Smart Access System (Keyless Start) (Diagnostics - Introduction): Diagnosis Lexus RX III

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

1. Use the following procedure to troubleshoot the 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 in 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 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. CHECK CAN COMMUNICATION SYSTEM* Use the Techstream to check if the CAN communication system is functioning normally. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400834-S14071915672011051800000) . Result Result Proceed to CAN communication DTC is not output A CAN communication DTC is output B B --> GO TO CAN COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400834-S03841674552011051800000) A: Go to next step
5. CHECK LIN COMMUNICATION SYSTEM* Use the Techstream to check if the LIN communication system is functioning normally. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400663-S10073063542011051800000) . Result Result Proceed to LIN Communication DTC is not output A LIN Communication DTC is output B B --> GO TO LIN COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400663-S25596778512011051800000) A: Go to next step
6. CHECK FOR DTC* Check for DTC and note any codes that are output. Refer to «DTC CHECK / CLEAR»(ref-400655-S33643380482011051800000) . Clear the DTC. Recheck for DTCs. 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»(ref-400655-S12982914172011051800000) A: Go to next step
7. INSPECT BASIC OPERATION Check that the engine starts normally when the engine switch is pushed while the brake pedal is depressed and the shift lever is in P. Check that the power source mode can be changed by pushing the engine switch. HINT: Without depressing the brake pedal, push the engine switch repeatedly. The power source mode should change from off to on (ACC), to on (IG) and back to off. With the brake pedal depressed, push the engine switch. The engine should start regardless of the original power source mode. OK Engine can start normally. NEXT: Go to next step
8. 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 10 A: Go to next step
9. OVERALL ANALYSIS AND TROUBLESHOOTING* Terminals of ECU. Refer to «TERMINALS OF ECU»(ref-400655-S19149197112011051800000) Data List / Active Test. Refer to «DATA LIST / ACTIVE TEST»(ref-400655-S15136700202011051800000) NEXT: Go to next step
10. REPAIR OR REPLACE NEXT: Go to next step
11. CONFIRMATION TEST NEXT --> END

HINT

1. Use the following procedure to troubleshoot the 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 in 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 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. CHECK CAN COMMUNICATION SYSTEM* Use the Techstream to check if the CAN communication system is functioning normally. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400834-S34883510432011051800000) . Result Result Proceed to CAN communication DTC is not output A CAN communication DTC is output B B --> GO TO CAN COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400834-S25744716402011051800000) A: Go to next step
5. CHECK LIN COMMUNICATION SYSTEM* Use the Techstream to check if the LIN communication system is functioning normally. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400663-S41486469882011051800000) . Result Result Proceed to LIN Communication DTC is not output A LIN Communication DTC is output B B --> GO TO LIN COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400663-S04734094882011051800000) A: Go to next step
6. CHECK FOR DTC* Check for DTC and note any codes that are output. Refer to «DTC CHECK / CLEAR»(ref-400655-S33643380482011051800000) . Clear the DTC. Recheck for DTCs. 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»(ref-400655-S13097784492011051800000) A: Go to next step
7. INSPECT BASIC OPERATION Check that the engine starts normally when the engine switch is pushed while the brake pedal is depressed and the shift lever is in P. Check that the power source mode can be changed by pushing the engine switch. HINT: Without depressing the brake pedal, push the engine switch repeatedly. The power source mode should change from off to on (ACC), to on (IG) and back to off. With the brake pedal depressed, push the engine switch. The engine should start regardless of the original power source mode. OK Engine can start normally. NEXT: Go to next step
8. 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 10 A: Go to next step
9. OVERALL ANALYSIS AND TROUBLESHOOTING* Terminals of ECU. Refer to «TERMINALS OF ECU»(ref-400655-S19149197112011051800000) Data List / Active Test. Refer to «DATA LIST / ACTIVE TEST»(ref-400655-S15136700202011051800000) NEXT: Go to next step
10. REPAIR OR REPLACE NEXT: Go to next step
11. CONFIRMATION TEST NEXT --> END

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 ACCESS SYSTEM WITH PUSH-BUTTON START

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 ACCESS SYSTEM WITH PUSH-BUTTON START

Scheme 1

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Scheme 3

Scheme 4

Scheme 5

Scheme 6

Scheme 7

1. CHECK POWER MANAGEMENT CONTROL ECU Disconnect the F7 and F8 connectors. Measure the voltage and resistance according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition F7-2 (STA) - Body ground W - Body ground Starter relay operation signal Always 93.8 to 136.4 ohms F7-3 (STAR) - Body ground B - Body ground Park neutral position switch signal Shift lever in P or N 93.8 to 136.4 ohms F7-3 (STAR) - Body ground B - Body ground Park neutral position switch signal Shift lever in except P or N 10 kohms or higher F7-8 (IG2D) - Body ground B - Body ground IG2 relay operation signal Always 131 to 230 ohms F7-11 (STP1) - Body ground L - Body ground Stop light switch signal Brake pedal depressed 11 to 14 V F7-11 (STP1) - Body ground L - Body ground Stop light switch signal Brake pedal released Below 1 V F8-1 (AM22) - Body ground SB - Body ground +B power supply Always 11 to 14 V F8-2 (AM21) - Body ground R - Body ground +B power supply Always 11 to 14 V F8-3 (SLP) - Body ground G - Body ground Steering lock actuator assembly position signal Always 10 kohms or higher F8-5 (GND2) - Body ground W-B - Body ground Ground Always Below 1 ohms F8-6 (GND) - Body ground BR - Body ground Ground Engine switch not pushed 10 kohms or higher F8-8 (SLR+) - Body ground L - Body ground Steering lock motor signal Always 10 kohms or higher F8-11 (CA3N) - Body ground W - Body ground CAN communication line Always 10 kohms or higher F8-12 (CA3P) - Body ground V - Body ground CAN communication line Always 10 kohms or higher F8-13 (CA1L) - Body ground R - Body ground CAN communication line Always 10 kohms or higher F8-14 (CA1H) - Body ground LG - Body ground CAN communication line Always 10 kohms or higher F8-17 (SSW2) - Body ground B - Body ground Engine switch signal Engine switch pushed Below 1 ohms F8-17 (SSW2) - Body ground B - Body ground Engine switch signal Engine switch not pushed 10 kohms or higher F8-18 (SSW1) - Body ground LG - Body ground Engine switch signal Engine switch pushed Below 1 ohms F8-20 (IG1D) - Body ground G - Body ground IG1 relay operation signal Always 50.625 to 61.875 ohms F8-24 (LIN2) - Body ground V - Body ground LIN communication line Always 10 kohms or higher If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the F7 and F8 connectors. Measure the voltage and and check pulses according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition F7-4 (NE) - F8-6 (GND) P - BR Crankshaft position sensor signal Idling with warm engine Pulse generation (See waveform 1) F7-8 (IG2D) - F8-6 (GND) B - BR IG2 signal Engine switch on (IG) Output voltage at terminal AM21 or AM22 is -2 V or more F7-8 (IG2D) - F8-6 (GND) B - BR IG2 signal Engine switch on (ACC) Below 1 V F8-3 (SLP) - F8-6 (GND) G - BR Steering lock actuator assembly signal Steering lock released Pulse generation (See waveform 2) F8-3 (SLP) - F8-6 (GND) G - BR Steering lock actuator assembly signal Shift lever in P Steering lock locked Pulse generation (See waveform 2) F8-8 (SLR+) - F8-6 (GND) L - BR Steering motor signal Steering lock motor operating Below 1 V F8-8 (SLR+) - F8-6 (GND) L - BR Steering motor signal Steering lock motor not operating 11 to 14 V F8-10 (INDW) - F8-6 (GND) Y - BR Warning signal Brake pedal depressed, shift lever in P, engine switch on (ACC, IG) 8 to 14 V F8-16 (P) - F8-6 (GND) R - BR Shift lock signal Shift lever in P 8 to 14 V F8-16 (P) - F8-6 (GND) R - BR Shift lock signal Shift lever not in P Below 1 V F8-17 (SSW2) - F8-6 (GND) B - BR Engine switch signal Engine switch not pushed Output voltage at terminal AM21 or AM22 is -2 V or more F8-17 (SSW2) - F8-6 (GND) B - BR Engine switch signal Engine switch pushed Below 1 V F8-18 (SSW1) - F8-6 (GND) LG - BR Engine switch signal Engine switch not pushed Output voltage at terminal AM21 or AM22 is -2 V or more F8-18 (SSW1) - F8-6 (GND) LG - BR Engine switch signal Engine switch pushed Below 1 V F8-19 (ACCD) - F8-6 (GND) GR - BR ACC signal Engine switch on (ACC) 8 to 14 V F8-19 (ACCD) - F8-6 (GND) GR - BR ACC signal Engine switch off Below 1 V F8-20 (IG1D) - F8-6 (GND) G - BR IG1 signal Engine switch on (IG) 8 to 14 V F8-20 (IG1D) - F8-6 (GND) G - BR IG1 signal Engine switch on (ACC) Below 1 V F8-22 (INDS) - F8-6 (GND) V - BR Vehicle condition signal Brake pedal depressed, shift lever in P 8 to 14 V F8-23 (SPD) - F8-6 (GND) L - BR Vehicle speed signal Engine switch on (IG), wheel rotated slowly Pulse generation (See waveform 3) If the result is not as specified, the ECU may have a malfunction. Using an oscilloscope, check the signal waveform of the ECU. Waveform 1 Tester Connection F7-4 (NE) - F8-6 (GND) Tool Setting 1 V/DIV., 2 ms./DIV. Vehicle Condition Idling with warm engine HINT: The wavelength becomes shorter as the engine speed increases. Waveform 2 Tester Connection F8-3 (SLP) - F8-6 (GND) Tool Setting 2 V/DIV., 100 ms./DIV. Vehicle Condition Steering lock/unlock Waveform 3 Tester Connection F8-23 (SPD) - F8-6 (GND) Tool Setting 5 V/DIV., 10 ms./DIV. Vehicle Condition Driving at approx. 20 km/h (12 mph) HINT: The wavelength becomes shorter as the vehicle speed increases.
2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Disconnect the F58 connector. Measure the voltage and resistance according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition F58-1 (+B) - Body ground LG - Body ground +B power supply Always 11 to 14 V F58-11 (SWIL) - Body ground G - Body ground Illumination signal Light control switch tail or head 8 to 14 V F58-15 (E)- Body ground W-B - Body ground Ground Always Below 1 ohms F58-16 (IG) - Body ground B - Body ground IG power supply Engine switch on (IG) 11 to 14 V F58-29 (LIN) - Body ground V - Body ground LIN communication line Always 10 kohms or higher If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the F58 connector. Measure the voltage according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition F58-11 (SWIL) - Body ground G - Body ground Illumination signal Light control switch tail or head 8 to 14 V If the result is not as specified, the ECU may have a malfunction.
3. CHECK STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) Disconnect the F37 connector. Measure the voltage and resistance according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition F37-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 ohms F37-6 (IG2) - Body ground B - Body ground Ignition power supply Engine switch on (IG) 11 to 14 V F37-6 (IG2) - Body ground B - Body ground Ignition power supply Engine switch off Below 1 V F37-7 (B) - Body ground L - Body ground +B power supply Always 11 to 14 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the F37 connector. Measure the voltage according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition F37-4 (SLP1) - F37-1 (GND) G - W-B Steering lock assembly position signal Steering locked 11 to 14 V F37-4 (SLP1) - F37-1 (GND) G - W-B Steering lock actuator position signal Steering released Below 1 V If the result is not as specified, the ECU may have a malfunction.
4. CHECK ID CODE BOX (IMMOBILISER CODE ECU) Disconnect the F45 connector. Measure the resistance and voltage according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition F45-1 (+B) - F45-8 (GND) B - W-B +B power supply Always 11 to 14 V F45-8 (GND) - Body ground W-B - Body ground Ground Always Below 1 ohms If the result is not as specified, there may be a malfunction in the wire harness.

DIAGNOSIS SYSTEM

1. DESCRIPTION Push-button start function data and the Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the function 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-400649-S41373024542011051800000) .
3. INSPECT BATTERY VOLTAGE Measure the battery voltage. Standard Voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the battery.

DTC CHECK / CLEAR

1. CHECK DTC Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Starting Control or Power Source Control / Trouble Codes. Read the DTC by following the prompts on the Techstream screen. HINT: Refer to the Techstream operator's service information for further details.
2. CLEAR DTC Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Starting Control or Power Source Control / Trouble Codes. Clear the DTC by following the directions on the Techstream screen. HINT: Refer to the Techstream operator's service information for further details.

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 engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Power Source Control / Data List. Read the Data List according to the display on the Techstream. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Shift P Signal Shift P position signal/ON or OFF ON: Shift lever in P OFF: Shift lever not in P - Steering Unlock Switch Steering lock condition/ON or OFF ON: Steering unlocked OFF: Steering locked - Stop Light Switch1 Stop light switch 1/ON or OFF ON: Brake pedal depressed OFF: Brake pedal released - Start Switch1 Start switch 1/ON or OFF ON: Engine switch pushed OFF: Engine switch not pushed - Start Switch2 Start switch 2/ON or OFF ON: Engine switch pushed OFF: Engine switch not pushed - Neutral SW / Clutch SW Neutral start switch/ON or OFF ON: Shift lever in P or N OFF: Shift lever in neither in P nor N - Latch Circuit Latch circuit/ON or OFF ON: Engine switch on (IG) or engine running OFF: Engine switch off or on (ACC) - IG1 Relay Monitor (Outside) IG1 outer relay monitor/ON or OFF ON: Engine switch on (IG), Engine running OFF: Engine switch off - IG1 Relay Monitor (Inside) IG1 inner relay monitor/ON or OFF ON: Engine switch on (IG), Engine running OFF: Engine switch off - IG2 Relay Monitor (Outside) IG2 outer relay monitor/ON or OFF ON: Engine switch on (IG), Engine running OFF: Engine switch off - IG2 Relay Monitor (Inside) IG2 inner relay monitor/ON or OFF ON: Engine switch on (IG), Engine running OFF: Engine switch off - Starter Request Signal Starter request signal monitor/ON or OFF ON: ST relay on OFF: ST relay off Engine switch is pressed and held with shift lever in P or N ACC Relay Monitor ACC relay monitor/ON or OFF ON: Engine switch on (ACC) OFF: Engine switch off - Engine Condition Engine condition/Stop or Run Stop: Engine stopped Run: Engine running - Vehicle Speed Signal Vehicle speed signal/Stop or Run Stop: Vehicle stopped Run: Vehicle running - Power Supply Condition Power supply condition/All OFF, ACC ON, IG1 ON, IG2 ON, ST ON All OFF: All relays off ACC ON: ACC relay on IG1 ON: IG1 relay on IG2 ON: IG2 relay on ST ON: ST request signal on - Powertrain Type Status of the powertrain type/HV-AT, Conventional-AT, Conventional-MT, Conventional-MMT Conventional-AT: Vehicle equipped with U660E or U660F - IG1 Circuit Status of the IG1 relay activation circuit/OK or NG OK: IG1 relay activation circuit normal NG: IG1 relay activation circuit abnormal - IG2 Circuit Status of the IG2 relay activation circuit/OK or NG OK: IG2 relay activation circuit normal NG: IG2 relay activation circuit abnormal - Starter Switch Signal Mismatch Engine switch error detection/No or Yes No: Engine switch error not detected Yes: Engine switch error detected - Park Signal Mismatch Park Signal error detection/No or Yes No: Park Signal error not detected Yes: Park Signal error detected - Steering Lock/Unlock Waiting Timed Out Steering lock/Unlock error detection/No or Yes No: Steering lock/Unlock error not detected Yes: Steering lock/Unlock error detected - Key Certification Waiting Timed Out Key certification error detection/No or Yes No: Key certification error not detected Yes: Key certification error detected - Number of Diagnosis Code Number of diagnosis code/Min.: 0, MAX.: 255 Number of DTCs will be displayed - Enter the following menus: Body Electrical / Starting Control / Data List. Read the Data List according to the display on the Techstream. STARTING CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Starter SW Status of the Starter switch / OFF or ON ON: Engine switch on (ST) OFF: Engine switch off - Shift Position P or N Status of shift position/ON or OFF ON: Shift position in P or N OFF: Shift position neither in P nor N - Starter Relay Status of the starter relay/ON or OFF ON: Starter relay on OFF: Starter relay off - Starting Control SW Status of the starter control switch/ON or OFF ON: Starter relay on OFF: Starter relay off - Engine Speed Engine speed: Min.: 0 r/min, Max.: 16383.75 r/min: 600 to 700 r/min: Idling - Number of DTCs Number of diagnosis code/Min.: 0, MAX.: 255 Number of DTCs will be displayed - Enter the following menus: Body Electrical / Smart Access / Data List. Read the Data List according to the display on the Techstream. SMART ACCESS Tester Display Measurement Item/Range Normal Condition Diagnostic Note Ignition Switch Engine switch/ON or OFF ON: Engine switch on (IG) OFF: Engine switch off - Key Low Battery Low key battery/Yes or No Yes: Key battery voltage low No: Key battery voltage normal - # Code Number of DTC recorded/Min.: 0, Max.: 225 Number of DTCs displayed - Steering Lock Sleep Cond Steering lock ECU sleep condition/Yes or No Yes: Steering lock ECU sleep mode can be entered No: Steering lock ECU sleep mode cannot be entered - Steering Lock Start Cond Steering lock ECU start signal/Yes or No Yes: Steering lock ECU sent a start signal No: Steering lock ECU not send a start signal - Engine Start Condition Engine start condition/OK or NG OK: Engine allowed to start NG: Engine not allowed to start - Sensor Value Sensor malfunction/NG (Past) or OK NG (Past): Sensor malfunction OK: No malfunction - Power Supply Short Short in ECU/NG (Past) or OK NG (Past): Short in ECU OK: No malfunction - Power Supply Open Open in ECU/NG (Past) or OK NG (Past): Open in ECU OK: No malfunction - Motor Driver Short Short in driver ECU/NG (Past) or OK NG (Past): Short in driver ECU OK: No malfunction - Motor Driver Open Open in driver ECU/NG (Past) or OK NG (Past): Open in driver ECU OK: No malfunction - Lock/Unlock Receive Steering lock command reception record/Yes or No Yes: Steering lock/unlock sign received No: Steering lock/unlock signal no received - Lock Bar Stuck Error Lock bar stuck malfunction/NG (Past) or OK NG (Past): Lock bar stuck malfunction OK: No malfunction - Push Start Error Push-button start function malfunction/NG (Past) or OK NG (Past): Malfunction in push-button start OK: No malfunction - IG2 Status IG2 voltage/ON or OFF ON: 11 to 14 V - IG (Lin) LIN bus start-up status/ON or OFF ON: LIN bus started-up OFF: LIN bus not started-up - Engine Start Request Start request condition signal/OK or NG OK: Start request condition signal received NG: Start request condition signal not received - S Code Check S code certification result/OK or NG OK: Certification confirmed NG: Certification not confirmed - L Code Check L code certification result/OK or NG OK: Certification confirmed NG: Certification not confirmed - S Code Check (Past) S code certification result (Past)/OK or NG OK: Certification confirmed (past) NG: Certification not confirmed (past) - L Code Check (Past) L code verification result (Past)/OK or NG OK: Certification confirmed (past) NG: Certification not confirmed (past) - Steering Lock Steering lock condition/Set or Unset Set: Steering lock set Unset: Steering lock unset - Steering Unlock Steering lock condition/Set or Unset Set: Steering lock set Unset: Steering lock unset - EFI Code Receive SFI communication (when DTC stored)/OK or NG OK: SFI code received NG: SFI code not received - EFI Communication SFI communication /OK or NG OK: SFI communication normal NG: SFI communication abnormal - Ignition Available Area Ignition available area/Front or All Customization status displayed - Key Low Battery Warning Low key battery warning/ON or OFF Customization status displayed
2. ACTIVE TEST HINT: Using the Techstream to perform Active Tests allows relay, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Power Source Control / Active Test. Perform the Active Test according to the display on the Techstream. POWER SOURCE CONTROL Tester Display Test Part Control Range Diagnostic Note Indicator Condition Engine switch indicator Green/Red/No Sig Operate with engine running. P Supply for Steering Lock Activate the power supply for steering lock ON/OFF Operate with engine switch on (IG), vehicle stopped Enter the following menus: Body Electrical / Starting Control / Active Test. Perform the Active Test according to the display on the Techstream. STARTING CONTROL Tester Display Test Part Control Range Diagnostic Note Activate the Starter Relay Activate the starter relay ON/OFF - Enter the following menus: Body Electrical / Smart access / Active Test. Perform the Active Test according to the display on the Techstream. SMART ACCESS Tester Display Test Part Control Range Diagnostic Note Power / Engine SW Light Engine switch illumination 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 table below.

POWER MANAGEMENT CONTROL ECU

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 information below.

POWER MANAGEMENT CONTROL ECU