, check that the wireless door lock buzzer sounds. *1: Door electrical key oscillator (for driver side) HINT: Hold the key at the same height as the door outside handle assembly (0.7 to 1.0 m (2.30 to 3.28 ft.)). Make sure that the direction of the key is as shown in the illustration. *2: Perform the same inspection above for the door electrical key oscillator (for front passenger side). *3: Indoor electrical key oscillator (for front floor) HINT: Place the key on the driver or front passenger seat cushion. *4: Indoor electrical key oscillator (for center floor) HINT: Place the key on the rear seat cushion. *5: Indoor electrical key oscillator (for rear floor) HINT: Place the key on the luggage area. *6: Outside electrical key oscillator (for rear side) HINT: Hold the key at the same height as the rear bumper upper surface and align with the center of the rear of the vehicle (0.7 to 1.0 m (2.30 to 3.28 ft.)). Make sure that the direction of the key is as shown in the illustration.

PROBLEM SYMPTOMS TABLE

HINT

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.

SMART KEY SYSTEM

1. *1: w/ Entry System Back Door Open Function
2. *2 w/o Entry System Back Door Open Function

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1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Disconnect the L62 certification ECU (smart key ECU assembly) connector. Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. Tester Connection Wiring Color Terminal Description Condition Specified Condition L62-1 (+B) - Body ground B - Body ground +B power supply Always 11 to 14 V L62-15 (E) - Body ground W-B - Body ground Ground Always Below 1 ohms L62-17 (CUTB) - Body ground Y - Body ground Dark current cut fuse pin input signal Always 11 to 14 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the L62 certification ECU (smart key ECU assembly) connector. Measure the voltage and check for pulses according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition L62-3 (CLG1) - L62-15 (E) G - W-B Door electrical key oscillator (for driver side) sensor signal Power switch off All doors closed Key not in cabin No pulse generation L62-3 (CLG1) - L62-15 (E) G - W-B Door electrical key oscillator (for driver side) sensor signal Power switch off All doors closed Key not in cabin All doors locked by wireless lock function Pulse generation L62-4 (CG1B) - L62-15 (E) R - W-B Door electrical key oscillator (for driver side) sensor signal Power switch off All doors closed Key not in cabin No pulse generation L62-4 (CG1B) - L62-15 (E) R - W-B Door electrical key oscillator (for driver side) sensor signal Power switch off All doors closed Key not in cabin All doors locked by wireless lock function Pulse generation L62-5 (CLG2) - L62-15 (E)* G - W-B Door electrical key oscillator (for front passenger side) sensor signal Power switch off All doors closed Key not in cabin No pulse generation L62-5 (CLG2) - L62-15 (E)* G - W-B Door electrical key oscillator (for front passenger side) sensor signal Power switch off All doors closed Key not in cabin All doors locked by wireless lock function Pulse generation L62-6 (CG2B) - L62-15 (E)* R - W-B Door electrical key oscillator (for front passenger side) sensor signal Power switch off All doors closed Key not in cabin No pulse generation L62-6 (CG2B) - L62-15 (E)* R - W-B Door electrical key oscillator (for front passenger side) sensor signal Power switch off All doors closed Key not in cabin All doors locked by wireless lock function Pulse generation L62-7 (CLG5) - L62-15 (E) G - W-B Indoor electrical key oscillator (for front floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) not touched No pulse generation L62-7 (CLG5) - L62-15 (E) G - W-B Indoor electrical key oscillator (for front floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) touched Pulse generation L62-8 (CG5B) - L62-15 (E) R - W-B Indoor electrical key oscillator (for front floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) not touched No pulse generation L62-8 (CG5B) - L62-15 (E) R - W-B Indoor electrical key oscillator (for front floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) touched Pulse generation L62-16 (IG) - Body ground BE - Body ground IG power supply Power switch off Below 1 V L62-16 (IG) - Body ground BE - Body ground IG power supply Power switch on (IG) 11 to 14 V L62-18 (TSW1) - L62-15 (E) B - W-B Lock sensor (for driver side) detection signal Power switch off All doors closed Lock sensor (for driver side) not touched Pulse generation L62-18 (TSW1) - L62-15 (E) B - W-B Lock sensor (for driver side) detection signal Power switch off All doors closed Lock sensor (for driver side) touched Below 2 V L62-19 (TSW2) - L62-15 (E)* B - W-B Lock sensor (for front passenger side) detection signal Power switch off All doors closed Lock sensor (for front passenger side) not touched Pulse generation L62-19 (TSW2) - L62-15 (E)* B - W-B Lock sensor (for front passenger side) detection signal Power switch off All doors closed Lock sensor (for front passenger side) touched Below 2 V L62-20 (SEN1) - L62-15 (E) Y - W-B Touch sensor (for driver side) detection signal Power switch off All doors closed Key not in detection area Touch sensor (for driver side) not touched Pulse generation L62-20 (SEN1) - L62-15 (E) Y - W-B Touch sensor (for driver side) detection signal Power switch off All doors closed Key not in detection area Touch sensor (for driver side) touched Below 2 V L62-21 (SEN2) - L62-15 (E)* Y - W-B Touch sensor (for front passenger side) detection signal Power switch off All doors closed Key not in detection area Touch sensor (for front passenger side) not touched Pulse generation L62-21 (SEN2) - L62-15 (E)* Y - W-B Touch sensor (for front passenger side) detection signal Power switch off All doors closed Key not in detection area Touch sensor (for front passenger side) touched Below 2 V L62-22 (TSW5) - L62-15 (E)* GR - W-B Back door opener switch assembly (opener switch) signal Back door opener switch assembly (opener switch) not pushed Pulse generation L62-22 (TSW5) - L62-15 (E)* GR - W-B Back door opener switch assembly (opener switch) signal Back door opener switch assembly (opener switch) pushed Below 1 V L62-23 (TSW6) - L62-15 (E)* LG - W-B Back door opener switch assembly (lock switch) signal Back door opener switch assembly (lock switch) not pushed Pulse generation L62-23 (TSW6) - L62-15 (E)* LG - W-B Back door opener switch assembly (lock switch) signal Back door opener switch assembly (lock switch) pushed Below 1 V L62-24 (CLG6) - L62-15 (E) GR - W-B Indoor electrical key oscillator (for center floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) not touched No pulse generation L62-24 (CLG6) - L62-15 (E) GR - W-B Indoor electrical key oscillator (for center floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) touched Pulse generation L62-25 (CG6B) - L62-15 (E) BR - W-B Indoor electrical key oscillator (for center floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) not touched No pulse generation L62-25 (CG6B) - L62-15 (E) BR - W-B Indoor electrical key oscillator (for center floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) touched Pulse generation L62-26 (CLG7) - L62-15 (E) G - W-B Indoor electrical key oscillator (for rear floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) not touched No pulse generation L62-26 (CLG7) - L62-15 (E) G - W-B Indoor electrical key oscillator (for rear floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) touched Pulse generation L62-27 (CG7B) - L62-15 (E) R - W-B Indoor electrical key oscillator (for rear floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) not touched No pulse generation L62-27 (CG7B) - L62-15 (E) R - W-B Indoor electrical key oscillator (for rear floor) sensor signal Power switch off All doors closed Key not in cabin Door outside handle assembly (lock sensor) touched Pulse generation L62-32 (POS1) - L62-15 (E) L - W-B Lock or unlock sensor (for driver side) output signal Power switch off 9 to 14 V L62-32 (POS1) - L62-15 (E) L - W-B Lock or unlock sensor (for driver side) output signal Power switch on (IG) Below 2 V L62-33 (POS2) - L62-15 (E)* L - W-B Lock or unlock sensor (for front passenger side) output signal Power switch off 9 to 14 V L62-33 (POS2) - L62-15 (E)* L - W-B Lock or unlock sensor (for front passenger side) output signal Power switch on (IG) Below 2 V L63-5 (RC0) - L62-15 (E) R - W-B Door control receiver power source Power switch off Lock or unlock switch on key not pushed Below 1 V L63-5 (RC0) - L62-15 (E) R - W-B Door control receiver power source Power switch off Lock or unlock switch on key pushed 4.5 to 5.5 V L63-15 (RDA) - L62-15 (E) Y - W-B Door control receiver data input signal Power switch off All doors closed Transmitter switch not pressed 11 to 14 V pulse generation at regular intervals L63-15 (RDA) - L62-15 (E) Y - W-B Door control receiver data input signal Power switch off All doors closed Transmitter switch pressed Pulse generation L63-16 (RSSI) - L62-15 (E) V - W-B Door control receiver electric wave existence signal Power switch off All doors locked Lock or unlock switch on key not pushed 11 to 14 V L63-16 (RSSI) - L62-15 (E) V - W-B Door control receiver electric wave existence signal Power switch off All doors locked Lock or unlock switch on key pushed Below 2 V L63-19 (CLG8) - L62-15 (E)* G - W-B Outside electrical key oscillator (for rear side) sensor signal Power switch off All doors closed Back door opener switch assembly off No pulse generation L63-19 (CLG8) - L62-15 (E)* G - W-B Outside electrical key oscillator (for rear side) sensor signal Power switch off All doors closed Back door opener switch assembly on Pulse generation L63-20 (CG8B) - L62-15 (E)* R - W-B Outside electrical key oscillator (for rear side) sensor signal Power switch off All doors closed Back door opener switch assembly off No pulse generation L63-20 (CG8B) - L62-15 (E)* R - W-B Outside electrical key oscillator (for rear side) sensor signal Power switch off All doors closed Back door opener switch assembly on Pulse generation *: w/ Entry System Back Door Open Function If the result is not as specified, the certification ECU (smart key ECU assembly) may have a malfunction.
2. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Disconnect the 2B and 2C junction block connectors. TEXT IN ILLUSTRATION *A Main body ECU (multiplex network body ECU) with 3 connectors - - *1 Main body ECU (multiplex network body ECU) *2 3 connectors TEXT IN ILLUSTRATION *A Main body ECU (multiplex network body ECU) with 1 connector - - *1 Main body ECU (multiplex network body ECU) *2 1 connector Disconnect the A and L8* main body ECU connector. Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connectors disconnected. Tester Connection Wiring Color Terminal Description Condition Specified Condition 2B-6 (GND1) - Body ground W-B - Body ground Ground Always Below 1 ohms 2C-18 (BECU) - Body ground Y - Body ground Battery power supply Power switch off 11 to 14 V L8-3 (GND2) - Body ground W-B - Body ground Ground Always Below 1 ohms A-29 (ACC) - Body ground - ACC power supply Power switch on (ACC) 11 to 14 V A-29 (ACC) - Body ground - ACC power supply Power switch off Below 1 V A-31 (ALTB) - Body ground - Battery power supply Power switch off 11 to 14 V A-32 (IG) - Body ground - Power switch power supply Power switch on (IG) 11 to 14 V A-32 (IG) - Body ground - Power switch power supply Power switch off Below 1 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the 2B and 2C junction block connectors. Reconnect the A main body ECU connector. Measure the voltage according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition 2B-1 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output (except driver side) Driver or front passenger side door control switch off Below 1 V 2B-1 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output (except driver side) Driver or front passenger side door control switch unlocked 11 to 14 V 2B-8 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Driver or front passenger side door control switch off Below 1 V 2B-8 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Driver or front passenger side door control switch locked 11 to 14 V 2B-5 (ACTD) - Body ground B - Body ground Driver side door lock motor unlock drive output Driver or front passenger side door control switch off Below 1 V 2B-5 (ACTD) - Body ground B - Body ground Driver side door lock motor unlock drive output Driver or front passenger side door control switch unlocked 11 to 14 V 2D-36 (FRCY) - Body ground BR - Body ground Front passenger side door courtesy switch input Front passenger side door open Below 1 V 2D-36 (FRCY) - Body ground BR - Body ground Front passenger side door courtesy switch input Front passenger side door closed 11 to 14 V 2D-35 (FLCY) - Body ground V - Body ground Driver side door courtesy switch input Driver door open Below 1 V 2D-35 (FLCY) - Body ground V - Body ground Driver side door courtesy switch input Driver door closed 11 to 14 V 2D-25 (LSR) - Body ground GR - Body ground Rear door LH lock position switch input Rear door LH unlocked Below 1 V 2D-25 (LSR) - Body ground GR - Body ground Rear door LH lock position switch input Power switch off, all doors closed and rear door LH locked 11 to 14 V 2B-29 (LSR) - Body ground GR - Body ground Rear door RH lock position switch input Rear door RH unlocked Below 1 V 2B-29 (LSR) - Body ground GR - Body ground Rear door RH lock position switch input Power switch off, all doors closed and rear door RH locked 11 to 14 V L7-6 (LRCY) - Body ground G - Body ground Rear door courtesy light switch input Rear door open Below 1 V L7-6 (LRCY) - Body ground G - Body ground Rear door courtesy light switch input Rear door closed 11 to 14 V L7-7 (LSFL) - Body ground GR - Body ground Driver door lock position switch input Driver door unlocked Below 1 V L7-7 (LSFL) - Body ground GR - Body ground Driver door lock position switch input Power switch off, all doors closed and driver door locked 11 to 14 V L7-9 (L1) - Body ground LG - Body ground Front passenger side door control switch input Front passenger side door control switch locked Below 1 V L7-9 (L1) - Body ground LG - Body ground Front passenger side door control switch input Front passenger side door control switch off 11 to 14 V L7-10 (UL1) - Body ground BR - Body ground Front passenger side door control switch input Front passenger side door control switch unlocked Below 1 V L7-10 (UL1) - Body ground BR - Body ground Front passenger side door control switch input Front passenger side door control switch off 11 to 14 V L7-11 (L2) - Body ground G - Body ground Driver door key-linked lock input Driver door key cylinder turned to lock Below 1 V L7-11 (L2) - Body ground G - Body ground Driver door key-linked lock input Driver door key cylinder off 11 to 14 V L7-18 (LSFR) - Body ground LG - Body ground Front passenger side door lock position switch input Front passenger side door unlocked Below 1 V L7-18 (LSFR) - Body ground LG - Body ground Front passenger side door lock position switch input Power switch off, all doors closed and front passenger side door locked 11 to 14 V L7-19 (BCTY) - Body ground L - Body ground Back door courtesy light switch input Back door open Below 1 V L7-19 (BCTY) - Body ground L - Body ground Back door courtesy light switch input Back door closed 11 to 14 V L7-23 (BDSU) - Body ground*1 GR - Body ground Back door opener switch input Back door opener switch pushed Below 1 V L7-23 (BDSU) - Body ground*1 GR - Body ground Back door opener switch input Back door opener switch not pushed 11 to 14 V L7-24 (UL3) - Body ground V - Body ground Driver door key-linked unlock input Driver door key cylinder turned to unlock Below 1 V L7-24 (UL3) - Body ground V - Body ground Driver door key-linked unlock input Driver door key cylinder off 11 to 14 V *1: w/o Entry System Back Door Open Function If the result is not as specified, the main body ECU (multiplex network body ECU) may have a malfunction.
3. COMBINATION METER ASSEMBLY Disconnect the L27 combination meter assembly connector. Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition L27-18 (B) - Body ground R - Body ground Battery Power switch off 11 to 14 V L27-30 (ES) - Body ground BR - Body ground Ground (Signal ground) Always Below 1 ohms If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the L27 combination meter assembly connector. Measure the voltage according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition L27-19 (IG+) - Body ground L - Body ground Power switch signal Power switch off Below 1 V L27-19 (IG+) - Body ground L - Body ground Power switch signal Power switch on (IG) 11 to 14 V If the result is not as specified, the combination meter assembly may have a malfunction.

DIAGNOSIS SYSTEM

1. DESCRIPTION The certification ECU (smart key ECU assembly) control the vehicle smart key system functions. Smart key system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the smart key system. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
2. CHECK DLC3 Check the DLC3. Refer to «GENERAL INFORMATION»(ref-551389-S40560400582013051500000) .
3. INSPECT BATTERY VOLTAGE Measure the battery voltage with the power switch off. Standard Voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the battery.

DTC CHECK / CLEAR

1. CHECK DTC Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Trouble Codes. Check the details of the DTC(s). Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-551601-S08536254872013051500000) .
2. CLEAR DTC Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Trouble Codes. Clear the DTCs.

DATA LIST / ACTIVE TEST

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 / Smart Key or Main Body / Data List. Read the Data List according to the display on the Techstream. SMART KEY (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Tester Display Measurement Item/Range Normal Condition Diagnostic Note D-Door Touch Sensor Driver side door touch sensor / ON or OFF ON: Sensor touched OFF: Sensor not touched - P-Door Touch Sensor*1 Front passenger side door touch sensor / ON or OFF ON: Sensor touched OFF: Sensor not touched - D-Door Trigger Switch Driver side door lock sensor / ON or OFF ON: Sensor touched OFF: Sensor not touched - P-Door Trigger Switch*1 Front passenger side door lock sensor / ON or OFF ON: Sensor touched OFF: Sensor not touched - Tr/B-Door Lock SW*1 Back door opener switch assembly (lock switch) / ON or OFF ON: Back door opener switch assembly (lock switch) pushed OFF: Back door opener switch assembly (lock switch) not pushed - Tr/B-Door Unlock SW*1 Back door opener switch assembly (opener switch) / ON or OFF ON: Back door opener switch assembly (opener switch) pushed OFF: Back door opener switch assembly (opener switch) not pushed - Ignition Switch Power switch on (IG) / ON or OFF ON: Power switch on (IG) or hybrid vehicle control system started OFF: Power switch off - Unmatched Vehicle-ID No communication condition between vehicle and key (vehicle-ID) / Yes or No Yes: Key ID code not matched to vehicle No: Key ID code matched to vehicle - No Response No communication condition between vehicle and key (response) / Yes or No Yes: Key ID code not matched to vehicle No: Key ID code matched to vehicle - Unmatch Code or Form No communication condition between vehicle and key (response code and format) / Yes or No Yes: Key ID code not matched to vehicle No: Key ID code matched to vehicle - Key Low Battery Low key battery / Yes or No Yes: Key battery voltage low No: Key battery voltage normal - Power Save Cnt 10 Min Power save counter - 10 minutes / Min: 0; Max: 255 Within range from 0 to 255 - Power Save Cnt 5 Day Power save counter - 5 days / Min: 0; Max: 255 Within range from 0 to 255 - Power Save Cnt 14 Day Power save counter - 14 days / Min: 0; Max: 255 Within range from 0 to 255 - ID Code Difference(Resp) No communication condition between vehicle and key (ID code) / Yes or No Yes: Key ID code not matched to vehicle No: Key ID code matched to vehicle - C Code Difference No communication condition between vehicle and key (challenge code) / Yes or No Yes: Key ID code not matched to vehicle No: Key ID code matched to vehicle - Auto Entry Cancel SW Entry function cancel / ON or OFF Mode status displayed - Door Unlock Mode2*1, *2 Door Unlock Mode / All or Driver Customization status displayed - Ignition Available Area Ignition available area / Front or All Customization status displayed - Parking Wait Time Parking wait time / 0.5s, 1.5s, 2.5s or 5s Customization status displayed - B-Dr Opening Operation*1 Back door opening operation / Long, Twice or OFF Customization status displayed - Touch Activation Over Threshold Consecutive entry lock operation / Active or Not Active Customization status displayed - Key Low Battery Warning Low key battery warning / ON or OFF Customization status displayed - *1: w/ Entry System Back Door Open Function *2: except for Korea and Mexico MAIN BODY (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Tester Display Measurement Item/Range Normal Condition Diagnostic Note ACC SW Power switch on (ACC) / ON or OFF ON: Power switch on (ACC) OFF: Power switch off - IG SW Power switch on (IG) / ON or OFF ON: Power switch on (IG) OFF: Power switch off - RR Door Courtesy SW Rear door courtesy light switch signal/ON or OFF ON: Rear door RH or LH open OFF: Rear door RH and LH closed - RL Door Courtesy SW Rear door courtesy light switch signal/ON or OFF ON: Rear door RH or LH open OFF: Rear door RH and LH closed - Back Door Courtesy SW Back door courtesy switch signal/ON or OFF ON: Back door open OFF: Back door closed - Back Door Open Back door lock/Permit or Prohibit Permit: Back door unlocked Prohibit: Back door locked - Door Lock SW-Lock Front passenger side door control switch lock signal/ON or OFF ON: Lock side of front passenger side door control switch pushed OFF: Lock side of front passenger side door control switch not pushed - Door Lock SW-Unlock Front passenger side door control switch unlock signal/ON or OFF ON: Unlock side of front passenger side door control switch pushed OFF: Unlock side of front passenger side door control switch not pushed - Door Key SW-Lock Driver door key-linked lock/unlock switch lock signal/ON or OFF ON: Driver door key cylinder turned to lock position OFF: Driver door key cylinder not turned to lock position - D Door Key SW-UL Driver door key-linked lock/unlock switch unlock signal/ON or OFF ON: Driver door key cylinder turned to unlock position OFF: Driver door key cylinder not turned to unlock position - FR Door Lock Pos Front passenger side door lock position switch signal/LOCK or UNLOCK LOCK: Front passenger side door locked UNLOCK: Front passenger side door unlocked - FR Door Courtesy SW Front passenger side door courtesy light switch signal/ON or OFF ON: Front passenger side door open OFF: Front passenger side door closed - FL Door Lock Pos Driver door lock position switch signal/LOCK or UNLOCK LOCK: Driver door locked UNLOCK: Driver door unlocked - FL Door Courtesy SW Driver door courtesy light switch signal/ON or OFF ON: Driver door open OFF: Driver door closed - Back Door Open Handle SW Back door opener switch signal/ON or OFF ON: Back door opener switch pushed OFF: Back door opener switch not pushed - RR-Door Lock Pos SW Rear door lock position switch signal/LOCK or UNLOCK LOCK: Rear door RH or LH locked UNLOCK: Rear door RH and LH unlocked - RL-Door Lock Pos SW Rear door lock position switch signal/LOCK or UNLOCK LOCK: Rear door RH or LH locked UNLOCK: Rear door RH and LH unlocked
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 / Smart Key or Main Body / Active Test. Perform the Active Test according to the display on the Techstream. SMART KEY (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Tester Display Test Part Control Range Diagnostic Note Overhead Tuner Power Supply ON Door control receiver assembly ON/OFF - MAIN BODY (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Tester Display Test Part Control Range Diagnostic Note Trunk and Back-door Open Back door lock motor ON/OFF

DIAGNOSTIC TROUBLE CODE CHART

HINT

If a trouble code is stored during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See" below.

CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

*: w/ Entry System Back Door Open Function