Inspection Procedure
HINT:
Read freeze frame data using Techstream or the OBD II scan tool. The ECM (included in the hybrid vehicle control ECU) records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, 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.
- CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P3190, P3191 AND/OR P3193)
- Connect Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn Techstream or the OBD II scan tool on.
- On Techstream, select the items: Powertrain / Engine / Trouble Code.
- Read the DTCs using Techstream or the OBD II scan tool.
Result
RESULT CHARTDisplay (DTC output) Proceed to P3190, P3191 and/or P3193 A P3190, P3191 and/or P3193, and other DTCs B HINT:
If any other codes besides P3190, P3191 and/or P3193 are output, perform troubleshooting for those DTCs first.
B: Go to DTC CHART
A: Go to next step
- CHECK FOR FUEL (SHORTAGE OF FUEL)
NG: REFILL FUEL
OK: Go to next step
- CHECK AIR INDUCTION SYSTEM
OK:
The air induction system has no leakage and blockages.
NG: REPAIR OR REPLACE AIR INDUCTION SYSTEM
OK: Go to next step
- CHECK FOR SYMPTOMS
- Check for unusual noise or vibration when starting the engine or when the engine is revving up.
OK:
Unusual noise and vibration do not occur.
NG: REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
OK: Go to next step
- Check for unusual noise or vibration when starting the engine or when the engine is revving up.
- CHECK FUEL PRESSURE
- Check the fuel pressure (See
ON-VEHICLE INSPECTION
).
Standard:
304 to 343 kPa (3.1 to 3.5 kgf/cm 2 , 44.1 to 49.7 psi)
NG: CHECK AND REPLACE FUEL SYSTEM
OK: Go to next step
- Check the fuel pressure (See
ON-VEHICLE INSPECTION
).
- INSPECT MASS AIR FLOW METER ASSEMBLY
- Connect Techstream to the DLC3.
- Turn the power switch on (IG) and turn the tester on.
- Enter the following menus: Powertrain / Engine / Data List / All Data / MAF.
Standard:
0.54 g/s or less
- Inspect resistance.
- Measure the resistance between the terminals of the mass air flow meter.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition THA (1) - E2 (2) 13.6 to 18.4 kΩ at -20°C (-4°F) THA (1) - E2 (2) 2.21 to 2.69 kΩ at 20°C (68°F) THA (1) - E2 (2) 0.49 to 0.67 kΩ at 60°C (140°F)
- Measure the resistance between the terminals of the mass air flow meter.
- Reinstall the mass air flow meter.
NG: REPLACE MASS AIR FLOW METER ASSEMBLY
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: Go to next step
- INSPECT ENGINE COOLANT TEMPERATURE SENSOR
- Remove the engine coolant temperature sensor.
- Measure the resistance between the terminals of the engine coolant temperature sensor.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition 1 - 2 2 to 3 kΩ at 20°C (68°F) 1 - 2 0.2 to 0.4 kΩ at 80°C (176°F) Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE: In case of checking the engine coolant temperature sensor in water, be careful not to allow water to contact the terminals. After checking, dry the sensor.HINT:
Alternate procedure: Connect an ohmmeter to the installed engine coolant temperature sensor and read the resistance. Use an infrared thermometer to measure the engine temperature in the immediate vicinity of the sensor. Compare these values to the resistance/ temperature graph. Change the engine temperature (warm up or allow to cool down) and repeat the test.
- Reinstall the engine coolant temperature sensor.
NG: REPLACE ENGINE COOLANT TEMPERATURE SENSOR
OK: Go to next step
- INSPECT CRANKSHAFT POSITION SENSOR
- Disconnect the C20 crankshaft position sensor connector.
- Measure the resistance between the terminals of the crankshaft position sensor connector.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition 1 - 2 985 to 1,600 Ω at cold 1 - 2 1,265 to 1,890 Ω at hot - Reconnect the crankshaft position sensor connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE: Terms "cold" and "hot" refer to the temperature of the coils. "Cold" means approximately -10°C to 50°C (14°F to 122°F). "Hot" means approximately 50°C to 100°C (122°F to 212°F).NG: REPLACE CRANKSHAFT POSITION SENSOR
OK: Go to next step
- INSPECT CAMSHAFT POSITION SENSOR
- Disconnect the C31 camshaft position sensor connectors.
- Measure the resistance between the terminals of camshaft position sensor connector.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition 1 - 2 1,630 to 2,740 Ω at cold 1 - 2 2,065 to 3, 225 Ω at hot - Reconnect the camshaft position sensor connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE: Terms "cold" and "hot" refer to the temperature of the coils. "Cold" means approximately -10°C to 50°C (14°F to 122°F). "Hot" means approximately 50°C to 100°C (122°F to 212°F).NG: REPLACE CAMSHAFT POSITION SENOR
OK: Go to next step
- INSPECT THROTTLE CONTROL MOTOR
- Disconnect the throttle control motor connector.
- Using an ohmmeter, measure the motor resistance between terminals 1 (M-) and 2 (M+).
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition 1 - 2 0.3 to 100 Ω at 20°C (68°F)
NG: REPLACE THROTTLE BODY ASSEMBLY
OK: Go to next step
- INSPECT THROTTLE POSITION SENSOR
- Connect Techstream to the DLC3.
- Turn the power switch on (IG) and turn Techstream on.
- Enter the following menus: Powertrain / Engine / Data List / Throttle Sens Open Pos #1 and Throttle Sens Open Pos #2.
- Check the values displayed on the tester.
Standard voltage
ITEM CONDITION CHARTItem Condition Specified Condition Throttle Sens Open Pos #1 Throttle fully closed 2.15 to 2.35 V Throttle fully open 4.5 to 5.0 V Throttle Sens Open Pos #2 Throttle fully closed 0.66 to 0.76 V Throttle fully open 3.8 to 4.2 V
NG: REPLACE THROTTLE BODY ASSEMBLY
OK: REPLACE HYBRID VEHICLE CONTROL ECU