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Smart Key System (Keyless Start) (Diagnostic Codes & Symptom Tests): Other Scion FR-S I

Starter ~9528 words

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (POWER SOURCE) Disconnect the D48 certification ECU (smart key ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition D48-2 (+B) - Body ground Always 9.5 to 16 V TEXT IN ILLUSTRATION *a Rear view of harness connected (to Certification ECU (Smart Key ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D48-11 (GND) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *a Rear view of harness connected (to Certification ECU (Smart Key ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Reconnect the D48 certification ECU (smart key ECU assembly) connector. TEXT IN ILLUSTRATION *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) - - Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D41-6 (IG1D) - Body ground Engine switch on (ACC) --> Engine switch on (IG) Below 1 V --> 9 V or higher D48-9 (IG2D) - Body ground Engine switch on (ACC) --> Engine switch on (IG) Below 1 V --> 9 V or higher NG --> See step 5 OK --> See step 4
  4. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - ]»(ref-612229-S19729599862014042900000)
  5. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  1. CHECK HARNESS AND CONNECTOR (POWER SOURCE) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (GROUND) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - CERTIFICATION ECU) Disconnect the D41 certification ECU (smart key ECU assembly) connector. Disconnect the 3A instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D41-4 (ACCD) - 3A-20 Always Below 1 ohms 3A-12 - Body ground Always Below 1 ohms D41-4 (ACCD) or 3A-20 - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (ACC1, ACC2 RELAY) Remove the instrument panel junction block assembly. Refer to «REMOVAL [07/2013 - ]»(ref-612382-S37239791822014042900000) . Remove the main body ECU (network gateway ECU) from the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Condition Specified Condition 3E-1 - 3B-28 When battery voltage absent 10 kohms or higher When battery voltage is applied to terminals 3A-20 and 3A-12 Below 1 ohms 3E-1 - 3A-10 When battery voltage absent 10 kohms or higher When battery voltage is applied to terminals 3A-20 and 3A-12 Below 1 ohms NG --> See step 8 OK: Go to next step
  5. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Install the main body ECU (network gateway ECU) to the instrument panel junction block assembly. Refer to «INSTALLATION [07/2013 - ]»(ref-612382-S26111329472014042900000) . Install the instrument panel junction block assembly. Reconnect the D41 certification ECU (smart key ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D41-4 (ACCD) - Body ground Engine switch off --> Engine switch on (ACC) Below 1 V --> 8.5 V or higher TEXT IN ILLUSTRATION *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) NG --> See step 6 OK --> See step 7
  6. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  7. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - ]»(ref-612229-S19729599862014042900000)
  8. REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [07/2013 - ]»(ref-612382-S37239791822014042900000)
  1. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - ECM) Disconnect the D48 certification ECU (smart key ECU assembly) connector. Disconnect the A33 ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Condition Connection Specified Condition D48-7 (STSW) - A33-17 (STSW) Always Below 1 ohms D48-11 (GND) - Body ground Always Below 1 ohms D48-7 (STSW) or A33-17 (STSW) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  2. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Reconnect the D48 certification ECU (smart key ECU assembly) connector. Reconnect the A33 ECM connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Condition Connection Specified Condition D48-7 (STSW) - D48-11 (GND) With the brake pedal*1 or clutch pedal*2 depressed, the engine switch is pressed and held (starter on) --> After approx. 1 sec. has elapsed, the engine switch is released (starter off) 2 V or less --> 9 V or higher *1: for Automatic Transmission *2: for Manual Transmission TEXT IN ILLUSTRATION *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) NG --> See step 4 OK --> See step 3
  3. GO TO SFI SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - ]»(ref-612245-S29231164502014042900000)
  4. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  1. CHECK HARNESS AND CONNECTOR Disconnect the D40 and D48 certification ECU (smart key ECU assembly) connectors. Disconnect the A35 ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Condition Connection Specified Condition D40-28 (ACCR) - A35-32 (ACCR) Always Below 1 ohms D48-11 (GND) - Body ground Always Below 1 ohms D40-28 (ACCR) or A35-32 (ACCR) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  2. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Reconnect the D40 and D48 certification ECU (smart key ECU assembly) connectors. Reconnect the A35 ECM connector. Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) - - Standard Voltage Tester Condition Connection Specified Condition D40-28 (ACCR) - D48-11 (GND)*1 With the brake pedal*1 or clutch pedal*2 depressed, the engine switch is pressed and held (starter on) --> After approx. 1 sec. has elapsed, the engine switch is released (starter off) 2 V or less --> 9 V or higher *1: for Automatic Transmission *2: for Manual Transmission NG --> See step 4 OK --> See step 3
  3. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  4. REPLACE ECM. Refer to «REMOVAL [12/2013 - ]»(ref-612354-S32380777172014042900000)
  1. CHECK FOR WATER DAMAGE Check the certification ECU (smart key ECU assembly), peripheral components, and wire harnesses for traces of water. RESULT Result Proceed to There are traces of water A There are no traces of water B B --> See step 2 A --> TAKE APPROPRIATE MEASURES AGAINST CAUSE OF WATER DAMAGE AND REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
  2. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  1. READ VALUE USING TECHSTREAM (VEHICLE SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Chassis / ABS/VSC/TRC / Data List. According to the display on the Techstream, read the Data List. ABS/VSC/TRC Tester Display Measurement Item/Range Normal Condition Diagnostic Note Vehicle Speed Vehicle speed/Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph) Almost same as actual vehicle speed (Speedometer tester) - OK The Data List value is approximately the same as the actual vehicle speed. NG --> See step 7 OK: Go to next step
  2. READ VALUE USING TECHSTREAM (VEHICLE SPEED SIGNAL) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Vehicle Speed Signal Vehicle moving or stationary / Stop or Run Run: Vehicle moving at 5 km/h (3 mph) or more Stop: Vehicle stopped - OK Stop (vehicle stopped) or Run (vehicle moving) appears on the screen according to the vehicle speed. NG --> See step 3 OK --> See step 7
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (GROUND) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - COMBINATION METER ASSEMBLY) Disconnect the D41 certification ECU (smart key ECU assembly) connector. Disconnect the A5 brake actuator assembly (skid control ECU) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D41-27 (SPD) - A5-2 (SPD) Always Below 1 ohms D41-27 (SPD) or A5-2 (SPD) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) TEXT IN ILLUSTRATION *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) - - Reconnect the A5 brake actuator assembly (skid control ECU) connector. Reconnect the D41 certification ECU (smart key ECU assembly) connector. Using an oscilloscope, check the vehicle speed input signal waveform from the combination meter at the terminal of the certification ECU (smart key ECU assembly). Check the signal waveform according to the conditions in the table below. Item Content Tester Connection D41-27 (SPD) - D48-11 (GND) Tool Setting 5 V/DIV., 100 ms./DIV. Condition Engine switch on (IG), vehicle being driven at approx. 5 km/h (3 mph) OK The waveform is similar to that shown in the illustration. HINT: When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows. NG --> See step 8 OK --> See step 9
  7. GO TO VEHICLE STABILITY CONTROL SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [07/2013 - ]»(ref-612232-S28713318772014042900000)
  8. GO TO VEHICLE STABILITY CONTROL SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [07/2013 - ]»(ref-612232-S28713318772014042900000)
  9. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  1. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH1) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Stop Light Switch1 State of brake pedal / OFF or ON OFF: Brake pedal released ON: Brake pedal depressed Use this item to determine whether the stop light switch is malfunctioning. The engine cannot be started when this item is "OFF". When this item is malfunctioning, the engine can be started by pressing and holding the engine switch for a certain period of time. OK ON (brake pedal depressed) and OFF (brake pedal released) appear on the screen. RESULT Result Proceed to NG A OK B B --> See step 5 A: Go to next step
  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (GROUND) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (NOISE FILTER - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Disconnect the D48 certification ECU (smart key ECU assembly) connector. Disconnect the A13 noise filter connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D48-18 (STP1) - A13-4 Always Below 1 ohms D48-18 (STP1) or A13-4 - Body ground Always 10 kohms or higher Reconnect the A13 noise filter connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition D48-18 (STP1) - Body ground Brake pedal released Below 1 V Brake pedal depressed 9 V or higher TEXT IN ILLUSTRATION *a Rear view of wire harness connector (Certification ECU (Smart Key ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
  5. CHECK HARNESS AND CONNECTOR (NOISE FILTER - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 3B instrument panel junction block assembly connector. Disconnect the A13 noise filter connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3B-32 - A13-4 Always Below 1 ohms 3B-32 or A13-4 - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [07/2013 - ]»(ref-612382-S37239791822014042900000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition MB-22 (STP) - 3B-32 Always Below 1 ohms TEXT IN ILLUSTRATION *a Component without harness connected (Instrument Panel Junction Block Assembly) - - NG --> See step 9 OK --> See step 8
  7. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  8. REPLACE MAIN BODY ECU. Refer to «REMOVAL [07/2013 - ]»(ref-612382-S37239791822014042900000)
  9. REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [07/2013 - ]»(ref-612382-S37239791822014042900000)
  1. CHECK FOR DTC (LIN COMMUNICATION SYSTEM) Clear the DTCs. Refer to «DTC CHECK / CLEAR [12/2013 - ]»(ref-612242-S17246768852014042900000) . OK LIN communication system DTC B2785 is not output simultaneously. HINT: If the steering wheel cannot be locked or unlocked, the engine switch cannot be turned on (IG) and the engine cannot be started. If LIN communication is not available, the steering wheel cannot be locked or unlocked. NG --> See step 9 OK: Go to next step
  2. READ VALUE USING TECHSTREAM (STEERING UNLOCK SWITCH) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Steering Unlock Switch State of steering unlock sensor signal output from steering lock actuator assembly/OFF or ON OFF: Steering locked ON: Steering unlocked When the shift lever is in P* and the engine switch is off, if any door is opened or closed, the steering is locked. When the electrical key transmitter sub-assembly is inside the vehicle and the engine switch is turned on (ACC) or on (IG), the steering unlocks. The engine cannot be started when the steering unlock signal is off. *: for Automatic Transmission RESULT Result Proceed to Data List item does not change A Data List item changes B B --> See step 7 A: Go to next step
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (GROUND) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. INSPECT STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) Reconnect the D59 steering lock ECU (steering lock actuator assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Positive (+) tester probe --> D59-4 (SLP) Negative (-) tester probe --> Body ground Steering locked* 10 kohms or higher Positive (+) tester probe --> D59-4 (SLP) Negative (-) tester probe --> Body ground Steering unlocked* Below 1 ohms HINT: *: If any of the doors are opened then closed with the shift lever in P* and the engine switch off, the steering wheel will be locked. If the engine switch is then turned on (ACC) or on (IG), the steering wheel will be unlocked. DTC B2285 may be stored due to a malfunction in the steering lock ECU (steering lock actuator assembly). The steering lock position signal and unlock position signal are sent from the steering lock ECU (steering lock actuator assembly) to the certification ECU (smart key ECU assembly) individually. *: for Automatic Transmission TEXT IN ILLUSTRATION *a Component with harness connected (Steering Lock ECU (Steering Lock Actuator Assembly)) NG --> See step 7 OK: Go to next step
  6. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)) Disconnect the D41 certification ECU (smart key ECU assembly) connector. Disconnect the D59 steering lock ECU (steering lock actuator assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D41-26 (SLP) - D59-4 (SLP) Always Below 1 ohms D41-26 (SLP) or D59-4 (SLP) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 8
  7. REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612396-S04249245342014042900000)
  8. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  9. GO TO LIN COMMUNICATION SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART [12/2013 - ]»(ref-612424-S22318455712014042900000)
  1. READ VALUE USING TECHSTREAM (ENGINE CONDITION, ENGINE SPEED) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Engine Condition Condition of engine / Stop or Run Stop: Engine is stopped Run: Engine is running - Enter the following menus: Powertrain / Engine / Data List. According to the display on the Techstream, read the Data List. ENGINE Tester Display Measurement Item/Range Normal Condition Diagnostic Note Engine Speed Engine speed / 0 to 16383 r/min Changes according to engine speed - OK The Data List items change in accordance with the engine condition. RESULT Result Proceed to NG A OK B B --> See step 7 A: Go to next step
  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (GROUND) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ECM) Disconnect the D48 certification ECU (smart key ECU assembly) connector. Disconnect the A35 ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D48-17 (TACH) - A35-15 (TACH) Always Below 1 ohms D48-17 (TACH) or A35-15 (TACH) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Reconnect the A35 ECM connector. Reconnect the D48 certification ECU (smart key ECU assembly) connector. Check the signal waveform according to the condition(s) in the table below. OK Tester Connection Condition Specified Condition D48-17 (TACH) - Body ground Engine is stopped No pulse generated Engine is running Pulse generated TEXT IN ILLUSTRATION *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) NG --> See step 7 OK --> See step 6
  6. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  7. GO TO SFI SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - ]»(ref-612245-S29231164502014042900000)
  1. CHECK FOR DTC Note any DTCs that are output. Refer to «DTC CHECK / CLEAR [12/2013 - ]»(ref-612242-S17246768852014042900000) . NEXT --> See step 2
  2. GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - ]»(ref-612381-S31527157402014042900000)
  1. CHECK BATTERY Measure the battery voltage. Standard voltage 11 to 14 V HINT: It may be possible to tell whether the vehicle battery is discharged by operating the horn. If the battery voltage is less than 11 V, charge or replace it. NEXT: Go to next step
  2. CHECK DTC (ALL) Using the Techstream, confirm the output of DTCs for all systems. OK No DTCs are output NG --> See step 35 OK: Go to next step
  3. CHECK WAVE ENVIRONMENT If the problem occurs in certain locations or times of day, the possibility of wave interference is high. HINT: Whether or not the problem is due to wave interference can be checked by holding the electrical key transmitter assembly near the door control receiver (RF band). NEXT: Go to next step
  4. CHECK ENGINE SWITCH CONDITION Get into the vehicle while carrying an electrical key transmitter assembly. Move the shift lever to P*. *: for Automatic Transmission With the brake pedal*1 or clutch pedal*2 released, check that pressing the engine switch causes the power source mode to change. *1: for Automatic Transmission *2: for Manual Transmission RESULT Result Proceed to Power source mode changes as follows (normal): off --> on (ACC) --> on (IG) --> off A Power source mode does not change to on (IG) or on (ACC) B Power source mode does not change to on (IG) but does change to on (ACC) C Power source mode does not change to on (ACC) but does change to on (IG) D B --> See step 36 C --> See step 37 D --> See step 38 A: Go to next step
  5. CHECK CRANKING FUNCTION Get into the vehicle while carrying the electrical key transmitter assembly. Move the shift lever to P*. *: for Automatic Transmission Depress the brake pedal*1 or clutch pedal*2. *1: for Automatic Transmission *2: for Manual Transmission Confirm that the entry key indicator in the combination meter assembly illuminates in green, and then press the engine switch and check that the engine cranks. OK Engine cranks RESULT Result Proceed to NG A OK B B --> See step 31 A: Go to next step
  6. READ VALUE USING TECHSTREAM (IMMOBILISER) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. According to the display on the Techstream, read the Data List. SMART KEY Tester Display Measurement Item/Range Normal Condition Diagnostic Note Immobiliser State of immobiliser system determined by certification ECU (smart key ECU assembly) / Set or Unset Set: Engine immobiliser set (engine start prohibited) (engine switch off) Unset: Engine immobiliser unset (engine start permitted) (engine switch on (ACC) or on (IG)) When the immobiliser cannot be unset, this item can be used to determine whether the certification ECU (smart key ECU assembly) is part of the problem. The engine cannot be started when this item displays "Set" OK The Data List item changes to "Unset" when the engine switch is turned on (ACC) or on (IG). RESULT Result Proceed to OK A NG (w/ ID Code Box) B NG (w/o ID Code Box) C B --> See step 10 C --> See step 11 A: Go to next step
  7. CHECK COMBINATION METER ASSEMBLY (ENTRY KEY INDICATOR LIGHT) Get into the vehicle while carrying the electrical key transmitter assembly, move the shift lever to P*1, depressing the brake pedal*1 or clutch pedal*2 and check that the entry key indicator light in the combination meter assembly changes. *1: for Automatic Transmission *2: for Manual Transmission OK The entry key indicator light in green. HINT: If the entry key indicator light in the combination meter assembly illuminates green when the procedure above is performed, the P, N and brake signals*1 or clutch signal*2 can be considered to be normal. *1: for Automatic Transmission *2: for Manual Transmission RESULT Result Proceed to OK A NG (for Automatic Transmission) B NG (for Manual Transmission) C B --> See step 14 C --> See step 20 A: Go to next step
  8. READ VALUE USING TECHSTREAM (STARTER REQUEST SIGNAL) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Starter Request Signal Condition of engine start command signal / OFF or ON OFF: Engine switch released after approximately 1 second elapses ON: Engine switch pressed and held while carrying electrical key transmitter assembly with shift lever in P*1 and brake pedal*1 or clutch pedal*2 depressed When the engine cannot be started due to a start request signal malfunction, OFF is displayed. When the engine switch is pressed, the duration of time that ON is displayed will be extremely short. As such, the engine switch needs to be pressed and held for a certain amount of time. *1: for Automatic Transmission *2: for Manual Transmission OK The display changes in response to the operation of the engine switch. NOTE: Make sure that the entry key indicator in the combination meter assembly illuminates in green before pressing the engine switch. NG --> See step 34 OK: Go to next step
  9. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - BODY GROUND) Disconnect the D48 certification ECU (smart key ECU assembly) connector. Disconnect the A33 ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D48-7 (STSW) - A33-17 (STSW) Always Below 1 ohms D48-7 (STSW) or A33-17 (STSW) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 31
  10. READ VALUE USING TECHSTREAM (S CODE CHECK) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. According to the display on the Techstream, read the Data List. SMART KEY Tester Display Measurement Item/Range Normal Condition Diagnostic Note S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU) / OK or NG OK: Verification result normal NG: Verification result abnormal When NG is displayed: S code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU). The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started). OK OK (S code certification result normal) appears on the screen. NG --> See step 23 OK: Go to next step
  11. CHECK STEERING LOCK Check that the steering unlocks when the engine switch is turned on (ACC). OK The steering unlocks. NG --> See step 25 OK: Go to next step
  12. READ VALUE USING TECHSTREAM (IMMOBILISER) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. According to the display on the Techstream, read the Data List. SMART KEY Tester Display Measurement Item/Range Normal Condition Diagnostic Note Immobiliser State of immobiliser system determined by certification ECU (smart key ECU assembly) / Set or Unset Unset: Engine immobiliser unset (engine switch on [ACC] or on [IG]) Set: Engine immobiliser set (engine switch off) When the immobiliser cannot be unset, this item can be used to determine whether the certification ECU (smart key ECU assembly) is part of the problem. The engine cannot be started when this item displays "Set" OK The Data List item changes to "Unset" when the engine switch is turned on (ACC) or on (IG). RESULT Result Proceed to OK A NG (w/ ID Code Box) B NG (w/o ID Code Box) C B --> See step 29 C --> See step 34 A: Go to next step
  13. READ VALUE USING TECHSTREAM (STARTER REQUEST SIGNAL) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Starter Request Signal Condition of engine start command signal / OFF or ON OFF: Engine switch released after approximately 1 second elapses ON: Engine switch pressed and held while carrying electrical key transmitter assembly with shift lever in P*1 and brake pedal*1 or clutch pedal*2 depressed When the engine cannot be started due to a start request signal malfunction, OFF is displayed. When the engine switch is pressed, the duration of time that ON is displayed will be extremely short. As such, the engine switch needs to be pressed and held for a certain amount of time. *1: for Automatic Transmission *2: for Manual Transmission OK The display changes in response to the operation of the engine switch. NOTE: Make sure that the entry key indicator in the combination meter assembly illuminates in green before pressing the engine switch. NG --> See step 34 OK --> END
  14. READ VALUE USING TECHSTREAM (NEUTRAL SW/ CLUTCH SW, SHIFT SW STATUS P OR N) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Neutral SW / Clutch SW Shift position (P, N) / OFF or ON OFF: Shift lever not in P or N or released ON: Shift lever in P or N depressed Use this item to help determine if the park/neutral position switch is malfunctioning. The engine cannot be started when this item is "OFF". Enter the following menus: Powertrain / Engine / Data List. ENGINE Tester Display Measurement Item/Range Normal Condition Diagnostic Note Shift SW Status (P Range) Condition of park/neutral position switch / OFF or ON OFF: Shift lever not in P ON: Shift lever in P When malfunctioning, the engine will not crank. Shift SW Status (N Range) Condition of park/neutral position switch / OFF or ON OFF: Shift lever not in N ON: Shift lever in N When malfunctioning, the engine will not crank. OK The items in the Data List change according to the shift position. NG --> See step 16 OK: Go to next step
  15. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH1) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Stop Light Switch1 State of brake pedal / OFF or ON OFF: Brake pedal released ON: Brake pedal depressed Use this item to determine whether the stop light switch is malfunctioning. The engine cannot be started when this item is "OFF". When this item is malfunctioning, the engine can be started by pressing and holding the engine switch for a certain period of time. OK The item in the Data List changes when the brake pedal is depressed and released. NG --> See step 18 OK --> See step 34
  16. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY Remove the park/neutral position switch assembly. Refer to «REMOVAL [07/2013 - ]»(ref-612361-S21658826542014042900000) . Inspect the park/neutral position switch assembly. Refer to «INSPECTION [07/2013 - ]»(ref-612361-S22229953602014042900000) . NG --> See step 41 OK: Go to next step
  17. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - PARK/NEUTRAL POSITION SWITCH ASSEMBLY) Disconnect the D48 certification ECU (smart key ECU assembly) connector. Disconnect the L2 park/neutral position switch assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D48-5 (N-SW) - L2-4 Always Below 1 ohms L2-5 - Body ground Always Below 1 ohms D48-5 (N-SW) or L2-4 - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 34
  18. INSPECT STOP LIGHT SWITCH ASSEMBLY Remove the stop light switch assembly. Refer to «REMOVAL [07/2013 - ]»(ref-612383-S36772519132014042900000) . Inspect the stop light switch assembly. Refer to «INSPECTION [07/2013 - ]»(ref-612383-S33059866662014042900000) . NG --> See step 33 OK: Go to next step
  19. CHECK HARNESS AND CONNECTOR (NOISE FILTER - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) See step 4 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 34
  20. READ VALUE USING TECHSTREAM (NEUTRAL SW/ CLUTCH SW) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Neutral SW / Clutch SW State of clutch pedal / OFF or ON OFF: Clutch pedal released ON: Clutch pedal depressed Use this item to help determine if the clutch position switch is malfunctioning. The engine cannot be started when this item is "OFF". OK ON (clutch pedal depressed) and OFF (clutch pedal released) appear on the screen according to the condition of the clutch pedal. NG --> See step 21 OK --> See step 34
  21. INSPECT CLUTCH START SWITCH ASSEMBLY Remove the clutch start switch assembly. Refer to «REMOVAL [07/2013 - ]»(ref-612360-S08150934112014042900000) . Inspect the clutch start switch assembly. Refer to «INSPECTION [07/2013 - ]»(ref-612360-S29838247412014042900000) . NG --> See step 40 OK: Go to next step
  22. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - CLUTCH START SWITCH ASSEMBLY) Disconnect the D48 certification ECU (smart key ECU assembly) connector. Disconnect the A20 clutch start switch assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D48-10 (CLUT) - A20-2 Always Below 1 ohms D48-10 (CLUT) or A20-2 - Body ground Always 10 kohms or higher Reconnect the A20 clutch start switch assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D48-10 (CLUT) - Body ground Clutch pedal released --> Clutch pedal depressed 1 V or less --> 9 V or higher TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Certification ECU (Smart Key ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 34
  23. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Replace the certification ECU (smart key ECU assembly) with a new one. Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000) . NOTE: When the certification ECU (smart key ECU assembly) is replaced, it is also necessary to replace all registered electrical key transmitter sub-assemblies. Perform the registration procedures. Refer to «REGISTRATION [12/2013 - ]»(ref-612251-S41700728192014042900000) . Use the Data List to check if S code certification is functioning properly again. SMART KEY Tester Display Measurement Item/Range Normal Condition Diagnostic Note S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU) / OK or NG OK: Verification result normal NG: Verification result abnormal When NG is displayed: S code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU). The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started). OK OK (S code certification result normal) appears on the screen. NG --> See step 24 OK --> END
  24. REPLACE ID CODE BOX (IMMOBILISER CODE ECU) Replace the ID code box (immobiliser code ECU) with a new one. Refer to «REMOVAL [12/2013 - ]»(ref-612386-S06347090102014042900000) . Perform the registration procedures. Refer to «REGISTRATION [12/2013 - ]»(ref-612251-S41700728192014042900000) . Use the Data List to check if S code certification is functioning properly again. SMART KEY Tester Display Measurement Item/Range Normal Condition Diagnostic Note S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU) / OK or NG OK: Verification result normal NG: Verification result abnormal When NG is displayed: S code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU). The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started). OK OK (S code certification result normal) appears on the screen. NEXT --> END
  25. READ VALUE USING TECHSTREAM (STEERING UNLOCK SWITCH) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Steering Unlock Switch State of steering unlock sensor signal output from steering lock actuator assembly / OFF or ON OFF: Steering locked ON: Steering unlocked When the shift lever is in P and the engine switch is off, if any door is opened or closed, the steering is locked. When the electrical key transmitter assembly is inside the vehicle and the engine switch is turned on (ACC) or on (IG), the steering unlocks. The engine cannot be started when the steering unlock signal is off. OK The item in the Data List indicates "ON" (the steering is unlocked). NG --> See step 26 OK --> See step 32
  26. READ VALUE USING TECHSTREAM (L CODE CHECK) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Data List. According to the display on the Techstream, read the Data List. SMART KEY Tester Display Measurement Item/Range Normal Condition Diagnostic Note L Code Check Verification result between ID code box (immobiliser code ECU) and steering lock ECU (steering lock actuator assembly) / OK or NG OK: Verification result normal NG: Verification result abnormal When NG is displayed: L code has not been registered for the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly). The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started). OK The Data List item changes to "OK" when the electrical key transmitter assembly is inside the vehicle. HINT: Reasons for verification failure: The steering lock ECU, ID code box (immobiliser code ECU)* is malfunctioning. There is a problem with the communication between ECUs. An ECU is replaced, but is not registered. An ECU is replaced with an ECU which has a code already stored in it. *: w/ ID Code Box NG --> See step 28 OK: Go to next step
  27. REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) Replace the steering lock ECU (steering lock actuator assembly) with a new one. Refer to «REMOVAL [12/2013 - ]»(ref-612396-S04249245342014042900000) . Perform the registration procedures. Refer to «REGISTRATION [12/2013 - ]»(ref-612251-S41700728192014042900000) . Turn the engine switch on (IG). Operate the steering wheel and check the steering condition. NEXT --> END
  28. REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) Replace the steering lock ECU (steering lock actuator assembly) with a new one. Refer to «REMOVAL [12/2013 - ]»(ref-612396-S04249245342014042900000) . Perform the registration procedures. Refer to «REGISTRATION [12/2013 - ]»(ref-612251-S41700728192014042900000) . Use the Data List to check if L code certification is functioning properly again. SMART KEY Tester Display Measurement Item/Range Normal Condition Diagnostic Note L Code Check Verification result between ID code box (immobiliser code ECU) and steering lock ECU (steering lock actuator assembly) / OK or NG OK: Verification result normal NG: Verification result abnormal When NG is displayed: L code has not been registered for the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly). The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started). OK OK (L code certification result normal) appears on the screen. RESULT Result Proceed to OK A NG (w/ ID Code Box) B NG (w/o ID Code Box) C B --> See step 39 C --> See step 34 A --> END
  29. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Replace the certification ECU (smart key ECU assembly) with a new one. Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000) . Perform the registration procedures. Refer to «REGISTRATION [12/2013 - ]»(ref-612251-S41700728192014042900000) . Use the Data List to check if S code certification is functioning properly again. SMART KEY Tester Display Measurement Item/Range Normal Condition Diagnostic Note S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU) / OK or NG OK: Verification result normal NG: Verification result abnormal When NG is displayed: S code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU). The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started). OK OK (S code certification result normal) appears on the screen. NG --> See step 30 OK --> END
  30. REPLACE ID CODE BOX (IMMOBILISER CODE ECU) Replace the ID code box (immobiliser code ECU) with a new one. Refer to «REMOVAL [12/2013 - ]»(ref-612386-S06347090102014042900000) . Perform the registration procedures. Refer to «REGISTRATION [12/2013 - ]»(ref-612251-S41700728192014042900000) . Use the Data List to check if S code certification is functioning properly again. SMART KEY Tester Display Measurement Item/Range Normal Condition Diagnostic Note S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU) / OK or NG OK: Verification result normal NG: Verification result abnormal When NG is displayed: S code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU). The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started). OK OK (S code certification result normal) appears on the screen. NEXT --> END
  31. GO TO SFI SYSTEM (PROBLEM SYMPTOMS TABLE). Refer to «PROBLEM SYMPTOMS TABLE [12/2013 - ]»(ref-612245-S42732173092014042900000)
  32. GO TO STEERING LOCK SYSTEM (UNABLE TO UNLOCK STEERING WHEEL). Refer to «Unable to Unlock Steering Wheel (Engine cannot Start)»(ref-612425-S12731901452014042900000)
  33. REPLACE STOP LIGHT SWITCH ASSEMBLY. Refer to «REMOVAL [07/2013 - ]»(ref-612383-S36772519132014042900000)
  34. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  35. GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART [12/2013 - ]»(ref-612242-S07869224502014042900000)
  36. GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (IG AND ACC). Refer to «Power Source Mode does not Change to ON (IG and ACC)»(ref-612441-S32390029562014042900000)
  37. GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (IG). Refer to «Power Source Mode does not Change to ON (IG)»(ref-612441-S39359393302014042900000)
  38. GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (ACC). Refer to «Power Source Mode does not Change to ON (ACC)»(ref-612441-S31370448552014042900000)
  39. REPLACE ID CODE BOX (IMMOBILISER CODE ECU). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S06347090102014042900000)
  40. REPLACE CLUTCH START SWITCH ASSEMBLY. Refer to «REMOVAL [07/2013 - ]»(ref-612360-S08150934112014042900000)
  41. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to «REMOVAL [07/2013 - ]»(ref-612361-S21658826542014042900000)
  1. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM (OPERATION) Check that the wireless door lock function operates normally. Refer to «OPERATION CHECK [12/2013 - ]»(ref-612240-S40045270052014042900000) . OK Wireless door lock functions operate normally. NG --> See step 17 OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (GROUND) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK SMART KEY SYSTEM Remove the battery of the electrical key transmitter sub-assembly. Refer to «REPLACEMENT [12/2013 - ]»(ref-612439-S21547785802014042900000) . With the brake pedal*1 or clutch pedal*2 depressed, hold the electrical key transmitter sub-assembly touch the engine switch while facing the logo side of the electrical key transmitter sub-assembly to the engine switch. *1: for Automatic Transmission *2: for Manual Transmission When touch the logo of the electrical key transmitter sub-assembly to the engine switch, check whether the power source mode changes. OK Power source mode changes. HINT: If the power source mode changes, the cabin verification is malfunctioning. RESULT Result Proceed to NG (Power source mode does not change) A OK (Power source mode changes) B B --> See step 13 A: Go to next step
  5. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH1, NEUTRAL SW/CLUTCH SW) for Automatic Transmission 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. According to the display on the Techstream tester, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Stop Light Switch1 State of brake pedal / OFF or ON OFF: Brake pedal released ON: Brake pedal depressed Use this item to determine whether the stop light switch is malfunctioning. The engine cannot be started when this item is "OFF". When this item is malfunctioning, the engine can be started by pressing and holding the engine switch for a certain period of time. OK ON (brake pedal depressed) and OFF (brake pedal released) appear on the screen according to the stop light switch condition. for Manual Transmission 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Neutral SW / Clutch SW State of clutch pedal / OFF or ON OFF: Clutch pedal released ON: Clutch pedal depressed Use this item to help determine if the clutch switch is malfunctioning. The engine cannot be started when this item is "OFF". OK ON (clutch pedal depressed) and OFF (clutch pedal released) appear on the screen according to the stop light switch condition. RESULT Result Proceed to OK A NG (for Automatic Transmission) B NG (for Manual Transmission) C B --> See step 8 C --> See step 10 A: Go to next step
  6. READ VALUE USING TECHSTREAM (POWER SUPPLY CONDITION) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Power Supply Condition Power Supply Condition / All OFF, IG1 ON or ACC ON, IG2 ON, ST ON, All OFF: Engine switch off (ACC and IG) ACC ON: Engine switch on (ACC)) IG1 ON: Engine switch on (IG) (IG1 relay on) IG2 ON: Engine switch on (IG) (IG2 relay on) ST ON: Sending engine start request signal Since IG1 ON and IG2 ON turn on at approximately the same time, IG1 ON may not be displayed (IG1 ON turns on for a very short time). OK Display changes according to the changes in the power source mode when the engine switch is pushed. NG --> See step 12 OK: Go to next step
  7. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Power Supply Condition Power Supply Condition / All OFF, IG ON or ACC ON, IG2 ON, ST ON, All OFF: Engine switch off (ACC and IG) ACC ON: Engine switch on (ACC)) IG1 ON: Engine switch on (IG) (IG1 relay on) IG2 ON: Engine switch on (IG) (IG2 relay on) ST ON: Sending engine start request signal Since IG1 ON and IG2 ON turn on at approximately the same time, IG1 ON may not be displayed (IG1 ON turns on for a very short time). Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) - - Standard Voltage Tester Connection Switch Condition Specified Condition D41-6 (IG1D) - Body ground Engine switch off 1 V or less Engine switch on (ACC) 1 V or less Engine switch on (IG) 9 V or higher D48-9 (IG2D) - Body ground Engine switch off 1 V or less Engine switch on (ACC) 1 V or less Engine switch on (IG) 9 V or higher D41-4 (ACCD) - Body ground Engine switch off 1 V or less Engine switch on (ACC) 8.5 V or higher Engine switch on (IG) 8.5 V or higher NG --> See step 18 OK --> CHECK RELAY CONTACT SIDE CIRCUIT
  8. INSPECT STOP LIGHT SWITCH ASSEMBLY Remove the stop light switch assembly. Refer to «REMOVAL [07/2013 - ]»(ref-612383-S36772519132014042900000) . Inspect the stop light switch assembly. Refer to «INSPECTION [07/2013 - ]»(ref-612383-S33059866662014042900000) . NG --> See step 20 OK: Go to next step
  9. CHECK HARNESS AND CONNECTOR (NOISE FILTER - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) See step 4 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 18
  10. INSPECT CLUTCH START SWITCH ASSEMBLY Remove the clutch start switch assembly. Refer to «REMOVAL [07/2013 - ]»(ref-612360-S08150934112014042900000) . Inspect the clutch start switch assembly. Refer to «INSPECTION [07/2013 - ]»(ref-612360-S29838247412014042900000) . NG --> See step 23 OK: Go to next step
  11. CHECK HARNESS AND CONNECTOR Disconnect the D48 certification ECU (smart key ECU assembly) connector. Disconnect the A20 clutch start switch assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D48-10 (CLUT) - A20-2 Always Below 1 ohms D48-10 (CLUT) or A20-2 - Body ground Always 10 kohms or higher Reconnect the A20 clutch start switch assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition D48-10 (CLUT) - Body ground Clutch pedal released --> clutch pedal depressed Below 1 V --> 9 V or higher TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Certification ECU (Smart Key ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 18
  12. CHECK FOR DTC Check the DTCs. Refer to «DTC CHECK / CLEAR [12/2013 - ]»(ref-612242-S17246768852014042900000) . RESULT Result Proceed to DTC is not output A DTC B2784 is output B DTC B2785 is output C B --> See step 16 C --> See step 22 A --> REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY
  13. READ VALUE USING TECHSTREAM (START SWITCH 1, 2) 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. According to the display on the Techstream, read the Data List. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Start Switch 1 Condition of engine switch contact 1 / OFF or ON OFF: Engine switch not pushed ON: Engine switch pushed If the engine switch is pressed for a short time, the display may not change. Use this item to determine whether the engine switch input signal is malfunctioning. Start Switch 2 Condition of engine switch contact 2 / OFF or ON OFF: Engine switch not pushed ON : Engine switch pushed Backup for engine switch 1. However, when the engine switch is pressed and held, the control functions only when both engine switch 1 and 2 are normal. Behaves the same way as engine switch 1. OK The ECU data monitor changes in response to the operation of the engine switch. RESULT Result Proceed to NG A OK B B --> See step 21 A: Go to next step
  14. INSPECT ENGINE SWITCH Remove the engine switch. Refer to «REMOVAL [12/2013 - ]»(ref-612370-S05908500972014042900000) . Inspect the engine switch. Refer to «INSPECTION [12/2013 - ]»(ref-612370-S24488933602014042900000) . NG --> See step 19 OK: Go to next step
  15. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ENGINE SWITCH) Disconnect the D41 certification ECU (smart key ECU assembly) connector. Disconnect the D25 engine switch connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D41-28 (SSW1) - D25-5 (SSW1) Always Below 1 ohms D41-30 (SSW2) - D25-1 (SSW2) Always Below 1 ohms D41-28 (SSW1) or D25-5 (SSW1) - Body ground Always 10 kohms or higher D41-30 (SSW2) or D25-1 (SSW2) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 18
  16. GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART [12/2013 - ]»(ref-612251-S22318121652014042900000)
  17. GO TO SMART KEY SYSTEM (ALL DOOR ENTRY LOCK/UNLOCK FUNCTIONS AND WIRELESS FUNCTIONS DO NOT OPERATE). Refer to «All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate»(ref-612433-S06637239782014042900000)
  18. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  19. REPLACE ENGINE SWITCH. Refer to «REMOVAL [12/2013 - ]»(ref-612370-S05908500972014042900000)
  20. REPLACE STOP LIGHT SWITCH ASSEMBLY. Refer to «REMOVAL [07/2013 - ]»(ref-612383-S36772519132014042900000)
  21. GO TO SMART KEY SYSTEM (FOR ENTRY FUNCTION) (ROOM OSCILLATOR DOES NOT RECOGNIZE KEY). Refer to «Room Oscillator does not Recognize Key»(ref-612433-S22203638702014042900000)
  22. GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART [12/2013 - ]»(ref-612424-S22318455712014042900000)
  23. REPLACE CLUTCH START SWITCH ASSEMBLY. Refer to «REMOVAL [07/2013 - ]»(ref-612360-S08150934112014042900000)
  1. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - IG2 RELAY) Disconnect the D48 certification ECU (smart key ECU assembly) connector. Remove the IG2 relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D48-9 (IG2D) - IG2 relay terminal 2 Always Below 1 ohms IG2 relay terminal 1 - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  2. INSPECT IG2 RELAY Inspect the IG2 relay. Refer to «ON-VEHICLE INSPECTION [07/2013 - ]»(ref-612354-S29572846792014042900000) . NG --> REPLACE IG2 RELAY OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the D41 certification ECU (smart key ECU assembly) connector. Disconnect the 3A instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Connection Specified Condition D41-6 (IG1D) - 3A-15 Always Below 1 ohms 3A-12 - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY ((IG1 NO. 1, IG1 NO. 2, IG1 NO. 3 RELAY) Remove the instrument panel junction block assembly. Refer to «REMOVAL [07/2013 - ]»(ref-612382-S37239791822014042900000) . Remove the main body ECU (network gateway ECU) from the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Connection Specified Condition 3E-1 - 3C-35 Battery voltage not applied to terminals 3A- 15 and 3A-12 10 kohms or higher Battery voltage applied to terminals 3A- 15 and 3A-12 Below 1 ohms 3E-1 - 3C-34 Battery voltage not applied to terminals 3A- 15 and 3A-12 10 kohms or higher Battery voltage applied to terminals 3A- 15 and 3A-12 Below 1 ohms 3E-1 - 3A-32 Battery voltage not applied to terminals 3A- 15 and 3A-12 10 kohms or higher Battery voltage applied to terminals 3A- 15 and 3A-12 Below 1 ohms NG --> See step 7 OK: Go to next step
  5. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Reconnect the D41 and D48 certification ECU (smart key ECU assembly) connectors. Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Component with harness connected (Certification ECU (Smart Key ECU Assembly)) - - Standard Voltage Tester Connection Switch Condition Specified Condition D41-6 (IG1D) - Body ground Engine switch on (ACC) --> Engine switch on (IG) Below 1 V --> 9 V or higher D48-9 (IG2D) - Body ground Engine switch on (ACC) --> Engine switch on (IG) Below 1 V --> 9 V or higher NG --> See step 6 OK --> CHECK RELAY CONTACT SIDE CIRCUIT
  6. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)
  7. REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [07/2013 - ]»(ref-612382-S37239791822014042900000)
  1. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - CERTIFICATION ECU) See step 3 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  2. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (ACC RELAY) See step 4 NG --> See step 4 OK: Go to next step
  3. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) See step 5 NG --> See step 5 OK --> CHECK RELAY CONTACT SIDE CIRCUIT
  4. REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [07/2013 - ]»(ref-612382-S37239791822014042900000)
  5. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [12/2013 - ]»(ref-612386-S03752899672014042900000)

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