Engine Control (2GR-FE) (Diagnostic Codes (P0010-P0230): Diagnosis

INSPECTION PROCEDURE

HINT

If DTC P0010 is displayed, check the intake camshaft circuit for the right bank VVT system (bank 1).
Bank 1 refers to the bank that includes cylinder No. 1.
If DTC P0020 is displayed, check the intake camshaft circuit for the left bank VVT system (bank 2).
Bank 2 refers to the bank that does not include cylinder No. 1.
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 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.

Scheme 423

Scheme 423: PROCEDURE

Scheme 424

CHECK DTC (DTC P0010 OR P0020) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0010 is output A DTC P0020 is output B B --> See step 3 A: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT SYSTEM (BANK 1)) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT System (Bank 1). Check the engine speed while operating the camshaft timing oil control valve assembly using the Techstream. OK Techstream Operation Engine Condition OFF Normal engine speed ON Engine idles roughly or stalls (soon after camshaft timing oil control valve assembly switched from off to on) NG --> See step 4 OK --> See step 6
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT SYSTEM (BANK 2)) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT System (Bank 2). Check the engine speed while operating the camshaft timing oil control valve assembly using the Techstream. OK Techstream Operation Engine Condition OFF Normal engine speed ON Engine idles roughly or stalls (soon after camshaft timing oil control valve assembly switched from off to on) NG --> See step 4 OK --> See step 6
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT) Remove the camshaft timing oil control valve assembly for intake camshaft. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Conditions 1 - 2 20°C (68°F) 6.9 to 7.9 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for Intake Camshaft) 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. TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for Intake Camshaft) Reinstall the camshaft timing oil control valve assembly for intake camshaft. NG --> See step 7 OK: Go to next step
CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM) Disconnect the camshaft timing oil control valve assembly 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 B25-1 - B39-58 (OC1+) Always Below 1 ohms B25-2 - B39-57 (OC1-) Always Below 1 ohms B27-1 - B39-52 (OC2+) Always Below 1 ohms B27-2 - B39-51 (OC2-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B25-1 or B39-58 (OC1+) - Body ground Always 10 kohms or higher B25-2 or B39-57 (OC1-) - Body ground Always 10 kohms or higher B27-1 or B39-52 (OC2+) - Body ground Always 10 kohms or higher B27-2 or B39-51 (OC2-) - Body ground Always 10 kohms or higher Reconnect the camshaft timing oil control valve assembly connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM) OK --> See step 8
CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-394619-S06103702132011040800000)
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT). Refer to «REMOVAL»(ref-394792-S13745758862011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)

HINT

Abnormal Bank	Timing Over Advanced (Valve timing is out of specified range)	Timing Over Retarded (Valve timing is out of specified range)
Bank 1	P0011	P0012
Bank 2	P0021	P0022

If DTC P0011 or P0012 is displayed, check the intake camshaft circuit for the right bank VVT system (bank 1).
Bank 1 refers to the bank that includes cylinder No. 1.
If DTC P0021 or P0022 is displayed, check the intake camshaft circuit for the left bank VVT system (bank 2).
Bank 2 refers to the bank that does not include cylinder No. 1.
DTC P0011, P0012, P0021 or P0022 may be set 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.
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 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.

Scheme 425

Scheme 425: PROCEDURE

Scheme 426

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011, P0012, P0021 OR P0022) Connect the Techstream to the DLC3. Turn the ignition switch to ON. 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 9 A: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT SYSTEM (BANK 1 OR 2)) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT System (Bank 1) or Control the VVT System (Bank 2). Check the engine speed while operating the camshaft timing oil control valve assembly using the Techstream. OK Techstream Operation Engine Condition OFF Normal engine speed ON Engine idles roughly or stalls (soon after camshaft timing oil control valve assembly switched from off to on) NG --> See step 5 OK: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (DTC P0011, P0012, P0021 OR P0022) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-394619-S02527777542011040800000) . Start the engine and warm it up. 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. NG --> See step 5 OK --> See step 4
CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-394619-S06103702132011040800000)
CHECK VALVE TIMING (CHECK FOR LOOSE OR 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. TEXT IN ILLUSTRATION *1 Timing Mark Turn the crankshaft clockwise 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 --> See step 10 OK: Go to next step
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT) Remove the camshaft timing oil control valve assembly for intake camshaft. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 6.9 to 7.9 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for Intake Camshaft) 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. TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for intake Camshaft) Reinstall the camshaft timing oil control valve assembly for intake camshaft. NG --> See step 11 OK: Go to next step
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. TEXT IN ILLUSTRATION *1 Bank 1 (No. 2 Oil Pipe) *2 Bank 2 (No. 1 Oil Pipe) 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 --> See step 12 OK: Go to next step
REPLACE CAMSHAFT TIMING GEAR ASSEMBLY Replace the camshaft timing gear assembly (bank 1 or bank 2). Refer to «REMOVAL»(ref-394762-S15242098062011040800000) . NEXT: Go to next step
GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-394619-S37978292982011040800000)
ADJUST VALVE TIMING. Refer to «REASSEMBLY»(ref-394762-S00746161652011040800000)
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT). Refer to «REMOVAL»(ref-394792-S13745758862011040800000)
REPLACE OIL CONTROL VALVE FILTER OR OIL PIPE. Refer to «DISASSEMBLY»(ref-394762-S22148335812011040800000)
CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-394619-S02527777542011040800000) . Start the engine and warm it up. 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 remain stored even if the system returns to normal after a short time. These foreign objects may then be captured by the oil filter, thus eliminating the source of the problem. NG --> See step 14 OK --> END
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)

HINT

If DTC P0013 is displayed, check the exhaust camshaft circuit for the right bank VVT system (bank 1).
Bank 1 refers to the bank that includes cylinder No. 1.
If DTC P0023 is displayed, check the exhaust camshaft circuit for the left bank VVT system (bank 2).
Bank 2 refers to the bank that does not include cylinder No. 1.
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 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.

Scheme 427

CHECK DTC (DTC P0013 OR P0023) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0013 is output A DTC P0023 is output B B --> See step 3 A: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT EXHAUST LINEAR (BANK 1)) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT Exhaust Linear (Bank 1). Check the engine speed while operating the camshaft timing oil control valve assembly using the Techstream. OK Techstream Operation Engine Condition 0% (OFF) Normal engine speed 127% (ON) Engine idles roughly or stalls (soon after camshaft timing oil control valve assembly switched from off to on) NG --> See step 4 OK --> See step 6
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT EXHAUST LINEAR (BANK 2)) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT Exhaust Linear (Bank 2). Check the engine speed while operating the camshaft timing oil control valve assembly using the Techstream. OK Techstream Operation Engine Condition 0% (OFF) Normal engine speed 127% (ON) Engine idles roughly or stalls (soon after camshaft timing oil control valve assembly switched off to on) NG --> See step 4 OK --> See step 6
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT) Remove the camshaft timing oil control valve assembly for exhaust camshaft. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Conditions 1 - 2 20°C(68°F) 6.9 to 7.9 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for Exhaust Camshaft) 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. TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for Exhaust Camshaft) Reinstall the camshaft timing oil control valve assembly for exhaust camshaft. NG --> See step 7 OK: Go to next step
CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM) Disconnect the camshaft timing oil control valve assembly 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 B26-1 - B39-56 (OE1+) Always Below 1 ohms B26-2 - B39-55 (OE1-) Always Below 1 ohms B28-1 - B39-50 (OE2+) Always Below 1 ohms B28-2 - B39-49 (OE2-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B26-1 or B39-56 (OE1+) - Body ground Always 10 kohms or higher B26-2 or B39-55 (OE1-) - Body ground Always 10 kohms or higher B28-1 or B39-50 (OE2+) - Body ground Always 10 kohms or higher B28-2 or B39-49 (OE2-) - Body ground Always 10 kohms or higher Reconnect the camshaft timing oil control valve assembly connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM) OK --> See step 8
CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-394619-S06103702132011040800000)
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT). Refer to «REMOVAL»(ref-394792-S13745758862011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)

HINT

Abnormal Bank	Timing Over Advanced (Valve timing is out of specified range)	Timing Over Retarded (Valve timing is out of specified range)
Bank 1	P0014	P0015
Bank 2	P0024	P0025

If DTC P0014 or P0015 is displayed, check the exhaust camshaft circuit for the right bank VVT system (bank 1).
Bank 1 refers to the bank that includes cylinder No. 1.
If DTC P0024 or P0025 is displayed, check the exhaust camshaft circuit for the left bank VVT system (bank 2).
Bank 2 refers to the bank that does not include cylinder No. 1.
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 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.

Scheme 428

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0014, P0015, P0024 OR P0025) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0014, P0015, P0024 or P0025 is output A DTC P0014, P0015, P0024 or P0025 and other DTCs are output B HINT: If any DTCs other than P0014, P0015, P0024 or P0025 are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT EXHAUST LINEAR (BANK 1 OR 2)) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT Exhaust Linear (Bank 1) or Control the VVT Exhaust Linear (Bank 2). Check the engine speed while operating the camshaft timing oil control valve assembly using the Techstream. OK Techstream Operation Engine Condition 0% (OFF) Normal engine speed 127% (ON) Engine idles roughly or stalls (soon after camshaft timing oil control valve assembly switched from off to on) NG --> See step 6 OK: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (DTC P0014, P0015, P0024 OR P0025) 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-394619-S02527777542011040800000) . Start the engine and warm it up. 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. NG --> See step 6 OK --> See step 5
GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-394619-S37978292982011040800000)
CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-394619-S06103702132011040800000)
CHECK VALVE TIMING (CHECK FOR LOOSE OR JUMPED TEETH ON TIMING CHAIN) Remove the cylinder head cover sub-assemblies RH and LH. Turn the crankshaft to align the matchmarks 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. TEXT IN ILLUSTRATION *1 Timing Mark Turn the crankshaft clockwise 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 --> See step 11 OK: Go to next step
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT) Remove the camshaft timing oil control valve assembly for exhaust camshaft. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 6.9 to 7.9 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for Exhaust Camshaft) 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. TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for Exhaust Camshaft) Reinstall the camshaft timing oil control valve assembly for exhaust camshaft. NG --> See step 12 OK: Go to next step
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. TEXT IN ILLUSTRATION *1 Bank 1 (No. 2 Oil Pipe) *2 Bank 2 (No. 1 Oil Pipe) 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 --> See step 13 OK: Go to next step
REPLACE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY Replace the camshaft timing exhaust gear assembly (bank 1 or bank 2). Refer to «REMOVAL»(ref-394762-S15242098062011040800000) . NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS 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-394619-S02527777542011040800000) . Start the engine and warm it up. 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 P0014, P0015, P0024 or P0025 is output when foreign objects in 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 may then be captured by the oil, thus eliminating the source of the problem. NG --> See step 14 OK --> END
ADJUST VALVE TIMING. Refer to «REASSEMBLY»(ref-394762-S00746161652011040800000)
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT). Refer to «REMOVAL»(ref-394792-S13745758862011040800000)
REPLACE OIL CONTROL VALVE FILTER OR OIL PIPE. Refer to «DISASSEMBLY»(ref-394762-S22148335812011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)

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 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.

Scheme 429

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0016 OR P0018) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0016 or P0018 is output A DTC P0016 or P0018 and other DTCs are output B HINT: If any DTCs other than P0016 or P0018 are output, troubleshoot those DTCs first. B --> See step 9 A: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT SYSTEM (BANK 1 OR 2)) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT system (Bank 1) or Control the VVT System (Bank 2). Check the engine speed while operating the camshaft timing oil control valve assembly using the Techstream. OK Techstream Operation Engine Condition OFF Normal engine idle speed ON Engine idles roughly or stalls (soon after camshaft timing oil control valve assembly switched from off to on) NG --> See step 4 OK: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (P0016 OR P0018) 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-394619-S02527777542011040800000) . Start the engine and warm it up. 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. NG --> See step 4 OK --> See step 14
CHECK VALVE TIMING (CHECK FOR LOOSE OR 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. TEXT IN ILLUSTRATION *1 Timing Mark Turn the crankshaft clockwise 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 --> See step 10 OK: Go to next step
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT) Remove the camshaft timing oil control valve assembly for intake camshaft. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 6.9 to 7.9 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for Intake Camshaft) 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. TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for Intake Camshaft) Reinstall the camshaft timing oil control valve assembly for intake camshaft. NG --> See step 11 OK: Go to next step
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. TEXT IN ILLUSTRATION *1 Bank 1 (No. 2 Oil Pipe) *2 Bank 2 (No. 1 Oil Pipe) 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 --> See step 12 OK: Go to next step
REPLACE CAMSHAFT TIMING GEAR ASSEMBLY Replace the camshaft timing gear assembly (bank 1 or bank 2). Refer to «REMOVAL»(ref-394762-S15242098062011040800000) . NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS 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-394619-S02527777542011040800000) . Start the engine and warm it up. 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 DTC is set using the Techstream. OK No pending DTC output. HINT: DTC P0016 or P0018 is output when foreign objects in 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 may then be captured by the oil filter, thus eliminating the source of the problem. NG --> See step 13 OK --> END
GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-394619-S37978292982011040800000)
ADJUST VALVE TIMING. Refer to «REASSEMBLY»(ref-394762-S00746161652011040800000)
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT). Refer to «REMOVAL»(ref-394792-S13745758862011040800000)
REPLACE OIL PIPE OR OIL CONTROL VALVE FILTER. Refer to «DISASSEMBLY»(ref-394762-S22148335812011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)
CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-394619-S06103702132011040800000)

HINT

Scheme 430

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0017 OR P0019) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0017 or P0019 is output A DTC P0017 or P0019 and other DTCs are output B HINT: If any DTCs other than P0017 or P0019 are output, troubleshoot those DTCs first. B --> See step 9 A: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT EXHAUST LINEAR (BANK 1 OR 2)) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT Exhaust Linear (Bank 1) or Control the VVT Exhaust Linear (Bank 2). Check the engine speed while operating the camshaft timing oil control valve assembly using the Techstream. OK Techstream Operation Engine Condition 0% (OFF) Normal engine idle speed 127% (ON) Engine idles roughly or stalls (soon after camshaft timing oil control valve assembly switched from off to on) NG --> See step 4 OK: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (DTC P0017 OR P0019) 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-394619-S02527777542011040800000) . Start the engine and warm it up. 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. NG --> See step 4 OK --> See step 14
CHECK VALVE TIMING (CHECK FOR LOOSE OR JUMPED TEETH ON TIMING CHAIN) Remove the cylinder head cover sub-assemblies RH and LH. Turn the crankshaft to align the matchmarks 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. TEXT IN ILLUSTRATION *1 Timing Mark Turn the crankshaft clockwise 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 --> See step 10 OK: Go to next step
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT) Remove the camshaft timing oil control valve assembly for exhaust camshaft. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 6.9 to 7.9 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for Exhaust Camshaft) 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. TEXT IN ILLUSTRATION *1 Component without harness connected (Camshaft Timing Oil Control Valve Assembly for Exhaust Camshaft) Reinstall the camshaft timing oil control valve assembly for exhaust camshaft. NG --> See step 11 OK: Go to next step
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. TEXT IN ILLUSTRATION *1 Bank 1 (No. 2 Oil Pipe) *2 Bank 2 (No. 1 Oil Pipe) 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 --> See step 12 OK: Go to next step
REPLACE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY Replace the camshaft timing exhaust gear assembly (bank 1 or bank 2). Refer to «REMOVAL»(ref-394762-S15242098062011040800000) . NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS 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-394619-S02527777542011040800000) . Start the engine and warm it up. 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 DTC is set using the Techstream. OK No pending DTC output. HINT: DTC P0017 or P0019 is output when foreign objects in 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 may then be captured by the oil filter, thus eliminating the source of the problem. NG --> See step 13 OK --> END
GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-394619-S37978292982011040800000)
ADJUST VALVE TIMING. Refer to «REASSEMBLY»(ref-394762-S00746161652011040800000)
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT). Refer to «REMOVAL»(ref-394792-S13745758862011040800000)
REPLACE OIL PIPE OR OIL CONTROL VALVE FILTER. Refer to «DISASSEMBLY»(ref-394762-S22148335812011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)
CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-394619-S06103702132011040800000)

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

HINT

Scheme 431

Scheme 431: PROCEDURE

Scheme 432

INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) Disconnect the air fuel ratio sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance 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 1 (HA2A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA2A) - 4 (A2A-) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Air Fuel Ratio Sensor) *2 Bank 1 *3 Bank 2 Reconnect the air fuel ratio sensor connector. NG --> See step 5 OK: Go to next step
CHECK TERMINAL VOLTAGE (+B OF AIR FUEL RATIO SENSOR) Disconnect the air fuel ratio sensor 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 B7-2 (+B) - Body ground Ignition switch ON 11 to 14 V B8-2 (+B) - Body ground Ignition switch ON 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Air Fuel Ratio Sensor) *2 Bank 1 *3 Bank 2 Reconnect the air fuel ratio sensor connector. NG --> See step 4 OK: Go to next step
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 (Check for Open) Tester Connection Condition Specified Condition B7-1 (HA1A) - B39-22 (HA1A) Always Below 1 ohms B8-1 (HA2A) - B39-20 (HA2A) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B7-1 (HA1A) or B39-22 (HA1A) - Body ground Always 10 kohms or higher B8-1 (HA2A) or B39-20 (HA2A) - Body ground Always 10 kohms or higher Reconnect the air fuel ratio sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ECM) OK --> See step 6
CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ENGINE ROOM JUNCTION BLOCK ASSEMBLY) Disconnect the air fuel ratio sensor connector. Remove the engine room junction block assembly from the engine room relay block. Disconnect the engine room junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B7-2 (+B) - 1E-1 Always Below 1 ohms B8-2 (+B) - 1E-1 Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B7-2 (+B) or 1E-1 - Body ground Always 10 kohms or higher B8-2 (+B) or 1E-1 - Body ground Always 10 kohms or higher Reconnect the engine room junction block assembly connector. Reinstall the engine room junction block assembly. Reconnect the air fuel ratio sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ENGINE ROOM JUNCTION BLOCK ASSEMBLY) OK --> See step 7
REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-394792-S22742457202011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)
REPLACE ENGINE ROOM JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL»(ref-394787-S17959955042011040800000)

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

HINT

Scheme 433

Scheme 433: PROCEDURE

Scheme 434

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 Tester Connection Condition Specified Condition 2 (HT1B) - 1 (+B) 20°C (68°F) 11 to 16 ohms 2 (HT1B) - 3 (E2) Always 10 kohms or higher 1 (HT2B) - 2 (+B) 20°C (68°F) 11 to 16 ohms 1 (HT2B) - 4 (E2) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Heated Oxygen Sensor) *2 Bank 1 *3 Bank 2 Reconnect the heated oxygen sensor connector. NG --> See step 4 OK: Go to next step
CHECK TERMINAL VOLTAGE (+B OF HEATED OXYGEN SENSOR) Disconnect the heated oxygen sensor 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 A22-1 (+B) - Body ground Ignition switch ON 11 to 14 V B36-2 (+B) - Body ground Ignition switch ON 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Heated Oxygen Sensor) *2 Bank 1 *3 Bank 2 - - Reconnect the heated oxygen sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (HEATED OXYGEN SENSOR - ENGINE ROOM JUNCTION BLOCK ASSEMBLY) OK: Go to next step
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 A22-2 (HT1B) - B39-45 (HT1B) Always Below 1 ohms B36-1 (HT2B) - B39-44 (HT2B) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition A22-2 (HT1B) or B39-45 (HT1B) - Body ground Always 10 kohms or higher B36-1 (HT2B) or B39-44 (HT2B) - Body ground Always 10 kohms or higher Reconnect the heated oxygen sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (HEATED OXYGEN SENSOR - ECM) OK --> See step 5
REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-394792-S01472412032011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)

HINT

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

HINT

Scheme 435

Scheme 435: PROCEDURE

Scheme 436

Scheme 437

READ DTC OUTPUT (DTC P0102 OR P0103) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0102 is output A DTC P0103 is output B B --> See step 5 A: Go to next step
CHECK HARNESS AND CONNECTOR (POWER SOURCE VOLTAGE) Disconnect the mass air flow meter sub-assembly 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 B3-3 (+B) - Body ground Ignition switch ON 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Mass Air Flow Meter Sub-assembly) Reconnect the mass air flow meter sub-assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (MASS AIR FLOW METER - ENGINE ROOM JUNCTION BLOCK ASSEMBLY) OK: Go to next step
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) Disconnect the mass air flow meter sub-assembly 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 B3-5 (VG) - B39-74 (VG) Always Below 1 ohms B3-4 (E2G) - B39-75 (E2G) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B3-5 (VG) or B39-74 (VG) - Body ground Always 10 kohms or higher Reconnect the mass air flow meter sub-assembly connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) OK: Go to next step
INSPECT MASS AIR FLOW METER SUB-ASSEMBLY Perform On-vehicle Inspection. Refer to «ON-VEHICLE INSPECTION»(ref-394792-S15778094572011040800000) . Perform Inspection. Refer to «INSPECTION»(ref-394792-S05859637552011040800000) . Inspect the function of the mass air flow meter sub-assembly. Remove the mass air flow meter sub-assembly with the connector connected. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream to the DLC3. Enter the following menus: Powertrain / Engine / Data List / MAF. Blow air to the mass air flow meter sub-assembly and check that the intake air amount reading changes. OK The reading changes. NG --> See step 7 OK --> See step 8
CHECK HARNESS AND CONNECTOR (SENSOR GROUND) Disconnect the mass air flow meter sub-assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B3-4 (E2G) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Mass Air Flow Meter Sub-assembly) Reconnect the mass air flow meter sub-assembly connector. NG --> See step 6 OK --> See step 7
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) Disconnect the mass air flow meter sub-assembly connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B3-4 (E2G) - B39-75 (E2G) Always Below 1 ohms Reconnect the mass air flow meter sub-assembly connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) OK --> See step 8
REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL»(ref-394792-S26454467962011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)

Scheme 438

Scheme 438: DESCRIPTION

The intake air temperature sensor, in the mass air flow meter sub-assembly, 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 (Scheme 438)
The intake air temperature sensor is powered by a 5 V supply from the THA terminal of the ECM, via resistor R.
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 Condition	Trouble Area
P0111	When either of the following conditions is met (2 trip detection logic): The intake air temperature rise is small, from the previous trip warm-up to the following trip When the change in the intake air temperature after engine start is less than the threshold value	Mass air flow meter sub-assembly

HINT

Scheme 439

Scheme 439: PROCEDURE

Scheme 440

READ VALUE USING TECHSTREAM (INTAKE AIR) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Intake Air. Read the value displayed on the Techstream. Standard Same as actual intake air temperature. Result Result Proceed to Displayed temperature is -40°C (-40°F) A Displayed temperature is 140°C (284°F) 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). C --> See step 6 B --> See step 4 A: Go to next step
READ VALUE USING TECHSTREAM (CHECK FOR OPEN IN WIRE HARNESS) Confirm good connection at the mass air flow meter sub-assembly. TEXT IN ILLUSTRATION *1 Mass Air Flow Meter Sub-assembly *2 ECM *3 Front view of wire harness connector (to Mass Air Flow Meter Sub-assembly) - - Disconnect the mass air flow meter sub-assembly connector. Connect terminals THA and E2 of the mass air flow meter sub-assembly connector on the wire harness side. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Intake Air. Read the value displayed on the Techstream. Standard 140°C (284°F) Reconnect the mass air flow meter sub-assembly connector. NG --> See step 3 OK --> See step 7
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) Disconnect the mass air flow meter sub-assembly connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B3-1 (THA) - B39-73 (THA) Always Below 1 ohms B3-2 (E2) - B39-98 (ETHA) Always Below 1 ohms Reconnect the mass air flow meter sub-assembly connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) OK --> See step 8
READ VALUE USING TECHSTREAM (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the mass air flow meter sub-assembly connector. TEXT IN ILLUSTRATION *1 Mass Air Flow Meter Sub-assembly *2 ECM Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Intake Air. Read the value displayed on the Techstream. Standard -40°C (-40°F) Reconnect the mass air flow meter sub-assembly connector. NG --> See step 5 OK --> See step 7
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) Disconnect the mass air flow meter sub-assembly connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B3-1 (THA) or B39-73 (THA) - Body ground Always 10 kohms or higher Reconnect the mass air flow meter sub-assembly connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) OK --> See step 8
CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-394619-S06103702132011040800000)
REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL»(ref-394792-S26454467962011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)

HINT

Scheme 441

Scheme 441: PROCEDURE

Scheme 442

READ VALUE USING TECHSTREAM (COOLANT TEMP) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Coolant Temp. Read the value displayed on the Techstream. Standard Same as actual engine coolant temperature. Result Result Proceed to Displayed temperature is -40°C (-40°F) A Displayed temperature is 140°C (284°F) B Same as actual engine coolant 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). C --> See step 6 B --> See step 4 A: Go to next step
READ VALUE USING TECHSTREAM (CHECK FOR OPEN IN WIRE HARNESS) Confirm good connection at the engine coolant temperature sensor connector. TEXT IN ILLUSTRATION *1 Engine Coolant Temperature Sensor *2 ECM *3 Front view of wire harness connector (to Engine Coolant Temperature Sensor) - - 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 ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Coolant Temp. Read the value displayed on the Techstream. Standard 140°C (284°F) Reconnect the engine coolant temperature sensor connector. NG --> See step 3 OK --> See step 7
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 B6-2 - B39-76 (THW) Always Below 1 ohms B6-1 - B39-97 (ETHW) Always Below 1 ohms Reconnect the engine coolant temperature sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) OK --> See step 8
READ VALUE USING TECHSTREAM (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the engine coolant temperature sensor connector. TEXT IN ILLUSTRATION *1 Engine Coolant Temperature Sensor *2 ECM Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Coolant Temp. Read the value displayed on the Techstream. Standard -40°C (-40°F) Reconnect the engine coolant temperature sensor connector. NG --> See step 5 OK --> See step 7
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 B6-2 or B39-76 (THW) - Body ground Always 10 kohms or higher Reconnect the engine coolant temperature sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) OK --> See step 8
CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-394619-S06103702132011040800000)
REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-394792-S01476926432011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)

HINT

If any of DTCs P0115, P0117 and P0118 are set simultaneously with DTC P0116, the engine coolant temperature sensor may have an open or a short circuit. Troubleshoot those DTCs first.
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 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

Scheme 443

Scheme 443: PROCEDURE

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 / ETCS / 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 Throttle Position No. 2 Throttle Position No. 1 Throttle Position No. 2 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 the "CHECK HARNESS AND CONNECTOR (THROTTLE POSITION SENSOR - ECM)". B --> See step 5 A: Go to next step
CHECK HARNESS AND CONNECTOR (THROTTLE POSITION SENSOR - ECM) Disconnect the throttle position 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 B1-5 (VC) - B39-80 (VCTA) Always Below 1 ohms B1-6 (VTA) - B39-78 (VTA1) Always Below 1 ohms B1-4 (VTA2) - B39-77 (VTA2) Always Below 1 ohms B1-3 (E2) - B39-79 (ETA) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B1-5 (VC) or B39-80 (VCTA) - Body ground Always 10 kohms or higher B1-6 (VTA) or B39-78 (VTA1) - Body ground Always 10 kohms or higher B1-4 (VTA2) or B39-77 (VTA2) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the throttle position sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE POSITION SENSOR - ECM) OK: Go to next step
INSPECT ECM (VC VOLTAGE) Disconnect the throttle position sensor 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 B1-5 (VC) - B1-3 (E2) Ignition switch ON 4.5 to 5.5 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Throttle Position Sensor) Reconnect the throttle position sensor connector. NG --> See step 6 OK: Go to next step
REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY Replace the throttle with motor body assembly. Refer to «REMOVAL»(ref-394792-S31816001072011040800000) . NEXT: Go to next step
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-394619-S02527777542011040800000) . 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
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)

HINT

If any of DTCs P0115, P0116, P0117 or P0118 are set simultaneously with DTC P0125, the engine coolant temperature sensor may have an open or a short circuit. Troubleshoot those DTCs first.
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 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 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 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

Malfunctioning areas can be identified by performing the Control the Injection Volume for A/F Sensor function provided in the Active Test. The Control the Injection Volume for A/F Sensor 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 for A/F Sensor operation using the Techstream.

Scheme 444

Scheme 444: INSPECTION PROCEDURE

Scheme 445

Connect the Techstream to the DLC3.
Start the engine.
Turn the Techstream on.
Warm up the engine at an engine speed of 2500 rpm for approximately 90 seconds.
Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor.
Perform the Active Test operation with the engine in an idling condition (press the RIGHT or LEFT button to change the fuel injection volume).
Monitor the voltage outputs 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: The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by -12.5% or increases the injection volume by 25%. Each sensor reacts in accordance with increases and decreases in the fuel injection volume. Techstream Display (Sensor) Injection Volume Status Voltage AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) +25% Rich Less than 3.1 V AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) -12.5% Lean More than 3.4 V O2S B1S2 or O2S B2S2 (Heated oxygen) +25% Rich More than 0.55 V O2S B1S2 or O2S B2S2 (Heated oxygen) -12.5% Lean Less than 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 Exhaust gas leaks 4 Fuel pressure Exhaust gas leaks (Air fuel ratio extremely lean or rich) Following the Control the Injection Volume for A/F Sensor procedure enables technicians to check and graph the voltage outputs of both the air fuel ratio and heated oxygen sensors. To display the graph, enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / A/F Control System / AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2. NOTE: Inspect the fuses for circuits related to this system before performing the following inspection procedure. 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 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. If the OX1B wire from the ECM connector is short-circuited to the +B wire, DTC P0136 will be set. If the OX2B wire from the ECM connector is short-circuited to the +B wire, DTC P0156 will be set.

Scheme 446

Scheme 446: PROCEDURE

Scheme 447

Scheme 448

Scheme 449

READ DTC OUTPUT (DTC P0136, P0137, P0138, P0139, P0156, P0157, P0158 OR P0159) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0138 or P0158 is output A DTC P0137 or P0157 is output B DTC P0136 or P0156 is output C DTC P0139 or P0159 is output D D --> See step 18 C --> See step 7 B --> See step 9 A: Go to next step
READ VALUE USING TECHSTREAM (O2S B1S2 OR O2S B2S2) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / A/F Control System / O2S B1S2 or O2S B2S2. Allow the engine to idle. Read the heated oxygen sensor output voltage while idling. Result Heated Oxygen Sensor Output Voltage Proceed to 1.0 V or more A Less than 1.0 V B B --> See step 5 A: Go to next step
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 1 (+B) - 3 (E2) Always 10 kohms or higher 1 (+B) - 4 (OX1B) Always 10 kohms or higher 2 (+B) - 4 (E2) Always 10 kohms or higher 2 (+B) - 3 (OX2B) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Heated Oxygen Sensor) *2 Bank 1 *3 Bank 2 Reconnect the heated oxygen sensor connector. NG --> See step 23 OK: Go to next step
CHECK HARNESS AND CONNECTOR (HEATED OXYGEN SENSOR - ECM) Turn the ignition switch off and wait for 5 minutes. Disconnect the ECM connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B39-45 (HT1B) - B39-114 (OX1B) Always 10 kohms or higher B39-44 (HT2B) - B39-112 (OX2B) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to ECM) Reconnect the ECM connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (HEATED OXYGEN SENSOR - ECM) OK --> See step 24
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 / 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% and +12%. The injection volume can be changed in 1% graduations within the 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. Result Techstream Display (Sensor) Voltage Variation Proceed to AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Alternates between more and less than 3.3 V OK AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Remains at more than 3.3 V NG AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Remains at less than 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 less or more than 3.3 V despite the heated oxygen sensor indicating a normal reaction, the air fuel ratio sensor is malfunctioning. NG --> See step 15 OK: Go to next step
INSPECT AIR FUEL RATIO SENSOR HINT: This air fuel ratio sensor test is to check the air fuel ratio sensor current during the fuel-cut. When the sensor is normal, the sensor current will indicate below 3.0 mA in this test. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Drive the vehicle according to the drive pattern listed below: Warm up the engine until the engine coolant temperature reaches 75°C (167°F) or more. Drive the vehicle at 38 mph (64 km/h) or more and decelerate the vehicle for 7 seconds or more. Repeat the deceleration above at least 3 times. Enter the following menus: Powertrain / Engine / Monitor / O2 Sensor / Details. Confirm that RANGE B1S1and RANGE B2S1 are either Pass or Fail. If the Techstream shows Incomplete, re-check RANGE B1S1 and RANGE B2S1 after performing the drive pattern. Select the RANGE B1S1 and RANGE B2S1. Read the Test Value. Standard Current Less than 3.0 mA HINT: If the Techstream shows Incomplete again, add the vehicle speed and use the second gear to decelerate the vehicle. Refer to the confirmation driving pattern. NG --> See step 15 OK --> See step 12
READ VALUE USING TECHSTREAM (O2S B1S2 OR O2S B2S2) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Start the engine. Enter the following menus: Powertrain / Engine / Data List / A/F Control System / O2S B1S2 or O2S B2S2. After warming up the engine, run the engine at an engine speed of 2500 rpm for 3 minutes. Read the output voltage of the heated oxygen sensor when the engine speed is suddenly increased. HINT: Quickly accelerate the engine to 4000 rpm 3 times using the accelerator pedal. Standard Fluctuates between 0.4 V or less and 0.55 V or more. NG --> See step 9 OK: Go to next step
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 / 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% and +12%. The injection volume can be changed in 1% graduations within the 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. Result Techstream Display (Sensor) Voltage Variation Proceed to AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Alternates between more and less than 3.3 V OK AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Remains at more than 3.3 V NG AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Remains at less than 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 less or more than 3.3 V despite the heated oxygen sensor indicating a normal reaction, the air fuel ratio sensor is malfunctioning. NG --> See step 15 OK --> See step 25
INSPECT FOR EXHAUST GAS LEAK Inspect for exhaust gas leaks from the exhaust manifold sub-assembly and exhaust pipes. OK No gas leaks. NG --> REPAIR OR REPLACE EXHAUST GAS LEAK POINT OK: Go to next step
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 Tester Connection Condition Specified Condition 2 (HT1B) - 1 (+B) 20°C (68°F) 11 to 16 ohms 2 (HT1B) - 3 (E2) Always 10 kohms or higher 1 (HT2B) - 2 (+B) 20°C (68°F) 11 to 16 ohms 1 (HT2B) - 4 (E2) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Heated Oxygen Sensor) *2 Bank 1 *3 Bank 2 Reconnect the heated oxygen sensor connector. NG --> See step 26 OK: Go to next step
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 A22-2 (HT1B) - B39-45 (HT1B) Always Below 1 ohms A22-4 (OX1B) - B39-114 (OX1B) Always Below 1 ohms A22-3 (E2) - B39-115 (EX1B) Always Below 1 ohms B36-1 (HT2B) - B39-44 (HT2B) Always Below 1 ohms B36-3 (OX2B) - B39-112 (OX2B) Always Below 1 ohms B36-4 (E2) - B39-113 (EX2B) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition A22-2 (HT1B) or B39-45 (HT1B) - Body ground Always 10 kohms or higher A22-4 (OX1B) or B39-114 (OX1B) - Body ground Always 10 kohms or higher B36-1 (HT2B) or B39-44 (HT2B) - Body ground Always 10 kohms or higher B36-3 (OX2B) or B39-112 (OX2B) - Body ground Always 10 kohms or higher Reconnect the heated oxygen sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (HEATED OXYGEN SENSOR - ECM) OK: Go to next step
REPLACE HEATED OXYGEN SENSOR Replace the heated oxygen sensor. Refer to «REMOVAL»(ref-394792-S01472412032011040800000) . NEXT: Go to next step
PERFORM CONFIRMATION DRIVING PATTERN Refer to the confirmation driving pattern for P0136, P0137, P0138, P0156, P0157 and P0158. NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (DTC P0136, P0137, P0138, P0156, P0157 OR P0158) Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Utility / All Readiness. Input DTC: P0136, P0137, P0138, P0156, P0157 or P0158. Check the DTC Monitor is NORMAL. If DTC Monitor is INCOMPLETE, perform the driving pattern adding the vehicle speed. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P0136, P00137, P0138, P0156, P0157 or P0158 is output) B B --> See step 27 A --> END
REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-394792-S22742457202011040800000) . NEXT: Go to next step
PERFORM CONFIRMATION DRIVING PATTERN Refer to the confirmation driving pattern for P0136, P0137, P0138, P0156, P0157 and P0158. NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (DTC P0136, P0138, P0156 OR P0158) Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Utility / All Readiness. Input DTC: P0136, P0138, P0156 or P0158. Check the DTC judgment result. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P0136, P0138, P0156 or P0158 is output) B B --> See step 26 A --> END
READ VALUE USING TECHSTREAM (O2S B1S2 OR O2S B2S2) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / A/F Control System / O2S B1S2 or O2S B2S2. Allow the engine to idle. Read the heated oxygen sensor output voltage while idling. Result Heated Oxygen Sensor Output Voltage Proceed to 1.0 V or more A Less than 1.0 V B B --> See step 21 A: Go to next step
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 1 (+B) - 3 (E2) Always 10 kohms or higher 1 (+B) - 4 (OX1B) Always 10 kohms or higher 2 (+B) - 4 (E2) Always 10 kohms or higher 2 (+B) - 3 (OX2B) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Heated Oxygen Sensor) *2 Bank 1 *3 Bank 2 Reconnect the heated oxygen sensor connector. NG --> See step 23 OK: Go to next step
CHECK HARNESS AND CONNECTOR (HEATED OXYGEN SENSOR - ECM) Turn the ignition switch off and wait for 5 minutes. Disconnect the ECM connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B39-45 (HT1B) - B39-114 (OX1B) Always 10 kohms or higher B39-44 (HT2B) - B39-112 (OX2B) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to ECM) Reconnect the ECM connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (HEATED OXYGEN SENSOR - ECM) OK --> See step 24
PERFORM CONFIRMATION DRIVING PATTERN Refer to the Confirmation Driving Pattern for P0139 or P0159. NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (DTC P0139 OR P0159) Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Utility / All Readiness. Input DTC: P0139 or P0159. Check the DTC Monitor is NORMAL. If DTC Monitor is INCOMPLETE, perform the driving pattern adding the vehicle speed. Result Result Proceed to ABNORMAL (DTC P0139 or P0159 is output) A NORMAL (DTC is not output) B B --> See step 28 A --> See step 23
REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-394792-S01472412032011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)
CHECK ENGINE TO DETERMINE CAUSE OF EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO. Refer to «DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1); DTC P0174: System Too Lean (Bank 2); DTC P0175: System Too Rich (Bank 2)»(ref-394804-S27668559512011040800000)
REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-394792-S01472412032011040800000)
REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-394792-S22742457202011040800000)
CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-394619-S06103702132011040800000)

HINT

The following instructions describe how to conduct the Control the Injection Volume for A/F Sensor operation using the Techstream.

Connect the Techstream to the DLC3.
Start the engine.
Turn the Techstream on.
Warm up the engine at an engine speed of 2500 rpm for approximately 90 seconds.
Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor.
Perform the Active Test operation with the engine in an idling condition (press the RIGHT or LEFT button to change the fuel injection volume).
Monitor the voltage outputs 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: The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by -12.5% or increases the injection volume by 25%. Each sensor reacts in accordance with increases and decreases in the fuel injection volume. Techstream Display (Sensor) Injection Volume Status Voltage AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) +25% Rich Less than 3.1 V AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) -12.5% Lean More than 3.4 V O2S B1S2 or O2S B2S2 (Heated oxygen) +25% Rich More than 0.55 V O2S B1S2 or O2S B2S2 (Heated oxygen) -12.5% Lean Less than 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 Exhaust gas leaks 4 Fuel pressure Exhaust gas leaks (Air fuel ratio extremely lean or rich) Following the Control the Injection Volume for A/F Sensor procedure enables technicians to check and graph the voltage outputs of both the air fuel ratio and heated oxygen sensors. To display the graph, enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / A/F Control System / AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2. NOTE: Inspect the fuses for circuits related to this system before performing the following inspection procedure. 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 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. 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. 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.

Scheme 450

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0171, P0172, P0174 OR P0175) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0171, P0172, P0174 and/or P0175 are output A DTC P0171, P0172, P0174 or P0175 and other DTCs are output B HINT: If any DTCs other than P0171, P0172, P0174 or P0175 are output, troubleshoot those DTCs first. B --> See step 18 A: Go to next step
CHECK PCV HOSE (HOSE CONNECTIONS) Check the PCV hose connections. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-394803-S02526785672011040800000) . OK PCV hose is connected correctly and is not damaged. NG --> REPAIR OR REPLACE PCV HOSE OK: Go to next step
CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION»(ref-394802-S30272393672011040800000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (AIR FUEL RATIO CONTROL) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine at an engine speed of 2500 rpm for approximately 90 seconds. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor. Perform the Active Test operation with the engine in an idling condition (press the RIGHT or LEFT button to change the fuel injection volume). 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: The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by -12.5% or increases the injection volume by 25%. Each sensor reacts in accordance with increases and decreases in the fuel injection volume. Techstream Display (Sensor) Injection Volume Status Voltage AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) +25% Rich Less than 3.1 V AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) -12.5% Lean More than 3.4 V O2S B1S2 or O2S B2S2 (Heated oxygen) +25% Rich More than 0.55 V O2S B1S2 or O2S B2S2 (Heated oxygen) -12.5% Lean Less than 0.4 V Result Status AFS Voltage B1S1 or AFS Voltage B2S1 Status O2S B1S2 or O2S B2S2 Air Fuel Ratio Condition and Air Fuel Ratio Sensor Condition Misfire Suspected Trouble Area Proceed to Lean/Rich Lean/Rich Normal - - A Lean Lean Actual air fuel ratio lean May occur PCV valve and hose PCV hose connections Fuel injector assembly blockage Gas leaks from exhaust system Intake system Fuel pressure Mass air flow meter sub-assembly Engine coolant temperature sensor A Rich Rich Actual air fuel ratio rich - Fuel injector assembly leakage or blockage Gas leaks from exhaust system Ignition system Fuel pressure Mass air flow meter sub-assembly Engine coolant temperature sensor A Lean Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Rich Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Lean: During the Control the Injection Volume for A/F Sensor Active Test, the air fuel ratio sensor output voltage (AFS Voltage) is consistently more than 3.4 V, and the heated oxygen sensor output voltage (O2S) is consistently less than 0.4 V. Rich: During the Control the Injection Volume for A/F Sensor Active Test, the AFS Voltage is consistently less than 3.1 V, and the O2S is consistently more than 0.55 V. Lean/Rich: During the Control the Injection Volume for A/F Sensor Active Test, the output voltage of the heated oxygen sensor alternates correctly. B --> See step 11 A: Go to next step
READ VALUE USING TECHSTREAM (COOLANT TEMP) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Coolant Temp. Read the Data List twice, when the engine is both cold and warmed up. Standard With cold engine Same as ambient air temperature. With warm engine Between 75°C and 95°C (167°F and 203°F) NG --> See step 19 OK: Go to next step
INSPECT MASS AIR FLOW METER SUB-ASSEMBLY Inspect the mass air flow meter sub-assembly. Refer to «ON-VEHICLE INSPECTION»(ref-394792-S15778094572011040800000) . NG --> See step 20 OK: Go to next step
CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-394806-S40032641842011040800000) . NG --> REPAIR OR REPLACE FUEL SYSTEM OK: Go to next step
INSPECT FOR EXHAUST GAS LEAK Inspect for exhaust gas leaks from the exhaust manifold sub-assembly and exhaust pipes. OK No gas leaks NG --> REPAIR OR REPLACE EXHAUST GAS LEAK POINT OK: Go to next step
CHECK IGNITION SYSTEM Check the ignition system. Refer to «ON-VEHICLE INSPECTION»(ref-394768-S26464277512011040800000) . NG --> REPAIR OR REPLACE IGNITION SYSTEM OK: Go to next step
INSPECT FUEL INJECTOR ASSEMBLY (INJECTION VOLUME) Inspect the fuel injector assembly. Refer to «INSPECTION»(ref-394801-S35121139602011040800000) . NG --> See step 21 OK: Go to next step
INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) Disconnect the air fuel ratio sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance 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 1 (HA2A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA2A) - 4 (A2A-) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Air Fuel Ratio Sensor) *2 Bank 1 *3 Bank 2 Reconnect the air fuel ratio sensor connector. NG --> See step 22 OK: Go to next step
CHECK TERMINAL VOLTAGE (+B TERMINAL OF AIR FUEL RATIO SENSOR) Disconnect the air fuel ratio sensor 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 B7-2 (+B) - Body ground Ignition switch ON 11 to 14 V B8-2 (+B) - Body ground Ignition switch ON 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Air Fuel Ratio Sensor) *2 Bank 1 *3 Bank 2 Reconnect the air fuel ratio sensor connector. NG --> See step 17 OK: Go to next step
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 (Check for Open) Tester Connection Condition Specified Condition B7-1 (HA1A) - B39-22 (HA1A) Always Below 1 ohms B7-3 (A1A+) - B39-126 (A1A+) Always Below 1 ohms B7-4 (A1A-) - B39-125 (A1A-) Always Below 1 ohms B8-1 (HA2A) - B39-20 (HA2A) Always Below 1 ohms B8-3 (A2A+) - B39-103 (A2A+) Always Below 1 ohms B8-4 (A2A-) - B39-102 (A2A-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B7-1 (HA1A) or B39-22 (HA1A) - Body ground Always 10 kohms or higher B7-3 (A1A+) or B39-126 (A1A+) - Body ground Always 10 kohms or higher B7-4 (A1A-) or B39-125 (A1A-) - Body ground Always 10 kohms or higher B8-1 (HA2A) or B39-20 (HA2A) - Body ground Always 10 kohms or higher B8-3 (A2A+) or B39-103 (A2A+) - Body ground Always 10 kohms or higher B8-4 (A2A-) or B39-102 (A2A-) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the air fuel ratio sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ECM) OK: Go to next step
REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-394792-S22742457202011040800000) . NEXT: Go to next step
PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Clear the DTCs (even if no DTCs are stored, perform the Clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-394619-S02527777542011040800000) [A]. Start the engine and warm it up (until the engine coolant temperature is 75°C (167°F) or higher) with all the accessories switched off [B]. With the engine warmed up, idle the engine for 2 minutes or more [C]. Drive the vehicle at between 38 and 75 mph (60 and 120 km/h) and at an engine speed of between 1400 and 3200 rpm for 5 minutes or more [D]. NOTE: If the conditions in this test are not strictly followed, no malfunction will be detected. NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (DTC P0171, P0172, P0174 OR P0175) Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs using the Techstream. Result Result Proceed to DTC is not output A DTC P0171 or P0172 is output B B --> See step 23 A --> END
CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ENGINE ROOM JUNCTION BLOCK ASSEMBLY) Disconnect the air fuel ratio sensor connector. Remove the engine room junction block assembly from the engine room relay block. Disconnect the engine room junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B7-2 (+B) - 1E-1 Always Below 1 ohms B8-2 (+B) - 1E-1 Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B7-2 (+B) or 1E-1 - Body ground Always 10 kohms or higher B8-2 (+B) or 1E-1 - Body ground Always 10 kohms or higher Reconnect the engine room junction block assembly connector. Reinstall the engine room junction block assembly. Reconnect the air fuel ratio sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ENGINE ROOM JUNCTION BLOCK ASSEMBLY) OK --> See step 24
GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-394619-S37978292982011040800000)
REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-394792-S01476926432011040800000)
REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL»(ref-394792-S26454467962011040800000)
REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-394801-S41853142702011040800000)
REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-394792-S22742457202011040800000)
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)
REPLACE ENGINE ROOM JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL»(ref-394787-S17959955042011040800000)

HINT

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

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INSPECT ENGINE ROOM JUNCTION BLOCK ASSEMBLY (F/PMP RELAY) Remove the engine room junction block assembly from the engine room relay block. Disconnect the engine room junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1A-1 (Engine room junction block assembly) - 1F-8 Battery voltage is applied to terminals 1F-5 and 1F-12 Battery voltage is applied to terminals 1F-2 and 1F-3 Battery voltage is applied to terminals 1A-1 (Engine room junction block assembly) and 1F-13 Below 1 ohms 1A-1 (Engine room junction block assembly) - 1F-8 Battery voltage is applied to terminals 1F-5 and 1F-12 Battery voltage is applied to terminals 1F-2 and 1F-3 No battery voltage is applied to terminals 1A-1 (Engine room junction block assembly) and 1F-13 10 kohms or higher 1A-1 (Engine room junction block assembly) - 1F-10 Battery voltage is applied to terminals 1F-5 and 1F-12 Battery voltage is applied to terminals 1F-2 and 1F-3 Battery voltage is applied to terminals 1A-1 (Engine room junction block assembly) and 1F-13 10 kohms or higher 1A-1 (Engine room junction block assembly) - 1F-10 Battery voltage is applied to terminals 1F-5 and 1F-12 Battery voltage is applied to terminals 1F-2 and 1F-3 No battery voltage is applied to terminals 1A-1 (Engine room junction block assembly) and 1F-13 Below 1 ohms TEXT IN ILLUSTRATION *1 Component with harness connected (Engine Room Junction Block Assembly) Reconnect the engine room junction block assembly connector. Reinstall the engine room junction block assembly. NG --> See step 5 OK: Go to next step
CHECK TERMINAL VOLTAGE (ENGINE ROOM JUNCTION BLOCK ASSEMBLY) Remove the engine room junction block assembly from the engine room relay block. Disconnect the engine room junction block assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 1F-13 - Body ground Cranking 11 to 14 V 1F-13 - Body ground Ignition switch ON 0 to 3 V Reconnect the engine room junction block assembly connector. Reinstall the engine room junction block assembly. NG --> See step 6 OK: Go to next step
CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - ECM) Remove the engine room junction block assembly from the engine room relay block. Disconnect the engine room junction block assembly 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 1F-13 - A41-48 (FPR) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1F-13 or A41-48 (FPR) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the engine room junction block assembly connector. Reinstall the engine room junction block assembly. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - ECM) OK --> See step 4
REPLACE ECM. Refer to «REMOVAL»(ref-394792-S25581811582011040800000)
REPLACE ENGINE ROOM JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL»(ref-394787-S17959955042011040800000)
REPLACE ENGINE ROOM JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL»(ref-394787-S17959955042011040800000)

Engine Control (2GR-FE) (Diagnostic Codes (P0010-P0230): Diagnosis Toyota Venza I

INSPECTION PROCEDURE

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