Engine Control (Diagnostic Codes (P0010-P0420): Other Lexus HS I

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

Scheme 171

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on.
6. Wait 5 seconds [A].
7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
8. Read the DTCs. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10. Input the DTC: P0010.
11. Check the DTC judgment result [B]. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

Scheme 172

ADVANCED CAMSHAFT TIMING

RETARDED CAMSHAFT TIMING

If the difference between the target and actual camshaft timing is greater than the specified value, the hybrid vehicle control ECU operates the VVT actuator (camshaft timing oil control valve assembly).

Then, the hybrid vehicle control ECU monitors the camshaft timing change for 10 seconds.

MONITOR RESULT

Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .

Scheme 173

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) . HINT: P0011 is output: Clear the DTC without using the Techstream. P0012 is output: Clear the DTC with using the Techstream.
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more [B].
8. Accelerate the vehicle to 47 mph (75 km/h) or more for 10 seconds or more [C]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
9. Idle the engine for 30 seconds or more [D].
10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read the pending DTC [E]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P0011 or P0012.
14. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [F] through [H].
15. Accelerate the vehicle to 47 mph (75 km/h) or more for 10 seconds or more [F].
16. Idle the engine for 30 seconds or more [G].
17. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
18. Input the DTC: P0011 or P0012.
19. Check the DTC judgment result again [H]. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.

P0016

P0016

Scheme 174

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
8. Idle the engine for 5 minutes or more [C].
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
10. Read the pending DTC [D]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P0016.
13. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [E] through [G].
14. Drive the vehicle at 47 mph (75 km/h) for 2 to 3 minutes [E].
15. Idle the engine for 5 minutes or more [F].
16. Check the DTC judgment result [G]. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.

PROCEDURE

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0016) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0016 is output A DTC P0016 and other DTCs are output B HINT: If any DTCs other than P0016 are output, troubleshoot those DTCs first. B --> See step 10 A: Go to next step
2. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE) See step 2 NG --> See step 5 OK: Go to next step
3. CHECK WHETHER DTC OUTPUT RECURS (DTC P0016) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) . Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to DTC is not output A DTC P0016 is output B B --> See step 5 A --> See step 4
4. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-398225-S22017638762011051600000)
5. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY See step 2 NG --> See step 11 OK: Go to next step
6. CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TEETH ON TIMING CHAIN) See step 6 NG --> See step 12 OK: Go to next step
7. INSPECT OIL CONTROL VALVE FILTER See step 7 NG --> See step 13 OK: Go to next step
8. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY Replace the camshaft timing gear assembly. Refer to «REMOVAL»(ref-398215-S26066177622011051600000) . NEXT: Go to next step
9. CHECK WHETHER DTC OUTPUT RECURS (DTC P0016) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) . Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to DTC is not output A DTC P0016 is output B B --> See step 14 A --> END
10. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000)
11. REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY. Refer to «REMOVAL»(ref-398228-S42274326952011051600000)
12. ADJUST VALVE TIMING. Refer to «REMOVAL»(ref-398215-S26066177622011051600000)
13. REPLACE OIL CONTROL VALVE FILTER. Refer to «DISASSEMBLY - Step 40»(ref-398215-S22599542442011051600000)
14. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to «REMOVAL»(ref-398232-S36824664312011051600000)

P0031

P0032

P101D

P0031

P0032

P101D

P0031

P0032

P101D

Scheme 175

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine and idle it for 5 minutes or more [B].
8. With the vehicle stationary, depress the accelerator pedal and maintain an engine speed of 2500 rpm for 1 minute [C].
9. Idle the engine for 5 minutes or more [D].
10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
11. Read the DTC [E]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P0031, P0032, or P101D.
14. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
15. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] through [E] again.

Scheme 176

ALL

P0037 (CASE 1)

P0037 (CASE 2)

P0038

P0141 (CASE 1)

P0141 (CASE 2)

P102D

P0037 (CASE 1)

P0037 (CASE 2)

P0038

P0141

P102D

1. Refer to Checking Monitor Status. Refer to «CHECKING MONITOR STATUS»(ref-398225-S00584894102011051600000) .

Scheme 177

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine and idle it for 5 minutes or more [B].
8. With the vehicle stationary, depress the accelerator pedal and maintain an engine speed of 2500 rpm for 1 minute [C].
9. Idle the engine for 5 minutes or more [D].
10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read the pending DTC [E]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P0037, P0038, P0141 or P102D.
14. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
15. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] through [E] again.

Scheme 178

Scheme 179

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
5. Turn the power switch off and wait for at least 30 seconds.
6. Turn the power switch on (IG) and turn the Techstream on.
7. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
8. Start the engine and warm it up until the engine coolant temperature reaches 70°C (158°F) or more [A].
9. Drive the vehicle at approximately 50 mph (80 km/h) to 70 mph (112 km/h) for 5 minutes or more [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Drive while keeping the engine load as stable as possible.
10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read the pending DTCs [C]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P0101.
14. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit
15. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] and [C] again.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0101) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0101 is output A DTC P0101 and other DTCs are output B HINT: If any DTCs other than P0101 are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-398230-S02616932982011051600000) . OK No leaks from the intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
3. CHECK PCV HOSE CONNECTIONS Check the PCV hose connections. OK PCV hose is connected correctly and is not damaged. NG --> REPAIR OR REPLACE PCV HOSE OK --> See step 5
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000)
5. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL»(ref-398228-S12654782472011051600000)

P0102

P0103

Scheme 180

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine.
8. Idle the engine for 5 seconds [B].
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
10. Read the pending DTC [C]. HINT: If a pending DTC is outputs, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P0102 or P0103.
13. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
14. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.

Scheme 181

Scheme 182

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine and warm it up (until the engine coolant temperature is 75°C (167°F) or higher) [B].
8. Move the shift lever to N.
9. Idle the engine for 10 seconds or more [C].
10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read Pending DTC [D]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P0106.
14. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
15. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [C] through [D] again.

1. CHECK ANY OTHER DTC OUTPUT (IN ADDITION TO P0106) 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 Result Proceed to DTC P0106 is output A DTC P0106 and other DTCs are output B HINT: If any DTCs other than P0106 are output, troubleshoot those DTCs first. B --> See step 6 A: Go to next step
2. READ VALUE USING TECHSTREAM (MANIFOLD ABSOLUTE PRESSURE SENSOR) Connect the Techstream to the DLC3. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) . Turn the Techstream on. Start the engine and warm it up. Enter the following menus: Powertrain / Engine and ECT / Data List / MAP. Read the MAP value at engine idling. Standard Engine Condition Techstream Display Power switch on (IG) 80 to 110 kPa-a (600 to 825 mmHg-a) Idling 20 to 40 kPa-a (150 to 300 mmHg-a) NG --> See step 3 OK --> See step 5
3. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-398230-S02616932982011051600000) . OK No leaks in the intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK --> See step 4
4. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR. Refer to «REMOVAL»(ref-398220-S31851525082011051600000)
5. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-398225-S22017638762011051600000)
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000)

P0107

P0108

Scheme 183

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine.
8. Idle the engine for 5 seconds [B].
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
10. Read the DTC [C]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P0107 or P0108.
13. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit
14. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.

Scheme 184

ALL

AFTER ENGINE STOP

AFTER COLD ENGINE START

AFTER ENGINE STOP

AFTER COLD ENGINE START

Scheme 185

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
8. Idle the engine for 5 minutes or more [C]. HINT: During steps [A] through [C], if the change in the intake air temperature is below 1°C (1.8°F), the intake air temperature sensor (mass air flow meter sub-assembly) is malfunctioning. It is not necessary to continue this procedure.
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
10. Read the pending DTC [D]. HINT: If a pending DTC is outputs, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P0111.
13. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [E] and [F].
14. Drive the vehicle at 25 mph (40 km/h) or more for a total of 5 minutes or more [E].
15. Check the DTC judgment result again [F]. HINT: If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [E] and [F] again.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0111) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0111 and other DTCs are output A DTC P0111 is output B HINT: If any DTCs other than P0111 are output, troubleshoot those DTCs first. B --> See step 3 A --> See step 2
2. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000)
3. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL»(ref-398228-S12654782472011051600000)

P0112

P0113

Scheme 186

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on.
6. Wait 0.5 seconds or more [A].
7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
8. Read the DTC [B]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10. Input the DTC: P0112 or P0113.
11. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

Scheme 187

P0115

P0117

P0118

Scheme 188

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on.
6. Wait 0.5 seconds or more [A].
7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
8. Read the DTC [B]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10. Input the DTC: P0115, P0117 or P0118.
11. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

Scheme 189

ENGINE COOLANT TEMPERATURE SENSOR COLD START MONITOR

ENGINE COOLANT TEMPERATURE SENSOR SOAK MONITOR

ENGINE COOLANT TEMPERATURE SENSOR COLD START MONITOR

ENGINE COOLANT TEMPERATURE SENSOR SOAK MONITOR

Scheme 190

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Coolant Temp.
4. Check that the engine coolant temperature is 60°C (140°F) or less.
5. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
6. Turn the power switch off and wait for at least 30 seconds.
7. Turn the power switch on (IG) and turn the Techstream on [A].
8. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
9. Start the engine and idle it for 5 minutes or more [B]. HINT: If the engine coolant temperature does not change by 5°C (9°F) or higher, the engine coolant temperature sensor is malfunctioning. It is not necessary to continue this procedure.
10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read the pending DTC [C]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P0116.
14. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [D] and [E].
15. Drive the vehicle at 25 mph (40 km/h) or more for a total of 5 minutes or more [D]. HINT: In the event of the drive pattern being interrupted (possibly due to factors such as traffic conditions), the drive pattern can be resumed.
16. Check the DTC judgment result again [E]. HINT: If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [D] and [E] again.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0116) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0116 is output A DTC P0116 and other DTCs are output B HINT: If any DTCs other than P0116 are output, troubleshoot those DTCs first. B --> See step 3 A: Go to next step
2. INSPECT THERMOSTAT Remove the thermostat. Refer to «REMOVAL»(ref-398217-S20197114652011051600000) . Measure the valve opening temperature of the thermostat. Standard value 80 to 84°C (176 to 183°F) HINT: In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard. Reinstall the thermostat. Refer to «INSTALLATION»(ref-398217-S18552336912011051600000) . NG --> See step 4 OK --> See step 5
3. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000)
4. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-398217-S20197114652011051600000)
5. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-398228-S30093668762011051600000)

Scheme 191

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) [A].
4. Turn the power switch off.
5. With the engine stopped, leave the vehicle as is for 7.5 hours or more [B].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine and wait 60 seconds or more [C].
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
9. Read the pending DTC [D]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11. Input the DTC: P011B.
12. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [A] through [D] again.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P011B) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P011B is output A DTC P011B and other DTCs are output B HINT: If any DTCs other than P011B are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. READ VALUE USING TECHSTREAM (INTAKE AIR TEMPERATURE) Leave the vehicle for 7 hours or more. HINT: It is necessary to leave the vehicle for 7 hours or more to allow conditions similar to the DTC detection conditions. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Intake Air. Read the value displayed on the Techstream. OK The difference between the intake air temperature and the actual outside air temperature is within 10°C (18°F). HINT: Temperature readings on the vehicle's outside temperature gauge (if equipped) are not suitable for comparing to the intake air temperature reading. The outside temperature gauge has a significant delay built in to prevent temperature swings from being displayed on its display. Use an accurate thermometer to determine the outside air temperature. NG --> See step 5 OK: Go to next step
3. READ VALUE USING TECHSTREAM (COOLANT TEMPERATURE) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Coolant Temp. Read the value displayed on the Techstream. OK The difference between the coolant temperature and the actual outside air temperature is within 10°C (18°F). HINT: If the result is not as specified, check if there are heat sources such as a block heater in the engine compartment. NG --> See step 7 OK --> See step 6
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000)
5. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL»(ref-398228-S12654782472011051600000)
6. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to «REMOVAL»(ref-398232-S36824664312011051600000)
7. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-398228-S30093668762011051600000)

P0120, P0122, P0123, P0220, P0222, P0223, P2135

P0121

P0120

P0121

P0122

P0123

P0220

P0222

P0223

P2135 CASE 1

P2135 CASE 2

Scheme 192

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine.
8. With the vehicle stationary, fully depress and release the accelerator pedal [B].
9. Idle the engine for 2 seconds or more [C].
10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
11. Read the DTC [D]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P0120, P0121, P0122, P0123, P0220, P0222, P0223 or P2135.
14. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.

FAIL-SAFE

When any of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions, are set, the hybrid vehicle control ECU enters fail-safe mode. During fail-safe mode, the hybrid vehicle control ECU cuts the current to the throttle actuator, and the throttle valve is returned to a 6.5° throttle angle by the return spring. The hybrid vehicle control ECU stops the engine and the vehicle can be driven using solely the hybrid system. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.

Fail-safe mode continues until a pass condition is detected, and the power switch is then turned off.

Scheme 193

Scheme 194

1. Leave the vehicle outside overnight.
2. Connect the Techstream to the DLC3.
3. Turn the power switch on (IG) and turn the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Data List / Coolant Temp.
5. Check that the engine coolant temperature is 5°C (41°F) or less.
6. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
7. Turn the power switch off and wait for at least 30 seconds.
8. Turn the power switch on (IG) and turn the Techstream on [A].
9. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
10. Start the engine.
11. After starting the engine, wait 21 minutes or more [B].
12. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
13. Read the pending DTC [C]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
14. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
15. Input the DTC: P0125.
16. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0125) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0125 is output A DTC P0125 and other DTCs are output B HINT: If any DTCs other than P0125 are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. INSPECT THERMOSTAT Remove the thermostat. Refer to «REMOVAL»(ref-398217-S20197114652011051600000) . Check the valve opening temperature of the thermostat. Standard value 80 to 84°C (176 to 183°F) HINT: In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard. Reinstall the thermostat. Refer to «INSTALLATION»(ref-398217-S18552336912011051600000) . NG --> See step 5 OK: Go to next step
3. CHECK COOLING SYSTEM Check for defects in the cooling system that might cause the system to be too cold, such as abnormal radiator fan operation or any modifications. NG --> REPAIR OR REPLACE COOLING SYSTEM OK --> See step 6
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000)
5. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-398217-S20197114652011051600000)
6. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-398228-S30093668762011051600000)

Scheme 195

1. Stop the engine and allow it to cool down.
2. Connect the Techstream to the DLC3.
3. Turn the power switch on (IG) and turn the Techstream on. [A]
4. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
5. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Coolant Temp and Intake Air.
6. Check if "Coolant Temp" is 56°C (133°F) or less and "Intake Air" is between 0 and 35°C (32 and 95°F).
7. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
8. Set the heater to the maximum hot setting with fresh air mode selected and turn the A/C off.
9. Start the engine and drive the vehicle at 50 mph (80 km/h) for 15 minutes. [B] WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Data can be captured relatively easily by using the snapshot function in the Data List. Enter the following menus: Data List / Function / Snap-shot configuration / Record time / 5 min. Data capture can be started by using the target point. For example, setting the target point to an engine speed of 2500 rpm and then racing the engine, etc. to raise the engine speed to a speed of 2500 rpm or more will cause data capture to start.
10. After driving the vehicle at 50 mph (80 km/h) and "Coolant Temp" stabilizes, check that "Coolant Temp" is 75°C (67°F) or higher. [C]

HINT

If "Coolant Temp" is below 75°C (167°F) while driving the vehicle at 50 mph (80 km/h), inspect the cooling system and thermostat.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0128) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0128 is output A DTC P0128 and other DTCs are output B HINT: If any DTCs other than P0128 are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. CHECK COOLING SYSTEM Check for defects in the cooling system that might cause the system to be too cold, such as abnormal radiator fan operation or any modifications. NG --> REPAIR OR REPLACE COOLING SYSTEM OK: Go to next step
3. INSPECT THERMOSTAT Remove the thermostat. Refer to «REMOVAL»(ref-398217-S20197114652011051600000) . Measure the valve opening temperature of the thermostat. Standard value 80 to 84°C (176 to 183°F) HINT: In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard. Reinstall the thermostat. Refer to «INSTALLATION»(ref-398217-S18552336912011051600000) . NG --> See step 5 OK --> See step 6
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000)
5. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-398217-S20197114652011051600000)
6. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to «REMOVAL»(ref-398232-S36824664312011051600000)

ALL

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (OUTPUT VOLTAGE, HIGH VOLTAGE AND LOW VOLTAGE)

HEATED OXYGEN SENSOR IMPEDANCE (LOW IMPEDANCE)

HEATED OXYGEN SENSOR IMPEDANCE (HIGH IMPEDANCE)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (EXTREMELY HIGH)

HEATED OXYGEN SENSOR VOLTAGE DURING FUEL-CUT

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (OUTPUT VOLTAGE)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (LOW VOLTAGE)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (HIGH VOLTAGE)

HEATED OXYGEN SENSOR IMPEDANCE (LOW IMPEDANCE)

HEATED OXYGEN SENSOR IMPEDANCE (HIGH IMPEDANCE)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (EXTREMELY HIGH)

HEATED OXYGEN SENSOR VOLTAGE DURING FUEL-CUT

Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .

CONFIRMATION DRIVING PATTERN

P0136, P0137 and P0138

Scheme 196

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
8. Drive the vehicle at 47 to 75 mph (75 to 120 km/h) for 10 minutes or more [C]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
10. Read the pending DTC [D]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P0136, P0137 or P0138.
13. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
14. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [C] though [D] again.

P0139

Scheme 197

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
8. Drive the vehicle at 47 mph (75 km/h), and then decelerate the vehicle by releasing the accelerator pedal for 6 seconds or more to perform the fuel-cut [C]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
10. Read the pending DTC [D]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P0139.
13. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows INCOMPLETE or UNKNOWN, move the shift lever to B and then perform [C] and [D] again.

FUEL-TRIM

FUEL-TRIM

Scheme 198

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine and warm it up (until the engine coolant temperature is 75°C (167°F) or higher) with all the accessories switched off [B].
8. With the engine warmed up, idle the engine for 2 minutes or more [C].
9. Drive the vehicle at between 47 and 75 mph (75 and 120 km/h) and at an engine speed of between 1400 and 3200 rpm for 5 minutes or more [D]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
11. Read the pending DTC [E]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
13. Input the DTC: P0171 or P0172.
14. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
15. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [C] through [E] again.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0171 OR P0172) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0171 or P0172 is output A DTC P0171 or P0172 and other DTCs are output B HINT: If any DTCs other than P0171 or P0172 are output, troubleshoot those DTCs first. B --> See step 23 A: Go to next step
2. CHECK PCV HOSE CONNECTIONS Check the PCV hose connections. OK PCV hose is connected correctly and is not damaged. NG --> REPAIR OR REPLACE PCV HOSE OK: Go to next step
3. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION»(ref-398230-S12813372942011051600000) . OK No leaks in the intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
4. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME) Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) . Start the engine. 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 idling (press the RIGHT or LEFT button to change the fuel injection volume). Monitor the voltage outputs of the air fuel ratio sensor and the heated oxygen sensor (AFS Voltage B1S1 and O2S B1S2) 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. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds. Standard Techstream Display (Sensor) Injection Volume Status Voltage AFS Voltage B1S1 (Air fuel ratio) +25% Rich Less than 3.1 V -12.5% Lean More than 3.4 V O2S B1S2 (Heated oxygen) +25% Rich More than 0.55 V -12.5% Lean Less than 0.4 V Result Status AFS Voltage B1S1 Status O2S B1S2 Air Fuel Ratio Condition and Air Fuel Ratio Sensor Condition Misfire Suspected Trouble Area Proceed to Lean Lean Actual air fuel ratio lean May occur PCV valve and hose PCV hose connections Injector blockage Gas leaks from exhaust system Intake system Fuel pressure Mass air flow meter Engine coolant temperature sensor A Rich Rich Actual air fuel ratio rich - Injector leak or blockage Gas leaks from exhaust system Ignition system Fuel pressure Mass air flow meter Engine coolant temperature sensor Lean Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Rich Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor Lean/Rich Lean/Rich Normal - - C Lean: During Control the Injection Volume for A/F Sensor, the air fuel ratio sensor output voltage (AFS Voltage B1S1) is consistently higher than 3.4 V, and the heated oxygen sensor output voltage (O2S B1S2) is consistently below 0.4 V. Rich: During Control the Injection Volume for A/F Sensor, the AFS Voltage B1S1 is consistently below 3.1 V, and the O2S B1S2 is consistently higher than 0.55 V. Lean/Rich: During Control the Injection Volume for A/F Sensor of the Active Test, the output voltage of the heated oxygen sensor alternates correctly. C --> See step 21 B --> See step 11 A: Go to next step
5. 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 / All Data / Coolant Temp. Read the Data List twice, when the engine is both cold and warmed up. Standard value With cold engine: Same as ambient air temperature. With warm engine: 80 to 100°C (176 to 212°F). NG --> See step 24 OK: Go to next step
6. INSPECT MASS AIR FLOW METER Inspect the mass air flow meter See step 4 . NG --> See step 25 OK: Go to next step
7. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-398233-S24986668062011051600000) . NG --> REPAIR OR REPLACE FUEL SYSTEM OK: Go to next step
8. INSPECT FOR EXHAUST GAS LEAK Inspect for exhaust gas leaks. OK No gas leaks. NG --> REPAIR OR REPLACE EXHAUST SYSTEM OK: Go to next step
9. CHECK SPARK AND IGNITION HINT: Refer to the ignition system inspection procedure. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-398218-S14737801732011051600000) . If the spark plugs or ignition system malfunctions, engine misfire may occur. The misfire count can be read using the Techstream. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Cylinder #1 Misfire Count (to Cylinder #4 Misfire Count). NG --> REPAIR OR REPLACE IGNITION SYSTEM OK: Go to next step
10. INSPECT FUEL INJECTOR ASSEMBLY (INJECTION AND VOLUME) HINT: Refer to the fuel injector inspection procedure. Refer to «INSPECTION»(ref-398229-S38217131622011051600000) . If the injectors malfunction, engine misfire may occur. The misfire count can be read using the Techstream. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Cylinder #1 Misfire Count (to Cylinder #4 Misfire Count). NG --> See step 26 OK --> See step 21
11. INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) See step 1 NG --> See step 27 OK: Go to next step
12. CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR FUEL RATIO SENSOR) See step 2 NG --> See step 17 OK: Go to next step
13. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - HYBRID VEHICLE CONTROL ECU). Refer to «PROCEDURE - Step 11»(ref-398226-S37436521942011051600000) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
14. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-398228-S39900601942011051600000) . NEXT: Go to next step
15. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Clear the DTCs (even if no DTCs are stored, perform the Clear DTC procedure). Turn the power switch off and wait for 30 seconds. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) . Start the engine and warm it up (until the engine coolant temperature is 75°C (167°F) or higher) with all the accessories switched off. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. NEXT: Go to next step
16. CHECK WHETHER DTC OUTPUT RECURS (DTC P0171 OR P0172) Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P0171 or P0172. Check the DTC judgment. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P0171 or P0172 is output) B B --> See step 28 A --> END
17. INSPECT INTEGRATION RELAY (EFI MAIN RELAY) Inspect the integration relay. Refer to «INSPECTION - Step 1»(ref-398228-S17880478372011051600000) . NG --> See step 29 OK: Go to next step
18. CHECK HARNESS AND CONNECTOR (EFI MAIN RELAY - AIR FUEL RATIO SENSOR) See step 6 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
19. CHECK HARNESS AND CONNECTOR (EFI MAIN RELAY - IGCT RELAY) See step 7 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
20. CHECK HARNESS AND CONNECTOR (EFI MAIN RELAY - BODY GROUND) See step 8 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - EFI MAIN RELAY)
21. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Clear the DTCs (even if no DTCs are stored, perform the Clear DTC procedure). Turn the power switch off and wait for 30 seconds. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) . Start the engine and warm it up (until the engine coolant temperature is 75°C (167°F) or higher) with all the accessories switched off. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. NEXT: Go to next step
22. CHECK WHETHER DTC OUTPUT RECURS (DTC P0171 OR P0172) Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P0171 or P0172. Check the DTC judgment. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P0171 or P0172 is output) B B --> See step 28 A --> See step 30
23. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000)
24. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-398228-S30093668762011051600000)
25. REPLACE MASS AIR FLOW METER. Refer to «REMOVAL»(ref-398228-S12654782472011051600000)
26. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-398229-S34024863372011051600000)
27. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-398228-S39900601942011051600000)
28. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to «REMOVAL»(ref-398232-S36824664312011051600000)
29. REPLACE INTEGRATION RELAY. Refer to «REMOVAL»(ref-398228-S32500819222011051600000)
30. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-398225-S22017638762011051600000)

MISFIRE

MONITOR PERIOD OF EMISSION-RELATED MISFIRE

MONITOR PERIOD OF CATALYST-DAMAGING MISFIRE (MIL BLINKS)

MONITOR PERIOD OF EMISSION-RELATED MISFIRE

MONITOR PERIOD OF CATALYST-DAMAGING MISFIRE (MIL BLINKS)

Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .

Scheme 199

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Record the DTC(s) and freeze frame data.
5. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
6. Using the Techstream, switch the hybrid vehicle control ECU from normal mode to check mode. Refer to «CHECK MODE PROCEDURE»(ref-398225-S06565800662011051600000) .
7. Read the misfire counts of each cylinder, Cylinder #1 Misfire Count to Cylinder #4 Misfire Count, with the engine idling. If any misfire count is displayed, skip the following confirmation driving pattern.
8. Drive the vehicle several times with the conditions, such as engine speed and engine load, shown in Misfire RPM and Misfire Load in the Data List. HINT: In order to store misfire DTCs, it is necessary to operate the vehicle for the period of time shown in the table below. Confirm the Misfire RPM and Misfire Load in the Data List. Engine Speed Duration Idling 5 minutes or more 1000 4 minutes or more 1500 3 minutes or more 2500 2 minutes or more
9. Check whether misfires have occurred by checking DTCs and freeze frame data. HINT: Do not turn the power switch off until the output DTC(s) and freeze frame data have been recorded. When the hybrid vehicle control ECU returns to normal mode (default), the stored DTC(s), freeze frame data and other data are cleared.
10. Record the DTC(s), freeze frame data and misfire counts.
11. Turn the power switch off and wait for at least 5 seconds.

KNOCK CONTROL SENSOR RANGE CHECK (LOW VOLTAGE) P0327

KNOCK CONTROL SENSOR RANGE CHECK (HIGH VOLTAGE) P0328

Scheme 200

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine and wait 10 seconds.
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
9. Read the DTC [B]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11. Input the DTC: P0327 or P0328.
12. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
13. If the judgment result shows INCOMPLETE or UNKNOWN, idle the engine for 5 minutes and check the DTC judgment result again [C].

Scheme 201

ALL

CASE 1

CASE 2

CASE 1

CASE 2

Scheme 202

Scheme 203

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine.
8. Idle the engine for 20 seconds or more [B].
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
10. Read the DTC [C]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P0335.
13. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.

ALL

Scheme 204

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine.
8. Idle the engine for 10 seconds or more [B].
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
10. Read the DTC [C]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P0340.
13. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.

1. INSPECT CAMSHAFT POSITION SENSOR (RESISTANCE) Inspect the camshaft position sensor. Refer to «INSPECTION»(ref-398228-S22117860722011051600000) . NG --> See step 8 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - HYBRID VEHICLE CONTROL ECU) Disconnect the camshaft position sensor connector. Disconnect the hybrid vehicle control ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition C20-1 - C28-55 (G2+) Always Below 1 ohms C20-2 - C28-54 (G2-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition C20-1 or C28-55 (G2+) - Body ground Always 10 kohms or higher C20-2 or C28-54 (G2-) - Body ground Always 10 kohms or higher Reconnect the hybrid vehicle control ECU connector. Reconnect the camshaft position sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR) Check the camshaft position sensor installation. OK Sensor is installed correctly. NG --> See step 9 OK: Go to next step
4. CHECK VALVE TIMING See step 6 NG --> See step 10 OK: Go to next step
5. INSPECT INTAKE CAMSHAFT Check the teeth of the timing rotor of the intake camshaft. OK Timing rotor does not have any cracks or deformation. NG --> See step 11 OK: Go to next step
6. REPLACE CAMSHAFT POSITION SENSOR Replace the camshaft position sensor. Refer to «REMOVAL»(ref-398228-S19400721632011051600000) . NEXT: Go to next step
7. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) . Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) . Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A DTC P0340 is output B HINT: If the engine does not start, replace the hybrid vehicle control ECU. B --> See step 12 A --> END
8. REPLACE CAMSHAFT POSITION SENSOR. Refer to «REMOVAL»(ref-398228-S19400721632011051600000)
9. SECURELY REINSTALL CAMSHAFT POSITION SENSOR. Refer to «INSTALLATION»(ref-398228-S16770036372011051600000)
10. ADJUST VALVE TIMING. Refer to «REMOVAL»(ref-398215-S26066177622011051600000)
11. REPLACE INTAKE CAMSHAFT. Refer to «REMOVAL»(ref-398215-S26066177622011051600000)
12. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to «REMOVAL»(ref-398232-S36824664312011051600000)

Scheme 205

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-398225-S11190546532011051600000) .
4. Turn the power switch off and wait for at least 30 seconds.
5. Turn the power switch on (IG) and turn the Techstream on [A].
6. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
7. Start the engine.
8. Idle the engine for 10 seconds or more [B].
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
10. Read the DTC [C]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P0351, P0352, P0353 or P0354.
13. Check the DTC judgment result. Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.

Scheme 206

Scheme 207

Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .

HINT

Performing this confirmation driving pattern will activate the catalyst monitor. This is very useful for verifying the completion of a repair.

Scheme 208

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Clear the DTCs.
5. Turn the power switch off.
6. Turn the power switch on (IG) and turn the Techstream on.
7. Enter the following menus: Powertrain / Engine / Monitor.
8. Check that Catalyst Efficiency / Status2 is Incomplete.
9. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) .
10. Start the engine and warm it up (until the engine coolant temperature is 75°C (167°F) or higher) [A].
11. Drive the vehicle at between 47 and 75 mph (75 and 120 km/h) for at least 10 minutes or more [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
12. Those items will change to Complete after completing the driving pattern.
13. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
14. Check if any DTCs (pending DTCs) are set.

HINT

If Catalyst does not change to Complete, and no pending DTCs are stored, extend the driving time.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0420) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0420 is output A DTC P0420 and other DTCs are output B HINT: If any DTCs other than P0420 are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME FOR A/F SENSOR) Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-398089-S21258796492011051600000) . Start the engine and warm it up. Run the engine at an engine speed of 2500 rpm for approximately 90 seconds. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor. Perform the Active Test operation with the engine idling (press the RIGHT or LEFT button to change the fuel injection volume). Monitor the voltage outputs of the air fuel ratio sensor and heated oxygen sensor (AFS Voltage B1S1 and O2S B1S2) 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. Standard Techstream Display (Sensor) Injection Volume Status Voltage AFS Voltage B1 S1 (Air fuel ratio) +25% Rich Less than 3.1 V -12.5% Lean More than 3.4 V O2S B1 S2 (Heated oxygen) +25% Rich More than 0.55 V -12.5% Lean Less than 0.4 V Result Status AFS Voltage B1 S1 Status O2S B1 S2 Air Fuel Ratio Condition and Air Fuel Ratio and Heated Oxygen Sensors Condition Misfire Main Suspected Trouble Area Proceed to Lean/Rich Lean/Rich Normal - Three-way catalytic converter Gas leaks from exhaust system A Lean Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Rich Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor Lean/Rich Lean Heated oxygen sensor malfunction - Heated oxygen sensor Gas leaks from exhaust system C Lean/Rich Rich Heated oxygen sensor malfunction - Heated oxygen sensor Gas leaks from exhaust system Lean Lean Actual air fuel ratio lean May occur Extremely rich or lean actual air fuel ratio Gas leaks from exhaust system D Rich Rich Actual air fuel ratio rich - Extremely rich or lean actual air fuel ratio Gas leaks from exhaust system Lean: During Control the Injection Volume for A/F Sensor, the air fuel ratio sensor output voltage (AFS Voltage B1S1) is consistently higher than 3.4 V, and the heated oxygen sensor output voltage (O2S B1S2) is consistently below 0.4 V. Rich: During Control the Injection Volume for A/F Sensor, the AFS Voltage B1S1 is consistently below 3.1 V, and the O2S B1S2 is consistently higher than 0.55 V. Lean/Rich: During Control the Injection Volume for A/F Sensor of the Active Test, the output voltage of the heated oxygen sensor alternates correctly. D --> See step 6 C --> See step 9 B --> See step 5 A: Go to next step
3. INSPECT FOR EXHAUST GAS LEAK Inspect for exhaust gas leaks. OK No gas leaks. NG --> REPAIR OR REPLACE EXHAUST GAS LEAK POINT OK: Go to next step
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398225-S07453478932011051600000)
5. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-398228-S39900601942011051600000)
6. GO TO NEXT STEP AFTER CHECKING ENGINE TO DETERMINE CAUSE OF EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO. Refer to «DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1)»(ref-398227-S19521690262011051600000)
7. REPLACE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY (TWC: FRONT CATALYST) Replace the exhaust manifold converter sub-assembly (TWC: Front catalyst). Refer to «COMPONENTS»(ref-398234-S39746434962011051600000) . NEXT --> See step 8
8. REPLACE CENTER EXHAUST PIPE ASSEMBLY (TWC: REAR CATALYST). Refer to «COMPONENTS»(ref-398234-S07455741482011051600000)
9. INSPECT FOR EXHAUST GAS LEAK Inspect for exhaust gas leaks. OK No gas leaks. NG --> REPAIR OR REPLACE EXHAUST GAS LEAK POINT OK --> See step 10
10. REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-398228-S03267976182011051600000)