Engine Control (Diagnostics - Introduction): Diagnosis Lexus HS I

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

*: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
2. CUSTOMER PROBLEM ANALYSIS NEXT: Go to next step
3. CONNECT TECHSTREAM TO DLC3 HINT: If the display indicates a communication fault in the Techstream, inspect the DLC3. NEXT: Go to next step
4. CHECK DTC AND FREEZE FRAME DATA* HINT: Record or print DTCs and freeze frame data, if necessary. NEXT: Go to next step
5. CLEAR DTC AND FREEZE FRAME DATA* NEXT: Go to next step
6. CONDUCT VISUAL INSPECTION NEXT: Go to next step
7. SELECT CHECK MODE DIAGNOSIS* NEXT: Go to next step
8. CONFIRM PROBLEM SYMPTOMS HINT: If the engine does not start, first perform the "Check DTC" procedures and "Conduct Basic Inspection" procedures below. Result Proceed to Malfunction does not occur A Malfunction occurs B B --> GO TO STEP 10 A: Go to next step
9. SIMULATE SYMPTOMS HINT: Refer to Problem Symptoms Table. Refer to «PROBLEM SYMPTOMS TABLE»(ref-398225-S28102712272011051600000) . NEXT: Go to next step
10. CHECK DTC* HINT: Refer to DTC Check / Clear. Result Proceed to Trouble code A No code B B --> GO TO STEP 12 A: Go to next step
11. REFER TO DTC CHART HINT: Refer to Diagnostic Trouble Code Chart. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000) . NEXT: Go to next step
12. CONDUCT BASIC INSPECTION HINT: Refer to Basic Inspection. Refer to «BASIC INSPECTION»(ref-398225-S31599295752011051600000) . Result Proceed to Malfunctioning parts not confirmed A Malfunctioning parts confirmed B B --> GO TO STEP 17 A: Go to next step
13. REFER TO PROBLEM SYMPTOMS TABLE HINT: Refer to Problem Symptoms Table. Refer to «PROBLEM SYMPTOMS TABLE»(ref-398225-S28102712272011051600000) . Result Proceed to Malfunctioning circuit confirmed A Malfunctioning parts confirmed B B --> GO TO STEP 17 A: Go to next step
14. CHECK ECM POWER SOURCE CIRCUIT HINT: Refer to ECM Power Source Circuit. Refer to «ECM Power Source Circuit»(ref-398226-S37492599822011051600000) . NEXT: Go to next step
15. CONDUCT CIRCUIT INSPECTION Result Proceed to Malfunction not confirmed A Malfunction confirmed B B --> GO TO STEP 18 A: Go to next step
16. CHECK FOR INTERMITTENT PROBLEMS NEXT: Go to next step
17. CONDUCT PARTS INSPECTION NEXT: Go to next step
18. IDENTIFY PROBLEM NEXT: Go to next step
19. ADJUST AND/OR REPAIR NEXT: Go to next step
20. CONDUCT CONFIRMATION TEST NEXT --> END

BASIC INSPECTION

When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out in all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential when troubleshooting the engine.

1. CHECK BATTERY VOLTAGE NOTE: Carry out this check with the engine stopped and the power switch off. Result Result Proceed to 11 V or more OK Below 11 V NG NG --> CHARGE OR REPLACE BATTERY OK: Go to next step
2. CHECK WHETHER ENGINE CRANKS NG --> PROCEED TO PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-398225-S28102712272011051600000) OK: Go to next step
3. CHECK WHETHER ENGINE STARTS NG --> GO TO STEP 6 OK: Go to next step
4. CHECK AIR FILTER Visually check that the air filter is not excessively contaminated with dirt or oil. NG --> REPLACE AIR FILTER OK: Go to next step
5. CHECK IDLING SPEED NG --> TROUBLESHOOT IDLING SPEED AND PROCEED TO NEXT STEP OK: Go to next step
6. CHECK FUEL PRESSURE NG --> TROUBLESHOOT FUEL PRESSURE AND PROCEED TO NEXT STEP OK: Go to next step
7. CHECK FOR SPARK NG --> TROUBLESHOOT SPARK AND PROCEED TO NEXT STEP OK --> PROCEED TO PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-398225-S28102712272011051600000)

PROBLEM SYMPTOMS TABLE

HINT

1. Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
2. Inspect the fuses and relays related to this system before inspecting the suspected areas below.

SFI SYSTEM

Scheme 3

HINT

The standard normal voltage between each pair of the ECM (included in the hybrid vehicle control ECU) terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of the terminals, displayed in the "Specified Condition" column. The illustration above can be used as a reference to identify the hybrid vehicle control ECU terminal locations.

HINT

*: The ECM (included in the hybrid vehicle control ECU) terminal voltage is constant regardless of the output voltage from the sensor.

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1. WAVEFORM 1 CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY SIGNAL Terminal Name Between OC1+ and OC1- Tester Range 5 V/DIV., 1 ms./DIV. Condition Idling HINT: The wavelength becomes shorter as the engine speed increases.
2. WAVEFORM 2 AIR FUEL RATIO SENSOR (BANK 1 SENSOR 1) HEATER SIGNAL Terminal Name Between HA1A and E04 Tester Range 5 V/DIV., 10 ms./DIV. Condition Idling with warm engine HINT: The wavelength varies in accordance with the engine operation condition.
3. WAVEFORM 3 HEATED OXYGEN SENSOR SIGNAL Terminal Name Between OX1B and O1B- Tester Range 0.2 V/DIV., 200 ms./DIV. Condition Engine speed maintained at 2500 rpm for 2 minutes after warming up engine HINT: In Data List, item O2S B1S2 shows the values input to the hybrid vehicle control ECU from the heated oxygen sensor.
4. WAVEFORM 4 INJECTOR NO. 1 (TO NO. 4) INJECTION SIGNAL Terminal Name Between #10 (to #40) and E1 Tester Range 20 V/DIV., 20 ms./DIV. Condition Idling HINT: The wavelength becomes shorter as the engine speed increases.
5. WAVEFORM 5 KNOCK CONTROL SENSOR SIGNAL Terminal Name Between KNK1 and EKNK Tester Range 1 V/DIV., 1 ms./DIV. Condition Engine speed maintained at 4000 rpm after warming up engine HINT: The wavelength becomes shorter as the engine speed increases. The waveforms and amplitudes displayed differ slightly depending on the vehicle.
6. WAVEFORM 6 CRANKSHAFT POSITION SENSOR AND CAMSHAFT POSITION SENSOR SIGNAL Terminal Name Between G2+ and G2- Between NE+ and NE- Tester Range 5 V/DIV., 20 ms./DIV. Condition Idling with warm engine HINT: The wavelength becomes shorter as the engine speed increases.
7. WAVEFORM 7 IGNITER IGT SIGNAL (FROM ECM (INCLUDED IN THE HYBRID VEHICLE CONTROL ECU) TO IGNITER) AND IGNITER IGF SIGNAL (FROM IGNITER TO ECM (INCLUDED IN THE HYBRID VEHICLE CONTROL ECU)) Terminal Name Between IGT (1 to 4) and E1 Between IGF and E1 Tester Range 2 V/DIV., 20 ms./DIV. Condition Idling HINT: The wavelength becomes shorter as the engine speed increases.
8. WAVEFORM 8 PURGE VSV SIGNAL Terminal Name Between PRG and E1 Tester Range 10 V/DIV., 20 ms./DIV. Condition Idling, under purge control HINT: If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.
9. WAVEFORM 9 VEHICLE SPEED SIGNAL Terminal Name Between SPDI and E1 Tester Range 5 V/DIV., 20 ms./DIV. Condition Power switch on (IG), Drive wheel rotated slowly HINT: The wavelength becomes shorter as the vehicle speed increases.
10. WAVEFORM 10 THROTTLE ACTUATOR POSITIVE TERMINAL SIGNAL Terminal Name Between M+ and ME01 Tester Range 5 V/DIV., 1 ms./DIV. Condition Idling with warm engine HINT: The duty ratio varies depending on the throttle actuator operation.
11. WAVEFORM 11 THROTTLE ACTUATOR NEGATIVE TERMINAL SIGNAL Terminal Name Between M- and ME01 Tester Range 5 V/DIV., 1 ms./DIV. Condition Idling with warm engine HINT: The duty ratio varies depending on the throttle actuator operation.
12. WAVEFORM 12 CAN COMMUNICATION SIGNAL Terminal Name Between CANH and E1, CAN+ and E1 Tester Range 1 V/DIV., 10 μsec./DIV. Condition Power switch on (IG) HINT: The waveform varies depending on the CAN communication signal.
13. WAVEFORM 13 CAN COMMUNICATION SIGNAL Terminal Name Between CANL and E1, CAN- and E1 Tester Range 1 V/DIV., 10 μsec./DIV. Condition Power switch on (IG) HINT: The waveform varies depending on the CAN communication signal.

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1. DESCRIPTION When troubleshooting OBD II (On-Board Diagnostics) vehicles, an OBD II scan tool (complying with SAE J1987) must be connected to the DLC3 (Data Link Connector 3) of the vehicle. Various data in the ECM (included in the hybrid vehicle control ECU) can be then read. OBD II regulations require that the vehicle on-board computer illuminates the MIL (Malfunction Indicator Lamp) on the instrument panel when the computer detects a malfunction in: The emission control system and components. The powertrain control components (which affect vehicle emissions). The computer itself. In addition, the applicable DTCs prescribed by SAE J2012 are recorded in the hybrid vehicle control ECU memory. If the malfunction does not recur in 3 consecutive trips, the MIL turns off automatically but the DTCs remain recorded in the hybrid vehicle control ECU memory. To check for DTCs, connect the Techstream to the DLC3. The Techstream displays DTCs, freeze frame data, and a variety of the engine data. The DTCs and freeze frame data can be cleared with the Techstream. In order to enhance OBD function on vehicles and develop the Off-Board diagnosis system, Controller Area Network (CAN) communication is used in this system. CAN is a network which uses a pair of data transmission lines spanning multiple computers and sensors. It allows for high speed communications between the systems and simplification of the wire harness connections.
2. NORMAL MODE AND CHECK MODE The diagnosis system operates in normal mode during normal vehicle use. In normal mode, 2 trip detection logic is used to ensure accurate detection of malfunctions. Check mode is also available as an option for technicians. In check mode, 1 trip detection logic is used for simulating malfunction symptoms and increasing the system's ability to detect malfunctions, including intermittent problems (the Techstream only).
3. 2 TRIP DETECTION LOGIC When a malfunction is first detected, the malfunction is temporarily stored in the ECM (included in the hybrid vehicle control ECU) memory (1st trip). If the same malfunction is detected during the subsequent drive cycle, the MIL is illuminated (2nd trip).
4. DLC3 (Data Link Connector 3) Check the DLC3. Refer to «GENERAL INFORMATION»(ref-398089-S21707799022011051600000) .
5. FREEZE FRAME DATA The ECM (included in the hybrid vehicle control ECU) records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
6. BATTERY VOLTAGE Standard voltage 11 to 14 V If voltage is below 11 V, replace or recharge the battery.
7. MIL (Malfunction Indicator Lamp) The MIL illuminates when the power switch is first turned on (IG) (the engine is not running). The MIL should turn off when the engine is started. If the MIL remains illuminated, the diagnosis system has detected a malfunction or abnormality in the system. HINT: If the MIL does not illuminate when the power switch is first turned on (IG), check the MIL circuit. Refer to «MIL Circuit»(ref-398226-S22188282202011051600000) .
8. ALL READINESS HINT: With "ALL READINESS", you can check whether or not the DTC judgment has been completed by using the Techstream. You should check "ALL READINESS" after simulating malfunction symptoms or for validation after finishing repairs. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) . Turn the power switch off and wait for 30 seconds. Turn the power switch on (IG) and turn the Techstream on. Perform the DTC judgment driving pattern to run the DTC judgment. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTCs to be confirmed. Check the DTC judgment result. TECHSTREAM Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform the driving pattern after confirming the DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit

DTC CHECK / CLEAR

Note. When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and freeze frame data recorded in normal mode are cleared. Before changing modes, always check and make a note of DTCs and freeze frame data.

HINT

1. DTCs which are stored in the ECM (included in the hybrid vehicle control ECU) can be displayed on the Techstream. The Techstream can display current and pending DTCs.
2. The same DTCs are not set if the ECM (included in the hybrid vehicle control ECU) does not detect the same malfunction again during a second consecutive driving cycle. However, such malfunctions, detected on only one occasion, are stored as pending DTCs.

1. CHECK DTC (Using the Techstream) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Check for DTC(s) and freeze frame data, and then write them down. Check the details of the DTC(s). Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000) .
2. CLEAR DTC Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Clear the DTCs.

Scheme 18

1. DESCRIPTION The hybrid vehicle control ECU records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was moving or stationary, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. HINT: If it is impossible to replicate the problem even though a DTC is detected, confirm the freeze frame data. The hybrid vehicle control ECU records engine conditions in the form of freeze frame data every 0.5 seconds. Using the Techstream, five separate sets of freeze frame data, including the data values at the time when the DTC was set, can be checked. 3 data sets before the DTC was set. 1 data set when the DTC was set. 1 data set after the DTC was set. These data sets can be used to simulate the condition of the vehicle around the time of the occurrence to the malfunction. The data may assist in identifying the cause of the malfunction, and judging whether it was temporary or not.
2. LIST OF FREEZE FRAME DATA Techstream Display Measurement Item Diagnostic Note Vehicle Speed Vehicle speed Speed indicated on speedometer Engine Speed Engine speed - Calculate Load Calculated load by hybrid vehicle control ECU - Vehicle Load Vehicle load Load percentage in terms of maximum intake air flow amount MAF Air flow rate from mass air flow meter If value approximately 0.0 gm/sec: Mass air flow meter sub-assembly power source circuit open VG circuit open or shorted If value 271.0 gm/sec or more: E2G circuit open Atmosphere Pressure Atmosphere pressure - MAP Intake manifold pressure - Coolant Temp Engine coolant temperature If value -40°C (-40°F): sensor circuit open If value 140°C (284°F) or more: sensor circuit shorted Intake Air Intake air temperature If value -40°C (-40°F): sensor circuit open If value 140°C (284°F) or more: sensor circuit shorted Engine Run Time Engine run time - Initial Engine Coolant Temp Initial engine coolant temperature Service data Initial Intake Air Temp Initial intake air temperature Service data Battery Voltage Battery voltage - Throttle Sensor Volt % Throttle sensor positioning Recognition value for throttle opening angle in hybrid vehicle control ECU Throttl Sensor #2 Volt % Absolute throttle sensor positioning #2 Recognition value for throttle opening angle in hybrid vehicle control ECU Throttle Sensor Position Throttle sensor positioning Recognition value for throttle opening angle in hybrid vehicle control ECU Throttle Motor DUTY Throttle actuator - Injector (Port) Injection direction for cylinder 1 - Injection Volum (Cylinder1) Injection volume (Cylinder 1) Quantity of fuel injection volume for 10 times Fuel Pump/Speed Status Fuel pump/status Active Test support data Vacuum Pump Key-off EVAP system leak detection pump status Active Test support data EVAP (Purge) VSV Purge VSV control duty ratio Order signal from hybrid vehicle control ECU Evap Purge Flow Ratio of evaporative purge flow to intake air volume Service data Purge Density Learn Value Learning value of purge density Service data EVAP System Vent Valve Key-off EVAP system vent valve status - EVAP Purge VSV Purge VSV status for EVAP control - Target Air-Fuel Ratio Ratio compared to stoichiometric level - AF Lambda B1 S1 Short-term fuel trim associated with bank 1 sensor 1 - AFS Voltage B1 S1 Air fuel ratio sensor output voltage for bank 1 sensor 1 Performing Control the Injection Volume or Control the Injection Volume for A/F Sensor function of Active Test enables technician to check output voltage of sensors AFS Current B1 S1 Air fuel ratio sensor output current for bank 1 sensor 1 Value becomes higher when fuel-cut executed under high engine speed O2S B1 S2 Heated oxygen sensor output voltage for bank 1 sensor 2 Performing Control the Injection Volume or Control the Injection Volume for A/F Sensor function of Active Test enables technician to check output voltage of sensors O2S Impedance B1S2 Heated oxygen sensor impedance (bank 1 sensor 2) - Short FT #1 Short-term fuel trim of bank 1 Short-term fuel compensation used to maintain air fuel ratio at stoichiometric air fuel ratio Long FT #1 Long-term fuel trim of bank 1 Overall fuel compensation carried out in long-term to compensate continual deviation of short-term fuel trim from central value Total FT #1 Total fuel trim - Fuel System Status #1 Fuel system status (bank 1) OL (Open Loop): Has not yet satisfied conditions to go closed loop CL (Closed Loop): Using air fuel ratio sensor as feedback for fuel control OLDrive: Open loop due to driving conditions (fuel enrichment) OLFault: Open loop due to detected system fault CLFault: Closed loop but air fuel ratio sensor, which is used for fuel control, malfunctioning Fuel System Status #2 Fuel system status (bank 2) (Unused) - IGN Advance Ignition timing advance for cylinder 1 - Knock Feedback Value Feedback value of knocking Service data Knock Correct Learn Value Correction learning value of knocking Service data VVT Control Status #1 VVT control status (bank 1) - Catalyst Temp B1 S1 Catalyst temperature (associated sensor 1) - Catalyst Temp B1 S2 Catalyst temperature (associated sensor 2) - Closed Throttle Position SW Closed throttle position switch - Fuel Cut Condition Fuel cut condition ON or OFF - Engine Oil Pressure SW Engine oil pressure switch - Time after DTC Cleared Time since DTCs cleared - Distance from DTC Cleared Distance traveled since DTCs cleared - Warmup Cycle Cleard DTC Warm-up cycles since DTCs cleared Number of warm-up cycles since DTCs cleared TC and TE1 TC and CG (TE1) terminals of DLC3 - Ignition Trig. Count Ignition counter for calculated misfire count - Cylinder #1 Misfire Count Misfire count for cylinder 1 - Cylinder #2 Misfire Count Misfire count for cylinder 2 - Cylinder #3 Misfire Count Misfire count for cylinder 3 - Cylinder #4 Misfire Count Misfire count for cylinder 4 - All Cylinders Misfire Count All cylinders misfire count - Misfire RPM Average engine speed when misfire occurred - Misfire Load Average engine load when misfire occurred - Electric Fan Motor Electric cooling fan motor - Idle Fuel Cut Fuel cut idle - FC TAU FC TAU Fuel cut being performed under very light load to prevent engine combustion from becoming incomplete Requested Engine Torque Requested engine torque Flag information for hybrid vehicle HV Target Engine Speed HV target engine speed Flag information for hybrid vehicle Actual Engine Torque Actual engine torque Flag information for hybrid vehicle Estimated Engine Torque Estimated engine torque - Engine Run Time Engine run time Flag information for hybrid vehicle Request Engine Run Time Request engine run time Flag information for hybrid vehicle Judge Time Engine Ignition Judgment time for engine ignition Flag information for hybrid vehicle Judge Time Engine Output Judgment time for time until engine output Flag information for hybrid vehicle Fuel Level Fuel level - ISC Learning Idle speed control learning Flag information for hybrid vehicle F/C for Engine Stop Req Fuel cut for engine stop request Flag information for hybrid vehicle Engine Independent Engine independent operation Flag information for hybrid vehicle Racing Operation Racing operation Flag information for hybrid vehicle Request Warm-up Request engine warm up Flag information for hybrid vehicle Engine Independent Control Engine independent control operation Flag information for hybrid vehicle ISC Learning Value Idle speed control learning value Flag information for hybrid vehicle

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 only. Do not depend solely on these values when determining whether or not a part is faulty. Warm up the engine. Turn the power switch off. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List. According to the display on the Techstream, read the Data List. Tester Display Measurement Item/Range Normal Condition Diagnostic Note Vehicle Speed Vehicle speed: Min.: 0 mph (0 km/h), Max.: 159 mph (255 km/h) Actual vehicle speed Speed indicated on speedometer Engine Speed Engine speed: Min.: 0 rpm, Max.: 16383 rpm 850 to 950 rpm: Idling - Calculate Load Calculated load by hybrid vehicle control ECU: Min.: 0%, Max.: 100% 11 to 30%: Idling 12.1 to 30%: Running without load (2500 rpm) - Vehicle Load Vehicle load: Min.: 0%, Max.: 25700% Actual vehicle load Load percentage in terms of maximum intake air flow amount MAF Air flow rate from mass air flow meter sub-assembly: Min.: 0 gm/sec, Max.: 655.35 gm/sec 2.0 to 4.3 gm/sec: Idling 2.4 to 8.0 gm/sec: Running without load (2500 rpm) If value approximately 0.0 gm/sec: Mass air flow meter sub-assembly power source circuit open VG circuit open or shorted If value 271.0 gm/sec or more: E2G circuit open Atmosphere Pressure Atmospheric pressure: Min.: 0 kPa (0 mmHg) , Max.: 255 kPa (1913 mmHg) Equivalent to atmospheric pressure - MAP Intake manifold pressure: Min.: 0 kPa (0 mmHg), Max.: 255 kPa (1913 mmHg) 80 to 110 kPa-a (600 to 826 mmHg-a): Power switch on (IG) 20 to 40 kPa-a (150 to 300 mmHg-a): Idling - Coolant Temp Engine coolant temperature: Min.: -40°C (-40°F), Max.: 140°C (284°F) 80 to 100°C (176 to 212°F): After warming up If value -40°C (-40°F): sensor circuit open If value 140°C (284°F) or more: sensor circuit shorted Intake Air Intake air temperature: Min.: -40°C (-40°F), Max.: 140°C (284°F) Equivalent to ambient air temperature If value -40°C (-40°F): sensor circuit open If value 140°C (284°F) or more: sensor circuit shorted Engine Run Time Engine run time: Min.: 0 s (second), Max.: 65535 s (seconds) Time since engine started - Initial Engine Coolant Temp Initial engine coolant temperature: Min.: -40°C (-40°F), Max.: 120°C (248°F) Coolant temperature when engine started Service data Initial Intake Air Temp Initial intake air temperature: Min.: -40°C (-40°F), Max.: 120°C (248°F) Intake air temperature when engine started Service data Battery Voltage Battery voltage: Min.: 0 V, Max.: 65.5 V 11 to 16 V: Idling - Throttle Sensor Volt % Throttle valve opening percentage according to throttle position sensor: Min.: 0%, Max.: 100% 10 to 22%: Accelerator pedal released Value calculated based on the voltage at terminal VTA Throttl Sensor #2 Volt % Throttle valve opening percentage according to throttle position sensor No. 2: Min.: 0%, Max.: 100% 42 to 62%: Accelerator pedal released Value calculated based on the voltage at terminal VTA2 System Guard System guard: ON or OFF - Electronic throttle control system service data Throttle Idle Position Whether or not throttle position sensor detecting idling: ON or OFF ON: Accelerator pedal released OFF: Accelerator pedal fully depressed - Throttle Require Position Required throttle position: Min.: 0 V, Max.: 4.98 V 0.5 to 1.1 V: Idling - Throttle Sensor Position*1 Throttle position sensor: Min.: 0%, Max.: 100% 0%: Accelerator pedal released Recognition value for throttle opening angle on hybrid vehicle control ECU Throttle Position No. 1 Throttle position sensor No. 1 output voltage: Min.: 0 V, Max.: 4.98 V - Electronic throttle control system service data Throttle Position No. 2 Throttle position sensor No. 2 output voltage: Min.: 0 V, Max.: 4.98 V - Electronic throttle control system service data Throttle Position No. 1 Throttle position sensor No. 1: Min.: 0 V, Max.: 4.98 V 0.5 to 1.1 V: Accelerator pedal released 0.6 to 1.4 V: Fail-safe operating - Throttle Position No. 2 Throttle position sensor No. 2: Min.: 0 V, Max.: 4.98 V 2.1 to 3.1 V: Accelerator pedal released 2.1 to 3.1 V: Fail-safe operating - Throttle Position Command Throttle position command value: Min.: 0 V, Max.: 4.9 V 0.5 to 4.8 V - Throttle Sens Open Pos #1 Throttle sensor opener position No. 1: Min.: 0 V, Max.: 4.9 V 0.6 to 1.4 V Electronic throttle control system service data Throttle Sens Open Pos #2 Throttle sensor opener position No. 2: Min.: 0 V, Max.: 4.9 V 1.7 to 2.5 V Electronic throttle control system service data Throttle Sens Open #1 (AD) Throttle position sensor No. 1 output voltage (AD): Min.: 0 V, Max.: 4.9 V 0.5 to 4.8 V - Throttle Motor Whether throttle actuator control permitted: ON or OFF ON: Power switch on (IG) and system normal OFF: Electronic throttle control system has failed - Throttle Motor Current Throttle actuator current: Min.: 0 A, Max.: 19.9 A 0 to 3.0 A: Idling Electronic throttle control system service data Throttle Motor DUTY Throttle actuator duty ratio: Min.: 0%, Max.: 100% 10 to 22%: Idling after engine warmed up Electronic throttle control system service data Throttle Motor Current Throttle actuator current: Min.: 0 A, Max.: 19.92 A 0 to 3.0 A: Idling - Throttle Motor Open Duty Throttle actuator open duty ratio: Min.: 0%, Max.: 100% 0 to 40%: Idling When accelerator pedal depressed, duty ratio increased Throttle Motor Close Duty Throttle actuator close duty ratio: Min.: 0%, Max.: 100% 0 to 40%: Idling When accelerator pedal released quickly, duty ratio increased Throttle Motor Duty (Open) Throttle actuator duty ratio (open): Min.: 0%, Max.: 100% 0 to 40%: Idling Electronic throttle control system service data Throttle Motor Duty (Close) Throttle actuator duty ratio (close): Min.: 0%, Max.: 100% 0 to 40%: Idling Electronic throttle control system service data Throttle Fully Close Learn Throttle valve fully closed (learned value): Min.: 0 V, Max.: 4.98 V 0.4 to 1.0 V: Accelerator pedal released - ETCS Actuator Power ETCS power supply: ON or OFF ON: Power switch on (IG) and system normal OFF: Electronic throttle control system has failed - +BM Voltage +BM voltage: Min.: 0, Max.: 19.9 V 11 to 16 V: Power switch on (IG) and system normal Electronic throttle control system service data Actuator Power Supply Actuator power supply ON or OFF ON: Idling - Clutch Current Clutch current: Min.: 0, Max.: 2.49 A - - Fail Safe Drive Whether or not fail safe function is excuted: ON or OFF ON: Power switch on (IG) and system normal OFF: Electronic throttle control system has failed - Fail Safe Drive (Main CPU) Whether or not fail safe function is excuted: ON or OFF ON: Power switch on (IG) and system normal OFF: Electronic throttle control system has failed - Injector (Port) Injection duration for cylinder 1: Min.: 0 ms, Max.: 32.64 ms 1.5 to 2.7 ms: Idling - Injection Volum (Cylinder1) Injection volume (Cylinder 1): Min.: 0 ml, Max.: 2.047 ml 0 to 0.5 ml: Idling Quantity of fuel injection volume for 10 times Fuel Pump/Speed Status Fuel pump status: ON or OFF - Active Test support data Vacuum Pump Key-off EVAP system leak detection pump status: ON or OFF - Active Test support data EVAP (Purge) VSV EVAP (Purge) VSV control duty: Min.: 0%, Max.: 100% 0 to 50%: Idling, under purge control Order signal from hybrid vehicle control ECU Evap Purge Flow Ratio of evaporative purge flow to intake air volume: Min.: 0%, Max.: 102.3% 0 to 100%: Idling Service data Purge Density Learn Value Learning value of purge density: Min.: -50, Max.: 349.99 -30 to 1: Idling Service data Vapor Pressure Pump Vapor pressure: Min.: 33.853 kPa (253.898 mmHg), Max.: 125.596 kPa (941.97 mmHg) Approximately 100 kPa (750 mmHg) (absolute): Power switch on (IG) EVAP system pressure monitored by canister pressure sensor Vapor Pressure (Calculated) Vapor pressure (calculated): Min.: -5.632 kPa (-42.24 mmHg), Max.: 715.264 kPa (5364.48 mmHg) Approximately 100 kPa (750 mmHg) (absolute): Power switch on (IG) EVAP system pressure monitored by canister pressure sensor EVAP System Vent Valve Key-off EVAP system vent valve status: ON or OFF - Active Test support data EVAP Purge VSV Purge VSV status for EVAP control: ON or OFF - Active Test support data Target Air-Fuel Ratio Ratio compared to stoichiometric level: Min.: 0, Max.: 1.998 0.8 to 1.2: Idling - AF Lambda B1 S1 Short-term fuel trim associated with bank 1 sensor 1: Min.: 0, Max.: 1.99 Value less than 1 (0.000 to 0.999) = Rich Stoichiometric air fuel ratio = 1 Value greater than 1 (1.001 to 1.99) = Lean - AFS Voltage B1 S1 Air fuel ratio sensor output voltage for bank 1 sensor 1: Min.: 0 V, Max.: 7.99 V 2.6 to 3.8 V: Idling, engine warmed up Performing Control the Injection Volume or Control the Injection Volume for A/F Sensor function of Active Test enables technician to check output voltage of sensors AFS Current B1 S1 Air fuel ratio sensor output current for bank 1 sensor 1: Min.: -128 mA, Max.: 127.99 mA -0.5 to 0.5 mA: Idling, engine warmed up Value becomes higher when fuel-cut executed under high engine speed O2S B1 S2 Heated oxygen sensor output voltage for bank 1 sensor 2: Min.: 0 V, Max.: 1.275 V 0.1 to 0.9 V: Driving at 47 mph (75 km/h) Performing Control the Injection Volume or Control the Injection Volume for A/F Sensor function of Active Test enables technician to check output voltage of sensors O2S Impedance B1S2 Heated oxygen sensor impedance (bank 1 sensor 2): Min.: 0 ohm, Max.: 21247.67 ohm 5 to 15000 ohm: After driving for 10 minutes or more in urban area - Short FT #1 Short-term fuel trim of bank 1: Min.: -100%, Max.: 99.2% -20 to 20% Short-term fuel compensation used to maintain air fuel ratio at stoichiometric air fuel ratio Long FT #1 Long-term fuel trim of bank 1: Min.: -100%, Max.: 99.2% -20 to 20% Overall fuel compensation carried out long-term to compensate continual deviation of short-term fuel trim from central value Total FT #1 Total fuel trim of bank 1 Average value for fuel trim system of bank 1: Min.: -0.5, Max.: 0.496 -0.2 to 0.2: Idling - Fuel System Status #1 Fuel system status (bank 1): OL or CL or OLDrive or OLFault or CLFault CL: Idling after warming up OL (Open Loop): Has not yet satisfied conditions to go closed loop CL (Closed Loop): Using air fuel ratio sensor as feedback for fuel control OLDrive: Open loop due to driving conditions (fuel enrichment) OLFault: Open loop due to detected system fault CLFault: Closed loop but air fuel ratio sensor, which used for fuel control malfunctioning Fuel System Status #2 Fuel system status (bank 2): OL or CL or OLDrive or OLFault or CLFault Unused - IGN Advance Ignition timing advance for No. 1 cylinder: Min.: -64 deg., Max.: 63.5 deg. BTDC 5 to 25 deg.: Idling - Knock Feedback Value Feedback value of knocking: Min.: -64°CA, Max.: 1983.9°CA -21 to 0°CA: Driving at 47 mph (75 km/h) Service data Knock Correct Learn Value Correction learning value of knocking: Min.: -64°CA, Max.: 1983.9°CA 0 to 20°CA: Driving at 44 mph (70 km/h) Service data VVT Control Status #1 VVT control status (bank 1): ON or OFF - Active Test support data VVT Aim Angle #1*2 VVT aim angle (bank 1): Min.: 0%, Max.: 80% 0%: Idling VVT duty signal value during intrusive operation VVT Change Angle #1*2 VVT change angle (bank 1): Min.: 0 DegFR, Max.: 60 DegFR 0 to 5 DegFR: Idling Displacement angle during intrusive operation VVT OCV Duty #1*2 VVT camshaft timing oil control valve assembly operation duty: Min.: 0%, Max.: 100% 0 to 100% Requested duty value for intrusive operation Catalyst Temp B1 S1 Catalyst temperature (associated with sensor 1): Min.: -40°C (-40°F), Max.: 6513.5°C (11756.3°F) Close to catalyst inlet temperature - Catalyst Temp B1 S2 Catalyst temperature (associated with sensor 2): Min.: -40°C (-40°F), Max.: 6513.5°C (11756.3°F) Close to catalyst outlet temperature - Closed Throttle Position SW Closed throttle position switch: ON or OFF ON: Throttle fully closed OFF: Throttle open - Fuel Cut Condition Fuel cut determination flag: ON or OFF - - Engine Oil Pressure SW Engine oil pressure switch: ON or OFF - - Check Mode Check mode: ON or OFF ON: Check mode ON Refer to «CHECK MODE PROCEDURE»(ref-398225-S06565800662011051600000) Misfire Test Result Check mode result for misfire monitor: Compl or Incmpl - - OXS1 Test Result Check mode result for heated oxygen sensor (bank 1): Compl or Incmpl - - A/F Test Results #1 Check mode result for air fuel ratio sensor (bank 1) Compl or Incmpl - - Complete Parts Monitor Comprehensive component monitor: Not Avl or Avail - - Fuel System Monitor Fuel system monitor: Not Avl or Avail - - Misfire Monitor Misfire monitor: Not Avl or Avail - - EGR/VVT Monitor EGR monitor: Not Avl or Avail - - EGR/VVT Monitor EGR monitor: Compl or Incmpl - - O2S(A/FS) Heater Monitor O2S (A/FS) heater monitor: Not Avl or Avail - - O2S(A/FS) Heater Monitor O2S (A/FS) heater monitor: Compl or Incmpl - - O2S(A/FS) Monitor O2S (A/FS) monitor: Not Avl or Avail - - O2S(A/FS) Monitor O2S (A/FS) monitor: Compl or Incmpl - - A/C Monitor A/C monitor: Not Avl or Avail - - A/C Monitor A/C monitor: Compl or Incmpl - - 2nd Air Monitor 2nd air monitor: Not Avl or Avail - - 2nd Air Monitor 2nd air monitor: Compl or Incmpl - - EVAP Monitor EVAP monitor: Not Avl or Avail - - EVAP Monitor EVAP monitor: Compl or Incmpl - - Heated Catalyst Monitor Heated catalyst monitor: Not Avl or Avail - - Heated Catalyst Monitor Heated catalyst monitor: Compl or Incmpl - - Catalyst Monitor Catalyst monitor: Not Avl or Avail - - Catalyst Monitor Catalyst monitor: Compl or Incmpl - - Component Monitor ENA Comprehensive component monitor: Unable or Enable - - Component Monitor CMPL Comprehensive component monitor: Compl or Incmpl - - Fuel System Monitor ENA Fuel system monitor: Unable or Enable - - Fuel System Monitor CMPL Fuel system monitor: Compl or Incmpl - - Misfire Monitor ENA Misfire monitor: Unable or Enable - - Misfire Monitor CMPL Misfire monitor: Compl or Incmpl - - EGR/VVT Monitor ENA EGR monitor: Unable or Enable - - EGR/VVT Monitor CMPL EGR monitor: Compl or Incmpl - - Heater Monitor ENA O2S (A/FS) heater monitor: Unable or Enable - - Heater Monitor CMPL O2S (A/FS) heater monitor: Compl or Incmpl - - O2S(A/FS) Monitor ENA O2S (A/FS) monitor: Unable or Enable - - O2S(A/FS) Monitor CMPL O2S (A/FS) monitor: Compl or Incmpl - - A/C Monitor ENA A/C monitor: Unable or Enable - - A/C Monitor CMPL A/C monitor: Compl or Incmpl - - 2nd Air Monitor ENA 2nd air monitor: Unable or Enable - - 2nd Air Monitor CMPL 2nd air monitor: Compl or Incmpl - - EVAP Monitor ENA EVAP monitor: Unable or Enable - - EVAP Monitor CMPL EVAP monitor: Compl or Incmpl - - Heated Cat Monitor ENA Heated catalyst monitor: Unable or Enable - - Heated Cat Monitor CMPL Heated catalyst monitor: Compl or Incmpl - - Catalyst Monitor ENA Catalyst monitor: Unable or Enable - - Catalyst Monitor CMPL Catalyst monitor: Compl or Incmpl - - # Codes (Include History) Number of emission related DTCs: Min.: 0 Max.: 255 0: No emission related DTC detected - MIL MIL status: ON or OFF ON: MIL ON - MIL ON Run Distance Distance traveled since MIL turned on: Min.: 0 Km (0 mile), Max.: 65535 Km (40724 mile) Distance since DTC detected - Running Time from MIL ON Running time since MIL turned on: Min.: 0 min, Max.: 65535 min Equivalent to running time since MIL turned on - Time after DTC Cleared Time since DTCs cleared: Min.: 0 min, Max.: 65535 min Equivalent to time since DTCs cleared - Distance from DTC Cleared Distance traveled since DTCs cleared: Min.: 0 km (0 mile), Max.: 65535 km (40724 mile) Equivalent to distance driven since DTCs cleared - Warmup Cycle Cleard DTC Warm-up cycles since DTCs cleared: Min.: 0, Max.: 255 - Number of warm-up cycles since DTCs cleared OBD Requirements OBD requirement OBD2 - Number of Emission DTC Emission related DTCs Min.: 0 Max.: 127 - Number of emission related DTCs TC and TE1 TC and CG (TE1) terminals of DLC3: ON or OFF - Active Test support data Ignition Trig. Count Ignition counter for calculated misfire rate: Min.: 0, Max.: 800 0 to 800 - Cylinder #1 Misfire Count Misfire count of cylinder 1: Min.: 0, Max.: 255 0 - Cylinder #2 Misfire Count Misfire count of cylinder 2: Min.: 0, Max.: 255 0 - Cylinder #3 Misfire Count Misfire count of cylinder 3: Min.: 0, Max.: 255 0 - Cylinder #4 Misfire Count Misfire count of cylinder 4: Min.: 0, Max.: 255 0 - All Cylinders Misfire Count All cylinders misfire count: Min.: 0, Max.: 255 0 - Misfire RPM Average engine speed when misfire occurred: Min.: 0 rpm, Max.: 6375 rpm 0 rpm: Misfire 0 - Misfire Load Average engine load when misfire occurred: Min.: 0 g/rev, Max.: 3.98 g/rev 0 g/rev: Misfire 0 - Electric Fan Motor Electric cooling fan motor: ON or OFF ON: Electric cooling fan motor operating Active Test support data Idle Fuel Cut Fuel cut idle: ON or OFF ON: Fuel cut operating - FC TAU Fuel cut TAU (Fuel cut with very light load): ON or OFF ON: Fuel cut operating Fuel cut being performed during very light load to prevent incomplete engine combustion Model Code Model code - Identifies model code: ANF1## Engine Type Engine type - Identifies engine type: 2AZFXE Cylinder Number Cylinder number: Min.: 0, Max.: 255 - Identifies number of cylinders: 4 Destination Destination - Identifies destination: A (America) Model Year Model year: Min.: 1900, Max.: 2155 - Identifies model year: 2010 System Identification System identification - Identifies engine system: HV (Hybrid) Requested Engine Torque Requested engine torque: Min.: 0 kW, Max.: 16383.75 kW 0 to 110 kW Flag information for hybrid vehicle HV Target Engine Speed Hybrid target engine speed: Min.: 0 rpm, Max.: 6375 rpm 0 to 6000 rpm Flag information for hybrid vehicle Actual Engine Torque Actual engine torque: Min.: -128 Nm, Max.: 127 Nm Actual engine torque Flag information for hybrid vehicle Estimated Engine Torque Estimated engine torque: Min.: 0 Nm, Max.: 510 Nm 0 to 187 Nm Flag information for hybrid vehicle Engine Run Time Engine run time: Min.: 0 s (seconds), Max.: 255 s (seconds) 0 to 255 s Flag information for hybrid vehicle Request Engine Run Time Request engine run time: Min.: 0 s (seconds), Max.: 25.5 s (seconds) 0 to 25.5 s Flag information for hybrid vehicle Judge Time Engine Ignition Judgment time for completion of ignition: Min.: 0 s (seconds), Max.: 25.5 s (seconds) 0 to 25.5 s Flag information for hybrid vehicle Judge Time Engine Output Judgment time for time until engine output: Min.: 0 s (seconds), Max.: 25.5 s (seconds) 0 to 25.5 s Flag information for hybrid vehicle Fuel Level Fuel level: Empty or Not Emp - - ISC Learning Idle speed control learning: Compl or Incmpl - Flag information for hybrid vehicle F/C for Engine Stop Req Fuel cut for engine stop request: ON or OFF - Flag information for hybrid vehicle Engine Independent Engine independent operation: Not Opr or Operate - Flag information for hybrid vehicle Racing Operation Racing operation: Not Opr or Operate - Flag information for hybrid vehicle Request Warm-up Request engine warm up: Not Req or Request - Flag information for hybrid vehicle Engine Independent Control Engine independent control operation: Not Opr or Operate - Flag information for hybrid vehicle ISC Learning Value Idle speed control learning value: Min.: 0 L/s, Max.: 19.92 L/s - Flag information for hybrid vehicle HINT: Normal condition: If no idling conditions are specified, neutral (N) or park (P) should be selected, and the A/C switch and all accessory switches should be off. *1: Excluding throttle valve opening percentage due to Idle Speed Control (ISC). *2: Values are only displayed when performing the Active Tests: Control the VVT Linear (Bank1). For other Active Tests, the value will be 0.
2. ACTIVE TEST HINT: Using the Techstream to perform the 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. Warm up the engine. Turn the power switch off. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test. According to the display on the Techstream, perform the Active Test. Tester Display Test Part Control Range Diagnostic Note Control the Injection Volume Change injection volume -12.5 to 24.8% All injectors tested at the same time Perform test at less than 3000 rpm Injection volume can be changed in 0.1 or 0.2% graduations within control range Control the Injection Volume for A/F Sensor Change injection volume Lower by 12.5% or increase by 25% Perform test at less than 3000 rpm Control the Injection Volume for A/F Sensor enables checking and graphing of air fuel ratio sensor and heated oxygen sensor voltage outputs When conducting the test, enter the following menus: Active Test / Control the Injection Volume for A/F Sensor / Data List / AFS Voltage B1S1 and O2S B1S2 Activate the VSV for Evap Control Activate purge VSV control ON/OFF - Control the Fuel Pump / Speed Activate fuel pump (C/OPN Relay) ON/OFF Test possible when following conditions met: Power switch on (IG) Engine is stopped Connect the TC and TE1 Turn on and off TC and CG (TE1) connection ON/OFF ON: TC and TE1 connected OFF: TC and TE1 disconnected Control the Idle Fuel Cut Prohibit Prohibit idling fuel cut control ON/OFF - Control the Electric Cooling Fan Control electric cooling fan motor ON/OFF - Control the ETCS Open/Close Slow Speed Throttle actuator Closed/Open Test possible when following conditions met: Power switch on (IG) Engine is stopped Accelerator pedal fully depressed (Accelerator pedal position: 58 degrees or more) Control the ETCS Open/Close Fast Speed Throttle actuator Closed/Open Control the VVT Linear (Bank1) Control VVT (bank 1) Between -128 and 127% This value added to present camshaft timing oil control valve control duty 100%: Maximum advance -100%: Maximum retard Engine stalls or idle roughly when VVT actuator operated at 100% Test possible during idle Control the VVT System (Bank1) Turn on and off intake camshaft timing oil control valve assembly ON/OFF Engine stalls or idles roughly when camshaft timing oil control valve assembly turned on Normal engine running or idling when camshaft timing oil control valve assembly off Test possible during idle Activate the Vacuum Pump Leak detection pump ON/OFF - Activate the VSV for Vent Valve Vent valve ON/OFF - Control the Cylinder #1 Fuel Cut Cylinder #1 injector fuel cut ON/OFF Test possible while vehicle stopped and engine idling Control the Cylinder #2 Fuel Cut Cylinder #2 injector fuel cut ON/OFF Control the Cylinder #3 Fuel Cut Cylinder #3 injector fuel cut ON/OFF Control the Cylinder #4 Fuel Cut Cylinder #4 injector fuel cut ON/OFF Control the All Cylinder Fuel Cut All cylinder fuel cut ON/OFF
3. SYSTEM CHECK HINT: Performing a System Check in the Utility menu enables the system, which consists of multiple actuators, to be operated without removing any parts. In addition, it can show whether or not any DTCs are set, and can detect potential malfunctions in the system. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Utility. Perform the System Check by referring to the table below. Tester Display Test Part Control Range Diagnostic Note Evaporative System Check (Automatic Mode) Perform 5 steps in order to operate EVAP key-off monitor automatically 35°C (95°F) or less If no DTCs in Pending after performing this test, system functioning normally Refer to EVAP System. Refer to «EVAP System»(ref-398226-S35517713772011051600000) Evaporative System Check (Manual Mode) Perform 5 steps in order to operate EVAP key-off monitor manually 35°C (95°F) or less Used to detect malfunctioning parts Refer to EVAP System. Refer to «EVAP System»(ref-398226-S35517713772011051600000)

DIAGNOSTIC TROUBLE CODE CHART

HINT

Parameters listed in the chart may not be exactly the same as your readings due to the type of instrument or other factors. If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, follow the " refer to" reference.

*: MIL flashes when a catalyst damaging misfire is detected

SFI SYSTEM