DIAGNOSTIC TROUBLE CODE CHART Toyota Highlander II

DIAGNOSTIC TROUBLE CODE CHART

HINT

If a trouble code is indicated during the DTC check, check the circuit listed for that code in the table below. Then proceed to the appropriate information.

WIRELESS DOOR LOCK CONTROL SYSTEM

WIRELESS DOOR LOCK CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE CHART

HINT

1. Use the following procedures to troubleshoot the smart key system.
2. The Techstream can be used in steps 4, 5, 6 and 8.
3. When troubleshooting the smart key system using the Techstream with the power switch off, connect the Techstream to the vehicle and repeat turning any of the courtesy light switches on and off until communication between the tester and the vehicle begins (the interval between ON and OFF should be less than 1.5 sec).

1. VEHICLE BROUGHT TO WORKSHOP
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 in the problem analysis: CUSTOMER PROBLEM ANALYSIS What Vehicle model, system name When Date, time, occurrence frequency Where Road conditions Under what conditions? Driving conditions, weather conditions How did it happen? Problem symptoms
3. INSPECT BATTERY VOLTAGE Measure the battery voltage. Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
4. INSPECT CAN COMMUNICATION SYSTEM Use the Techstream to check if the CAN communication system is functioning normally. Result RESULT CHART Result Proceed to (ECU connected, communication line malfunctioning) DTC is not output. A (ECU connected, communication line malfunctioning) DTC is output. B (See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-305555-S03951628302008112800000) ) B: GO TO «CAN COMMUNICATION SYSTEM»(ref-305555-S18685253602008112800000) A: Go to next step
5. INSPECT LIN COMMUNICATION SYSTEM Use the Techstream to check if the LIN communication system is functioning normally. Result RESULT CHART Result Proceed to (ECU connected, communication line malfunctioning) DTC is not output. A (ECU connected, communication line malfunctioning) DTC is output. B (See «DIAGNOSTIC TROUBLE CODE CHART»(ref-305538-S04349390872008112800000) ) A: GO TO «LIN COMMUNICATION SYSTEM»(ref-305538-S00625233322008112800000) B: Go to next step
6. CHECK FOR DTC Check for DTCs. Based on the DTCs output, try to cause the same steering lock system DTC, engine immobiliser system DTC, wireless door lock control system DTC or smart key system (starting) DTC to be output by simulating the symptoms indicated by the DTCs. Result RESULT CHART Result Proceed to Steering lock system DTC is not output. A (See «DIAGNOSTIC TROUBLE CODE CHART»(ref-305532-S26142680292008112800000) ) Engine immobilizer system DTC is output. B (See «DIAGNOSTIC TROUBLE CODE CHART»(ref-305550-S21800875012008112800000) ) Wireless door lock control system DTC is output. C (See «DIAGNOSTIC TROUBLE CODE CHART»(ref-305569-S10399468502008112800000) ) Smart key system (starting) DTC is output. D (See «DIAGNOSTIC TROUBLE CODE CHART»(ref-305556-S20346067022008112800000) ) DTC is not output. E A: GO TO «STEERING LOCK SYSTEM»(ref-305532-S16646468032008112800000) B: GO TO «ENGINE IMMOBILISER SYSTEM»(ref-305550-S30030884542008112800000) C: GO TO «WIRELESS DOOR LOCK CONTROL SYSTEM»(ref-305569-S38703844172008112800000) D: GO TO «SMART KEY SYSTEM»(ref-305569-S12826329952008112800000) (STARTING) E: Go to next step
7. PROBLEM SYMPTOMS TABLE Result RESULT CHART 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 (See «OPERATION CHECK»(ref-305569-S23929392772008112800000) ) DATA LIST/ACTIVE TEST (See «DATA LIST / ACTIVE TEST»(ref-305569-S10145915322008112800000) ) TERMINALS OF ECU (See «TERMINALS OF ECU»(ref-305569-S28876749162008112800000) )
9. REPAIR OR REPLACE
10. CONFIRMATION TEST NEXT: END

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1. SMART KEY SYSTEM OPERATION INSPECTION HINT: Refer to «PROBLEM SYMPTOMS TABLE»(ref-305569-S10408401422008112800000) if the results of the following checks are not normal (See «PROBLEM SYMPTOMS TABLE»(ref-305569-S10408401422008112800000) ). Check the entry unlock function. Use the wireless lock operation to lock the doors. With the electrical key in your possession, touch a door's outside handle (touch sensor) and check that the door unlocks. Check the entry unlock operation's detection area. Step 1: Hold the electrical key at the same height as the door's outside handle (approximately 0.8 m (2.62 ft.)). Make sure that the direction and position of the electrical key are as shown in the illustration. Step 2: When the electrical key is brought within 0.7 to 1.0 m (2.30 to 3.28 ft.) of the vehicle, check that the system enters unlock standby mode. HINT: Unlock standby mode is signified by the electrical key's red LED illuminating. Step 3: After the system enters unlock standby mode, touch the door outside handle's sensor within 3 seconds. Check that the door unlocks. NOTE: The electrical key cannot communicate with the system within a 0.2 m (0.656 ft.) radius of each door outside handle. Step 4: Repeat steps 2 and 3 for the remaining doors. Step 5: Inspect the door electrical key oscillator's response sensitivity. Wear protective gloves, set the system to unlock standby mode, and check that touching the inner side of the door outside handle (the highlighted area in the illustration) with your fingers causes the door to unlock. NOTE: When touching the highlighted area, tapping 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 doors. Check the entry lock function. Step 1: Close all of the vehicle's doors. With the electrical key in your possession outside the vehicle, check that pressing the lock switch locks the doors. Step 2: Inspect the entry lock operation's detection area and the indoor electrical key antenna for wave leaks. Hold the electrical key at a height of 1 m (3.28 ft.) above the lower edge of the window frame. Make sure that the direction and position of the electrical key are as shown in the illustration. When the electrical key is approximately 0.3 m (0.984 ft.) from the vehicle and the lock switch is pressed, check that all the doors lock and the warning buzzer (for when the electrical key is forgotten) does not sound. If the warning buzzer sounds, the indoor electrical key antenna may have a wave leak. HINT: Do not press the lock switch with the same hand that is holding the electrical key because the electrical key cannot communicate with the system within a 0.2 m (0.656 ft.) radius of the door outside handle. The doors will not lock. Step 3: Repeat steps 1 and 2 for the remaining doors. Check the entry back door open function. Close the back door. With the electrical key in your possession, check that pressing the back door opener switch opens the back door. Inspect the entry back door open operation's detection area. Hold the electrical key at the same height as the back door opener switch (approximately 0.8 m (2.62 ft.)) and align the key with the center of the rear of the vehicle. Make sure that the direction and position of the electrical key are as shown in the illustration. When the electrical key is brought within 0.7 to 1.0 m (2.30 to 3.28 ft.) of the vehicle, check that pressing the back door opener switch opens the back door. Check the entry glass hatch open function. Close the back door. With the electrical key in your possession, check that pressing the glass hatch opener switch opens the glass hatch. Inspect the entry glass hatch open operation's detection area. Hold the electrical key at the same height as the glass hatch opener switch (approximately 0.8 m (2.62 ft.)) and align the key with the center of the rear of the vehicle. Make sure that the direction and position of the electrical key are as shown in the illustration. When the electrical key is brought within 0.7 to 1.0 m (2.30 to 3.28 ft.) of the vehicle, check that pressing the glass hatch opener switch opens the glass hatch. Check the entry ignition function. When the engine is off: With the electrical key in your possession and the brake pedal depressed, check that pressing the power switch releases the steering wheel lock and starts the engine. HINT: The engine can be started only when the power switch indicator illuminates in green. When the engine is running: With the electrical key in your possession, check that pressing the power switch stops the engine. Inspect the entry ignition operation's detection area (front). Make sure that the direction of the electrical key is as shown in the illustration. When the electrical key is in either of the 2 inspection points in the illustration, check that the engine can start. NOTE: The engine cannot be started when the electrical key is on the instrument panel or in the glove box. Inspect the entry ignition operation's detection area (center). Make sure that the direction of the electrical key is as shown in the illustration. When the electrical key is in either of the 2 inspection points in the illustration, check that the engine can start. NOTE: The engine cannot be started when the electrical key is on the instrument panel or in the glove box. Inspect the entry ignition operation's detection area (rear). Make sure that the direction of the electrical key is as shown in the illustration. When the electrical key is in either of the 2 inspection points in the illustration, check that the engine can start. NOTE: The engine cannot be started when the electrical key is on the instrument panel or in the glove box. Check the electrical key lock-in prevention function (Glass hatch). Place the electrical key in the cabin with all doors locked. Check that: 1) closing the glass hatch triggers the electrical key's wireless buzzer (which lasts approximately 2 seconds), and 2) pressing the glass hatch opener switch opens the glass hatch. Place the electrical key lock-in prevention function (Cabin). Place the electrical key in the cabin with all doors locked. Check that: 1) closing all doors triggers the electrical key's wireless buzzer (which lasts approximately 2 seconds), and 2) unlocking the doors opens the doors. Check the electrical key cancel function. Proceed to the electrical key cancel operation (See «SMART KEY SYSTEM»(ref-305569-S12826329952008112800000) ). The electrical key cancel operation disables the following functions: Entry Unlock/Lock Entry Back Door Open Entry Glass Hatch Open Electrical Key Lock-in Prevention Warning While the electrical key cancel function is ON, check that all functions in the smart key system cannot be operated. Check the answer-back function (hazard warning light flashing and buzzer sounding). ANSWER-BACK FUNCTION Entry Operation Hazard Warning Light Buzzer Entry Door Lock Flashes once Sounds once Entry Door Unlock Flashes twice Sounds twice Entry Back Door Open Does not flash Does not sound Entry Glass Hatch Open Does not flash Does not sound Check that the electrical key reminder warning buzzer sounds. Carry the electrical key in the vehicle and close the driver side door. Then turn the power switch off or on (ACC). The steering lock is released. Open the driver side door and check that the buzzer sounds intermittently. Check that the electrical 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 side door (front door courtesy light switch is off). Turn the power switch on (IG or ACC) and lock the steering wheel.
2. KEY DIAGNOSTIC MODE HINT: Key diagnostic mode checks if the electrical key transmitter within a selected oscillator/amplifier detection area is operating normally. The results are output through the wireless door lock buzzer (in right front fender). 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 / Communication Check (Key Diag Mode). Check the values by referring to the table below. Smart Key (Certification ECU (Smart Key ECU Assembly)): SMART KEY (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Tester Display Inspection Range Overhead + Driver Side Door electrical key oscillator (front LH) Overhead + Passenger Side Door electrical key oscillator (front RH) Overhead + Front Room Indoor electrical key oscillator (front) Overhead + Rear Room Indoor electrical key oscillator (center) Overhead + Back Door Outside electrical key oscillator (back door) Overhead + Back Door (inside) Indoor electrical key oscillator (rear) Immobiliser Amp Amplifier (power switch) When the electrical key transmitter is brought near the selected oscillator/antenna, check that the wireless door lock buzzer sounds.

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1. CUSTOMIZING FUNCTION WITH TECHSTREAM HINT: The items in the table below can be customized. NOTE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure to make a note of the current setting before customizing. When troubleshooting a function, first make sure that the function is set to the default setting. HINT: The following functions default settings are ON. Part of these functions can be customized. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Customize Setting. / Smart Key. Select the setting by referring to the table below. Smart Key (Certification ECU (Smart Key ECU Assembly) (SMART)): SMART KEY (CERTIFICATION ECU) CUSTOMIZE PARAMETERS Display (Item) Default Contents Setting Ignition Available Area ALL Function to choose the available area for electrical key to start engine and release the steering lock. FRONT/ALL Park Wait Time 2.5s Function that sets waiting time to permit opening door after door is locked with entry lock function. 0.5s/1.5s/2.5s/5.0s Glass Hatch Open Operation ON Function to open the glass hatch when the driver has the electrical key and presses glass hatch opener switch. ON / OFF Back Door Opening Operation LONG Function to open the back door when the driver has the electrical key and presses back door opener switch. LONG / TWICE / OFF Smart Key (Certification ECU (Smart Key ECU Assembly) (WARNING)): SMART KEY (CERTIFICATION ECU) CUSTOMIZE PARAMETERS Display (Item) Default Contents Setting Passenger Take Key ON Function to warn that the electrical key is taken out by passengers (It means that the key is taken out from except the driver's door) when engine is running. ON / OFF Key Out Range Warning ON Function to set a warning function for trying to start the engine before key is still out of its range. ON/OFF Key Low Battery Warning ON Function to set a warning function for the time when a key battery becomes weak. ON / OFF
2. ENTRY UNLOCK MODE SWITCHING FUNCTION HINT: The function only changes the entry unlock mode of the smart key system. This function is not for the wireless door lock control. To change the vehicle to entry unlock mode switching function: Driver door unlock mode: When the driver door's touch sensor is touched, only the driver door unlocks. When another touch sensor is touched, all doors unlock. All door unlock mode: When any touch sensor is touched, all doors unlock. When the power switch is off, press the LOCK button and one of the other buttons on the key at the same time for approximately 5 seconds while the key is in the actuation area. The certification ECU (smart key ECU assembly) receives this signal from the door control receiver and switches the entry unlock mode. The certification ECU (smart key ECU assembly) sounds the wireless door lock buzzer and the buzzer in the combination meter to inform the user that the mode has been switched. If the entry unlock mode needs to be switched again, press the LOCK button and one of the other three buttons on the key at the same time for approximately 5 seconds after the LED of the key goes off. NOTE: After pressing and holding the switches for 4.5 seconds, wait 5 seconds before performing the same procedure again. The certification ECU (smart key ECU assembly) receives this signal from the door control receiver and changes the smart key system to the entry unlock mode. The certification ECU (smart key ECU assembly) sounds the wireless door lock buzzer and the buzzer of the combination meter to inform the user that the mode has been switched.
3. ELECTRICAL KEY CANCEL The electrical key cancel operation disables the following functions: Entry Unlock/Lock Entry Back Door Open Entry Glass Hatch Open Electrical Key Lock-in Prevention Warning The operation procedures are as follows: Precondition: Power switch off, driver side door closed and unlocked. Unlock the driver side door once with the UNLOCK switch of the electrical key. Open the driver door within 5 seconds. Unlock the driver side door twice with the UNLOCK switch of the electrical key within 5 seconds. Repeat open and close the driver door twice within 30 seconds, and open again. (Open --> Close --> Open --> Close --> Open) Unlock the driver side door twice with the UNLOCK switch of the electrical key within 5 seconds. Open and close the driver door within 30 seconds, and open again. (Open --> Close --> Open) Close the driver door within 5 seconds. When electrical key cancel is activated, the wireless door lock buzzer sounds twice. To return to the original condition, perform the procedures again. When the original condition is returned, the wireless door lock buzzer sounds once.

HINT

Use the table below to help determine the cause of a problem. The likely causes of the problem are indicated in descending order. Check each suspected area in order. Repair or replace faulty parts or perform adjustments as necessary.

SMART KEY SYSTEM

SMART KEY SYSTEM PROBLEM SYMPTOMS CHART

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1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Disconnect the D40 certification ECU (smart key ECU assembly) connector. Measure the voltage and resistance according to the value(s) in the table below. VOLTAGE AND RESISTANCE SPECIFICATION Tester Connection Wiring Color Terminal Description Condition Specified Condition D40-1 (+B) - Body ground B - Body ground +B power supply Always 11 to 14 V D40-3 (TSW1) - Body ground LG - Body ground Entry lock switch (driver side) signal Front lock switch not pushed 10 kohms or higher D40-3 (TSW1) - Body ground LG - Body ground Entry lock switch (driver side) signal Front lock switch pushed Below 1 ohms D40-4 (TSW2) - Body ground GR - Body ground Entry lock switch (front passenger side) signal Front lock switch not pushed 10 kohms or higher D40-4 (TSW2) - Body ground GR - Body ground Entry lock switch (front passenger side) signal Front lock switch pushed Below 1 ohms D40-7 (TSW5) - Body ground BR - Body ground Back door entry lock switch signal Lock switch OFF 10 kohms or higher D40-7 (TSW5) - Body ground BR - Body ground Back door entry lock switch signal Lock switch ON Below 1 ohms D40-10 (LIN) - Body ground L - Body ground LIN line Always 10 kohms or higher D40-17 (E) - Body ground B - Body ground Ground Always Below 1 ohms D40-18 (IG) - Body ground G - Body ground Ignition power supply Power switch off Below 1 V D40-1B ()G) - Body ground G - Body ground Ignition power supply Power switch on (IG) 11 to 14 V D40-19 (ACC) - Body ground SB - Body ground ACC power supply Power switch off Below 1 V D40-19 (ACC) - Body ground SB - Body ground ACC power supply Power switch on (ACC) 11 to 14 V D40-27 (CANH) - Body ground B - Body ground CAN line Always 10 kohms or higher D40-28 (CANL) - Body ground W - Body ground CAN line Always 10 kohms or higher D40-40 (AGND) - Body ground V - Body ground Ground Always Below 1 ohms If the result is not as specified, the wire harness may have a malfunction. Reconnect the D40 certification ECU (smart key ECU assembly) connector. Measure the voltage and resistance according to the value(s) in the table below. VOLTAGE AND RESISTANCE SPECIFICATION Tester Connection Wiring Color Terminal Description Condition Specified Condition D40-5 (SEL1) - D40-17 (E) P - B Touch sensor (driver side) activation control signal The key is moved more than 5 m (16.4 ft.) away from the front door. 11 to 14 V D40-5 (SEL1) - D40-17 (E) P - B Touch sensor (driver side) activation control signal The key is moved to the door outside handle. Below 1 V D40-6 (SEL2) - D40-17 (E) Y - B Touch sensor (front passenger side) activation control signal The key is moved more than 5 m (16.4 ft.) away from the front passenger door. 11 to 14 V D40-6 (SEL2) - D40-17 (E) Y - B Touch sensor (front passenger side) activation control signal The key is moved to the door outside handle. Below 1 V D40-8 (TXCT) - Body ground O - Body ground Transponder key amplifier output signal Electrical key is not in the cabin. Below 1 V D40-8 (TXCT) - Body ground O - Body ground Transponder key amplifier output signal Electrical key is outside the cabin and the driver's door is open. Pulse generation (see «WAVEFORM 1»(ref-305569-S03761891382008112800000) ) D40-9 (CODE) - Body ground GR - Body ground Transponder key amplifier communication signal Electrical key is not in the cabin. Below 1 V D40-9 (CODE) - Body ground GR - Body ground Transponder key amplifier communication signal Electrical key is outside the cabin and the driver's door is open. Electrical key is held close to the Power switch with the brake pedal depressed. Pulse generation (see «WAVEFORM 2»(ref-305569-S29999134302008112800000) ) D40-11 (CLG5) - D40-12 (CG5B) R - W Indoor electrical key oscillator (front) sensor signal Within 30 seconds after driver side door opened and closed, power switch off Alternating between 5 V and below -5 V D40-11 (CLG5) - D40-12 (CG5B) R - W Indoor electrical key oscillator (front) sensor signal Power switch on (IG) Below 1 V D40-13 (CLG6) - D40-14 (CG6B) R - SB Indoor electrical key oscillator (center) sensor signal Within 30 seconds after driver side door opened and closed, power switch off Alternating between 5 V and below -5 V D40-13 (CLG6) - D40-14 (CG6B) R - SB Indoor electrical key oscillator (center) sensor signal Power switch on (IG) Below 1 V D40-15 (CLG7) - D40-16 (CG7B) G - O Indoor electrical key oscillator (rear) sensor signal Within 30 seconds after driver side door opened and closed, power switch off Alternating between 5 V and below -5 V D40-15 (CLG7) - D40-16 (CG7B) G - O indoor electrical key oscillator (rear) sensor signal Power switch on (IG) Below 1 V D40-21 (BZR) - Body ground R - Body ground Wireless door lock buzzer signal Wireless door lock buzzer OFF Below 1 V D40-21 (BZR) - Body ground R - Body ground Wireless door lock buzzer signal Wireless door lock buzzer ON Pulse generation D40-22 (SEN1) - D40-17 (E) O - B Touch sensor (driver side) detection signal Door outside handle touched Below 1 V D40-22 (SEN1) - D40-17 (E) O - B Touch sensor (driver side) detection signal Door outside handle not touched (the electrical key is outside the cabin) 11 to 14 V D40-23 (SEN2) - D40-17 (E) W - B Touch sensor (front passenger side) detection signal Door outside handle touched Below 1 V D40-23 (SEN2) - D40-17 (E) W - B Touch sensor (front passenger side) detection signal Door outside handle not touched (the electrical key is outside the cabin) 11 to 14 V D40-29 (RCO) - D40-17 (E) V - B Entry door control receiver power source Power switch off, all doors closed and electrical key switch on 4.5 to 5.5 V D40-29 (RCO) - D40-17 (E) V - B Entry door control receiver power source Power switch off, all doors closed and electrical key switch off Below 1 V D40-30 (VC5) - Body ground G - Body ground Transponder key amplifier power supply Electrical key is not in the cabin. Below 1 V D40-30 (VC5) - Body ground G - Body ground Transponder key amplifier power supply Electrical key is outside the cabin and the driver's door is open. 4.5 to 5.5 V D40-31 (CLG8) - D40-32 (CG8B) LG-P Outside electrical key oscillator (back door) sensor signal Back door opener switch ON Alternating between 5 V and below -5 V D40-31 (CLG8) - D40-32 (CG8B) LG-P Outside electrical key oscillator (back door) sensor signal Back door opener switch OFF Below 1 V D40-33 (CLG1) - D40-17 (E) GR - B Door electrical key oscillator (driver side) sensor signal All doors closed and locked and power switch off Alternating between 5 V and below 1 V D40-33 (CLG1) - D40-17 (E) GR - B Door electrical key oscillator (driver side) sensor signal Door unlocked or open Below 1 V D40-35 (CLG2) - D40-17 (E) LG - B Door electrical key oscillator (front passenger side) sensor signal All doors closed and locked and power switch off Alternating between 5 V and below 1 V D40-35 (CLG2) - D40-17 (E) LG - B Door electrical key oscillator (front passenger side) sensor signal Door unlocked or open Below 1 V D40-38(RDA) - D40-17(E) Y - B Entry door control receiver data input signal Power switch off, all doors closed and electrical key switch off 11 to 14 V (Pulse generation) D40-38 (RDA) - D40-17 (E) Y - B Entry door control receiver data input signal Power switch off, all doors closed and electrical key switch on Pulse generation D40-38 (RDA) - Body ground Y - Body ground Tuner input signal Power switch off, all doors closed, and the electrical key is not in the detection area. 11 to 14 V (Pulse generation) D40-38 (RDA) - Body ground Y - Body ground Tuner input signal The electrical key is in the detection area. Pulse generation D40-39 (RSSI) - D40-17 (E) B - B Entry door control receiver electric wave existence signal Power switch off, all doors closed, and the electrical key is not in the detection area. 11 to 14 V D40-39 (RSSI) - D40-17 (E) B - B Entry door control receiver electric wave existence signal Power switch off, all doors closed, and the electrical key is in the detection area. Below 1 V If the result is not as specified, the ECU may have a malfunction. Inspect using an oscilloscope. Waveform 1 (Reference): WAVEFORM 1 REFERENCE Tester Connection D40-8 (TXCT) - Body ground Tool Setting 2 V/DIV., 50 ms./DIV. Condition The electrical key is outside the cabin and the driver's door is open. Inspect using an oscilloscope. Waveform 2 (Reference): WAVEFORM 2 REFERENCE Tester Connection D40-9 (CODE) - Body ground Tool Setting 2 V/DIV., 50 ms./DIV. Condition The electrical key is outside the cabin and the driver's door is open. The electrical key is held close to the power switch with the brake pedal depressed.
2. MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK) Disconnect the 1M and 1F junction block connectors. Disconnect the D9 main body ECU (instrument panel junction block) connector. Measure the resistance according to the value(s) in the table below. RESISTANCE SPECIFICATION Tester Connection Wiring Color Terminal Description Condition Specified Condition 1M-9 (GND2) - Body ground W-B - Body ground Ground Always Below 1 ohms 1F-10 (GND1) - Body ground W-B - Body ground Ground Always Below 1 ohms D9-15 (CANN) - Body ground W - Body ground CAN line Always 10 kohms or higher D9-16 (CANP) - Body ground B - Body ground CAN line Always 10 kohms or higher If the result is not as specified, the wire harness may have a malfunction. Reconnect the 1M and 1F junction block connectors. Reconnect the D9 main body ECU (instrument panel junction block) connector. Measure the voltage according to the value(s) in the table below. VOLTAGE SPECIFICATION Tester Connection Wiring Color Terminal Description Condition Specified Condition 1M-7 (STP) - Body ground GR - Body ground Stop light switch signal Brake pedal depressed 11 to 14 V 1M-7 (STP) - Body ground GR - Body ground Stop light switch signal Brake pedal released Below 1 V If the result is not as specified, the ECU may have a malfunction.

1. CHECK DLC3 Check the DLC3 (See «HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS»(ref-305531-S36336940052008112800000) ).
2. INSPECT BATTERY VOLTAGE Measure the battery voltage. Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

1. READ 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. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. When the Techstream cannot be turned on due to a malfunction or other problem, refer to PRECAUTIONS WHEN USING the Techstream (See «SMART KEY SYSTEM»(ref-305569-S12826329952008112800000) ). 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)): SMART KEY (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) DATA LIST Tester Display Measurement Item/Range Normal Condition Diagnostic Note D-Door Touch Sensor Driver side door touch sensor/ON or OFF ON: Sensor is touched OFF: Sensor is not touched - P-Door Touch Sensor Front passenger side door touch sensor/ON or OFF ON: Sensor is touched OFF: Sensor is not touched - D-Door Trigger Switch Driver side door lock switch/ON or OFF ON: Switch is pressed OFF: Switch is not pressed - P-Door Trigger Switch Front passenger side door lock switch/ON or OFF ON: Switch is pressed OFF: Switch is not pressed - Tr/B-Door Lock SW Back door lock switch/ON or OFF ON: Switch is pushed OFF: Switch is not pushed - Ignition Switch Power switch/ON or OFF ON: Power switch is on (IG) OFF: Power switch is off - Unmatch Vehicle-ID Unmatched vehicle-ID/YES or NO YES: Key ID matches vehicle NO: Key ID does not match vehicle - No Response No response/YES or NO YES: Response from key NO: No response from key - Unmatch ode or Form Unmatched response code and format/YES or NO YES: Key ID code matches NO: Key ID code does not match - Key Low Battery Key low battery/YES or NO YES: Key battery voltage drops NO: Key battery voltage is normal - Power Save Cnt 10-Min Power save counter -10 minutes/ Min.: 0; Max.: 255 Power save counter after door LOCK/UNLOCK-10 minutes - Power Save Cnt 5-Days Power save counter - 5 days/ Min.: 0; Max.: 255 Power save counter after door LOCK/UNLOCK-5 days - Power Save Cnt 14-Days Power save counter -14 days/ Min.: 0; Max.: 255 Power save counter after door LOCK/UNLOCK-14 days - ACC Switch Power switch/ON or OFF ON: Power switch is on (ACC) OFF: Power switch is off - ID Code Difference(Resp) ID code difference/YES or NO YES: Key ID code matches NO: Key ID code does not match - C Code Difference Challenge code difference (Response)/YES or NO YES: Key ID code matches NO: Key ID code does not match - ID Code Difference ID code difference/YES or NO YES: Key ID code matches NO: Key ID code does not match - Difference Rolling Code Rolling code difference/YES or NO YES: Key rolling code matches NO: Key rolling code does not match - Auto Entry Cancel SW Entry door lock function cancel/ ON or OFF Mode status is displayed - Glass Hatch Open Operation Glass hatch open mode with vehicle locked/ON or OFF Customization status is displayed - B-Door Opening Operation Back door open mode with vehicle locked/ON or OFF Customization status is displayed - Key Low Battery Warning Key low battery warning/ON or OFF Customization status is displayed - Main Body (Main Body ECU): MAIN BODY (MAIN BODY ECU) ACTIVE TEST REFERENCE Tester Display Measurement Item/Range Normal Condition Diagnostic Note IG SW Power switch/ON or OFF ON: Power switch is on (IG) OFF: Power switch is off - D Door Courtesy SW Driver side door courtesy light switch signal/ON or OFF ON: Driver side door open OFF: Driver side door closed - P 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 - RR Door Courtesy SW Rear door courtesy light switch RH signal/ON or OFF ON: Rear door open OFF: Rear door closed - RL Door Courtesy SW Rear door courtesy light switch LH signal/ON or OFF ON: Rear door open OFF: Rear door closed - Back Door Courtesy SW Back door courtesy light switch signal/ON or OFF ON: Back door open OFF: Back door closed
2. PERFORM 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 / Active Test. Perform the Active Test according to the display on the Techstream. Smart Key (Certification ECU (Smart Key ECU Assembly)): SMART KEY (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) ACTIVE TEST REFERENCE Tester Display Test Part Control Range Diagnostic Note Overhead Tuner Power Supply ON Entry door control receiver ON/OFF - Fr-Seat Inside Transmitter Indoor electrical key oscillator (front) ON/OFF - Rr-Seat Inside Transmitter Indoor electrical key oscillator (center) ON/OFF - Inside Trunk/Backdoor Transmitter Indoor electrical key oscillator (rear) ON/OFF - Outside Trunk/Backdoor Transmitter Outside electrical key oscillator (back door) ON/OFF - P-Seat Select Front passenger side select ON/OFF - Wireless Buzzer Operation Wireless buzzer ON/OFF - Security Indicator Security indicator ON/OFF - Main Body: MAIN BODY REFERENCE Tester Display Test Part Control Range Diagnostic Note Trunk and Back-Door Open Back door opener switch signal ON/OFF