Engine Control (Sfi) System (Diagnostic Codes (P0010-P0365)): Diagnosis — Lexus GS III рестайлинг (2007-2011)

INSPECTION PROCEDURE

HINT

If DTC P0010 is displayed, check the right bank VVT system for the intake camshaft circuit.
Bank 1 refers to the bank that includes the No. 1 cylinder.
If DTC P0020 is displayed, check the left bank VVT system for the intake camshaft circuit.
Bank 2 refers to the bank that does not include the No. 1 cylinder.
Read freeze frame data using the Techstream. The ECM records the 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-387083-S30119540122011022400000) .

Scheme 179

Scheme 179: PROCEDURE

Scheme 180

CHECK DTC (DTC P0010 OR P0020) Connect the Techstream to the DLC3. Clear DTC after recording the freeze frame data and DTC. Turn the power switch off. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Allow the engine to idle and check for DTCs. Check that P0010 or P0020 is present. OK P0010 or P0020 is present NG --> CHECK FOR INTERMITTENT PROBLEMS OK: Go to next step
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV FOR INTAKE CAMSHAFT) Disconnect the E51 or E49 OCV connector. Remove the OCV. Measure the resistance between the terminals of the OCV. Standard resistance 6.9 to 7.9 ohms at 20°C (68°F) NG --> REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY OK: Go to next step
CHECK HARNESS AND CONNECTOR (OCV - ECM) Disconnect the E51 or E49 OCV connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance (check for open) Tester Connection Specified Condition E51-1 - OC1+ (E83-8) Below 1 ohms E51-2 - OC1- (E83-7) Below 1 ohms E49-1 - OC2+ (E83-4) Below 1 ohms E49-2 - OC2- (E83-3) Below 1 ohms Standard resistance (check for short) Tester Connection Specified Condition E51-1 or OC1+ (E83-8) - Body ground 10 kohms or higher E51-2 or OC1- (E83-7) - Body ground 10 kohms or higher E49-1 or OC2+ (E83-4) - Body ground 10 kohms or higher E49-2 or OC2- (E83-3) - Body ground 10 kohms or higher Reconnect the OCV connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
REPLACE ECM. Refer to «REMOVAL»(ref-387086-S06388950852011022400000)

HINT

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

If DTC P0011 or P0012 is displayed, check the right bank VVT system for the intake camshaft circuit (bank 1).
Bank 1 refers to the bank that includes the No. 1 cylinder.
If DTC P0021 or P0022 is displayed, check the left bank VVT system for the intake camshaft circuit (bank 2).
Bank 2 refers to the bank that does not include the No. 1 cylinder.
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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .

Scheme 181

Scheme 181: PROCEDURE

Scheme 182

Scheme 183

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011, P0012, P0021 OR P0022) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to P0011, P0012, P0021 or P0022 A P0011, P0012, P0021 or P0022 and other DTCs B HINT: If any DTCs other than P0011, P0012, P0021 or P0022 are output, troubleshoot those DTCs first. B --> GO TO DTC CHART A: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE OCV) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT System (Bank 1) or Control the VVT System (Bank 2). Check the engine speed while operating the Oil Control Valve (OCV) using the Techstream. OK Tester Operation Specified Condition OCV OFF Normal engine speed OCV ON Engine idles roughly or stalls (soon after OCV switched from OFF to ON) NG --> See step 4 OK: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (DTC P0011, P0012, P0021 OR P0022) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Warm up the engine. Switch the ECM from normal mode to check mode using the Techstream. Refer to «CHECK MODE PROCEDURE»(ref-387083-S01377880472011022400000) . Drive the vehicle for more than 10 minutes. Read DTCs using the Techstream. OK No DTC output. NG --> See step 4 OK --> END
CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TEETH ON TIMING CHAIN) Remove the cylinder head covers RH and LH. Turn the crankshaft pulley, and align its groove with the timing mark "0" of the timing chain cover. Check that the timing marks of the camshaft timing gears are aligned with the timing marks of the bearing cap as shown in the illustration. If not, turn the crankshaft 1 revolution (360°), then align the marks as above. OK Timing marks on camshaft timing gears are aligned as shown in the illustration. Reinstall the cylinder head covers. NG --> ADJUST VALVE TIMING OK: Go to next step
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV FOR INTAKE CAMSHAFT) Remove the OCV. Measure the resistance between the terminals of the OCV. Standard resistance 6.9 to 7.9 ohms at 20°C (68°F) Apply positive battery voltage to terminal 1 and negative battery voltage to terminal 2. Check the valve operation. OK Valve moves quickly. Reinstall the OCV. NG --> REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY OK: Go to next step
INSPECT OIL CONTROL VALVE FILTER AND PIPE Remove the No. 1 or No. 2 oil pipe. Remove the oil control valve filter. Check that the filter and pipe are not clogged. OK The filter and pipe are not clogged. NG --> CLEAN OIL CONTROL VALVE FILTER AND PIPE OK: Go to next step
REPLACE CAMSHAFT TIMING GEAR ASSEMBLY NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Warm up the engine. Switch the ECM from normal mode to the check mode using the Techstream. Refer to «CHECK MODE PROCEDURE»(ref-387083-S01377880472011022400000) . Driver the vehicle for more than 10 minutes. Read output DTCs using the Techstream. OK No 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 registered 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. OK --> SYSTEM OK NG --> REPLACE ECM

HINT

If DTC P0013 is displayed, check the bank 1 VVT system for the exhaust camshaft circuit.
Bank 1 refers to the bank that includes the No. 1 cylinder.
If DTC P0023 is displayed, check the bank 2 VVT system for the exhaust camshaft circuit.
Bank 2 refers to the bank that does not include the No. 1 cylinder.
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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .

Scheme 184

CHECK DTC (DTC P0013 OR P0023) Connect the Techstream to the DLC3. Clear DTC after recording the freeze frame data and DTC. Turn the power switch off. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Allow the engine to idle and check for DTCs. Check that P0013 or P0023 is present. OK P0013 or P0023 is present NG --> CHECK FOR INTERMITTENT PROBLEMS OK: Go to next step
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY Disconnect the E52 or E61 OCV connector. Remove the OCV. Measure the resistance between the terminals of the OCV. Standard resistance 6.9 to 7.9 ohms at 20°C (68°F) Reconnect the OCV connector. NG --> REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY OK: Go to next step
CHECK HARNESS AND CONNECTOR (OCV - ECM) Disconnect the E52 or E61 OCV connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance (check for open) Tester Connection Specified Condition E52-1 - OE1+ (E83-6) Below 1 ohms E52-2 - OE1- (E83-5) Below 1 ohms E61-1 - OE2+ (E83-2) Below 1 ohms E61-2 - OE2- (E83-1) Below 1 ohms Standard resistance (check for short) Tester Connection Specified Condition E52-1 or OE1+ (E83-6) - Body ground 10 kohms or higher E52-2 or OE1- (E83-5) - Body ground 10 kohms or higher E61-1 or OE2+ (E83-2) - Body ground 10 kohms or higher E61-2 or OE2- (E83-1) - Body ground 10 kohms or higher Reconnect the OCV connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE ECM

HINT

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

If DTC P0014 or P0015 is displayed, check the bank 1 VVT system for the exhaust camshaft circuit.
Bank 1 refers to the bank that includes the No. 1 cylinder.
If DTC P0024 or P0025 is displayed, check the bank 2 VVT system for the exhaust camshaft circuit.
Bank 2 refers to the bank that does not include the No. 1 cylinder.
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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .

Scheme 185

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0014, P0015, P0024 OR P0025) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC output) Proceed to P0014, P0015, P0024 or P0025 A P0014, P0015, P0024 or P0025 and other DTCs B HINT: If any DTCs other than P0014, P0015, P0024 or P0025 are output, troubleshoot those DTCs first. B --> GO TO DTC CHART A: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE OCV) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT System (Bank 1) or Control the VVT System (Bank 2). Check the engine speed while operating the Oil Control Valve (OCV) using the Techstream. OK Tester Operation Specified Condition OCV OFF Normal engine speed OCV ON Engine idles roughly or stalls (soon after OCV switched from OFF to ON) NG --> See step 4 OK: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (DTC P0014, P0015, P0024 OR P0025) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Warm up the engine. Switch the ECM from normal mode to check mode using the Techstream. Refer to «CHECK MODE PROCEDURE»(ref-387083-S01377880472011022400000) . Drive the vehicle for more than 10 minutes. Read DTCs using the Techstream. OK No DTC output. NG --> See step 4 OK --> END
CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TEETH ON TIMING CHAIN) Remove the cylinder head covers RH and LH. Turn the crankshaft pulley, and align its groove with the timing mark "0" of the timing chain cover. Check that the timing marks of the camshaft timing gears are aligned with the timing marks of the bearing cap as shown in the illustration. If not, turn the crankshaft 1 revolution (360°), then align the marks as above. OK Timing marks on crankshaft timing gears are aligned as shown in the illustration. Reinstall the cylinder head covers. NG --> ADJUST VALVE TIMING OK: Go to next step
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV FOR EXHAUST CAMSHAFT) Remove the OCV. Measure the resistance between the terminals of the OCV. Standard resistance 6.9 to 7.9 ohms at 20°C (68°F) Apply the positive battery voltage to terminal 1 and negative battery voltage to terminal 2. Check the valve operation. OK Valve moves quickly. Reinstall the OCV. NG --> REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY OK: Go to next step
INSPECT OIL CONTROL VALVE FILTER AND PIPE Remove the No. 1 or No. 2 oil pipe. Remove the oil control valve filter. Check that the filter and pipe are not clogged. OK Filter is not clogged. NG --> CLEAN OIL CONTROL VALVE FILTER AND PIPE OK: Go to next step
REPLACE EXHAUST CAMSHAFT NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Warm up the engine. Switch the ECM from normal mode to check mode using the Techstream. Refer to «CHECK MODE PROCEDURE»(ref-387083-S01377880472011022400000) . Drive the vehicle for more than 10 minutes or more. Read output DTCs using the Techstream. OK No 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 stay registered even if the system returns to normal after a short time. These foreign objects are then captured by the oil, thus eliminating the source of the problem. OK --> SYSTEM OK NG --> REPLACE ECM

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. Refer to FREEZE FRAME DATA .

HINT

Although the DTC titles include oxygen sensor, these DTCs relate to the Air-Fuel Ratio (A/F) sensor.
Sensor 1 refers to the sensor mounted in front of the Three-Way Catalytic Converter (TWC) and located near the engine assembly.
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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .

Scheme 186

Scheme 186: PROCEDURE

Scheme 187

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Scheme 190

INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) Disconnect the E74 or E70 A/F sensor connector. Measure the resistance of the A/F sensor connector. Standard resistance (Bank 1 sensor 1) Tester Connection Condition Specified Condition HA1A (1) - +B (2) 20°C (68°F) 1.8 to 3.4 ohms HA1A (1) - A1A- (4) - 10 kohms or higher Standard resistance (Bank 2 sensor 1) Tester Connection Condition Specified Condition HA2A (1) - +B (2) 20°C (68°F) 1.8 to 3.4 ohms HA2A (1) - A2A- (4) - 10 kohms or higher Reconnect the A/F sensor connector. NG --> REPLACE AIR FUEL RATIO SENSOR OK: Go to next step
CHECK TERMINAL VOLTAGE (+B OF A/F SENSOR) Disconnect the E74 or E70 A/F sensor connector. Turn the power switch on (IG). Measure the voltage between the terminals of the E74 or E70 A/F sensor connector and body ground. Standard voltage (Bank 1 sensor 1) Tester Connection Specified Condition +B (E74-2) - Body ground 9 to 14 V Standard voltage (Bank 2 sensor 1) Tester Connection Specified Condition +B (E70-2) - Body ground 9 to 14 V OK --> See step 5 NG: Go to next step
INSPECT INTEGRATION NO. 1 RELAY (A/F RELAY) Remove the integration relay (Unit C) from the engine room No. 1 junction block. Inspect the A/F fuse. Remove the A/F fuse from the integration relay. Measure the resistance of the A/F fuse. Standard resistance Below 1 ohms Reinstall the A/F fuse. Inspect the A/F relay. Measure the resistance of the A/F relay. Standard resistance Tester Connection Specified Condition 1W-1 - 1U-4 10 kohms or higher Below 1 ohms (Apply battery voltage between terminals 1U-2 and 1U-3) Reinstall the integration relay. NG --> REPLACE INTEGRATION NO. 1 RELAY OK: Go to next step
CHECK HARNESS AND CONNECTOR (A/F SENSOR - INTEGRATION RELAY) Disconnect the E74 or E70 A/F sensor connector. Remove the integration relay (Unit C) from the engine room No. 1 junction block. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition +B (E74-2) - Engine room No. 1 junction block (1U-4) Below 1 ohms +B (E70-2) - Engine room No. 1 junction block (1U-4) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition +B (E74-2) or Engine room No. 1 junction block (1U-4) - Body ground 10 kohms or higher +B (E70-2) or Engine room No. 1 junction block (1U-4) - Body ground 10 kohms or higher Reconnect the A/F sensor connector. Reinstall the integration relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> CHECK ECM POWER SOURCE CIRCUIT
CHECK HARNESS AND CONNECTOR (A/F SENSOR - ECM) Disconnect the E74 or E70 A/F sensor connector. Disconnect the E83 ECM connector. Measure the resistance Standard resistance (Check for open) Tester Connection Specified Condition HA1A (E74-1) - HA1A (E83-86) Below 1 ohms HA2A (E70-1) - HA2A (E83-109) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition HA1A (E74-1) or HA1A (E83-86) - Body ground 10 kohms or higher HA2A (E70-1) or HA2A (E83-109) - Body ground 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
CHECK DTC OUTPUT Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Allow the engine to idle for 1 minute or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to No output A P0031, P0032, P0051 and/or P0052 B B --> REPLACE ECM A --> CHECK FOR INTERMITTENT PROBLEMS

HINT

Sensor 2 refers to the sensor mounted behind the Three-Way Catalytic Converter (TWC) and located far from the engine assembly.
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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .

Scheme 191

Scheme 191: PROCEDURE

Scheme 192

Scheme 193

Scheme 194

INSPECT HEATED OXYGEN SENSOR (HEATER RESISTANCE) Disconnect the K57 or K34 heated oxygen (HO2) sensor connectors. Measure the resistance of the HO2 sensor connector. Standard resistance (Bank 1 sensor 2) Tester Connection Condition Specified Condition HT1B (1) - +B (2) 20°C (68°F) 11 to 16 ohms HT1B (1) - E2 (4) - 10 kohms or higher Standard resistance (Bank 2 sensor 2) Tester Connection Condition Specified Condition HT2B (1) - +B (2) 20°C (68°F) 11 to 16 ohms HT2B (1) - E2 (4) - 10 kohms or higher Reconnect the HO2 sensor connector. NG --> REPLACE HEATED OXYGEN SENSOR OK: Go to next step
CHECK TERMINAL VOLTAGE (+B OF HEATED OXYGEN SENSOR) Disconnect the K57 or K34 heated oxygen (HO2) sensor connectors. Turn the power switch off. Measure the voltage between the terminals of the K57 or K34 HO2 sensor connector and body ground. Standard voltage (Bank 1 sensor 2) Tester Connection Specified Condition +B (K57-2) - Body ground 9 to 14 V Standard voltage (Bank 2 sensor 2) Tester Connection Specified Condition +B (K34-2) - Body ground 9 to 14 V OK --> See step 4 NG: Go to next step
CHECK HARNESS AND CONNECTOR (HEATED OXYGEN SENSOR - EFI NO. 2 FUSE) Disconnect the K57 or K34 heated oxygen (HO2) sensor connectors. Remove the EFI No. 2 fuse from the engine room No. 1 relay block. Measure the resistance. Standard resistance (Check for open) Terminal Connection Specified Condition +B (K57-2) - EFI NO. 2 fuse (2) Below 1 ohms +B (K34-2) - EFI NO. 2 fuse (2) Below 1 ohms Standard resistance (Check for short) Terminal Connection Specified Condition +B (K57-2) or EFI NO. 2 fuse (2) - Body ground 10 kohms or higher +B (K34-2) or EFI NO. 2 fuse (2) - Body ground 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> CHECK ECM POWER SOURCE CIRCUIT
CHECK HARNESS AND CONNECTOR (HEATED OXYGEN SENSOR - ECM) Disconnect the K57 or K34 heated oxygen (HO2) sensor connectors. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance (Check for open) Terminal Connection Specified Condition HT1B (K57-1) - HT1B (E83-63) Below 1 ohms HT2B (K34-1) - HT2B (E83-62) Below 1 ohms Standard resistance (Check for short) Terminal Connection Specified Condition HT1B (K57-1) or HT1B (E83-63) - Body ground 10 kohms or higher HT2B (K34-1) or HT2B (E83-62) - Body ground 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
CHECK WHETHER DTC OUTPUT RECURS Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Allow the engine to idle for 2 minutes or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to No output A P0037, P0038, P0057 and/or P0058 B B --> REPLACE ECM A --> CHECK FOR INTERMITTENT PROBLEMS

HINT

Scheme 195

Scheme 195: PROCEDURE

CHECK FUEL LEAK (HIGH PRESSURE SIDE) Check around and beneath the car for gasoline leaks, fumes, etc. OK No gasoline leaks present. NG --> REPAIR OR REPLACE FUEL SYSTEM OK: Go to next step
CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0087) Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs using the Techstream. Result Display (DTC output) Proceed to P0087 A P0087 and other DTCs B HINT: If any codes other than P0087 are output, perform troubleshooting for those DTCs first. B --> GO TO DTC CHART A: Go to next step
CHECK FUEL PRESSURE (LOW PRESSURE SIDE) Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-387089-S33412487342011022400000) . NG --> See step 12 OK: Go to next step
CHECK MISFIRE COUNT (CYLINDER #1, #2, #3, #4, #5 AND #6) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Direct. (Procedure "A") Allow the engine to idle. Monitor all of the misfire rate values that are displayed on the Techstream (example: CYLINDER #1). If no misfire counts occur for any of the cylinders, perform the following procedure: (Procedure "B") Shift the shift lever to the D position. Repeat procedure "A" to "B" above. Monitor all of the misfire rate values that are displayed on the Techstream (example: CYLINDER #1). Result Misfire Count Proceed to No misfire counts, or misfire counts occur randomly in all cylinders A Misfire counts occur in particular cylinder B B --> REPLACE FUEL INJECTOR FOR DIRECT INJECTION A: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (TARGET FUEL PRESS) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Target Fuel Pressure / Fuel Press. Check that the fuel pressure fluctuates when the target fuel pressure changes. HINT: The TARGET FUEL PRESS operation lowers the target fuel pressure by 12.5% or increase the target fuel pressure by 25%. Result Inspection Result Proceed to The fuel pressure changes the correct amount (exact value) according to target fuel pressure commands from the Techstream A Does not reflect fuel pressure changes B A --> REPLACE ECM B: Go to next step
CHECK FUEL LEAK (FUEL RELIEF VALVE) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Target Fuel Pressure / Fuel Press. Check that the fuel pressure fluctuates when the fuel return hose is pressed with your fingers. Result Inspection Result Proceed to Pressing the hose raises the fuel pressure slightly A Fuel pressure does not fluctuate B A --> See step 10 B: Go to next step
REPLACE FUEL PUMP (FOR HIGH PRESSURE) NEXT: Go to next step
CHECK DTC OUTPUT Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs using the Techstream. Result Display (DTC output) Proceed to P0087 A No output B B --> END A: Go to next step
INSPECT FUEL PRESSURE SENSOR Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Target Fuel Pressure / Fuel Press. Check that the fuel pressure fluctuates when the target fuel pressure changes. HINT: The Control the target Fuel Pressure operation lowers the target fuel pressure by 12.5% or increase the target fuel pressure 25%. OK Fuel pressure fluctuates. NG --> REPLACE FUEL PRESSURE SENSOR OK --> REPLACE ECM
INSPECT FUEL RELIEF VALVE Disconnect the E82 fuel relief valve connector. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Control the Target Fuel Pressure / Fuel Press. Check the fuel pressure before disconnecting and after connecting the fuel relief valve connector. Result Fuel Pressure Proceed to Fuel pressure rises A Fuel pressure does not change B B --> REPLACE FUEL RELIEF VALVE A: Go to next step
INSPECT RELIEF VLV RELAY Remove the RELIEF VLV relay from the engine room No. 1 relay block. Measure the resistance of the fuel relief valve relay. Standard resistance Tester Connection Specified Condition 3 - 5 10 kohms or higher 3 - 5 Below 1 ohms (when battery voltage is applied to terminals 1 and 2) NG --> REPAIR FUEL RELIEF VALVE RELAY OK --> REPLACE ECM
CHECK FUEL PUMP OPERATION Check the fuel pump operation. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-387089-S33412487342011022400000) . NG --> REPLACE FUEL PUMP (LOW PRESSURE SIDE) OK --> CHECK AND REPLACE FUEL SYSTEM (PRESSURE REGULATOR, PIPE LINE AND FILTER)

HINT

Scheme 196

Scheme 196: PROCEDURE

Scheme 197

Scheme 198

CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0088) Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs using the Techstream. Result Display (DTC output) Proceed to P0088 A P0088 and other DTCs B HINT: If any codes other than P0088 are output, perform troubleshooting for those DTCs first. B --> GO TO DTC CHART A: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (FP REL VLV) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Warm up the engine. Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Fuel Press and Coolant Temp and Battery Voltage. NOTE: Coolant Temp value is 50°C (122°F) or more Battery Voltage value is 10 V or more Fuel Press value is 2 MPa or more Turn the power switch off. Wait for 10 seconds. Put the engine in inspection mode. Enter the following menus: Powertrain / Engine and ECT / Data List / Fuel Press. After starting the engine, turn the power switch off within 45 seconds. HINT: Before turning the power switch off, write down the Fuel Press value. Wait for 10 seconds. Then turn the power switch on (IG). Enter the following menus: Powertrain / Engine and ECT / Active Test / Fuel Pressure Relief Valve open / Fuel Press and Coolant Temp and Battery Voltage. Before turning the power switch off, check if the Fuel Press value is stable. HINT: Before performing the Active Test, check that the following conditions are met. Coolant Temp value is 50°C (122°F) or more Battery Voltage value is 10 V or more Fuel Press value is 2 MPa or more Set Fuel Pressure Relief Valve Open to ON and open the fuel relief valve. NOTE: Wait 30 seconds after turning the power switch on (IG). If ON Is selected before 30 seconds have passed, the Active Test will not operate. After selecting ON, the Active Test will turn off automatically after 2 seconds have passed. After ON is selected, ON will not be operable for 60 seconds. After performing the Active Test, check the fuel pressure. Result Inspection Result Proceed to During Active Test, fuel pressure drops A During Active Test, fuel pressure does not change B B --> See step 6 A: Go to next step
REPLACE FUEL PUMP (FOR HIGH PRESSURE) NEXT: Go to next step
CHECK IF DTC OUTPUT REOCCURS (SEE IF DTC P0088 IS OUTPUT AGAIN) Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs using the Techstream. Result Display (DTC output) Proceed to P0088 A No output B B --> END A: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (TARGET FUEL PRESS) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Target Pressure / Fuel Press. Check that the fuel pressure fluctuates when the target fuel pressure changes. HINT: The Control the Target Press operation lowers the target fuel pressure by 12.5% or increase the target fuel pressure 25%. OK Fuel pressure fluctuates. NG --> REPLACE FUEL PRESSURE SENSOR OK --> REPLACE ECM
INSPECT FUSE (RELIEF VLV) Remove the RELIEF VLV fuse from the engine room No. 1 junction block. Check the RELIEF VLV fuse resistance. Standard resistance Below 1 ohms Reinstall the RELIEF VLV fuse. NG --> CHECK FOR SHORT IN ALL HARNESSES AND COMPONENTS CONNECTED TO FUSE OK: Go to next step
INSPECT RELIEF VLV RELAY Remove the RELIEF VLV relay from the engine room No. 1 relay block. Measure the resistance of the fuel relief valve relay. Standard resistance Tester Connection Specified Condition 3 - 5 10 kohms or higher 3 - 5 Below 1 ohms (when battery voltage is applied to terminals 1 and 2) NG --> REPLACE FUEL RELIEF VALVE RELAY OK: Go to next step
CHECK HARNESS AND CONNECTOR (RELIEF VLV RELAY - ECM, RELIEF VLV RELAY - FUEL RELIEF VALVE, FUEL RELIEF VALVE - BODY GROUND) Remove the RELIEF VLV relay from the engine room No. 1 relay block. Disconnect the A53 ECM connector. Disconnect the E82 fuel relief valve connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition RELIEF VLV relay (1) - DSVR (A53-3) Below 1 ohms RELIEF VLV relay (3) - FRI (E82-1) Below 1 ohms FR10 (E82-2) - Body ground Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition RELIEF VLV relay (1) or DSVR (A53-3) - Body ground 10 kohms or higher RELIEF VLV relay (3) or FRI (E82-1) - Body ground 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
REPLACE FUEL RELIEF VALVE NEXT: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (FP REL VLV) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Warm up the engine. Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Fuel Press and Coolant Temp and Battery Voltage. NOTE: Coolant Temp value is 50°C (122°F) or more Battery Voltage value is 10 V or more Fuel Press value is 2 MPa or more Turn the power switch off. Wait for 10 seconds. Put the engine in inspection mode. Enter the following menus: Powertrain / Engine and ECT / Data List / Fuel Press. After starting the engine, turn the power switch off within 45 seconds. HINT: Before turning the power switch off, write down the Fuel Press value. Wait for 10 seconds. Then turn the power switch on (IG). Enter the following menus: Powertrain / Engine and ECT / Active Test / Fuel Pressure Relief Valve Open / Fuel Press and Coolant Temp and Battery Voltage. Before turning the power switch off, check if the Fuel Press value is stable. HINT: Before performing the Active Test, check that the following conditions are met. Coolant Temp value is 50°C (122°F) or more Battery Voltage value is 10 V or more Fuel Press value is 2 MPa or more Set Fuel Pressure Relief Valve Open to ON and open the fuel relief valve. NOTE: Wait 30 seconds after turning the power switch on (IG). If ON is selected before 30 seconds have passed, the Active Test will not operate. After selecting ON, the Active Test will turn off automatically after 2 seconds have passed. After ON is selected, ON will not be operable for 60 seconds. After performing the Active Test, check the fuel pressure. OK Fuel pressure decreases NG --> REPLACE ECM OK --> END

HINT

Scheme 199

Scheme 199: PROCEDURE

Scheme 200

Scheme 201

Scheme 202

Scheme 203

READ VALUE USING TECHSTREAM (MASS AIR FLOW RATE) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / MAF. Read the values displayed on the Techstream. Result Mass Air Flow Rate (g/sec.) Proceed to 0.0 A 271.0 or more B Between 1.0 and 270.0 (*1) C *1: The value must be changed when the throttle valve is open or closed with the engine running. C --> CHECK FOR INTERMITTENT PROBLEMS B --> See step 6 A: Go to next step
INSPECT MASS AIR FLOW METER (POWER SOURCE VOLTAGE) Disconnect the E42 Mass Air Flow (MAF) meter connector. Turn the power switch on (IG). Measure the voltage between the terminal of the wire harness side connector and body ground. Standard voltage Tester Connection Specified Condition +B (E42-1) - Body ground 9 to 14 V Reconnect the MAF meter connector. NG --> See step 5 OK: Go to next step
INSPECT MASS AIR FLOW METER (VG VOLTAGE) Output voltage inspection. Apply battery voltage across terminals +B and E2G. Connect the positive (+) tester probe to terminal VG and negative (-) tester probe to terminal E2G. Measure the voltage. Standard voltage Tester Connection Specified Condition VG (3) - E2G (2) 0.2 to 4.9 V NG --> REPLACE MASS AIR FLOW METER OK: Go to next step
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the E42 MAF meter connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition VG (E42-3) - VG (E83-102) Below 1 ohms E2G (E42-2) - E2G (E83-101) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition VG (E42-3) or VG (E83-102) - Body ground 10 kohms or higher Reconnect the MAF meter connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE ECM
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - EFI NO. 2 FUSE) Disconnect the E42 MAF meter connector. Remove the EFI No. 2 fuse from the engine room No. 1 relay block. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition +B (E42-1) - EFI NO. 2 fuse (2) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition +B (E42-1) or EFI NO. 2 fuse (2) - Body ground 10 kohms or higher Reconnect the MAF meter connector. Reinstall the EFI No. 2 fuse. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> CHECK ECM POWER SOURCE CIRCUIT
CHECK HARNESS AND CONNECTOR (SENSOR GROUND) Disconnect the E42 MAF meter connector. Measure the resistance. Standard resistance Tester Connection Specified Condition E2G (E42-2) - Body ground Below 1 ohms OK --> REPLACE MASS AIR FLOW METER NG: Go to next step
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the E42 MAF meter connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition VG (E42-3) - VG (E83-102) Below 1 ohms E2G (E42-2) - E2G (E83-101) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition VG (E42-3) or VG (E83-102) - Body ground 10 kohms or higher Reconnect the MAF meter connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE ECM

HINT

Read freeze frame data using the Techstream. The ECM records the 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

Scheme 204

Scheme 204: PROCEDURE

Scheme 205

Scheme 206

Scheme 207

READ OUTPUT DTC Connect the Techstream to the DTC3. Turn the power switch on (IG) and turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to P0110 A P0112 B P0113 C C --> See step 3 B --> See step 5 A: Go to next step
READ VALUE USING TECHSTREAM (INTAKE AIR TEMPERATURE) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Intake Air. Read the value displayed on the Techstream. Standard Same as actual Intake Air Temperature (IAT). Result Temperature Displayed Proceed to -40 °C (-40°F) A 140°C (284°F) or higher B Same as actual IAT C HINT: If there is an open circuit, the Techstream indicates -40°C (-40°F). If there is a short circuit, the Techstream indicates 140°C (284°F) or higher. C --> CHECK FOR INTERMITTENT PROBLEMS B --> See step 5 A: Go to next step
READ VALUE USING TECHSTREAM (CHECK FOR OPEN IN WIRE HARNESS) Disconnect the E42 Mass Air Flow (MAF) meter connector. Connect terminals THA and E2 of the MAF meter wire harness side connector. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Intake Air. Read the value displayed on the Techstream. Standard 140°C (284°F) or higher Reconnect the MAF meter connector. OK --> CONFIRM GOOD CONNECTION TO SENSOR. IF OK, REPLACE MASS AIR FLOW METER NG: Go to next step
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the E42 MAF meter connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance Tester Connection Specified Condition THA (E42-4) - THA (E83-55) Below 1 ohms E2 (E42-5) - E3 (E83-97) Below 1 ohms Reconnect the MAF meter connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> CONFIRM GOOD CONNECTION TO ECM. IF OK, REPLACE ECM
READ VALUE USING TECHSTREAM (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the E42 MAF meter connector. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / 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
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) Disconnect the E42 MAF meter connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance Tester Connection Specified Condition THA (E42-4) or THA (E83-55) - Body ground 10 kohms or higher Reconnect the MAF meter connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE ECM

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. Refer to FREEZE FRAME DATA .

HINT

Scheme 208

Scheme 208: PROCEDURE

Scheme 209

Scheme 210

Scheme 211

READ OUTPUT DTC Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to P0115 A P0117 B P0118 C C --> See step 3 B --> See step 5 A: Go to next step
READ VALUE USING TECHSTREAM (ENGINE COOLANT TEMPERATURE) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Coolant Temp. Read the value displayed on the Techstream. Standard Between 75°C and 100°C (167°F and 212°F) with warm engine. Result Temperature Displayed Proceed to -40°C (-40°F) A 140°C (284°F) or higher B Between 80°C and 100°C (176°F and 212°F) C HINT: If there is an open circuit, the Techstream indicates -40°C (-40°F). If there is a short circuit, the Techstream indicates 140°C (284°F) or higher. C --> CHECK FOR INTERMITTENT PROBLEMS B --> See step 5 A: Go to next step
READ VALUE USING TECHSTREAM (CHECK FOR OPEN IN WIRE HARNESS) Disconnect the E71 Engine Coolant Temperature (ECT) sensor connector. Connect terminals 1 and 2 of the ECT sensor connector on the wire harness side. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Coolant Temp. Read the value displayed on the Techstream. Standard 140°C (284°F) or higher. Reconnect the ECT sensor connector. OK --> CONFIRM GOOD CONNECTION TO SENSOR. IF OK, REPLACE ENGINE COOLANT TEMPERATURE SENSOR NG: Go to next step
CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) Disconnect the E71 ECT sensor connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance Tester Connection Specified Condition E71-2 - THW (E83-114) Below 1 ohms E71-1 - E2 (E83-103) Below 1 ohms Reconnect the ECT sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> CONFIRM GOOD CONNECTION TO ECM. IF OK, REPLACE ECM
READ VALUE USING TECHSTREAM (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the E71 ECT sensor connector. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / 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
CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) Disconnect the E71 ECT sensor connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance Tester Connection Specified Condition E71-2 or THW (E83-114) - Body ground 10 kohms or higher Reconnect the ECT sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE ECM

HINT

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

Read freeze frame data using the Techstream. Freeze frame data records the engine conditions when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .

HINT

Scheme 212

Scheme 212: PROCEDURE

Scheme 213

INSPECT ECM (VC VOLTAGE) Disconnect the E39 throttle body connector. Turn the power switch on (IG). Measure the voltage between the terminals of the throttle body connector. Standard voltage Tester Connection Specified Condition VC (E39-5) - E2 (E39-3) 4.5 to 5.5 V Reconnect the throttle body connector. NG --> REPLACE ECM OK: Go to next step
CHECK HARNESS AND CONNECTOR (THROTTLE POSITION SENSOR - ECM) Disconnect the E39 throttle body connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition VC (E39-5) - VC2 (E83-120) Below 1 ohms VTA (E39-6) - VTA1 (E83-80) Below 1 ohms VTA2 (E39-4) - VTA2 (E83-79) Below 1 ohms E2 (E39-3) - E3 (E83-97) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition VC (E39-5) or VC2 (E83-120) - Body ground 10 kohms or higher VTA (E39-6) or VTA1 (E83-80) - Body ground 10 kohms or higher VTA2 (E39-4) or VTA2 (E83-79) - Body ground 10 kohms or higher Reconnect the throttle body connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
REPLACE THROTTLE BODY ASSEMBLY NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (THROTTLE POSITION SENSOR DTCS) Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Allow the engine to idle for 15 seconds or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to P0120, P0122, P0123, P0220, P0222, P0223, and/or P2135 A No output B B --> SYSTEM OK A --> REPLACE ECM

HINT

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.
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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .

HINT

The Techstream only

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 (A/F) sensor, Heated Oxygen (HO2) 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.

Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) .
Connect the Techstream to the DLC3.
Turn the Techstream on.
Warm up the engine.
Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F sensor.
Perform the Control the Injection Volume for A/F sensor 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 A/F and HO2 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 in the fuel injection volume.

Tester Display (Sensor)	Injection Volume	Status	Voltage
AFS Voltage B1S1 or AFS Voltage B2S1 (A/F)	+25%	Rich	Less than 3.1 V
AFS Voltage B1S1 or AFS Voltage B2S1 (A/F)	12.5%	Lean	More than 3.4 V
O2S B1S2 or O2S B2S2 (HO2)	+25%	Rich	More than 0.55 V
O2S B1S2 or O2S B2S2 (HO2)	12.5%	Lean	Less than 0.4 V

Note. The Air-Fuel Ratio (A/F) sensor has an output delay of a few seconds and the Heated Oxygen (HO2) sensor has a maximum output delay of approximately 20 seconds.

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

Scheme 214

Scheme 215

Scheme 216

Following the Control the Injection Volume for A/F sensor procedure enables technicians to check and graph the voltage outputs of both the A/F and HO2 sensors.
To display the graph, enter the following menus: Powertrain / Engine and ECT / Data List /Control the Injection Volume for A/F sensor / AFS Voltage B1S1 or AFS Voltage B2S1 and O2S B1S1 or O2S B2S2 / ; then press the graph button on the Data List view.

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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .
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 217

Scheme 218

Scheme 219

Scheme 220

Scheme 221

READ OUTPUT DTC Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to P0138 or P0158 A P0137 or P0157 B P0136 or P0156 C P0139 or P0159 D D --> See step 16 C --> See step 6 B --> See step 8 A: Go to next step
READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / O2S B1S2 or O2S B2S2. Allow the engine to idle. Read the Heated Oxygen (HO2) sensor output voltage while idling. Result Result Proceed to Higher than 1.0 V A Below 1.0 V B B --> See step 5 A: Go to next step
INSPECT HEATED OXYGEN SENSOR (CHECK FOR SHORT) Disconnect the K57 or K34 HO2 sensor connector. Measure the resistance. Standard resistance (Bank 1 sensor 2) Tester Connection Specified Condition +B (2) - E2 (4) 10 kohms or higher +B (2) - OX1B (3) 10 kohms or higher Standard resistance (Bank 2 sensor 2) Tester Connection Specified Condition +B (2) - E2 (4) 10 kohms or higher +B (2) - OX2B (3) 10 kohms or higher NG --> REPLACE HEATED OXYGEN SENSOR OK: Go to next step
CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT) Turn the power switch off and wait for 5 minutes. Disconnect the E83 and A53 ECM connectors. Measure the resistance. Standard resistance Tester Connection Specified Condition HT1B (E83-63) - OX1B (A53-57) 10 kohms or higher HT2B (E83-62) - OX2B (A53-55) 10 kohms or higher Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE ECM
CHECK AIR FUEL RATIO SENSOR CURRENT 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 Techstream to the DLC3. Turn the power switch on (IG). Turn the tester 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 40 mph (60 km/h) or more and decelerate the vehicle for 5 seconds or more. Repeat the deceleration above at least 3 times. Enter the following menus: Powertrain / Engine and ECT / Monitor / O2 Sensor / Details. Confirm that RANGE B1S1 or RANGE B2S1 is either Pass or Fail. If the tester shows incomplete, re-check RANGE B1S1 or RANGE B2S1 after performing the drive pattern. Select the RANGE B1S1 or RANGE B2S1. Read the Test Value. Standard current Less than 3.0 mA HINT: If the tester 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 14 OK --> See step 12
READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / 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 HO2 sensor when the engine rpm is suddenly increased. Standard voltage Fluctuates between 0.4 V or less and 0.5 V or more. NG --> See step 8 OK: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (INJECTION VOLUME) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume. Change the fuel injection volume using the tester, monitoring the output voltage of Air-Fuel Ratio (A/F) and HO2 sensor 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 A/F sensor is displayed as AFS Voltage B1S1 or AFS Voltage B2S1, and the HO2 sensor is displayed as O2S B1S2 or O2SB2 S2, on the Techstream. Result Tester Display (Sensor) Voltage Variation Proceed to AFS Voltage B1S1 (A/F) AFS Voltage B2S1 (A/F) Alternates between more and less than 3.3 V OK Remains more than 3.3 V NG Remains less than 3.3 V NG HINT: A normal HO2 sensor voltage (O2S B1S2 or O2S B2S2) reacts in accordance with increases and decreases in fuel injection volumes. When the A/F sensor voltage remains either less or more than 3.3 V despite the HO2 sensor indicating a normal reaction, the A/F sensor is malfunctioning. NG --> See step 14 OK --> CHECK EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO AND REPAIR CAUSE (INJECTOR, FUEL PRESSURE, GAS LEAKAGE FROM EXHAUST SYSTEM, ETC.)
CHECK EXHAUST GAS LEAKAGE Check for exhaust gas leakage from the exhaust manifold and pipe. OK No gas leakage. NG --> REPAIR OR REPLACE EXHAUST GAS LEAKAGE POINT OK: Go to next step
INSPECT HEATED OXYGEN SENSOR (HEATER RESISTANCE) Disconnect the K57 or K34 heated oxygen (HO2) sensor connectors. Measure the resistance of the HO2 sensor connector. Standard resistance (Bank 1 sensor 2) Tester Connection Condition Specified Condition HT1B (1) - +B (2) 20°C (68°F) 11 to 16 ohms HT1B (1) - E2 (4) - 10 kohms or higher Standard resistance (Bank 2 sensor 2) Tester Connection Condition Specified Condition HT2B (1) - +B (2) 20°C (68°F) 11 to 16 ohms HT2B (1) - E2 (4) - 10 kohms or higher Reconnect the HO2 sensor connector. NG --> REPLACE HEATED OXYGEN SENSOR OK: Go to next step
INSPECT INTEGRATION NO. 1 RELAY (EFI MAIN RELAY) Remove the integration relay (Unit A) from the engine room No. 1 junction block. Inspect the EFI fuse. Remove the EFI fuse from the integration relay. Measure the resistance of the EFI fuse. Standard resistance Below 1 ohms Reinstall the EFI fuse. Inspect the EFI MAIN relay. Measure the resistance of the EFI MAIN relay. Standard resistance Tester Connection Specified Condition 1R-1 - 1T-8 10 kohms or higher Below 1 ohms (Apply battery voltage between terminals 1T-6 and 1T-7) Reinstall the integration relay. NG --> REPLACE INTEGRATION NO. 1 RELAY OK: Go to next step
CHECK HARNESS AND CONNECTOR (HEATED OXYGEN SENSOR - ECM) See step 4 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
REPLACE HEATED OXYGEN SENSOR Replace the heated oxygen sensor. NEXT: Go to next step
PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Warm up the engine until the engine coolant temperature is 75°C (167°F) or more. Drive the vehicle at 38 to 75 mph (60 to 120 km/h) for 10 minutes. Drive the vehicle at 38 mph (60 km/h) or more and decelerate the vehicle for 5 seconds or more. Perform this 3 times. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input DTCs: P0136, P0137, P0138, P0156, P0157 and P0158. Check that DTC MONITOR is NORMAL. If DTC MONITOR is INCOMPLETE, perform the drive pattern adding the vehicle speed and using the second gear to decelerate the vehicle. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P0136, P0137, P0138, P0156, P0157 or P0158 is output) B B --> REPLACE AIR FUEL RATIO SENSOR A --> END
REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. NEXT: Go to next step
PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Warm up the engine until the engine coolant temperature is 75°C (167°F) or more. Drive the vehicle at 38 to 75 mph (60 to 120 km/h) for 10 minutes. Drive the vehicle at 38 mph (60 km/h) or more and decelerate the vehicle for 5 seconds or more. Perform this 3 times. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input DTCs: P0136, P0137, P0138, P0156, P0157 and P0158. Check that DTC MONITOR is NORMAL. If DTC MONITOR is INCOMPLETE, perform the drive pattern adding the vehicle speed and using the second gear to decelerate the vehicle. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P0136, P0137, P0138, P0156, P0157 or P0158 is output) B B --> REPLACE HEATED OXYGEN SENSOR A --> END
READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / O2S B1S2 or O2S B2S2. Allow the engine to idle. Read the Heated Oxygen (HO2) sensor output voltage while idling. Result Result Proceed to Higher than 1.0 V A Below 1.0 V B B --> See step 19 A: Go to next step
INSPECT HEATED OXYGEN SENSOR (CHECK FOR SHORT) Disconnect the K57 or K34 HO2 sensor connector. Measure the resistance. Standard resistance (Bank 1 sensor 2) Tester Connection Specified Condition +B (2) - E2 (4) 10 kohms or higher +B (2) - OX1B (3) 10 kohms or higher Standard resistance (Bank 2 sensor 2) Tester Connection Specified Condition +B (2) - E2 (4) 10 kohms or higher +B (2) - OX2B (3) 10 kohms or higher NG --> REPLACE HEATED OXYGEN SENSOR OK: Go to next step
CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT) Turn the power switch off and wait for 5 minutes. Disconnect the E83 and A53 ECM connectors. Measure the resistance. Standard resistance Tester Connection Specified Condition HT1B (E83-63) - OX1B (A53-57) 10 kohms or higher HT2B (E83-62) - OX2B (A53-55) 10 kohms or higher Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE ECM
READ VALUE USING TECHSTREAM (DTC P0139 OR P0159 OUTPUT AGAIN) Connect the Techstream to the DLC3. Warm-up the engine until the engine coolant temperature is 75°C (167°F) or more. Drive the vehicle at 38 to 75 mph (60 to 120 km/h) for at 10 minutes. Drive the vehicle 38 mph (60 km/h) or more and decelerate the vehicle for 5 seconds or more. Perform this 3 times. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input DTCs: P0139 and P0159. Check that DTC MONITOR is NORMAL. If DTC MONITOR is INCOMPLETE, perform the driving pattern increasing the vehicle speed and using the second gear to decelerate the vehicle. Result Display (DTC Output) Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P0139 or P0159 is output) B B --> REPLACE HEATED OXYGEN SENSOR A --> CHECK FOR INTERMITTENT PROBLEMS

HINT

Techstream only

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 (A/F) sensor, Heated Oxygen (HO2) 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.

Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) .
Connect the Techstream.
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 and ECT / Active Test / Control the Injection Volume for A/F sensor.
Perform the Control the Injection Volume for A/F sensor operation with the engine in an idling condition (press the RIGHT or LEFT button to change the injection volume).
Monitor the output voltages of the A/F and HO2 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 injection volume by 12.5% or increases the injection volume by 25%.
Each sensor reacts in accordance with increases and decreases in the injection volume.

Tester Display (Sensor)	Injection Volume	Status	Voltage
AFS Voltage B1S1 or AFS Voltage B2S1 (A/F)	+25%	Rich	Less than 3.1 V
AFS Voltage B1S1 or AFS Voltage B2S1 (A/F)	12.5%	Lean	More than 3.4 V
O2S B1S2 or O2S B2S2 (HO2)	+25%	Rich	More than 0.55 V
O2S B1S2 or O2S B2S2 (HO2)	12.5%	Lean	Less than 0.4 V

Note. The Air-Fuel Ratio (A/F) sensor has an output delay of a few seconds and the Heated Oxygen (HO2) sensor has a maximum output delay of approximately 20 seconds.

Following the A/F CONTROL procedure enables technicians to check and graph the voltage outputs of both the A/F and HO2 sensors.
To display the graph, enter the following menus: Powertrain / Engine and ECT / Data List / Control the Injection Volume for A/F sensor / AFS Voltage B1S1 or AFS Voltage B2S1 and O2S B1S1 or O2S B2S2; then press the graph button on the Data List view.

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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .
A low A/F sensor voltage could be caused by a rich air-fuel mixture. Check for conditions that would cause the engine to run rich.
A high A/F sensor voltage could be caused by a rich air-fuel mixture. Check for conditions that would cause the engine to run lean.

Scheme 222

Scheme 222: PROCEDURE

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0171, P0172, P0174 OR P0175) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC output) Proceed to P0171, P0172, P0174 or P0175 A P0171, P0172, P0174 or P0175 and other DTCs B HINT: If any DTCs other than P0171, P0172, P0174 or P0175 are output, troubleshoot those DTCs first. B --> GO TO DTC CHART A: Go to next step
PERFORM SYSTEM CHECK (D-4S TEST) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Port. Read the value Short #1 and Long FT #1 and/or Short FT #2 and Long FT #2. OK Short FT #1(#2) + Long FT #1(#2) = Between -19% and +19% Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Direct. Read the value Short FT #1 and Long FT #1 and/or Short FT #2 and Long FT #2. OK Short FT #1(#2) + Long FT #1(#2) = Between -19% and +19% Result Item Proceed to PORT DIRECT OK OK A OK NG B NG OK C NG NG D C --> See step 22 B --> See step 18 A --> CHECK FOR INTERMITTENT PROBLEMS D: Go to next step
CHECK VENTILATION HOSE OK Ventilation hose is connected correctly and is not damaged. NG --> REPAIR OR REPLACE VENTILATION HOSE OK: Go to next step
CHECK AIR INDUCTION SYSTEM Check the air induction system for vacuum leakage. OK No leakage from air induction system. NG --> REPAIR OR REPLACE AIR INDUCTION SYSTEM OK: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME FOR A/F SENSOR) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F sensor. Perform the Control the Injection Volume for A/F sensor 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 A/F and HO2 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. Tester Display (Sensor) Injection Volume Status Voltage AFS Voltage B1S1 or AFS Voltage B2S1 (A/F) +25% Rich Less than 3.1 V AFS Voltage B1S1 or AFS Voltage B2S1 (A/F) -12.5% Lean More than 3.4 V O2S B1S2 or O2S B2S2 (HO2) +25% Rich More than 0.55 V O2S B1S2 or O2S B2S2 (HO2) -12.5% Lean Less than 0.4 V Result Status AFS Voltage B1S1 or AFS Voltage B2S1 Status O2S B1S2 or O2S B2S2 A/F Condition and A/F Sensor Condition Misfire Suspected Trouble Area Proceed to Lean/Rich Lean/Rich Normal - - A Lean Lean Actual air-fuel ratio lean May occur Ventilation valve and hose Ventilation hose connections Injector for port injection Gas leakage from exhaust system Air induction system Fuel pressure Mass Air Flow (MAF) meter Engine Coolant Temperature (ECT) sensor A Rich Rich Actual air-fuel ratio rich - Gas leakage from exhaust system Ignition system Fuel pressure MAF meter ECT sensor A Lean Lean/Rich A/F sensor malfunction - A/F sensor B Rich Lean/Rich A/F sensor malfunction - A/F sensor B Lean: During Control the Injection Volume for A/F sensor, the A/F sensor output voltage (AFS) is consistently more than 3.4 V, and the HO2 sensor output voltage (O2S) is consistently less than 0.4 V. Rich: During Control the Injection Volume for A/F sensor, the AFS is consistently less than 3.1 V, and the O2S is consistently more than 0.55 V. B --> See step 9 A: Go to next step
READ VALUE USING TECHSTREAM (COOLANT TEMP) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Coolant Temp. Read the Coolant Temp twice, when the engine is both cold and warmed up. Standard With cold engine Same as ambient air temperature. With warm engine Between 75 and 95°C (167 and 203°F) NG --> REPLACE ENGINE COOLANT TEMPERATURE SENSOR OK: Go to next step
INSPECT MASS AIR FLOW METER SUB-ASSEMBLY Inspect the mass air flow meter sub-assembly. NG --> REPLACE MASS AIR FLOW METER OK: Go to next step
CHECK FOR EXHAUST GAS LEAK OK No gas leakage. NG --> REPAIR OR REPLACE EXHAUST SYSTEM OK: Go to next step
INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) See step 1 NG --> REPLACE AIR FUEL RATIO SENSOR OK: Go to next step
INSPECT INTEGRATION NO. 1 RELAY (A/F RELAY) See step 3 NG --> REPLACE INTEGRATION NO. 1 RELAY OK: Go to next step
CHECK HARNESS AND CONNECTOR (A/F SENSOR - ECM) See step 5 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
REPLACE AIR FUEL RATIO SENSOR NEXT: Go to next step
PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Switch the ECM from normal mode to check mode using the Techstream. Refer to «CHECK MODE PROCEDURE»(ref-387083-S01377880472011022400000) . Start the engine and warm it up with all the accessories switched off. (Procedure "A") Drive the vehicle at between 38 mph and 75 mph (60 km/h and 120 km/h) and at an engine speed of between 1400 rpm and 3200 rpm for 3 to 5 minutes. (Procedure "B") HINT: If the system is still malfunctioning, the MIL will be illuminated during procedure "B". 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) On the Techstream, enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC output) Proceed to No output A P0171, P0172, P0174 or P0175 B A --> END B: Go to next step
CHECK FUEL PRESSURE (LOW PRESSURE) Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-387089-S33412487342011022400000) . OK --> REPLACE ECM NG: Go to next step
CHECK FUEL PUMP OPERATION Check the fuel pump operation. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-387089-S33412487342011022400000) . NG --> REPLACE FUEL PUMP OK: Go to next step
CHECK FUEL LEAK (LOW PRESSURE SIDE) OK No leakage NG --> REPAIR OR REPLACE FUEL SYSTEM OK --> CHECK AND REPLACE FUEL PUMP, PRESSURE REGULATOR, FUEL PIPE LINE AND FILTER
CHECK FUEL PRESSURE SENSOR Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Fuel Press. While revving the engine, check that the fuel pressure fluctuates. Standard Idling 3 to 5 MPa 2500 rpm (Depress accelerator pedal fully) 7 to 9 MPa HINT: The A/C switch and all accessory switches should be off, and the shift lever should be in the N or P position, and the engine should be fully warmed up. NG --> REPAIR OR REPLACE FUEL SYSTEM FOR HIGH PRESSURE (REFER TO DTC P0087 AND P0088) OK: Go to next step
PERFORM SYSTEM CHECK (D-4S TEST) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Direct. HINT: The A/C switch and all accessory switches should be off, and the shift lever should be in the N or P position, and the engine should be fully warmed up. Read the value Short FT #1, Long FT #1, Short FT #2, Long FT #2 and Fuel Pump Duty (D4). Result Item Proceed to Fuel Pump Duty (D4) Short FT #1 + Long FT #1 Short FT #2 + Long FT #2 40% or more -20% or less -20% or less A 10% or less +20% or more +20% or more A 40% or more +20% or more +20% or more B 10% or less -20% or less -20% or less C 10% to 40% - - D C --> REPLACE ECM B --> See step 21 A --> REPLACE FUEL PRESSURE SENSOR D: Go to next step
PERFORM SYSTEM CHECK (D-4S TEST) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Direct. HINT: The A/C switch and all accessory switches should be off, and the shift lever should be in the N or P position, and the engine should be fully warmed up. Read the value Short FT #1, Long FT #1, Short FT #2, Long FT #2 and Fuel Pump Duty (D4). Result Item Proceed to Fuel Pump Duty (D4) Short FT #1 + Long FT #1 Short FT #2 + Long FT #2 10% to 40% -25% or less -25% or less A 10% to 40% -25% or less -25% to +25% B 10% to 40% -25% to +25% -25% or less C 10% to 40% +30% or more +30% or more A 10% to 40% +25% or more -25% to +25% B 10% to 40% -25% to +25% +25% or more C 10% to 40% -25% to +25% -25% to +25% D D --> CHECK FOR INTERMITTENT PROBLEMS C --> REPLACE FUEL INJECTOR FOR DIRECT INJECTION (BANK 2) B --> REPLACE FUEL INJECTOR FOR DIRECT INJECTION (BANK 1) A --> REPLACE FUEL INJECTOR FOR DIRECT INJECTION (ALL CYLINDER)
CHECK FUEL RELIEF VALVE Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Fuel Press. Check that the fuel pressure fluctuates when the fuel hose is pressed with your fingers. Result Inspection Result Proceed to Pressing the hose raises the fuel pressure slightly A Fuel pressure does not fluctuate B A --> REPLACE FUEL RELIEF VALVE B --> REPLACE FUEL PUMP FOR HIGH PRESSURE
CHECK FUEL INJECTOR FOR PORT INJECTION Check the injection volume (whether fuel volume is high or low, and whether injection pattern is poor). NG --> REPLACE FUEL INJECTOR FOR PORT INJECTION OK --> REPLACE ECM

HINT

Scheme 223

Scheme 223: PROCEDURE

Scheme 224

READ OUTPUT DTC Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTC. Result Display (DTC output) Proceed to P0190, P0192 A P0190, P0193 B B --> See step 3 A: Go to next step
INSPECT ECM (VC VOLTAGE) Disconnect the E72 fuel pressure sensor connector. Turn the power switch on (IG). Measure the voltage between the terminal of the fuel pressure sensor connector. Standard voltage Tester Connection Specified Condition VC (E72-3) - E2 (E72-1) 4.5 to 5.5 V NG --> See step 4 OK: Go to next step
INSPECT FUEL PRESSURE SENSOR Inspect fuel pressure sensor. Refer to «INSPECTION - Step 1»(ref-387088-S37376061072011022400000) . NG --> REPLACE FUEL PRESSURE SENSOR OK: Go to next step
CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR - ECM) Disconnect the E83 ECM connector. Disconnect the E72 fuel pressure sensor connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition VC (E83-125) - VC (E72-3) Below 1 ohms PR (E83-115) - PR (E72-2) Below 1 ohms E2 (E83-103) - E2 (E72-1) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition VC (E83-125) or VC (E72-3) - Body ground 10 kohms or higher PR (E83-115) or PR (E72-2) - Body ground 10 kohms or higher Reconnect the ECM connector. Reconnect the fuel pressure sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE ECM

HINT

If DTC P0200 has been stored and current to the INJ relay is cut, P1235 will also be stored even if the fuel pump (high pressure side) is functioning normally.
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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .

Scheme 225

Scheme 225: PROCEDURE

Scheme 226

Scheme 227

CLEAR DTC Connect the Techstream tester to the DLC3. Turn the power switch on (IG), and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . HINT: During fail-safe control, waveform does not appear. While DTC P0200 has been stored, current to the INJ relay is cut. NEXT: Go to next step
INSPECT INJECTOR DRIVER (POWER SOURCE OF EDU) Disconnect the E54 injector driver (EDU) connector. Turn the power switch on (IG). Measure the voltage between the terminal of the injector driver (EDU) connector and body ground. Standard voltage Tester Connection Specified Condition +B (E54-1) - Body ground 9 to 14 V +B2 (E54-2) - Body ground 9 to 14 V Reconnect the injector driver (EDU) connector. NG --> CHECK INJECTOR DRIVER (POWER SOURCE CIRCUIT) OK: Go to next step
CHECK HARNESS AND CONNECTOR (EDU - FUEL INJECTOR FOR DIRECT INJECTION) Disconnect the I1 and J1 connectors. Measure the resistance. Standard resistance Tester Connection Condition Specified Condition IJ1+ (I1-2) - IJ1- (I1-5) 20°C (68°F) 2.01 to 2.31 ohms IJ2+ (J1-3) - IJ2- (J1-6) 20°C (68°F) 2.01 to 2.31 ohms IJ3+ (I1-3) - IJ3- (I1-6) 20°C (68°F) 2.01 to 2.31 ohms IJ4+ (J1-1) - IJ4- (J1-4) 20°C (68°F) 2.01 to 2.31 ohms IJ5+ (I1-1) - IJ5- (I1-4) 20°C (68°F) 2.01 to 2.31 ohms IJ6+ (J1-2) - IJ6- (J1-5) 20°C (68°F) 2.01 to 2.31 ohms Reconnect the injector driver (EDU) connector. NG --> See step 7 OK: Go to next step
CHECK HARNESS AND CONNECTOR (ECM - EDU) Disconnect the E83 connector. Disconnect the E53 injector driver (EDU) connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition #1D (E83-40) - #10 (E53-3) Below 1 ohms #2D (E83-37) - #20 (E53-2) Below 1 ohms #3D (E83-39) - #30 (E53-1) Below 1 ohms #4D (E83-36) - #40 (E53-12) Below 1 ohms #5D (E83-38) - #50 (E53-11) Below 1 ohms #6D (E83-35) - #60 (E53-10) Below 1 ohms INJF (E83-34) - INJF (E53-6) Below 1 ohms IJF2 (E83-33) - IJF2 (E53-5) Below 1 ohms IJF3 (E83-32) - IJF3 (E53-4) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition #1D (E83-40) or #10 (E53-3) - Body ground 10 kohms or higher #2D (E83-37) or #20 (E53-2) - Body ground 10 kohms or higher #3D (E83-39) or #30 (E53-1) - Body ground 10 kohms or higher #4D (E83-36) or #40 (E53-12) - Body ground 10 kohms or higher #5D (E83-38) or #50 (E53-11) - Body ground 10 kohms or higher #6D (E83-35) or #60 (E53-10) - Body ground 10 kohms or higher INJF (E83-34) or INJF (E53-6) - Body ground 10 kohms or higher IJF2 (E83-33) or IJF2 (E53-5) - Body ground 10 kohms or higher IJF3 (E83-32) or IJF3 (E53-4) - Body ground 10 kohms or higher Reconnect the ECM connector. Reconnect the injector driver (EDU) connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
REPLACE INJECTOR DRIVER NEXT: Go to next step
CHECK DTC OUTPUT Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to No output A P0200, P0201, P0202, P0203, P0204, P0205 and/or P0206 B B --> REPLACE ECM A --> END
INSPECT FUEL INJECTOR FOR DIRECT INJECTION Check the resistance of the fuel injector (for direct injection). Refer to «INSPECTION»(ref-387088-S02757590572011022400000) . NG --> REPLACE FUEL INJECTOR FOR DIRECT INJECTION OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR

HINT

If any DTCs other than misfire DTCs are output, 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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .
If the misfire does not recur when the vehicle is brought to the workshop, reproduce the conditions stored in the ECM as freeze frame data.
If the misfire still cannot be reproduced even though the conditions stored in the ECM as freeze frame data have been reproduced, one of the following factors is considered to be a possible cause of the problem: There was insufficient fuel in the tank. Improper fuel is used. The spark plugs have been contaminated. The problem requires further diagnosis.
After finishing repairs, check the misfire counts of the cylinders (Cylinder #1to #6 Misfire Count).
Be sure to confirm that no misfiring cylinder DTCs are set again by conducting the confirmation driving pattern after finishing repairs.
For 6 and 8 cylinder engines, the ECM intentionally does not set the specific misfiring cylinder DTCs at high engine RPM. If misfires occur only in high engine RPM areas, only DTC P0300 is set. In the event of DTC P0300 being present, perform the following operations: Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Turn the power switch on (IG) and turn the Techstream on. Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Conduct the confirmation driving pattern. Read the misfiring rates of each cylinder or DTC(s) using the Techstream. Repair the cylinder(s) that has a high misfiring rate or is indicated by the DTC. After finishing repairs, conduct the confirmation driving pattern again, in order to verify that DTC P0300 is not set.
When one of Short FT #1, Long FT #1, Short FT #2 or Long FT #2 in the freeze frame data is outside the range of +-20%, the air-fuel ratio may be Rich (-20% or less) or Lean (+20% or more).
When the Coolant Temp in the freeze frame data is less than 75°C (167°F), the misfire has occurred only while warming up the engine.
An extremely imbalanced drive wheel which causes body vibration may cause misfire DTCs to be detected.

Scheme 228

Scheme 228: PROCEDURE

CHECK ANY OTHER DTC OUTPUT (IN ADDITION TO MISFIRE DTCS) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC output) Proceed to P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 A P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 and other DTCs B HINT: If any DTCs other than P0300, P0301, P0302, P0303, P0304, P0305 and P0306 are output, troubleshoot those DTCs first. B --> GO TO DTC CHART A: Go to next step
READ VALUE USING TECHSTREAM (MISFIRE RPM AND MISFIRE LOAD) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Misfire RPM and Misfire Load. Read and note the Misfire RPM and Misfire Load (engine load) values. HINT: The Misfire RPM and Misfire Load values indicate the vehicle conditions under which the misfire occurred. NEXT: Go to next step
CHECK VENTILATION HOSE (HOSE CONNECTIONS) OK Ventilation hose is connected correctly and is not damaged. NG --> REPAIR OR REPLACE VENTILATION HOSE OK: Go to next step
CHECK MISFIRE COUNT OF PORT INJECTION (CYLINDER #1, #2, #3, #4, #5 AND #6 MISFIRE COUNT) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Port. (Procedure "A") Allow the engine to idle. Monitor all of the misfire rate values that are displayed on the Techstream (example: Cylinder #1 Misfire Count). If no misfire counts occur for any of the cylinders, perform the following procedure: (Procedure "B") Shift the shift lever to the D position. Repeat procedure "A" to "B" above. Monitor all of the misfire rate values that are displayed on the Techstream (example: Cylinder #1 Misfire Count). Result Misfire count Proceed to 1 or 2 cylinders have misfire counts A 3 cylinders or more have misfire counts A There are no misfire counts B B --> See step 16 A: Go to next step
CHECK MISFIRE COUNT OF DIRECT INJECTION (CYLINDER #1, #2, #3, #4, #5 AND #6 MISFIRE COUNT) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Direct. (Procedure "A") Allow the engine to idle. Monitor all of the misfire rate values that are displayed on the Techstream (example: Cylinder #1 Misfire Count). If no misfire counts occur for any of the cylinders, perform the following procedure: (Procedure "B") Shift the shift lever to the D position. Repeat procedure "A" to "B" above. Monitor all of the misfire rate values that are displayed on the Techstream (example: Cylinder #1 Misfire Count). Result Misfire Count Proceed to Port Direct 1 or 2 cylinders have misfire counts 1 or 2 cylinder has misfire counts A 3 cylinders or more have misfire counts 3 cylinders or more have misfire counts B 1 or 2 cylinders have misfire counts There are no misfire counts C 3 cylinders or more have misfire counts There are no misfire counts D D --> See step 14 C --> REPLACE FUEL INJECTOR FOR PORT INJECTION (MISFIRING CYLINDER) B --> See step 10 A: Go to next step
CHECK SPARK PLUG Remove the ignition coil and the spark plug of the misfiring cylinder. Measure the spark plug electrode gap. Standard Between 1.0 mm and 1.4 mm (0.039 in. and 0.055 in.) Check the electrode for carbon deposits. RECOMMENDED SPARK PLUG: Manufacture Product DENSO FK20HBR11 NOTE: If the electrode gap is larger than standard, replace the spark plug. Do not adjust the electrode gap. NG --> REPLACE SPARK PLUG OK: Go to next step
CHECK FOR SPARK AND IGNITION Disconnect the injector connectors, in order to prevent the engine from starting. Install the spark plug to the ignition coil. Attach the spark plug assembly to the cylinder head cover. Crank the engine for less than 2 seconds and check the spark. OK Spark jumps across the electrode gap. Reconnect the injector connectors. NG --> See step 9 OK: Go to next step
CHECK CYLINDER COMPRESSION PRESSURE (MALFUNCTION CYLINDER) Measure the cylinder compression pressure of the misfiring cylinder. OK --> REPLACE ECM NG --> REPAIR OR REPLACE ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION
CHANGE SPARK PLUG Change the installed spark plug to a spark plug that functions normally. Perform a spark test. WARNING: Always disconnect each injector connector. NOTE: Do not crank the engine for more than 2 seconds. Install the spark plug to the ignition coil and connect the ignition coil connector. Disconnect the injector connector. Ground the spark plug. Check if spark occurs while the engine is being cranked. OK Spark jumps across the electrode gap. NG --> REPLACE IGNITION COIL ASSEMBLY THEN CONFIRM THAT THERE IS NO MISFIRE OK --> REPLACE SPARK PLUG
CHECK AIR INDUCTION SYSTEM Check the air induction system for vacuum leakage. OK No leakage from air induction system. NG --> REPAIR OR REPLACE AIR INDUCTION SYSTEM OK: Go to next step
READ VALUE USING TECHSTREAM (COOLANT TEMP) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Coolant Temp. Read the Coolant Temp 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 --> REPLACE ENGINE COOLANT TEMPERATURE SENSOR OK: Go to next step
READ VALUE USING TECHSTREAM (MAF) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / MAF and Coolant Temp. Allow the engine to idle until the Coolant Temp reaches 75°C (167°F) or more. Read the MAF with the engine in an idling condition and at an engine speed of 2500 rpm. Standard MAF while engine idling Between 3.3 g/sec. and 5.3 g/sec. (shift position: P; A/C: off). MAF at an engine speed of 2500 rpm (Depress accelerator pedal fully) Between 10 g/sec. and 16 g/sec. (shift position: P; A/C: off). NG --> REPLACE MASS AIR FLOW METER OK: Go to next step
CHECK VALVE TIMING See step 4 NG --> ADJUST VALVE TIMING OK --> REPLACE ECM
CHECK FUEL PRESSURE (LOW PRESSURE SIDE) Check the fuel pressure (low pressure side). Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-387089-S33412487342011022400000) . OK --> REPLACE FUEL INJECTOR FOR PORT INJECTION NG: Go to next step
CHECK FUEL PUMP OPERATION Check the fuel pump operation. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-387089-S33412487342011022400000) . OK --> CHECK AND REPLACE FUEL SYSTEM (PRESSURE REGULATOR, PIPE LINE AND FILTER) NG --> REPLACE FUEL PUMP
CHECK MISFIRE COUNT OF DIRECT INJECTION (CYLINDER #1, #2, #3, #4, #5 AND #6 MISFIRE COUNT) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Direct. (Procedure "A") Allow the engine to idle. Monitor all of the misfire rate values that are displayed on the Techstream (example: CYL #1). If no misfire counts occur for any of the cylinders, perform the following procedure: (Procedure "B") Shift the shift lever to the D position. Repeat procedure "A" to "B" above. Monitor all of the misfire rate values that are displayed on the Techstream (example: CYL #1). Result Misfire Count Proceed to Port Direct There are no misfire counts 1 or 2 cylinder has misfire counts A There are no misfire counts 3 cylinders or more have misfire counts B There are no misfire counts There are no misfire counts C C --> See step 19 B --> See step 17 A --> REPLACE FUEL INJECTOR FOR DIRECT INJECTION (MISFIRING CYLINDER)
CHECK FUEL PRESSURE SENSOR Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Fuel Press. While revving the engine, check that the fuel pressure fluctuates. Standard Idling 3 to 5 MPa 2500 rpm (Depress accelerator pedal fully) 7 to 9 MPa HINT: The A/C switch and all accessory switches should be off, and the transmission shift lever should be in the N or P position, and the engine should be fully warmed up. NG --> REPAIR OR REPLACE FUEL SYSTEM FOR HIGH PRESSURE (REFER TO DTC P0087 OR P0088) OK: Go to next step
PERFORM SYSTEM CHECK (D-4S TEST) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Direct. HINT: The A/C switch and all accessory switches should be off, and the shift lever should be in the N or P position, and the engine should be fully warmed up. Read the value Short FT #1, Long FT #1, Short FT #2, Long FT #2 and Fuel Pump Duty (D4). Result Item Proceed to Fuel Pump Duty (D4) Short FT #1 + Long FT #1 Short FT #2 + Long FT #2 40% or more -15% or less -15% or less A 10% or less +15% or more +15% or more A 40% or more +15% or more +15% or more B 10% or less -15% or less -15% or less C 10% to 40% - - D D --> REPLACE FUEL INJECTOR FOR DIRECT INJECTION (MALFUNCTION CYLINDER INJECTOR) C --> REPLACE ECM B --> REPLACE FUEL PRESSURE SENSOR A --> REPLACE FUEL PRESSURE SENSOR
CHECK MISFIRE COUNT Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Enter the following menus: Powertrain / Engine and ECT / Data List / Misfire RPM, Misfire Load, Cylinder #1 to #6 Misfire Count and Injection Way. Drive the vehicle with Misfire RPM and Misfire Load noted in step 2. Monitor all of the misfire rate values (example: CYL #1) or DTCs and Injection Way displayed on the Techstream. Result Misfire count Injection Way Proceed to There is no misfire counts - A 1 or 2 cylinder has misfire counts PORT or EITHER B 3 cylinders or more have misfire counts PORT or EITHER C 1 or 2 cylinder has misfire counts DIRECT D 3 cylinders or more have misfire counts DIRECT E E --> See step 17 D --> REPLACE FUEL INJECTOR FOR DIRECT INJECTION (MALFUNCTION CYLINDER INJECTOR) C --> See step 10 B --> See step 6 A --> CHECK FOR INTERMITTENT PROBLEMS

HINT

DTCs P0327 and P0328 are for the bank 1 knock sensor circuit.
DTCs P0332 and P0333 are for the bank 2 knock sensor circuit.
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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .

Scheme 229

Scheme 229: PROCEDURE

Scheme 230

Scheme 231

Scheme 232

Scheme 233

READ OUTPUT DTC (CHECK KNOCK SENSOR CIRCUIT) Disconnect the EH1 connector. Using lead wires, connect the connectors as follows: Male Connector - Female Connector Terminal 4 - Terminal 1 Terminal 5 - Terminal 2 Terminal 1 - Terminal 4 Terminal 2 - Terminal 5 Warm up the engine. Run the engine at 3000 rpm for 10 seconds or more. Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display Proceed to DTC is same as when vehicle brought in (for example, P0327 and P0328 are output again, or P0332 and P0333 are output again) A DTC is different from when vehicle brought in (for example, P0327 and P0328 are output at first, but then P0332 and P0333 are output, or vice versa) B Reconnect the EH1 connector. B --> See step 4 A: Go to next step
CHECK HARNESS AND CONNECTOR (FEMALE CONNECTOR - ECM) Disconnect the EH1 female connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition EH1 female connector 4 - KNK1 (E83-88) Below 1 ohms EH1 female connector 5 - EKNK (E83-87) Below 1 ohms EH1 female connector 1 - KNK2 (E83-111) Below 1 ohms EH1 female connector 2 - EKN2 (E83-110) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition EH1 female connector 4 or KNK1 (E83-88) - Body ground 10 kohms or higher EH1 female connector 5 or EKNK (E83-87) - Body ground 10 kohms or higher EH1 female connector 1 or KNK2 (E83-111) - Body ground 10 kohms or higher EH1 female connector 2 or EKN2 (E83-110) - Body ground 10 kohms or higher Reconnect the EH1 female connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
INSPECT ECM Disconnect the EH1 female connector. Turn the power switch on (IG). Measure the voltage between the terminals of the EH1 female connector. Standard voltage Tester Connection Specified Condition EH1 female connector 4 - 5 4.5 to 5.5 V EH1 female connector 1 - 2 4.5 to 5.5 V NG --> REPLACE ECM OK --> CHECK FOR INTERMITTENT PROBLEMS
INSPECT KNOCK SENSOR Disconnect the EH1 male connector. Measure the resistance. Standard resistance Tester Connection Specified Condition EH1 male connector 4 - 5 120 to 280 kohms EH1 male connector 1 - 2 120 to 280 kohms Reconnect the EH1 male connector. OK --> CHECK FOR INTERMITTENT PROBLEMS NG: Go to next step
CHECK HARNESS AND CONNECTOR (MALE CONNECTOR - KNOCK SENSOR) HINT: If DTC P0327 or P0328 has changed to P0332 or P0333, check the knock sensor circuit on the right bank side. If DTC P0332 or P0333 has changed to P0327 or P0328, check the knock sensor circuit on the left bank side. Disconnect the EH1 male connector. Disconnect the H1 and H2 knock sensor connectors. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition EH1 male connector 4 - H1-2 Below 1 ohms EH1 male connector 5 - H1-1 Below 1 ohms EH1 male connector 1 - H2-2 Below 1 ohms EH1 male connector 2 - H2-1 Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition EH1 male connector 4 or H1-2 - Body ground 10 kohms or higher EH1 male connector 5 or H1-1 - Body ground 10 kohms or higher EH1 male connector 1 or H2-2 - Body ground 10 kohms or higher EH1 male connector 2 or H2-1 - Body ground 10 kohms or higher Reconnect the EH1 male connector. Reconnect the knock sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE KNOCK SENSOR

HINT

If no problem is found through this diagnostic troubleshooting procedure, troubleshooting the engine mechanical systems.
Check the engine speed. The engine speed can be checked by using the Techstream. To check, follow the operation below: Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed. The engine speed may be indicated as zero despite the engine revolving normally. This is caused by a lack of NE signals from the Crankshaft Position (CKP) sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed, if the CKP sensor output voltage is insufficient.
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. Refer to «FREEZE FRAME DATA»(ref-387083-S30119540122011022400000) .

Scheme 234

Scheme 234: PROCEDURE

Scheme 235

Scheme 236

READ VALUE USING TECHSTREAM (ENGINE SPEED) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed. Read the values displayed on the Techstrem while the engine is running. Standard Correct values are displayed. HINT: To check the engine speed change, display the graph on the Techstream. If the engine does not start, check the engine speed while cranking. If the engine speed indicated on the Techstream remains zero (0), there may be an open or short in the Crankshaft Position (CKP) sensor circuit. OK --> CHECK FOR INTERMITTENT PROBLEMS NG: Go to next step
INSPECT CRANKSHAFT POSITION SENSOR (RESISTANCE) Disconnect the E47 CKP sensor connector. Measure the resistance between terminals 1 and 2. Standard resistance Tester Connection Condition Specified Condition 1 - 2 Cold 1630 to 2740 ohms 1 - 2 Hot 2065 to 3225ohms HINT: The terms cold and hot refer to the temperature of the sensor. Cold means approximately -10 to 50°C (14 to 122°F). Hot means approximately 50 to 100°C (122 to 212°F). Reconnect the CKP sensor connector. NG --> REPLACE CRANKSHAFT POSITION SENSOR OK: Go to next step
CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Disconnect the E47 CKP sensor connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition E47-1 - NE+ (E83-69) Below 1 ohms E47-2 - NE- (E83-68) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition E47-1 or NE+ (E83-69) - Body ground 10 kohms or higher E47-2 or NE- (E83-68) - Body ground 10 kohms or higher Reconnect the ECM connector. Reconnect the CKP sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR) Check the CKP sensor installation. OK Sensor is installed correctly. NG --> SECURELY REINSTALL CRANK POSITION SENSOR OK: Go to next step
CHECK CRANKSHAFT POSITION SENSOR PLATE (TEETH OF SENSOR PLATE) Check the teeth of the sensor plate. OK Sensor plate does not have any cracks or deformation. NG --> REPLACE CRANKSHAFT OK: Go to next step
REPLACE CRANKSHAFT POSITION SENSOR NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to No output A P0335 B HINT: If the engine does not start, replace the ECM. B --> REPLACE ECM A --> END

HINT

Scheme 237

Scheme 237: PROCEDURE

Scheme 238

Scheme 239

CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE) Disconnect the E50 or E60 VVT sensor connector. Measure the voltage between the terminal of the VVT sensor connector and body ground. Standard voltage Tester Connection Specified Condition VC (E50-3) - Body ground 4.5 to 5.0 V VC (E60-3) - Body ground 4.5 to 5.0 V Reconnect the VVT sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
CHECK HARNESS AND CONNECTOR (VVT SENSOR FOR INTAKE CAMSHAFT - ECM) Disconnect the E50 or E60 VVT sensor connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition VVR+ (E50-1) - VV1+ (E83-77) Below 1 ohms VVR- (E50-2) - VV1- (E83-76) Below 1 ohms VVL+ (E60-1) - VV2+ (E83-90) Below 1 ohms VVL- (E60-2) - VV2- (E83-89) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition VVR+ (E50-1) or VV1+ (E83-77) - Body ground 10 kohms or higher VVR- (E50-2) or VV1- (E83-76) - Body ground 10 kohms or higher VVL+ (E60-1) or VV2+ (E83-90) - Body ground 10 kohms or higher VVL- (E60-2) or VV2- (E83-89) - Body ground 10 kohms or higher Reconnect the VVT sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
CHECK SENSOR INSTALLATION (VVT SENSOR FOR INTAKE CAMSHAFT) Check the CKP sensor installation. OK Sensor is installed correctly. NG --> SECURELY REINSTALL SENSOR OK: Go to next step
CHECK CAMSHAFT TIMING GEAR ASSEMBLY (TEETH OF PLATE) Check the teeth of the signal plate. OK Sensor plate teeth do not have any cracks or deformation. NG --> REPLACE CAMSHAFT TIMING GEAR ASSEMBLY OK: Go to next step
REPLACE VVT SENSOR NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the DTCs. Result Display (DTC Output) Proceed to No output A P0340, P0342, P0343, P0345, P0347 and/or P0348 B HINT: If the engine does not start, replace the ECM. B --> REPLACE ECM A --> END

HINT

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INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE) Disconnect the E55, E56, E57, E63, E65 or E67 ignition coil connector. Turn the power switch on (IG). Measure the voltage between the terminal of the ignition coil connector and body ground. Standard voltage Tester Connection Specified Condition +B (E55-1) - Body ground 11 to 14 V +B (E56-1) - Body ground 11 to 14 V +B (E57-1) - Body ground 11 to 14 V +B (E63-1) - Body ground 11 to 14 V +B (E65-1) - Body ground 11 to 14 V +B (E67-1) - Body ground 11 to 14 V Measure the resistance between the terminal of the wire harness side connector and body ground. Standard resistance Tester Connection Specified Condition GND (E55-4) - Body ground Below 1 ohms GND (E56-4) - Body ground Below 1 ohms GND (E57-4) - Body ground Below 1 ohms GND (E63-4) - Body ground Below 1 ohms GND (E65-4) - Body ground Below 1 ohms GND (E67-4) - Body ground Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) Disconnect the E55, E56, E57, E63, E65 or E67 ignition coil connector. Disconnect the E83 ECM connectors. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition IGT1 (E55-3) - IGT1 (E83-17) Below 1 ohms IGT2 (E63-3) - IGT2 (E83-14) Below 1 ohms IGT3 (E56-3) - IGT3 (E83-16) Below 1 ohms IGT4 (E65-3) - IGT4 (E83-13) Below 1 ohms IGT5 (E57-3) - IGT5 (E83-15) Below 1 ohms IGT6 (E67-3) - IGT6 (E83-12) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition IGT1 (E55-3) or IGT1 (E83-17) - Body ground 10 kohms or higher IGT2 (E63-3) or IGT2 (E83-14) - Body ground 10 kohms or higher IGT3 (E56-3) or IGT3 (E83-16) - Body ground 10 kohms or higher IGT4 (E65-3) or IGT4 (E83-13) - Body ground 10 kohms or higher IGT5 (E57-3) or IGT5 (E83-15) - Body ground 10 kohms or higher IGT6 (E67-3) or IGT6 (E83-12) - Body ground 10 kohms or higher Standard resistance (Check for open) Tester Connection Specified Condition IGF1 (E55-2) - IGF1 (E83-11) Below 1 ohms IGF2 (E63-2) - IGF2 (E83-10) Below 1 ohms IGF3 (E56-2) - IGF1 (E83-11) Below 1 ohms IGF4 (E65-2) - IGF2 (E83-10) Below 1 ohms IGF5 (E57-2) - IGF1 (E83-11) Below 1 ohms IGF6 (E67-2) - IGF2 (E83-10) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition IGF1 (E55-2) or IGF1 (E83-11) - Body ground 10 kohms or higher IGF2 (E63-2) or IGF2 (E83-10) - Body ground 10 kohms or higher IGF3 (E56-2) or IGF1 (E83-11)- Body ground 10 kohms or higher IGF4 (E65-2) or IGF2 (E83-10) - Body ground 10 kohms or higher IGF5 (E57-2) or IGF1 (E83-11) - Body ground 10 kohms or higher IGF6 (E67-2) or IGF2 (E83-10) - Body ground 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353, P0354, P0355 OR P0356) Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Shuffle arrangement of the ignition coils with igniters (among No. 1 to No. 6 cylinders). NOTE: Do not shuffle the connectors. Perform a simulation test. Check DTCs displayed on the Techstream. Result Display (DTC Output) Proceed to Same DTC output A Different ignition coil DTC output B B --> REPLACE IGNITION COIL ASSEMBLY A --> REPLACE ECM

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CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE) Disconnect the E58 or E66 VVT sensor connector. Measure the voltage between the terminal of the VVT sensor connector and body ground. Standard voltage Tester Connection Specified Condition VC2 (E58-3) - Body ground 4.5 to 5.0 V VC2 (E66-3) - Body ground 4.5 to 5.0 V Reconnect the VVT sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
CHECK HARNESS AND CONNECTOR (VVT SENSOR - ECM) Disconnect the E58 or E66 VVT sensor connector. Disconnect the E83 ECM connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Specified Condition EX+ (E58-1) - EV1+ (E83-100) Below 1 ohms EX- (E58-2) - EV1- (E83-99) Below 1 ohms EX+ (E66-1) - EV2+ (E83-113) Below 1 ohms EX- (E66-2) - EV2- (E83-112) Below 1 ohms Standard resistance (Check for short) Tester Connection Specified Condition EX+ (E58-1) or EV1+ (E83-100) - Body ground 10 kohms or higher EX- (E58-2) or EV1- (E83-99) - Body ground 10 kohms or higher EX+ (E66-1) or EV2+ (E83-113) - Body ground 10 kohms or higher EX- (E66-2) or EV2- (E83-112) - Body ground 10 kohms or higher Reconnect the VVT sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
CHECK SENSOR INSTALLATION (VVT SENSOR FOR EXHAUST CAMSHAFT) Check the VVT sensor installation. OK Sensor is installed correctly. NG --> SECURELY REINSTALL SENSOR OK: Go to next step
CHECK EXHAUST CAMSHAFT Check the teeth of the camshaft. NG --> REPLACE EXHAUST CAMSHAFT OK: Go to next step
REPLACE VVT SENSOR NEXT: Go to next step
CHECK WHETHER DTC OUTPUT RECURS Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387083-S04846376252011022400000) . Put the engine inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-387083-S36792076252011022400000) . Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to No output A P0365, P0352, P0353, P0354, P0355 and/or P0356 B HINT: If the engine does not start, replace the ECM. B --> REPLACE ECM A --> END

Engine Control (Sfi) System (Diagnostic Codes (P0010-P0365)): Diagnosis Lexus GS III рестайлинг

INSPECTION PROCEDURE

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