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Engine Control System Sfi System (Diagnostic Codes (P0010 - P0128)): Diagnosis Toyota Avalon XX30 рестайлинг 2

Testing & Diagnostics 17 illustrations ~7311 words

INSPECTION PROCEDURE

HINT

  1. If DTC P0010 is displayed, check the intake camshaft circuit for the right bank VVT system.
  2. Bank 1 refers to the bank that includes cylinder No. 1.
  3. If DTC P0020 is displayed, check the intake camshaft circuit for the left bank VVT system.
  4. Bank 2 refers to the bank that does not include cylinder No. 1.
  5. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

Scheme 193

Scheme 193: PROCEDURE
Scheme 193: PROCEDURE

Scheme 194

Scheme 194
Scheme 194
  1. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT SYSTEM (BANK 1 OR BANK 2)) Connect Techstream to the DLC3. Start the engine and turn the Techstream on. On the Techstream, enter the following menus: Powertrain / Engine / Active Test / Control the VVT System (Bank1) or Control the VVT System (Bank2). Check the engine speed while operating the Oil Control Valve (OCV) using the Techstream. OK Techstream Operation Specified Condition OFF Normal engine speed ON Engine idles roughly or stalls (soon after OCV switched from OFF to ON) OK --> See step 5 NG: Go to next step
  2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT) Remove the OCV for intake camshaft. Measure the resistance between the terminals of the OCV. Standard resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 6.9 to 7.9 ohms Connect the positive (+) battery terminal to terminal 1 and connect the negative (-) battery terminal to terminal 2. Check the valve operation. OK Valve moves quickly. Reinstall the OCV. NG --> REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT) OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (OCV - ECM) Disconnect the OCV for intake camshaft connector. Disconnect the ECM connector. Measure the resistance between the terminals. Standard resistance (Check for open) Tester Connection Condition Specified Condition B50-58 (OC1+) - B44-1 Always Below 1 ohms B50-57 (OC1-) - B44-2 Always Below 1 ohms B50-52 (OC2+) - B19-1 Always Below 1 ohms B50-51 (OC2-) - B19-2 Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B50-58 (OC1+) or B44-1 - Body ground Always 10 kohms or higher B50-57 (OC1-) or B44-2 - Body ground Always 10 kohms or higher B50-52 (OC2+) or B19-1 - Body ground Always 10 kohms or higher B50-51 (OC2-) or B19-2 - Body ground Always 10 kohms or higher Reconnect the OCV connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (OCV - ECM) OK --> See step 4
  4. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
  5. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)

HINT

  1. If DTC P0010 is displayed, check the intake camshaft circuit for the right bank VVT system.
  2. Bank 1 refers to the bank that includes cylinder No. 1.
  3. If DTC P0020 is displayed, check the intake camshaft circuit for the left bank VVT system.
  4. Bank 2 refers to the bank that does not include cylinder No. 1.
  5. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

HINT

Abnormal bankAdvanced timing over (Valve timing is out of specified range)Retarded timing over (Valve timing is out of specified range)
Bank 1P0011P0012
Bank 2P0021P0022
  1. If DTC P0011 or P0012 is displayed, check the intake camshaft circuit for the right bank VVT system (bank 1).
  2. Bank 1 refers to the bank that includes cylinder No. 1.
  3. If DTC P0021 or P0022 is displayed, check the intake camshaft circuit for the left bank VVT system (bank 2).
  4. Bank 2 refers to the bank that does not include cylinder No. 1.
  5. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

Scheme 195

Scheme 195: PROCEDURE
Scheme 195: PROCEDURE

Scheme 196

Scheme 196
Scheme 196
  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011, P0012, P0021 OR P0022) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0011, P0012, P0021 or P0022 is output A DTC 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 8 A: Go to next step
  2. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT SYSTEM (BANK 1 OR BANK 2)) Connect Techstream to the DLC3. Start the engine and turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT System (Bank1) or Control the VVT System (Bank2). Check the engine speed while operating the Oil Control Valve (OCV) using the Techstream. OK Techstream Operation Specified Condition OFF Normal engine speed ON Engine idles roughly or stalls (soon after OCV switched from OFF to ON) NG --> See step 4 OK: Go to next step
  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P0011, P0012, P0021 OR P0022) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs using the Techstream. OK No pending DTC output. HINT: DTC P0011, P0012, P0021 or P0022 is output when foreign objects in engine oil are caught in some parts of the system. These codes will stay output 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 4 OK --> See step 11
  4. CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TEETH ON TIMING CHAIN) Remove the cylinder head cover sub-assemblies RH and LH. Turn the crankshaft to align the timing marks of the crankshaft. Align the notch of the crankshaft pulley to the "0" position. Check if the timing marks of the camshaft pulley and camshaft bearing cap align. Turn the crankshaft clockwise by 360° if the timing marks do not align. Check if they align once again. OK The timing marks of the camshaft pulley and the camshaft bearing cap align when the notch of the crankshaft pulley is in the "0" position. Reinstall the cylinder head cover sub-assemblies RH and LH. NG --> ADJUST VALVE TIMING OK: Go to next step
  5. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT) Remove the OCV for intake camshaft. Measure the resistance between the terminals of the OCV. Standard resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 6.9 to 7.9 ohms Connect the positive (+) battery terminal to terminal 1 and connect the negative (-) battery terminal to terminal 2. Check the valve operation. OK Valve moves quickly. Reinstall the OCV. NG --> REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT) OK: Go to next step
  6. INSPECT OIL CONTROL VALVE FILTER AND OIL PIPE Remove the No. 1 oil pipe or No. 2 oil pipe. Remove the oil control valve filter RH or oil control valve filter LH. Check that the oil control valve filter and oil pipe are not clogged. OK The oil control valve filter and oil pipe are not clogged. Reinstall the oil control valve filter RH or oil control valve filter LH. Reinstall the No. 1 oil pipe or No. 2 oil pipe. NG --> REPLACE OIL CONTROL VALVE FILTER OR OIL PIPE OK: Go to next step
  7. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY Replace the camshaft timing gear assembly (bank 1 or bank 2). Refer to «DISASSEMBLY»(ref-428873-S09779335952011101200000) . NEXT --> See step 9
  8. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-428881-S09869597972011101200000)
  9. CHECK WHETHER DTC OUTPUT RECURS Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs using the Techstream. OK No pending DTC output. OK --> END NG --> See step 10
  10. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
  11. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)

HINT

Abnormal bankAdvanced timing over (Valve timing is out of specified range)Retarded timing over (Valve timing is out of specified range)
Bank 1P0011P0012
Bank 2P0021P0022
  1. If DTC P0011 or P0012 is displayed, check the intake camshaft circuit for the right bank VVT system (bank 1).
  2. Bank 1 refers to the bank that includes cylinder No. 1.
  3. If DTC P0021 or P0022 is displayed, check the intake camshaft circuit for the left bank VVT system (bank 2).
  4. Bank 2 refers to the bank that does not include cylinder No. 1.
  5. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

HINT

  1. If DTC P0013 is displayed, check the exhaust camshaft circuit for the bank 1 VVT system.
  2. Bank 1 refers to the bank that includes cylinder No. 1.
  3. If DTC P0023 is displayed, check the exhaust camshaft circuit for the bank 2 VVT system.
  4. Bank 2 refers to the bank that does not include cylinder No. 1.
  5. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

HINT

  1. If DTC P0013 is displayed, check the exhaust camshaft circuit for the bank 1 VVT system.
  2. Bank 1 refers to the bank that includes cylinder No. 1.
  3. If DTC P0023 is displayed, check the exhaust camshaft circuit for the bank 2 VVT system.
  4. Bank 2 refers to the bank that does not include cylinder No. 1.
  5. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

HINT

Abnormal bankAdvanced timing over (Valve timing is out of specified range)Retarded timing over (Valve timing is out of specified range)
Bank 1P0014P0015
Bank 2P0024P0025
  1. If DTC P0014 or P0015 is displayed, check the exhaust camshaft circuit for the bank 1 VVT system.
  2. Bank 1 refers to the bank that includes cylinder No. 1.
  3. If DTC P0024 or P0025 is displayed, check the exhaust camshaft circuit for the bank 2 VVT system.
  4. Bank 2 refers to the bank that does not include cylinder No. 1.
  5. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

HINT

Abnormal bankAdvanced timing over (Valve timing is out of specified range)Retarded timing over (Valve timing is out of specified range)
Bank 1P0014P0015
Bank 2P0024P0025
  1. If DTC P0014 or P0015 is displayed, check the exhaust camshaft circuit for the bank 1 VVT system.
  2. Bank 1 refers to the bank that includes cylinder No. 1.
  3. If DTC P0024 or P0025 is displayed, check the exhaust camshaft circuit for the bank 2 VVT system.
  4. Bank 2 refers to the bank that does not include cylinder No. 1.
  5. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

Scheme 197

Scheme 197: PROCEDURE
Scheme 197: PROCEDURE

Scheme 198

Scheme 198
Scheme 198

Scheme 199

Scheme 199
Scheme 199

Scheme 200

Scheme 200
Scheme 200
  1. INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) Disconnect the A/F sensor connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Bank 1 sensor 1) Tester Connection Condition Specified Condition 1 (HA1A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA1A) - 4 (A1A-) Always 10 kohms or higher Standard resistance (Bank 2 sensor 1) Tester Connection Condition Specified Condition 1 (HA2A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA2A) - 4 (A2A-) Always 10 kohms or higher Reconnect the A/F sensor connector. NG --> See step 7 OK: Go to next step
  2. CHECK TERMINAL VOLTAGE (+B OF A/F SENSOR) Disconnect the A/F sensor connector. Turn the ignition switch to ON. Measure the voltage between the terminal of the A/F sensor connector and body ground. Standard voltage Tester Connection Switch Condition Specified Condition B32-2 (+B) - Body ground Ignition switch ON 11 to 14 V B26-2 (+B) - Body ground Ignition switch ON 11 to 14 V Reconnect the A/F sensor connector. OK --> See step 5 NG: Go to next step
  3. INSPECT FUSE (A/F FUSE) Remove the A/F fuse from the engine room R/B. Measure the A/F fuse resistance. Standard resistance Below 1 ohms Reinstall the A/F fuse. NG --> REPLACE A/F FUSE OK: Go to next step
  4. INSPECT ENGINE ROOM JUNCTION BLOCK (A/F RELAY) Remove the engine room junction block from the engine room R/B. Measure the A/F relay resistance. Standard resistance Tester Connection Condition Specified Condition 1F-1 - 1C-6 Always 10 kohms or higher 1F-1 - 1C-6 Always Below 1 ohms (Apply battery voltage between terminals 1D-5 and 1H-2) Reinstall the engine room junction block. NG --> REPLACE ENGINE ROOM JUNCTION BLOCK OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (A/F RELAY - A/F SENSOR)
  5. CHECK HARNESS AND CONNECTOR (A/F SENSOR - ECM) Disconnect the A/F sensor connector. Disconnect the ECM connector. Measure the resistance between the terminals. Standard resistance (Check for open) Tester Connection Condition Specified Condition B50-86 (HA1A) - B32-1 (HA1A) Always Below 1 ohms B50-109 (HA2A) - B26-1 (HA2A) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B50-86 (HA1A) or B32-1 (HA1A) - Body ground Always 10 kohms or higher B50-109 (HA2A) or B26-1 (HA2A) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the A/F sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (A/F SENSOR - ECM) OK: Go to next step
  6. CHECK WHETHER DTC OUTPUT RECURS Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Select the following menu items: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A DTC P0031, P0032, P0051 and/or P0052 is output B B --> See step 8 A --> See step 9
  7. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-428893-S38119987512011101200000)
  8. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
  9. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

Scheme 201

Scheme 201: PROCEDURE
Scheme 201: PROCEDURE

Scheme 202

Scheme 202
Scheme 202

Scheme 203

Scheme 203
Scheme 203
  1. INSPECT HEATED OXYGEN SENSOR (HEATER RESISTANCE) Disconnect the heated oxygen sensor connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Bank 1 sensor 2) Tester Connection Condition Specified Condition 1 (HT1B) - 2 (+B) 20°C (68°F) 11 to 16 ohms 1 (HT1B) - 4 (E) Always 10 kohms or higher Standard resistance (Bank 2 sensor 2) Tester Connection Condition Specified Condition 1 (HT2B) - 2 (+B) 20°C (68°F) 11 to 16 ohms 1 (HT2B) - 4 (E) Always 10 kohms or higher Reconnect the heated oxygen sensor connector. NG --> See step 6 OK: Go to next step
  2. CHECK TERMINAL VOLTAGE (+B OF HO2 SENSOR) Disconnect the heated oxygen sensor connector. Turn the ignition switch to ON. Measure the voltage between the terminals. Standard voltage Tester Connection Switch Condition Specified Condition B3-2 (+B) - Body ground Ignition switch ON 11 to 14 V B2-2 (+B) - Body ground Ignition switch ON 11 to 14 V Reconnect the heated oxygen sensor connector. OK --> See step 4 NG: Go to next step
  3. INSPECT FUSE (EFI NO. 2) Remove the EFI No. 2 fuse from the engine room R/B. Measure the EFI No. 2 fuse resistance. Standard resistance Below 1 ohms Reinstall the EFI No. 2 fuse. NG --> REPLACE FUSE (EFI NO. 2) OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI RELAY - HO2 SENSOR)
  4. 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 (Check for open) Tester Connection Condition Specified Condition B3-1 (HT1B) - B50-48 (HT1B) Always Below 1 ohms B3-3 (OX1B) - B50-88 (OX1B) Always Below 1 ohms B3-4 (E) - B50-65 (EX1B) Always Below 1 ohms B2-1 (HT2B) - B50-47 (HT2B) Always Below 1 ohms B2-3 (OX2B) - B50-87 (OX2B) Always Below 1 ohms B2-4 (E) - B50-64 (EX2B) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B3-1 (HT1B) or B50-48 (HT1B) - Body ground Always 10 kohms or higher B3-3 (OX1B) or B50-88 (OX1B) - Body ground Always 10 kohms or higher B3-4 (E) or B50-65 (EX1B) - Body ground Always 10 kohms or higher B2-1 (HT2B) or B50-47 (HT2B) - Body ground Always 10 kohms or higher B2-3 (OX2B) or B50-87 (OX2B) - Body ground Always 10 kohms or higher B2-4 (E) or B50-64 (EX2B) - Body ground Always 10 kohms or higher Reconnect the heated oxygen sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. CHECK WHETHER DTC OUTPUT RECURS Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Select the following menu items: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to DTC is not output A DTC P0037, P0038, P0057, P0058, P0141 and/or P0161 is output B B --> See step 7 A --> See step 8
  6. REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-428893-S20676909622011101200000)
  7. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
  8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

Scheme 204

Scheme 204: PROCEDURE
Scheme 204: PROCEDURE
  1. READ DTC OUTPUT Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Select the following menu items: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0102 is output A DTC P0103 is output B B --> See step 6 A: Go to next step
  2. INSPECT MASS AIR FLOW METER (POWER SOURCE VOLTAGE) Disconnect the mass air flow (MAF) meter connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard voltage Tester Connection Switch Condition Specified Condition B10-3 (+B) - Body ground Ignition switch ON 11 to 14 V Reconnect the MAF meter connector. NG --> See step 5 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the MAF meter connector. Disconnect the ECM connector. Measure the resistance between the terminals. Standard resistance (Check for open) Tester Connection Condition Specified Condition B50-72 (VG) - B10-5 (VG) Always Below 1 ohms B50-73 (E2G) - B10-4 (E2G) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B50-72 (VG) or B10-5 (VG) - Body ground Always 10 kohms or higher Reconnect the MAF meter connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (MASS AIR FLOW METER - ECM) OK: Go to next step
  4. INSPECT MASS AIR FLOW METER Perform On-vehicle Inspection. Refer to «ON-VEHICLE INSPECTION»(ref-428889-S18252336832011101200000) . Inspect the function of the mass air flow meter. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / MAF. Start the engine. Check that the reading of the mass air flow meter changes when the engine is raced. OK The reading changes. NG --> REPLACE MASS AIR FLOW METER OK --> See step 8
  5. INSPECT FUSE (EFI NO. 2) Remove the EFI No. 2 fuse from the engine room R/B. Measure the EFI No. 2 fuse resistance. Standard resistance Below 1 ohms Reinstall the EFI No. 2 fuse. NG --> REPLACE FUSE (EFI NO. 2 FUSE) OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI RELAY - MASS AIR FLOW METER)
  6. CHECK HARNESS AND CONNECTOR (SENSOR GROUND) Disconnect the MAF meter connector. Measure the resistance between the terminals. Standard resistance Tester Connection Condition Specified Condition B10-4 (E2G) - Body ground Always Below 1 ohms Reconnect the MAF meter connector. OK --> REPLACE MASS AIR FLOW METER NG: Go to next step
  7. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the MAF meter connector. Disconnect the ECM connector. Measure the resistance between the terminals. Standard resistance (Check for open) Tester Connection Condition Specified Condition B50-73 (E2G) - B10-4 (E2G) Always Below 1 ohms Reconnect the MAF meter connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (MASS AIR FLOW METER - ECM) OK --> See step 8
  8. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

Scheme 205

Scheme 205: PROCEDURE
Scheme 205: PROCEDURE

Scheme 206

Scheme 206
Scheme 206
  1. READ VALUE USING TECHSTREAM (INTAKE AIR TEMPERATURE SENSOR) Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / Intake Air. Read the value displayed on the Techstream. Standard Same as actual Intake Air Temperature (IAT). Result Result Proceed to -40°C (-40°F) A 140°C (284°F) B Same as actual IAT C HINT: If there is an open circuit, Techstream indicates -40°C (-40°F). If there is a short circuit, Techstream indicates 140°C (284°F). B --> See step 5 C --> See step 7 A: Go to next step
  2. CHECK MASS AIR FLOW METER (CHECK FOR OPEN IN WIRE HARNESS) Confirm good connection of the Mass Air Flow (MAF) meter. Disconnect the MAF meter connector. Connect terminals THA and E2 of the MAF meter wire harness side connector. Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / Intake Air. Read the value displayed on the Techstream. Standard 140°C (284°F). Reconnect the MAF meter connector. OK --> REPLACE MASS AIR FLOW METER NG: Go to next step
  3. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the MAF meter connector. Disconnect the ECM connector. Measure the resistance between the terminals. Standard resistance (Check for open) Tester Connection Condition Specified Condition B50-71 (THA) - B10-1 (THA) Always Below 1 ohms B50-74 (ETHA) - B10-2 (E2) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B50-71 (THA) or B10-1 (THA) - Body ground Always 10 kohms or higher B50-74 (ETHA) or B10-2 (E2) - Body ground Always 10 kohms or higher Reconnect the MAF meter connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
  4. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
  5. CHECK MASS AIR FLOW METER (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the MAF meter connector. Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / Intake Air. Read the value displayed on the Techstream. Standard -40°C (-40°F). Reconnect the MAF meter connector. OK --> REPLACE MASS AIR FLOW METER NG: Go to next step
  6. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER- ECM) Disconnect the MAF meter connector. Disconnect the ECM connector. Measure the resistance between the terminals. Standard resistance Tester Connection Condition Specified Condition B50-71 (THA) or B10-1 (THA) - Body ground Always 10 kohms or higher Reconnect the MAF meter connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
  7. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

Scheme 207

Scheme 207: PROCEDURE
Scheme 207: PROCEDURE

Scheme 208

Scheme 208
Scheme 208
  1. READ VALUE USING TECHSTREAM (COOLANT TEMP) Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / Coolant Temp. Read the value displayed on the Techstream. Standard Between 80°C and 97°C (176°F and 207°F) with warm engine. Result Result Proceed to -40°C (-40°F) A 140°C (284°F) B Between 80°C and 97°C (176°F and 207°F) C HINT: If there is an open circuit, Techstream indicates -40°C (-40°F). If there is a short circuit, Techstream indicates 140°C (284°F). B --> See step 5 C --> See step 8 A: Go to next step
  2. CHECK ENGINE COOLANT TEMPERATURE SENSOR (CHECK FOR OPEN IN WIRE HARNESS) Confirm good connection of the sensor. Disconnect the engine coolant temperature (ECT) sensor connector. Connect terminals 1 and 2 of the ECT sensor connector on the wire harness side. Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / Coolant Temp. Read the value displayed on the Techstream. Standard 140°C (284°F). Reconnect the ECT sensor connector. OK --> REPLACE ENGINE COOLANT TEMPERATURE SENSOR NG: Go to next step
  3. CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) Disconnect the ECT sensor connector. Disconnect the ECM connector. Measure the resistance between the terminals. Standard resistance Tester Connection Condition Specified Condition B50-79 (THW) - B9-2 Always Below 1 ohms B50-78 (ETHW) - B9-1 Always Below 1 ohms Reconnect the ECM connector. Reconnect the ECT sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
  4. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
  5. CHECK ENGINE COOLANT TEMPERATURE SENSOR (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the ECT sensor connector. Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / Coolant Temp. Read the value displayed on the Techstream. Standard -40°C (-40°F) Reconnect the ECT sensor connector. OK --> REPLACE ENGINE COOLANT TEMPERATURE SENSOR NG: Go to next step
  6. CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) Disconnect the ECT sensor connector. Disconnect the ECM connector. Measure the resistance between the terminals. Standard resistance Tester Connection Condition Specified Condition B50-79 (THW) or B9-2 - Body ground Always 10 kohms or higher Reconnect the ECT sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
  7. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
  8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

HINT

  1. If any of DTCs P0115, P0117, P0118 and P0125 are set simultaneously with DTC P0116, the ECT sensor may have an open or a short circuit. Troubleshoot those DTCs first.
  2. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

HINT

  1. If any of DTCs P0115, P0117, P0118 and P0125 are set simultaneously with DTC P0116, the ECT sensor may have an open or a short circuit. Troubleshoot those DTCs first.
  2. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

HINT

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 209

Scheme 209: PROCEDURE
Scheme 209: PROCEDURE
  1. READ VALUE USING TECHSTREAM (THROTTLE POSITION SENSOR) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Position No. 1 and Throttle Position No. 2. Read the values displayed on the Techstream. RESULT When Accelerator Pedal Released When Accelerator Pedal Depressed Trouble Area Proceed to Throttle Position No. 1 (VTA1) Throttle Position No. 2 (VTA2) Throttle Position No. 1 (VTA1) Throttle Position No. 2 (VTA2) 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 0 to 0.2 V, or 4.5 to 5.0 V 2.1 V to 3.1 V (Fail-safe) 0 to 0.2 V, or 4.5 to 5.0 V 2.1 V to 3.1 V (Fail-safe) VTA1 circuit open or ground short 0.6 V to 1.4 V (Fail-safe) 0 to 0.2 V, or 4.5 to 5.0 V 0.6 V to 1.4 V (Fail-safe) 0 to 0.2 V, or 4.5 to 5.0 V VTA2 circuit open or ground short 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) Throttle position sensor circuit normal B HINT: DTC P0121 is stored when the voltages output from VTA1 and VTA2 are not consistent with the characteristics of the sensors. Therefore, check the Freeze Frame Data when this DTC is output. Use the following formula to confirm relative fluctuations in voltage. Features of 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 2 the "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 (Check for Open) Tester Connection Condition Specified Condition B30-5 (VC) - B50-96 (VCTA) Always Below 1 ohms B30-6 (VTA) - B50-98 (VTA1) Always Below 1 ohms B30-4 (VTA2) - B50-99 (VTA2) Always Below 1 ohms B30-3 (E2) - B50-97 (ETA) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B30-5 (VC) or B50-96 (VCTA) - Body ground Always 10 kohms or higher B30-6 (VTA) or B50-98 (VTA1) - Body ground Always 10 kohms or higher B30-4 (VTA2) or B50-99 (VTA2) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the throttle body connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE POSITION SENSOR - ECM) OK: Go to next step
  3. INSPECT ECM (VC VOLTAGE) Disconnect the throttle body connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition B30-5 (VC) - B30-3 (E2) Ignition switch ON 4.5 to 5.5 V Reconnect the throttle body connector. NG --> See step 6 OK: Go to next step
  4. REPLACE THROTTLE BODY Replace the throttle body. Refer to «REMOVAL»(ref-428889-S19516729622011101200000) . NEXT: Go to next step
  5. CHECK WHETHER DTC OUTPUT RECURS (THROTTLE POSITION SENSOR DTCS) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Start the engine. Allow the engine to idle for 15 seconds or more. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0120, P0121, P0122, P0123, P0220, P0222, P0223, and/or P2135 are output A DTC is not output B B --> END A --> See step 6
  6. REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)

HINT

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.

HINT

  1. If any of DTCs P0115, P0116, P0117 or P0118 are set simultaneously with DTC P0125, the Engine Coolant Temperature (ECT) sensor may have an open or a short circuit. Troubleshoot those DTCs first.
  2. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

HINT

  1. If any of DTCs P0115, P0116, P0117 or P0118 are set simultaneously with DTC P0125, the Engine Coolant Temperature (ECT) sensor may have an open or a short circuit. Troubleshoot those DTCs first.
  2. Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to «FREEZE FRAME DATA»(ref-428881-S16075287922011101200000) .

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

HINT

Read freeze frame data using 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 running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction. Refer to FREEZE FRAME DATA .

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