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Engine Control System (Diagnostic Codes (P0010-P0390)): Diagnosis Lexus GX J150

Testing & Diagnostics 24 illustrations ~14597 words

INSPECTION PROCEDURE

HINT

  1. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
  2. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  3. Bank 2 refers to the bank that does not include the No. 1 cylinder.

HINT

DTC P0011, P0012, P0021 or P0022 may be stored when foreign objects in the engine oil are caught in some parts of the system. The DTC will remain set even if the system returns to normal after a short time. Foreign objects are filtered out by the oil filter.

HINT

Abnormal BankTiming Over-advanced (Valve Timing is Out of Specified Range)Timing Over-retarded (Valve Timing is Out of Specified Range)
Bank 1P0011P0012
Bank 2P0021P0022
  1. If DTC P0011 or P0012 is output, check the left bank VVT system for the intake camshaft circuit (for Bank 1).
  2. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  3. If DTC P0021 or P0022 is output, check the right bank VVT system for the intake camshaft circuit (for Bank 2).
  4. Bank 2 refers to the bank that does not include the No. 1 cylinder.
  5. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 220

Scheme 220: PROCEDURE
Scheme 220: PROCEDURE
  1. CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011, P0012, P0021 OR P0022) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. RESULT Result Proceed to P0011, P0012, P0021 or P0022 is output A P0011, P0012, P0021 or P0022 and other DTCs are output B HINT: If any DTCs other than P0011, P0012, P0021 or P0022 are output, troubleshoot those DTCs first. B --> See step 10 A: Go to next step
  2. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Turn the A/C on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Linear (Bank 1) or Control the VVT Linear (Bank 2). Check the engine speed while operating the camshaft timing oil control valve using the Techstream. OK Techstream Operation Specified Condition 0% Normal engine speed 100% Engine idles roughly or stalls HINT: Refer to "Data List / Active Test" [VVT OCV Duty #1, VVT Change Angle #1, VVT OCV Duty #2 and VVT Change Angle #2]. Refer to «DATA LIST / ACTIVE TEST»(ref-524126-S20424571482013012800000) . NG --> See step 4 OK: Go to next step
  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P0011, P0012, P0021 OR P0022) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Read the output pending DTCs using the Techstream. OK No pending DTC output. NG --> See step 4 OK --> See step 9
  4. CHECK VALVE TIMING (CHECK FOR LOOSENESS IN TIMING CHAIN AND WHETHER TIMING CHAIN HAS JUMPED TOOTH) Remove the cylinder head cover LH and RH. Turn the crankshaft pulley and align its groove with the "0" alignment mark of the timing chain cover. Check that the alignment marks of the camshaft timing gears and camshaft timing exhaust gears are at the positions shown in the illustration. HINT: If the alignment marks are not as shown, turn the crankshaft one revolution clockwise. OK Alignment marks on camshaft timing gears are aligned as shown in the illustration. NG --> See step 11 OK: Go to next step
  5. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY Inspect the camshaft timing oil control valve assembly. Refer to «INSPECTION - Step 1»(ref-524262-S19814365142013012800000) . NG --> See step 12 OK: Go to next step
  6. INSPECT OIL CONTROL VALVE FILTER Remove the oil control valve filter. Refer to «DISASSEMBLY»(ref-524246-S09113665982013012800000) . Check that the filter is not clogged. OK Filter is not clogged. NG --> CLEAN OR REPLACE OIL CONTROL VALVE FILTER OK: Go to next step
  7. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY Replace the camshaft timing gear assembly. Refer to «REMOVAL»(ref-524246-S42817166632013012800000) . NEXT: Go to next step
  8. CHECK WHETHER DTC OUTPUT RECURS Perform the Confirmation Driving Pattern. OK No pending DTC is output and All Readiness is NORMAL. HINT: DTC P0011, P0012, P0021 or P0022 is stored when foreign objects in the engine oil are caught in some parts of the system. These codes will remain stored even if the system returns to normal after a short time. These foreign objects are then captured by the oil filter, thus eliminating the source of the problem. NG --> See step 13 OK --> END
  9. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)
  10. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-524126-S26606347652013012800000)
  11. ADJUST VALVE TIMING. Refer to «REASSEMBLY»(ref-524246-S09750024602013012800000)
  12. REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY. Refer to «REMOVAL»(ref-524262-S07212957182013012800000)
  13. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

HINT

  1. If DTC P0013 is output, check the bank 1 VVT system for the exhaust camshaft circuit.
  2. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  3. If DTC P0023 is output, check the bank 2 VVT system for the exhaust camshaft circuit.
  4. Bank 2 refers to the bank that does not include the No. 1 cylinder.
  5. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

HINT

Abnormal BankTiming Over-advanced (Valve Timing Out of Specified Range)Timing Over-retarded (Valve Timing Out of Specified Range)
Bank 1P0014P0015
Bank 2P0024P0025
  1. If DTC P0014 or P0015 is output, check the bank 1 VVT system for the exhaust camshaft circuit.
  2. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  3. If DTC P0024 or P0025 is output, check the bank 2 VVT system for the exhaust camshaft circuit.
  4. Bank 2 refers to the bank that does not include the No. 1 cylinder.
  5. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

HINT

  1. The monitor for this DTC detects when the timing chain is shifted by one tooth or more.
  2. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
  3. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  4. Bank 2 refers to the bank that does not include the No. 1 cylinder.

Note. Inspect the fuses of circuits related to this system before performing the following inspection procedure.

HINT

  1. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
  2. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  3. Bank 2 refers to the bank that does not include the No. 1 cylinder.
  4. Sensor 1 refers to the sensor closest to the engine assembly.
  5. Sensor 2 refers to the sensor farthest away from the engine assembly.

Scheme 221

Scheme 221: PROCEDURE
Scheme 221: PROCEDURE
  1. INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) Inspect the air fuel ratio sensor. Refer to «INSPECTION - Step 1»(ref-524262-S29433167972013012800000) . NG --> See step 9 OK: Go to next step
  2. CHECK TERMINAL VOLTAGE (+B OF AIR FUEL RATIO SENSOR) Disconnect the air fuel ratio sensor connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C20-2 (+B) - Body ground Engine switch on (IG) 11 to 14 V C19-2 (+B) - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *A Bank 1 *B Bank 2 *a Front view of wire harness connector (to Air Fuel Ratio Sensor) NG --> See step 5 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Disconnect the air fuel ratio sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C20-1 (HA1A) - C31-17 (HA1A) Always Below 1 ohms C19-1 (HA2A) - C31-19 (HA2A) Always Below 1 ohms C20-1 (HA1A) or C31-17 (HA1A) - Body ground Always 10 kohms or higher C19-1 (HA2A) or C31-19 (HA2A) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Read the output pending DTCs using the Techstream. RESULT Result Proceed to No pending DTC is output A Pending DTC P0031, P0032, P0051, P0052, P101D or P103D is output B B --> See step 11 A --> See step 10
  5. INSPECT NO. 1 INTEGRATION RELAY (A/F) Inspect the No. 1 integration relay (A/F). Refer to «ON-VEHICLE INSPECTION - Step 4»(ref-524262-S35068267992013012800000) . NG --> See step 8 OK: Go to next step
  6. CHECK HARNESS AND CONNECTOR (NO. 1 INTEGRATION RELAY - AIR FUEL RATIO SENSOR AND BODY GROUND) Disconnect the air fuel ratio sensor connector. Remove the No. 1 integration 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 C20-2 (+B) - 1B-8 Always Below 1 ohms C19-2 (+B) - 1B-8 Always Below 1 ohms 1B-7 - Body ground Always Below 1 ohms C20-2 (+B) or 1B-8 - Body ground Always 10 kohms or higher C19-2 (+B) or 1B-8 - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
  7. CHECK ECM POWER SOURCE CIRCUIT. Refer to «ECM Power Source Circuit»(ref-524264-S01180072842013012800000)
  8. REPLACE NO. 1 INTEGRATION RELAY (A/F). Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-524272-S42449560502013012800000)
  9. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-524262-S00247626492013012800000)
  10. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)
  11. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

Note. Inspect the fuses of circuits related to this system before performing the following inspection procedure.

HINT

  1. Sensor 2 refers to the sensor mounted behind the Three-way Catalytic Converter (TWC) and located far from the engine assembly.
  2. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
  3. Refer to "Data List / Active Test" [O2 Heater B1S2, O2 Heater B2S2, O2 Heater Curr Val B1S2 and O2 Heater Curr Val B2S2]. Refer to «DATA LIST / ACTIVE TEST»(ref-524126-S20424571482013012800000) .
  4. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  5. Bank 2 refers to the bank that does not include the No. 1 cylinder.
  6. Sensor 1 refers to the sensor closest to the engine assembly.
  7. Sensor 2 refers to the sensor farthest away from the engine assembly.

Scheme 222

Scheme 222: PROCEDURE
Scheme 222: PROCEDURE
  1. INSPECT HEATED OXYGEN SENSOR (HEATER RESISTANCE) Inspect the heated oxygen sensor. Refer to «INSPECTION - Step 1»(ref-524262-S21977130912013012800000) . NG --> See step 11 OK: Go to next step
  2. CHECK TERMINAL VOLTAGE (+B OF HEATED OXYGEN SENSOR) Disconnect the heated oxygen sensor connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C22-2 (+B) - Body ground Engine switch on (IG) 11 to 14 V C21-2 (+B) - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *A Bank 1 sensor 2 *B Bank 2 sensor 2 *a Front view of wire harness connector (to Heated Oxygen Sensor) NG --> See step 5 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (HEATED OXYGEN SENSOR - ECM) Disconnect the heated oxygen sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C22-1 (HT1B) - C31-12 (HT1B) Always Below 1 ohms C21-1 (HT2B) - C31-13 (HT2B) Always Below 1 ohms C22-1 (HT1B) or C31-12 (HT1B) - Body ground Always 10 kohms or higher C21-1 (HT2B) or C31-13 (HT2B) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Read the output pending DTCs using the Techstream. RESULT Result Proceed to No pending DTC is output A Pending DTC P0037, P0038, P0057, P0058, P0141, P0161, P102D and/or P105D is output B B --> See step 10 A --> See step 8
  5. INSPECT NO. 1 INTEGRATION RELAY (EFI) Inspect the No. 1 integration relay (EFI). Refer to «ON-VEHICLE INSPECTION - Step 3»(ref-524262-S35068267992013012800000) . NG --> See step 7 OK: Go to next step
  6. CHECK HARNESS AND CONNECTOR (HEATED OXYGEN SENSOR - NO. 1 INTEGRATION RELAY) Disconnect the heated oxygen sensor connector. Remove the No. 1 integration 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 C22-2 (+B) - 1B-4 Always Below 1 ohms C21-2 (+B) - 1B-4 Always Below 1 ohms C22-2 (+B) or 1B-4 - Body ground Always 10 kohms or higher C21-2 (+B) or 1B-4 - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 9
  7. REPLACE NO. 1 INTEGRATION RELAY (EFI). Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-524272-S42449560502013012800000)
  8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)
  9. CHECK ECM POWER SOURCE CIRCUIT. Refer to «ECM Power Source Circuit»(ref-524264-S01180072842013012800000)
  10. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
  11. REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-524262-S09514782142013012800000)

HINT

Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

HINT

Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT

Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 223

Scheme 223: PROCEDURE
Scheme 223: PROCEDURE
  1. READ VALUE USING TECHSTREAM (MAF) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAF. Read the values displayed on the Techstream. RESULT MAF (gm/s) Proceed to 0.0 A 160.0 or more B Between 1.0 and 160.0* C HINT: *: The value must change when the throttle valve is opened or closed with the engine running. B --> See step 6 C --> See step 8 A: Go to next step
  2. INSPECT MASS AIR FLOW METER ASSEMBLY (POWER SOURCE VOLTAGE) Disconnect the mass air flow meter connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C27-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Mass Air Flow Meter Assembly) NG --> See step 5 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the mass air flow meter connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C27-3 (VG) - C29-14 (VG) Always Below 1 ohms C27-2 (E2G) - C29-13 (E2G) Always Below 1 ohms C27-3 (VG) or C29-14 (VG) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. INSPECT MASS AIR FLOW METER ASSEMBLY Inspect the mass air flow meter assembly. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-524262-S41558419042013012800000) . NG --> See step 9 OK --> See step 13
  5. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - NO. 1 INTEGRATION RELAY) Disconnect the mass air flow meter connector. Remove the No. 1 integration 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 C27-1 (+B) - 1B-4 Always Below 1 ohms C27-1 (+B) or 1B-4 - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
  6. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the mass air flow meter connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C27-3 (VG) - C29-14 (VG) Always Below 1 ohms C27-2 (E2G) - C29-13 (E2G) Always Below 1 ohms C27-3 (VG) or C29-14 (VG) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  7. CHECK HARNESS AND CONNECTOR (SENSOR GROUND) Disconnect the mass air flow meter connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C27-2 (E2G) - Body ground Always Below 1 ohms NG --> See step 10 OK --> See step 12
  8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)
  9. REPLACE MASS AIR FLOW METER ASSEMBLY. Refer to «REMOVAL»(ref-524262-S00293573342013012800000)
  10. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
  11. CHECK ECM POWER SOURCE CIRCUIT. Refer to «ECM Power Source Circuit»(ref-524264-S01180072842013012800000)
  12. REPLACE MASS AIR FLOW METER ASSEMBLY. Refer to «REMOVAL»(ref-524262-S00293573342013012800000)
  13. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

HINT

  1. If other DTCs related to different systems that have terminal E2 as the ground terminal are stored simultaneously, there may be an open circuit between terminal E2 and body ground.
  2. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 224

Scheme 224: PROCEDURE
Scheme 224: PROCEDURE
  1. READ VALUE USING TECHSTREAM (MAP) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / MAP. Read the MAP value. OK Same value as the actual atmospheric pressure. HINT: Standard atmospheric pressure is 101 kPa. For every 100 m increase in elevation, pressure drops by 1 kPa. This varies by weather (high atmospheric pressure, low atmospheric pressure). Also, check "Atmosphere Pressure" in the Data List. NG --> See step 2 OK --> See step 8
  2. CHECK MANIFOLD ABSOLUTE PRESSURE SENSOR (TERMINAL VOLTAGE) Disconnect the manifold absolute pressure sensor connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C44-3 (VC) - C44-2 (E2) Engine switch on (IG) 4.5 to 5.5 V C44-1 (PIM) - C44-2 (E2) Engine switch on (IG) 4.0 to 5.0 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Manifold Absolute Pressure Sensor) NG --> See step 5 OK: Go to next step
  3. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR Replace the manifold absolute pressure sensor. Refer to «REMOVAL»(ref-524262-S01653891792013012800000) . NEXT: Go to next step
  4. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Turn the engine switch off and wait for at least 30 seconds. Turn the engine switch on (IG) and wait for 5 seconds. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. RESULT Display (DTC output) Proceed to No DTC output A DTC P0107 and/or P0108 output B B --> See step 6 A --> END
  5. CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM) Disconnect the manifold absolute pressure sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition C44-1 (PIM) - C29-8 (PIM) Always Below 1 ohms C44-3 (VC) - C28-16 (VCV2) Always Below 1 ohms C44-2 (E2) - C29-7 (E2) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition C44-1 (PIM) or C29-8 (PIM) - Body ground Always 10 kohms or higher C44-3 (VC) or C28-16 (VCV2) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
  6. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
  7. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
  8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)

Scheme 225

Scheme 225: DESCRIPTION
Scheme 225: DESCRIPTION
  1. The intake air temperature sensor, mounted on the mass air flow meter, monitors the intake air temperature. The intake air temperature sensor has a built-in thermistor with a resistance that varies according to the temperature of the intake air. When the intake air temperature is low, the resistance of the thermistor increases. When the temperature is high, the resistance drops. These variations in resistance are transmitted to the ECM as voltage changes see scheme 1
  2. The intake air temperature sensor is powered by a 5 V supply from the THA terminal of the ECM, via resistor R.
  3. Resistor R and the intake air temperature sensor are connected in series. When the resistance value of the intake air temperature sensor changes according to changes in the intake air temperature, the voltage at terminal THA also varies. Based on this signal, the ECM increases the fuel injection volume when the engine is cold to improve driveability.
DTC No.DTC Detection ConditionTrouble Area
P0111Either condition is met (2 trip detection logic): The intake air temperature change from the previous trip warm up to the following trip is small. The change in the intake air temperature after engine start is less than the threshold value.Mass air flow meter assembly

HINT

Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 226

Scheme 226: PROCEDURE
Scheme 226: PROCEDURE

Scheme 227

Scheme 227
Scheme 227
  1. READ VALUE USING TECHSTREAM (INTAKE AIR) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / All Data / Intake Air. Read the value displayed on the Techstream. OK Same as actual intake air temperature RESULT Result Proceed to -40°C (-40°F) A 140°C (284°F) or higher B Same as actual intake air temperature C HINT: If there is an open circuit, the Techstream indicates -40°C (-40°F). If there is a short circuit, the Techstream indicates 140°C (284°F) or higher. B --> See step 4 C --> See step 6 A: Go to next step
  2. READ VALUE USING TECHSTREAM (CHECK FOR OPEN IN WIRE HARNESS) Disconnect the mass air flow meter connector. Connect terminals 4 (THA) and 5 (E2) of the mass air flow meter wire harness side connector. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / All Data / Intake Air. Read the value displayed on the Techstream. Standard value 140°C (284°F) or higher TEXT IN ILLUSTRATION *1 Mass air flow meter assembly *2 ECM *a Front view of wire harness connector (to Mass Air Flow Meter Assembly) NG --> See step 3 OK --> See step 7
  3. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the mass air flow meter connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C27-4 (THA) - C29-15 (THA) Always Below 1 ohms C27-5 (E2) - C29-7 (E2) Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 8
  4. READ VALUE USING TECHSTREAM (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the mass air flow meter connector. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / All Data / Intake Air. Read the value displayed on the Techstream. Standard value -40°C (-40°F) TEXT IN ILLUSTRATION *1 Mass Air Flow Meter Assembly *2 ECM NG --> See step 5 OK --> See step 9
  5. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the mass air flow meter connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C27-4 (THA) or C29-15 (THA) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 10
  6. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)
  7. CONFIRM GOOD CONNECTION TO SENSOR. IF OK, REPLACE MASS AIR FLOW METER ASSEMBLY. Refer to «REMOVAL»(ref-524262-S00293573342013012800000)
  8. CONFIRM GOOD CONNECTION TO ECM. IF OK, REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
  9. REPLACE MASS AIR FLOW METER ASSEMBLY. Refer to «REMOVAL»(ref-524262-S00293573342013012800000)
  10. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

HINT

Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 228

Scheme 228: PROCEDURE
Scheme 228: PROCEDURE

Scheme 229

Scheme 229
Scheme 229
  1. READ VALUE USING TECHSTREAM (COOLANT TEMP) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Coolant Temp. Read the value displayed on the Techstream. Standard value Between 75 and 100°C (167 and 212°F) with warm engine RESULT Result Proceed to -40°C (-40°F) A 140°C (284°F) or higher B Between 75 and 100°C (167 and 212°F) C HINT: If there is an open circuit, the Techstream indicates -40°C (-40°F). If there is a short circuit, the Techstream indicates 140°C (284°F) or higher. B --> See step 4 C --> See step 6 A: Go to next step
  2. READ VALUE USING TECHSTREAM (CHECK FOR OPEN IN WIRE HARNESS) Disconnect the engine coolant temperature sensor connector. Connect terminals 1 and 2 of the engine coolant temperature sensor connector on the wire harness side. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Coolant Temp. Read the value displayed on the Techstream. Standard value 140°C (284°F) or higher TEXT IN ILLUSTRATION *1 Engine Coolant Temperature Sensor *2 ECM *a Front view of wire harness connector (to Engine Coolant Temperature Sensor) NG --> See step 3 OK --> See step 7
  3. CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) Disconnect the engine coolant temperature sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C18-2 - C30-17 (THW) Always Below 1 ohms C18-1 - C29-7 (E2) Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 8
  4. READ VALUE USING TECHSTREAM (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the engine coolant temperature sensor connector. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Coolant Temp. Read the value displayed on the Techstream. Standard value -40°C (-40°F) TEXT IN ILLUSTRATION *1 Engine Coolant Temperature Sensor *2 ECM NG --> See step 5 OK --> See step 9
  5. CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) Disconnect the engine coolant temperature sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C18-2 or C30-17 (THW) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 10
  6. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)
  7. CONFIRM GOOD CONNECTION TO SENSOR. IF OK, REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-524262-S05147910282013012800000)
  8. CONFIRM GOOD CONNECTION TO ECM. IF OK, REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
  9. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-524262-S05147910282013012800000)
  10. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

HINT

  1. If DTC P0115, P0117, P0118 or P0125 is stored simultaneously with DTC P0116, the engine coolant temperature sensor may have an open or short circuit. Troubleshoot those DTCs first.
  2. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

HINT

  1. These DTCs relate to the throttle position sensor.
  2. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 230

Scheme 230: PROCEDURE
Scheme 230: PROCEDURE
  1. READ VALUE USING TECHSTREAM (THROTTLE POSITION) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Throttle Position No. 1 and Throttle Position No. 2. Check the values displayed on the Techstream. RESULT Throttle Position No. 1 (VTA1) When Accelerator Pedal Released Throttle Position No. 2 (VTA2) When Accelerator Pedal Released Throttle Position No. 1 (VTA1) When Accelerator Pedal Depressed Throttle Position No. 2 (VTA2) When Accelerator Pedal Depressed Trouble Area Proceed to 0 to 0.2 V 0 to 0.2 V 0 to 0.2 V 0 to 0.2 V VC circuit open A 4.5 to 5.0 V 4.5 to 5.0 V 4.5 to 5.0 V 4.5 to 5.0 V E2 circuit open A 0 to 0.2 V, or 4.5 to 5.0 V 2.1 to 3.1 V (Fail-safe) 0 to 0.2 V, or 4.5 to 5.0 V 2.1 to 3.1 V (Fail-safe) VTA1 circuit open or shorted to ground A 0.6 to 1.4 V (Fail-safe) 0 to 0.2 V, or 4.5 to 5.0 V 0.6 to 1.4 V (Fail-safe) 0 to 0.2 V, or 4.5 to 5.0 V VTA2 circuit open or shorted to ground A 0.5 to 1.1 V 2.1 to 3.1 V 3.2 to 4.8 V (Not fail-safe) 4.6 to 5.0 V (Not fail-safe) TP sensor circuit normal B HINT: DTC P0121 is stored when the VTA1 and VTA2 output voltages are not consistent with the sensor characteristics. Therefore, check the freeze frame data when this DTC is stored. Use the following formula to confirm the relative differences in voltage. Characteristic Sensor Output VTA2 x 0.8 is approximately equal to VTA1 + 1.11 V VTA1: Throttle Position No. 1 VTA2: Throttle Position No. 2 If DTC P0121 is output, proceed to "Check Harness And Connector (Throttle Position Sensor - ECM)". B --> See step 5 A: Go to next step
  2. CHECK HARNESS AND CONNECTOR (THROTTLE POSITION SENSOR - ECM) Disconnect the throttle body connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C7-5 (VC) - C30-13 (VCTA) Always Below 1 ohms C7-6 (VTA) - C30-15 (VTA1) Always Below 1 ohms C7-4 (VTA2) - C30-16 (VTA2) Always Below 1 ohms C7-3 (E2) - C30-14 (ETA) Always Below 1 ohms C7-5 (VC) or C30-13 (VCTA) - Body ground Always 10 kohms or higher C7-6 (VTA) or C30-15 (VTA1) - Body ground Always 10 kohms or higher C7-4 (VTA2) or C30-16 (VTA2) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. INSPECT ECM (VC VOLTAGE) Disconnect the throttle body connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C7-5 (VC) - C7-3 (E2) Engine switch on (IG) 4.5 to 5.5 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Throttle Body Assembly) NG --> See step 6 OK: Go to next step
  4. REPLACE THROTTLE BODY ASSEMBLY Replace the throttle body assembly. Refer to «REMOVAL»(ref-524262-S00817459492013012800000) . NEXT: Go to next step
  5. CHECK WHETHER DTC OUTPUT RECURS (THROTTLE POSITION SENSOR DTCS) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Read the output DTCs. RESULT Result Proceed to P0120, P0121, P0122, P0123, P0220, P0222, P0223 and/or P2135 is output A No DTC is output B B --> END A --> See step 7
  6. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
  7. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

HINT

  1. If DTC P0115, P0116, P0117 or P0118 is stored simultaneously with DTC P0125, the engine coolant temperature sensor may have an open or short circuit. Troubleshoot those DTCs first.
  2. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

HINT

  1. This DTC relates to the thermostat.
  2. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

HINT

Malfunctioning areas can be identified by performing the Control the Injection Volume function provided in the Active Test. The Control the Injection Volume function can help to determine whether the air fuel ratio sensor, heated oxygen sensor and other potential trouble areas are malfunctioning.

The following instructions describe how to conduct the Control the Injection Volume operation using the Techstream.

  1. Connect the Techstream to the DLC3.
  2. Start the engine and turn the Techstream on.
  3. Warm up the engine and run the engine at an engine speed of 2500 rpm for approximately 90 seconds.
  4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume.
  5. Perform the Active Test operation with the engine idling.
  6. Monitor the output voltages of the air fuel ratio and heated oxygen sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2) displayed on the Techstream.

HINT

  1. Change the fuel injection volume within the range of -12.0% to +12.0%. The injection volume can be changed in fine gradations.
  2. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.
Techstream Display (Sensor)Injection VolumeStatusVoltage
AFS Voltage B1S1 or AFS Voltage B2S1 (A/F)+12%RichBelow 3.1 V
AFS Voltage B1S1 or AFS Voltage B2S1 (A/F)12%LeanHigher than 3.4 V
O2S B1S2 or O2S B2S2 (HO2)+12%RichHigher than 0.55 V
O2S B1S2 or O2S B2S2 (HO2)12%LeanBelow 0.4 V

Note. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.

Case Air Fuel Ratio Sensor (Sensor 1) Output Voltage Heated Oxygen Sensor (Sensor 2) Output Voltage Main Suspected Trouble Area 1 - 2 Air fuel ratio sensor Air fuel ratio sensor heater Air fuel ratio sensor circuit 3 Heated oxygen sensor Heated oxygen sensor heater Heated oxygen sensor circuit 4 Fuel injector assembly Fuel pressure Gas leak from exhaust system (air-fuel ratio extremely rich or lean)

HINT

  1. Following the Control the Injection Volume procedure enables technicians to check and graph the voltage outputs of both the air fuel ratio and heated oxygen sensors.
  2. To display the graph, enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume / All Data / AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2.
  3. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
  4. If the OX1B wire from the ECM connector is short-circuited to the +B wire, DTC P0136 will be stored.
  5. If the OX2B wire from the ECM connector is short-circuited to the +B wire, DTC P0156 will be stored.
  6. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  7. Bank 2 refers to the bank that does not include the No. 1 cylinder.
  8. Sensor 1 refers to the sensor closest to the engine assembly.
  9. Sensor 2 refers to the sensor farthest away from the engine assembly.

Scheme 231

Scheme 231: PROCEDURE
Scheme 231: PROCEDURE

Scheme 232

Scheme 232
Scheme 232
  1. READ OUTPUT DTC Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. RESULT Result Proceed to P0138 or P0158 is output A P0137 or P0157 is output B P0136 or P0156 is output C P0139 or P0159 is output D P0136, P0137, P0138, P0156, P0157 or P0158 and other DTCs are output E B --> See step 8 C --> See step 4 D --> See step 21 E --> See step 38 A: Go to next step
  2. INSPECT HEATED OXYGEN SENSOR (CHECK FOR SHORT) Disconnect the heated oxygen sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2 (+B) - 3 (OX2B) Always 10 kohms or higher 2 (+B) - 3 (OX1B) Always 10 kohms or higher 2 (+B) - 4 (E1) Always 10 kohms or higher TEXT IN ILLUSTRATION *a Component without harness connected (to Heated Oxygen Sensor for Bank 2) *b Component without harness connected (to Heated Oxygen Sensor for Bank 1) NG --> See step 27 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT) Turn the engine switch off and wait for 5 minutes. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C31-12 (HT1B) - C28-2 (OX1B) Always 10 kohms or higher C31-13 (HT2B) - C28-4 (OX2B) Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE ECM
  4. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume / All Data / O2S B1S2 or O2S B2S2. Change the fuel injection volume using the Techstream, monitoring the voltage output of the heated oxygen sensors displayed on the Techstream. HINT: Change the fuel injection volume within the range of -12% to +12%. The injection volume can be changed in fine gradations within this range. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds. Standard voltage Fluctuates between 0.4 V or less and 0.5 V or higher. NG --> See step 8 OK: Go to next step
  5. PERFORM ACTIVE TEST USING TECHSTREAM (INJECTION VOLUME) Connect the Techstream to the DLC3. Turn the Techstream on. Start the engine. Warm up the engine. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume. Change the fuel injection volume using the Techstream and monitor the voltage output of the air fuel ratio and heated oxygen sensors displayed on the Techstream. HINT: Change the fuel injection volume within the range of -12% to +12%. The injection volume can be changed in fine gradations within this range. The air fuel ratio sensor is displayed as AFS Voltage B1S1 or AFS Voltage B2S1, and the heated oxygen sensor is displayed as O2S B1S2 or O2S B2S2 on the Techstream. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds. RESULT Techstream Display (Sensor) Voltage Variation Proceed to AFS Voltage B1S1 AFS Voltage B2S1 Alternates between higher than and below 3.3 V OK Remains at higher than 3.3 V NG Remains at below 3.3 V NG HINT: A normal heated oxygen sensor voltage (O2S B1S2 or O2S B2S2) reacts in accordance with increases and decreases in fuel injection volumes. When the air fuel ratio sensor voltage remains at either below or higher than 3.3 V despite the heated oxygen sensor indicating a normal reaction, the air fuel ratio sensor is malfunctioning. NG --> See step 16 OK: Go to next step
  6. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher. HINT: When performing the Active Test, make sure the shift lever is in P or N. The A/C switch and all accessory switches should be off. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position. Confirm that Throttle Idle Position is ON and check the engine idling condition and the value of MAP in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. OK MAP and idling condition change in response to EGR step position as follows. Standard - EGR Step Position (Active Test) Step 0 Step 0 to 30 Idling condition Steady idling Idling changes from steady to rough idling or engine stalls MAP (Data List) 20 to 40 kPa (150 to 300 mmHg) MAP value is at least 10 kPa (75 mmHg) higher than when EGR valve is fully closed OK --> CHECK EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO AND REPAIR CAUSE (FUEL INJECTOR ASSEMBLY, FUEL PRESSURE, GAS LEAK FROM SYSTEM) NG --> See step 7
  7. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly. Refer to «REMOVAL»(ref-524251-S06751532262013012800000) . Check if the EGR valve is stuck open. OK EGR valve is tightly closed. NG --> See step 33 OK --> CHECK EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO AND REPAIR CAUSE (FUEL INJECTOR ASSEMBLY, FUEL PRESSURE, GAS LEAK FROM SYSTEM)
  8. CHECK FOR EXHAUST GAS LEAK Check for exhaust gas leakage. OK No gas leakage. NG --> REPAIR OR REPLACE EXHAUST GAS LEAKAGE POINT OK: Go to next step
  9. INSPECT HEATED OXYGEN SENSOR (HEATER RESISTANCE) See step 1 NG --> See step 30 OK: Go to next step
  10. CHECK HARNESS AND CONNECTOR (HEATED OXYGEN SENSOR - ECM) Disconnect the heated oxygen sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C22-1 (HT1B) - C31-12 (HT1B) Always Below 1 ohms C22-3 (OX1B) - C28-2 (OX1B) Always Below 1 ohms C22-4 (E1) - C28-1 (EX1B) Always Below 1 ohms C21-1 (HT2B) - C31-13 (HT2B) Always Below 1 ohms C21-3 (OX2B) - C28-4 (OX2B) Always Below 1 ohms C21-4 (E1) - C28-3 (EX2B) Always Below 1 ohms C22-1 (HT1B) or C31-12 (HT1B) - Body ground Always 10 kohms or higher C22-3 (OX1B) or C28-2 (OX1B) - Body ground Always 10 kohms or higher C21-1 (HT2B) or C31-13 (HT2B) - Body ground Always 10 kohms or higher C21-3 (OX2B) or C28-4 (OX2B) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  11. REPLACE HEATED OXYGEN SENSOR Replace the heated oxygen sensor. Refer to «REMOVAL»(ref-524262-S09514782142013012800000) . NEXT: Go to next step
  12. PERFORM CONFIRMATION DRIVING PATTERN Perform Confirmation Driving Pattern (P0136, P0137, P0138, P0156, P0157 and P0158). NEXT: Go to next step
  13. CHECK WHETHER DTC OUTPUT RECURS (DTC P0136, P0137, P0138, P0156, P0157 OR P0158 IS OUTPUT AGAIN) Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input DTCs: P0136, P0137, P0138, P0156, P0157 and P0158. Check that the DTC monitor is NORMAL. If the DTC monitor is INCOMPLETE, perform the drive pattern again but increase the vehicle speed. RESULT Display (DTC Output) Proceed to ABNORMAL (P0136, P0137, P0138, P0156, P0157 or P0158 output) A NORMAL (No DTC output) B B --> END A: Go to next step
  14. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher. HINT: When performing the Active Test, make sure the shift lever is in P or N. The A/C switch and all accessory switches should be off. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position. Confirm that Throttle Idle Position is ON and check the engine idling condition and the value of MAP in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. OK MAP and idling condition change in response to EGR step position as follows. Standard - EGR Step Position (Active Test) Step 0 Step 0 to 30 Idling condition Steady idling Idling changes from steady to rough idling or engine stalls MAP (Data List) 20 to 40 kPa (150 to 300 mmHg) MAP value is at least 10 kPa (75 mmHg) higher than when EGR valve is fully closed OK --> See step 28 NG --> See step 15
  15. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly. Refer to «REMOVAL»(ref-524251-S06751532262013012800000) . Check if the EGR valve is stuck open. OK EGR valve is tightly closed. NG --> See step 34 OK --> See step 28
  16. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-524262-S00247626492013012800000) . NEXT: Go to next step
  17. PERFORM CONFIRMATION DRIVING PATTERN Perform Confirmation Driving Pattern (P0136, P0137, P0138, P0156, P0157 and P0158). NEXT: Go to next step
  18. CHECK WHETHER DTC OUTPUT RECURS (DTC P0136, P0137, P0138, P0156, P0157 OR P0158 IS OUTPUT AGAIN) Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input DTCs: P0136, P0137, P0138, P0156, P0157 or P0158. Check that the DTC monitor is NORMAL. If the DTC monitor is INCOMPLETE, perform the drive pattern again but increase the vehicle speed. RESULT Display (DTC Output) Proceed to ABNORMAL (P0136, P0137, P0138, P0156, P0157 or P0158 output) A NORMAL (No DTC output) B B --> END A: Go to next step
  19. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher. HINT: When performing the Active Test, make sure the shift lever is in P or N. The A/C switch and all accessory switches should be off. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position. Confirm that Throttle Idle Position is ON and check the engine idling condition and the value of MAP in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. OK MAP and idling condition change in response to EGR step position as follows. Standard - EGR Step Position (Active Test) Step 0 Step 0 to 30 Idling condition Steady idling Idling changes from steady to rough idling or engine stalls MAP (Data List) 20 to 40 kPa (150 to 300 mmHg) MAP value is at least 10 kPa (75 mmHg) higher than when EGR valve is fully closed OK --> See step 29 NG --> See step 20
  20. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly. Refer to «REMOVAL»(ref-524251-S06751532262013012800000) . Check if the EGR valve is stuck open. OK EGR valve is tightly closed. NG --> See step 35 OK --> See step 31
  21. CHECK FOR EXHAUST GAS LEAK Check for exhaust gas leak. OK No gas leakage. NG --> REPAIR OR REPLACE EXHAUST GAS LEAKAGE POINT OK: Go to next step
  22. CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT) Turn the engine switch off and wait for 5 minutes. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C31-12 (HT1B) - C28-2 (OX1B) Always 10 kohms or higher C31-13 (HT2B) - C28-4 (OX2B) Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  23. PERFORM CONFIRMATION DRIVING PATTERN Perform Confirmation Driving Pattern (P0139 and P0159). NEXT: Go to next step
  24. READ DTC OUTPUT (DTC P0139 OR P0159 IS OUTPUT AGAIN) Read the DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . RESULT Result Proceed to P0139 or P0159 is output A No DTC is output B B --> See step 32 A: Go to next step
  25. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher. HINT: When performing the Active Test, make sure the shift lever is in P or N. The A/C switch and all accessory switches should be off. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position. Confirm the Throttle Idle Position is ON and check the engine idling condition and MAP values in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. OK MAP and idling condition change in response to EGR step position as follows. Standard - EGR Step Position (Active Test) 0 Steps 0 to 30 Steps Idling condition Steady idling Idling changes from steady to rough idling or engine stall MAP (Data List) 20 to 40 kPa (150 to 300 mmHg) MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed OK --> See step 36 NG --> See step 26
  26. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly. Refer to «REMOVAL»(ref-524251-S06751532262013012800000) . Check if the EGR valve is stuck open. OK EGR valve is tightly closed. NG --> See step 37 OK --> See step 31
  27. REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-524262-S09514782142013012800000)
  28. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-524262-S00247626492013012800000)
  29. REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-524262-S09514782142013012800000)
  30. REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-524262-S09514782142013012800000)
  31. REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-524262-S09514782142013012800000)
  32. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)
  33. REPLACE EGR VALVE ASSEMBLY. Refer to «REMOVAL»(ref-524251-S06751532262013012800000)
  34. REPLACE EGR VALVE ASSEMBLY. Refer to «REMOVAL»(ref-524251-S06751532262013012800000)
  35. REPLACE EGR VALVE ASSEMBLY. Refer to «REMOVAL»(ref-524251-S06751532262013012800000)
  36. REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-524262-S09514782142013012800000)
  37. REPLACE EGR VALVE ASSEMBLY. Refer to «REMOVAL»(ref-524251-S06751532262013012800000)
  38. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-524126-S26606347652013012800000)

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT

  1. A low air fuel ratio sensor voltage could be caused by a rich air fuel mixture. Check for conditions that would cause the engine to run rich.
  2. A high air fuel ratio sensor voltage could be caused by a lean air fuel mixture. Check for conditions that would cause the engine to run lean.
  3. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  4. Bank 2 refers to the bank that does not include the No. 1 cylinder.
  5. Sensor 1 refers to the sensor closest to the engine assembly.
  6. Sensor 2 refers to the sensor farthest away from the engine assembly.
  7. Read freeze frame data using the Techstream. The ECM 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

  1. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
  2. A low air fuel ratio sensor voltage could be caused by a rich air-fuel mixture. Check for conditions that would cause the engine to run rich.
  3. A high air fuel ratio sensor voltage could be caused by a lean air-fuel mixture. Check for conditions that would cause the engine to run lean.
  4. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  5. Bank 2 refers to the bank that does not include the No. 1 cylinder.
  6. Sensor 1 refers to the sensor closest to the engine assembly.
  7. Sensor 2 refers to the sensor farthest away from the engine assembly.

This troubleshooting procedure is based on the premise that the engine can be started. If the engine cannot be started, proceed to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE .

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Scheme 233

Scheme 233: PROCEDURE
Scheme 233: PROCEDURE
  1. CHECK FOR DTC (B1500) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Combination Meter / Trouble Codes. Read the DTCs. RESULT Result Proceed to DTC B1500 is not output A DTC B1500 is output B B --> See step 21 A: Go to next step
  2. PERFORM ACTIVE TEST USING TECHSTREAM (FUEL PUMP) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed. Check whether operating sounds can be heard while operating the fuel pump using the Techstream. OK Operating sounds can be heard from fuel pump. NG --> See step 6 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (FUEL PUMP ECU - ECM, BODY GROUND) Disconnect the fuel pump ECU connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition S7-1 (FPC) - G44-3 (FPC) Always Below 1 ohms S7-2 (DI) - G45-26 (DI) Always Below 1 ohms S7-3 (E) - Body ground Always Below 1 ohms S7-1 (FPC) or G44-3 (FPC) - Body ground Always 10 kohms or higher S7-2 (DI) or G45-26 (DI) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. REPLACE FUEL PUMP ECU Replace the fuel pump ECU. Refer to «REMOVAL»(ref-524269-S08258622802013012800000) . NEXT: Go to next step
  5. CHECK WHETHER DTC OUTPUT RECURS Check that there are 17 liters (18 US qts, 15 Imp. qts) or more of fuel remaining. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Crank the engine for 15 seconds. Idle the engine for 1 minute. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. RESULT Result Proceed to DTC is not output A DTC P0230 is output B B --> See step 18 A --> END
  6. INSPECT CIRCUIT OPENING RELAY (C/OPN) Inspect the circuit opening relay (C/OPN). Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-524262-S35068267992013012800000) . NG --> REPLACE CIRCUIT OPENING RELAY (C/OPN) OK: Go to next step
  7. INSPECT CIRCUIT OPENING RELAY (C/OPN) (POWER SOURCE VOLTAGE) Remove the circuit opening relay (C/OPN) from the engine room relay block. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C/OPN relay (2) - Body ground Engine switch on (IG) 11 to 14 V C/OPN relay (5) - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Engine Room Relay Block *2 Circuit Opening Relay (C/OPN) NG --> See step 14 OK: Go to next step
  8. CHECK HARNESS AND CONNECTOR (CIRCUIT OPENING RELAY (C/OPN) - ECM, FUEL PUMP ECU) Remove the circuit opening relay (C/OPN) from the engine room relay block. Disconnect the ECM connector. Disconnect the fuel pump ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C/OPN relay (1) - G45-8 (FC) Always Below 1 ohms C/OPN relay (3) - S7-4 (+B) Always Below 1 ohms C/OPN relay (1) or G45-8 (FC) - Body ground Always 10 kohms or higher C/OPN relay (3) or S7-4 (+B) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  9. CHECK HARNESS AND CONNECTOR (FUEL PUMP - FUEL PUMP ECU) Disconnect the fuel pump connector. Disconnect the fuel pump ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition S4-4 (B2) - S8-1 (FP) Always Below 1 ohms S4-5 (E2) - S8-2 (FP-) Always Below 1 ohms S4-4 (B2) or S8-1 (FP) - Body ground Always 10 kohms or higher S4-5 (E2) or S8-2 (FP-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  10. INSPECT FUEL PUMP Inspect the fuel pump. Refer to «INSPECTION - Step 1»(ref-524269-S37352554872013012800000) . NG --> See step 20 OK: Go to next step
  11. CHECK HARNESS AND CONNECTOR (FUEL PUMP ECU - ECM, BODY GROUND) Disconnect the fuel pump ECU connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition S7-1 (FPC) - G44-3 (FPC) Always Below 1 ohms S7-2 (DI) - G45-26 (DI) Always Below 1 ohms S7-3 (E) - Body ground Always Below 1 ohms S7-1 (FPC) or G44-3 (FPC) - Body ground Always 10 kohms or higher S7-2 (DI) or G45-26 (DI) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  12. REPLACE FUEL PUMP ECU Replace the fuel pump ECU. Refer to «REMOVAL»(ref-524269-S08258622802013012800000) . NEXT: Go to next step
  13. CHECK WHETHER DTC OUTPUT RECURS Check that there are 17 liters (18 US qts, 15 Imp. qts) or more of fuel remaining. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Crank the engine for 15 seconds. Idle the engine for 1 minute. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. RESULT Result Proceed to DTC is not output A DTC P0230 is output B B --> See step 19 A --> END
  14. CHECK HARNESS AND CONNECTOR (CIRCUIT OPENING RELAY (C/OPN) - FUEL PUMP RELAY (FUEL PMP), NO. 1 INTEGRATION RELAY) Remove the circuit opening relay (C/OPN) from the engine room relay block. Remove the fuel pump relay (FUEL PMP) from the engine room relay block. Remove the No. 1 integration relay from the engine room relay block. Disconnect the No. 1 integration relay connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C/OPN relay (2) - 1A-5 Always Below 1 ohms C/OPN relay (5) - FUEL PMP relay (3) Always Below 1 ohms C/OPN relay (2) or 1A-5 - Body ground Always 10 kohms or higher C/OPN relay (5) or FUEL PMP relay (3) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  15. INSPECT FUEL PUMP RELAY (FUEL PMP) Inspect the fuel pump relay (FUEL PMP). Refer to «ON-VEHICLE INSPECTION - Step 6»(ref-524262-S35068267992013012800000) . NG --> REPLACE FUEL PUMP RELAY (FUEL PMP) OK: Go to next step
  16. CHECK HARNESS AND CONNECTOR (FUEL PUMP RELAY (FUEL PMP) - NO. 1 INTEGRATION RELAY, BATTERY, BODY GROUND) Remove the fuel pump relay (FUEL PMP) from the engine room relay block. Remove the No. 1 integration relay from the engine room relay block. Disconnect the No. 1 integration relay connector. Disconnect the cable from the positive (+) battery terminal. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition FUEL PMP relay (1) - 1B-4 Always Below 1 ohms FUEL PMP relay (5) - Positive (+) battery cable Always Below 1 ohms FUEL PMP relay (2) - Body ground Always Below 1 ohms FUEL PMP relay (1) or 1B-4 - Body ground Always 10 kohms or higher FUEL PMP relay (5) or Positive (+) battery cable - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 17
  17. GO TO ECM POWER SOURCE CIRCUIT. Refer to «ECM Power Source Circuit»(ref-524264-S01180072842013012800000)
  18. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
  19. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
  20. REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-524269-S41706281042013012800000)
  21. GO TO DTC B1500. Refer to «DTC B1500: Fuel Sender Open Detected»(ref-524274-S35341849712013012800000)

Scheme 234

Scheme 234: DESCRIPTION
Scheme 234: DESCRIPTION
*1Camshaft Position Sensor
*2Crankshaft Position Sensor
*3ECM

TEXT IN ILLUSTRATION

When the engine misfires, high concentrations of hydrocarbons (HC) enter the exhaust gas. Extremely high HC concentration levels can cause increases in exhaust emissions levels. High concentrations of HC can also cause increases in the Three-way Catalytic Converter (TWC) temperature, which may cause damage to the Three-way Catalytic Converter (TWC). To prevent these increases in emissions and to limit the possibility of thermal damage, the ECM monitors the misfire rate. When the temperature of the Three-way Catalytic Converter (TWC) reaches the point of thermal degradation, the MIL blinks. To monitor misfires, the ECM uses both the camshaft position sensor and the crankshaft position sensor. The camshaft position sensor is used to identify any misfiring cylinders and the crankshaft position sensor is used to measure variations in the crankshaft rotation speed. Misfires are counted as when the crankshaft rotation speed variations exceed predetermined thresholds.

If the misfire rate exceeds the threshold level, the ECM illuminates the MIL and stores a DTC.

DTC No.DTC Detection ConditionTrouble Area
P0300Simultaneous misfiring of several cylinders occurs and one of the following conditions below is detected (2 trip detection logic): High temperature misfire occurs in the Three-way Catalytic Converter (TWC) (MIL blinks). Catalyst deterioration misfire occurs (MIL illuminates).Open or short in engine wire harness Connector connection Vacuum hose connections Ignition system Fuel injector assembly Fuel pressure Mass air flow meter assembly Engine coolant temperature sensor Compression pressure Valve timing PCV valve and hose PCV hose connections Air induction system EGR valve assembly ECM
P0301 P0302 P0303 P0304 P0305 P0306 P0307 P0308Misfiring of specific cylinder occurs and one of the following conditions below is detected (2 trip detection logic): High temperature misfire occurs in the Three-way Catalytic Converter (TWC) (MIL blinks). Catalyst deterioration misfire occurs (MIL illuminates).

When multiple DTCs for misfiring cylinders are stored, but DTC P0300 is not stored, it indicates that misfires have been detected in different cylinders at different times. DTC P0300 is only stored when several misfiring cylinders are detected at the same time.

HINT

  1. If any DTCs other than misfire DTCs are output, troubleshoot those DTCs first.
  2. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
  3. If the misfire does not recur when the vehicle is brought to the workshop, reproduce the conditions stored in the ECM as freeze frame data.
  4. If the misfire still cannot be reproduced even though the conditions stored in the ECM as freeze frame data have been reproduced, one of the following factors may be a cause of the problem: The fuel level is low. Improper fuel is being used. The spark plugs are dirty.
  5. After finishing repairs, check that no misfires occur in each cylinder (cylinder No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 7 and No. 8).
  6. Be sure to confirm that no misfiring cylinder DTCs are stored again by conducting the confirmation driving pattern after the repairs.
  7. For 6 and 8 cylinder engines, the ECM intentionally does not store the specific misfiring cylinder DTCs at high engine speed. If misfires only occur during high engine speed driving, only DTC P0300 is stored. In the event of DTC P0300 being output, perform the following operations: Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Start the engine and conduct the confirmation driving pattern. Read the misfiring rates of each cylinder or the DTCs using the Techstream. Repair the cylinders that have a high misfiring rate or are indicated by the DTCs. After finishing repairs, conduct the confirmation driving pattern again in order to verify that DTC P0300 is not stored.
  8. When one of Short FT #1, Long FT #1, Short FT #2 or Long FT #2 in the freeze frame data is outside the range of +/-15%, the air-fuel ratio may be rich (-15% or less) or lean (+15% or more).
  9. When Coolant Temp in the freeze frame data is below 75°C (167°F), the misfires may have occurred only while warming up the engine.
  10. An extremely imbalanced drive wheel which causes body vibration may cause misfire DTCs to be stored.

HINT

  1. DTCs P0327 and P0328 are for the bank 1 sensor 1 knock sensor circuit.
  2. DTCs P032C and P032D are for the bank 1 sensor 2 knock sensor circuit.
  3. DTCs P0332 and P0333 are for the bank 2 sensor 1 knock sensor circuit.
  4. DTCs P033C and P033D are for the bank 2 sensor 2 knock sensor circuit.
  5. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
  6. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  7. Bank 2 refers to the bank that does not include the No. 1 cylinder.

Scheme 235

Scheme 235: PROCEDURE
Scheme 235: PROCEDURE

Scheme 236

Scheme 236
Scheme 236
  1. INSPECT KNOCK SENSOR Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C29-11 (KNK1) - C29-12 (EKNK) 20°C (68°F) 120 to 280 kohms C29-5 (KNK2) - C29-6 (EKN2) 20°C (68°F) 120 to 280 kohms C29-9 (KNK3) - C29-10 (EKN3) 20°C (68°F) 120 to 280 kohms C29-3 (KNK4) - C29-4 (EKN4) 20°C (68°F) 120 to 280 kohms TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to ECM) NG --> See step 3 OK: Go to next step
  2. INSPECT ECM Disconnect the Ch1 connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C29-11 (KNK1) - C29-12 (EKNK) Engine switch on (IG) 4.5 to 5.5 V C29-5 (KNK2) - C29-6 (EKN2) Engine switch on (IG) 4.5 to 5.5 V C29-9 (KNK3) - C29-10 (EKN3) Engine switch on (IG) 4.5 to 5.5 V C29-3 (KNK4) - C29-4 (EKN4) Engine switch on (IG) 4.5 to 5.5 V TEXT IN ILLUSTRATION *a Component with harness connected (ECM) NG --> See step 4 OK --> See step 5
  3. CHECK HARNESS AND CONNECTOR (ECM - KNOCK SENSOR) Disconnect the ECM connector. Disconnect the knock sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition h1-2 - C29-11 (KNK1) Always Below 1 ohms h1-1 - C29-12 (EKNK) Always Below 1 ohms h2-2 - C29-5 (KNK2) Always Below 1 ohms h2-1 - C29-6 (EKN2) Always Below 1 ohms h3-2 - C29-9 (KNK3) Always Below 1 ohms h3-1 - C29-10 (EKN3) Always Below 1 ohms h4-2 - C29-3 (KNK4) Always Below 1 ohms h4-1 - C29-4 (EKN4) Always Below 1 ohms h1-2 or C29-11 (KNK1) - Body ground Always 10 kohms or higher h1-1 or C29-12 (EKNK) - Body ground Always 10 kohms or higher h2-2 or C29-5 (KNK2) - Body ground Always 10 kohms or higher h2-1 or C29-6 (EKN2) - Body ground Always 10 kohms or higher h3-2 or C29-9 (KNK3) - Body ground Always 10 kohms or higher h3-1 or C29-10 (EKN3) - Body ground Always 10 kohms or higher h4-2 or C29-3 (KNK4) - Body ground Always 10 kohms or higher h4-1 or C29-4 (EKN4) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 6
  4. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
  5. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)
  6. REPLACE KNOCK SENSOR. Refer to «REMOVAL»(ref-524262-S22270313772013012800000)

HINT

  1. If no problem is found by this diagnostic troubleshooting procedure, check for problems by referring to the engine mechanical section.
  2. The engine speed can be checked by using the Techstream. To perform the check, follow the procedures below: Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Engine Speed. The engine speed may be indicated as zero despite the engine running normally. This is caused by a lack of NE signals from the crankshaft position sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed if the crankshaft position sensor output voltage is insufficient.
  3. Read freeze frame data using the Techstream. Freeze frame data records the engine conditions when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 237

Scheme 237: PROCEDURE
Scheme 237: PROCEDURE

Scheme 238

Scheme 238
Scheme 238
  1. READ VALUE USING TECHSTREAM (ENGINE SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Engine Speed. Start the engine. Read the values displayed on the Techstream while the engine is running. Standard Correct values are displayed. HINT: To check the engine speed change, display the graph on the Techstream. If the engine does not start, check the engine speed while cranking. If the engine speed indicated on the Techstream remains zero (0), there may be an open or short in the Crankshaft Position sensor circuit. NG --> See step 2 OK --> See step 12
  2. INSPECT CRANKSHAFT POSITION SENSOR (SENSOR POWER SOURCE) Disconnect the crankshaft position sensor connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C42-3 (VC) - Body ground Engine switch on (IG) 4.5 to 5.0 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Crankshaft Position Sensor) NG --> See step 8 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Disconnect the crankshaft position sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C42-1 (NE+) - C28-6 (NE+) Always Below 1 ohms C42-2 (NE-) - C28-5 (NE-) Always Below 1 ohms C42-1 (NE+) or C28-6 (NE+) - Body ground Always 10 kohms or higher C42-2 (NE-) or C28-5 (NE-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR) Check the crankshaft position sensor installation. OK Sensor is installed correctly. NG --> See step 10 OK: Go to next step
  5. INSPECT CRANKSHAFT ANGLE SENSOR ROTOR (TEETH OF SENSOR ROTOR) Check the teeth of the sensor rotor. OK Sensor rotor does not have any cracks or deformation. NG --> See step 9 OK: Go to next step
  6. REPLACE CRANKSHAFT POSITION SENSOR Replace the crankshaft position sensor. Refer to «REMOVAL»(ref-524262-S07027689612013012800000) . NEXT: Go to next step
  7. CHECK WHETHER DTC OUTPUT RECURS (DTC P0335, P0337, P0338 AND/OR P0339) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Start the engine. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. RESULT Result Proceed to No DTC is output A P0335, P0337, P0338 or P0339 is output B HINT: If the engine does not start, replace the ECM. B --> See step 13 A --> END
  8. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Disconnect the crankshaft position sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C42-3 (VC) - C28-16 (VCV2) Always Below 1 ohms C42-3 (VC) or C28-16 (VCV2) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
  9. REPLACE CRANKSHAFT ANGLE SENSOR ROTOR. Refer to «REMOVAL»(ref-524246-S01931215272013012800000)
  10. SECURELY REINSTALL SENSOR. Refer to «INSTALLATION»(ref-524262-S41379947072013012800000)
  11. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
  12. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)
  13. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

HINT

  1. Read freeze frame data using the Techstream. Freeze frame data records the engine conditions when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
  2. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  3. Bank 2 refers to the bank that does not include the No. 1 cylinder.

Scheme 239

Scheme 239: PROCEDURE
Scheme 239: PROCEDURE

Scheme 240

Scheme 240
Scheme 240
  1. CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE) Disconnect the VVT sensor connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition 3 (VC) - Body ground Engine switch on (IG) 4.5 to 5.0 V TEXT IN ILLUSTRATION *A Bank 1 *B Bank 2 *a Front view of wire harness connector (to VVT Sensor) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (VVT SENSOR FOR INTAKE CAMSHAFT - ECM) Disconnect the VVT sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C15-1 (VVL+) - C28-7 (VV1+) Always Below 1 ohms C15-2 (VVL-) - C28-8 (VV1-) Always Below 1 ohms C14-1 (VVR+) - C28-12 (VV2+) Always Below 1 ohms C14-2 (VVR-) - C28-11 (VV2-) Always Below 1 ohms C15-1 (VVL+) or C28-7 (VV1+) - Body ground Always 10 kohms or higher C15-2 (VVL-) or C28-8 (VV1-) - Body ground Always 10 kohms or higher C14-1 (VVR+) or C28-12 (VV2+) - Body ground Always 10 kohms or higher C14-2 (VVR-) or C28-11 (VV2-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. CHECK SENSOR INSTALLATION (VVT SENSOR FOR INTAKE CAMSHAFT) Check the VVT sensor installation. OK Sensor is installed correctly. NG --> See step 8 OK: Go to next step
  4. INSPECT INTAKE CAMSHAFT (TEETH) Check the teeth of the camshaft. OK Teeth do not have any cracks or deformation. NG --> See step 7 OK: Go to next step
  5. REPLACE VVT SENSOR Replace the VVT sensor. Refer to «REMOVAL»(ref-524262-S27580867712013012800000) . NEXT: Go to next step
  6. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Start the engine and idle it for 10 seconds or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read DTCs. RESULT Result Proceed to No DTC is output A P0340, P0342, P0343, P0345, P0347 or P0348 is output B HINT: If the engine does not start, replace the ECM. B --> See step 9 A --> END
  7. REPLACE INTAKE CAMSHAFT. Refer to «REMOVAL»(ref-524246-S42817166632013012800000)
  8. SECURELY REINSTALL SENSOR. Refer to «INSTALLATION»(ref-524262-S17322198632013012800000)
  9. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

HINT

Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 241

Scheme 241: PROCEDURE
Scheme 241: PROCEDURE
  1. INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE) Disconnect the ignition coil connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C1-4 (GND) - Body ground Always Below 1 ohms C2-4 (GND) - Body ground Always Below 1 ohms C3-4 (GND) - Body ground Always Below 1 ohms C4-4 (GND) - Body ground Always Below 1 ohms C5-4 (GND) - Body ground Always Below 1 ohms C6-4 (GND) - Body ground Always Below 1 ohms C39-4 (GND) - Body ground Always Below 1 ohms C40-4 (GND) - Body ground Always Below 1 ohms Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C1-1 (+B) - C1-4 (GND) Engine switch on (IG) 11 to 14 V C2-1 (+B) - C2-4 (GND) Engine switch on (IG) 11 to 14 V C3-1 (+B) - C3-4 (GND) Engine switch on (IG) 11 to 14 V C4-1 (+B) - C4-4 (GND) Engine switch on (IG) 11 to 14 V C5-1 (+B) - C5-4 (GND) Engine switch on (IG) 11 to 14 V C6-1 (+B) - C6-4 (GND) Engine switch on (IG) 11 to 14 V C39-1 (+B) - C39-4 (GND) Engine switch on (IG) 11 to 14 V C40-1 (+B) - C40-4 (GND) Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Ignition Coil Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) Disconnect the ignition coil connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C1-2 (IGF1) - C30-6 (IGF1) Always Below 1 ohms C2-2 (IGF2) - C31-5 (IGF2) Always Below 1 ohms C3-2 (IGF2) - C31-5 (IGF2) Always Below 1 ohms C4-2 (IGF1) - C30-6 (IGF1) Always Below 1 ohms C5-2 (IGF2) - C31-5 (IGF2) Always Below 1 ohms C6-2 (IGF1) - C30-6 (IGF1) Always Below 1 ohms C39-2 (IGF1) - C30-6 (IGF1) Always Below 1 ohms C40-2 (IGF2) - C31-5 (IGF2) Always Below 1 ohms C1-3 (IGT1) - C30-24 (IGT1) Always Below 1 ohms C2-3 (IGT2) - C29-27 (IGT2) Always Below 1 ohms C3-3 (IGT3) - C30-27 (IGT3) Always Below 1 ohms C4-3 (IGT4) - C29-26 (IGT4) Always Below 1 ohms C5-3 (IGT5) - C29-25 (IGT5) Always Below 1 ohms C6-3 (IGT6) - C30-28 (IGT6) Always Below 1 ohms C39-3 (IGT7) - C30-26 (IGT7) Always Below 1 ohms C40-3 (IGT8) - C30-25 (IGT8) Always Below 1 ohms C1-2 (IGF1) or C30-6 (IGF1) - Body ground Always 10 kohms or higher C2-2 (IGF2) or C31-5 (IGF2) - Body ground Always 10 kohms or higher C3-2 (IGF2) or C31-5 (IGF2) - Body ground Always 10 kohms or higher C4-2 (IGF1) or C30-6 (IGF1) - Body ground Always 10 kohms or higher C5-2 (IGF2) or C31-5 (IGF2) - Body ground Always 10 kohms or higher C6-2 (IGF1) or C30-6 (IGF1) - Body ground Always 10 kohms or higher C39-2 (IGF1) or C30-6 (IGF1) - Body ground Always 10 kohms or higher C40-2 (IGF2) or C31-5 (IGF2) - Body ground Always 10 kohms or higher C1-3 (IGT1) or C30-24 (IGT1) - Body ground Always 10 kohms or higher C2-3 (IGT2) or C29-27 (IGT2) - Body ground Always 10 kohms or higher C3-3 (IGT3) or C30-27 (IGT3) - Body ground Always 10 kohms or higher C4-3 (IGT4) or C29-26 (IGT4) - Body ground Always 10 kohms or higher C5-3 (IGT5) or C29-25 (IGT5) - Body ground Always 10 kohms or higher C6-3 (IGT6) or C30-28 (IGT6) - Body ground Always 10 kohms or higher C39-3 (IGT7) or C30-26 (IGT7) - Body ground Always 10 kohms or higher C40-3 (IGT8) or C30-25 (IGT8) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353, P0354, P0355, P0356, P0357 OR P0358) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Shuffle the arrangement of the ignition coil assembles (among the No. 1 to No. 8 cylinders). NOTE: Do not shuffle the connectors. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Check the DTCs output on the Techstream. RESULT Result Proceed to Same DTC is output A Different ignition coil DTC is output B B --> See step 4 A --> See step 5
  4. REPLACE IGNITION COIL ASSEMBLY. Refer to «REMOVAL»(ref-524262-S23907377132013012800000)
  5. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

HINT

  1. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
  2. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
  3. Bank 2 refers to the bank that does not include the No. 1 cylinder.

Scheme 242

Scheme 242: PROCEDURE
Scheme 242: PROCEDURE

Scheme 243

Scheme 243
Scheme 243
  1. CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE) Disconnect the VVT sensor connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition 3 (VC2) - Body ground Engine switch on (IG) 4.5 to 5.0 V TEXT IN ILLUSTRATION *A Bank 1 *B Bank 2 *a Front view of wire harness connector (to VVT Sensor) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (VVT SENSOR - ECM) Disconnect the VVT sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C17-1 (EX+) - C28-13 (EV1+) Always Below 1 ohms C17-2 (EX-) - C28-14 (EV1-) Always Below 1 ohms C16-1 (EX+) - C28-18 (EV2+) Always Below 1 ohms C16-2 (EX-) - C28-17 (EV2-) Always Below 1 ohms C17-1 (EX+) or C28-13 (EV1+) - Body ground Always 10 kohms or higher C17-2 (EX-) or C28-14 (EV1-) - Body ground Always 10 kohms or higher C16-1 (EX+) or C28-18 (EV2+) - Body ground Always 10 kohms or higher C16-2 (EX-) or C28-17 (EV2-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. CHECK SENSOR INSTALLATION (VVT SENSOR FOR EXHAUST CAMSHAFT) Check the VVT sensor installation. OK Sensor is installed correctly. NG --> See step 7 OK: Go to next step
  4. INSPECT EXHAUST CAMSHAFT Check the teeth of the camshaft. OK Teeth do not have any cracks or deformation. NG --> See step 8 OK: Go to next step
  5. REPLACE VVT SENSOR Replace the VVT sensor. Refer to «REMOVAL»(ref-524262-S27580867712013012800000) . NEXT: Go to next step
  6. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Start the engine and idle it for 10 seconds or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read DTCs. RESULT Display (DTC Output) Proceed to No DTC is output A P0365, P0367, P0368, P0390, P0392 or P0393 is output B HINT: If the engine does not start, replace the ECM. B --> See step 9 A --> END
  7. SECURELY REINSTALL SENSOR. Refer to «INSTALLATION»(ref-524262-S17322198632013012800000)
  8. REPLACE EXHAUST CAMSHAFT. Refer to «REMOVAL»(ref-524246-S42817166632013012800000)
  9. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

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