Engine Control (diagnostic Codes (p0705-p1605) Lexus IS F I

DESCRIPTION

The park / neutral position switch detects the shift lever position and sends signals to the ECM.

MONITOR DESCRIPTION

These DTCs indicate a problem with the park/neutral position switch and the wire harness in the park/neutral position switch circuit.

The park/neutral position switch detects the shift lever position and sends a signal to the ECM.

For security, the park/neutral position switch detects the shift lever position so that engine can be started only when the shift lever is in P or N.

The park/neutral position switch sends a signal to the ECM according to the shift position (P, R, N, D, or M). The ECM determines that there is a problem with the switch or related parts if it receives more than 1 position signal simultaneously. The ECM will turn on the MIL and store the DTC.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

ALL

CONDITION (B)

TYPICAL MALFUNCTION THRESHOLDS

1. One of the following conditions is met: Condition (A), (B) and (C) CONDITION (A) Any two of the following conditions are met: Conditions A, B and C A. One of the following condition is met: Conditions (a), (b) or (c) (a). Park position switch ON (b). Neutral position switch ON (c). Park neutral position switch ON B. R range position switch ON C. D range position switch ON CONDITION (B) M range position switch ON CONDITION (C) Park position switch OFF Neutral position switch OFF Park neutral position switch OFF R range position switch OFF D range position switch OFF

COMPONENT OPERATING RANGE

Scheme 441

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) .
4. Turn the engine switch off and wait for 30 seconds.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Wait 10 minutes or more.
7. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
8. Read the pending DTC [B]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
9. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
10. Input the DTC: P0705.
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'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 sows INCOMPLETE or UNKNOWN, perform step [A] again.
12. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
13. Check the DTC judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
14. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 442

INSPECTION PROCEDURE

1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensor, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may by discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time. NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. Warm up the engine. Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List. According to the display on the Techstream. Tester Display Measurement Item/Range Normal Condition Diagnostic Note Shift SW Status (R Range) Park/neutral position switch status/ ON or OFF Shift lever is: R: ON Except R: OFF When shift lever position displayed on the Techstream differs from actual position, adjustment of park/neutral position switch or shift cable may be incorrect Shift SW Status (P Range) Park/neutral position switch status/ ON or OFF Shift lever is: P: ON Except P: OFF When shift lever position displayed on the Techstream differs from actual position, adjustment of park/neutral position switch or shift cable may be incorrect Shift SW Status (N Range) Park/neutral position switch status/ ON or OFF Shift lever is: N: ON Except N: OFF When shift lever position displayed on the Techstream differs from actual position, adjustment of park/neutral position switch or shift cable may be incorrect Shift SW Status (D Range) Park/neutral position switch status/ ON or OFF Shift lever is: D or M: ON Except D or M: OFF When shift lever position displayed on the Techstream differs from actual position, adjustment of park/neutral position switch or shift cable may be incorrect Sports Mode Selection SW Sport mode select switch status/ ON or OFF Shift lever is: In M, "+" and "-": ON Except in M, "+" and "-": OFF

Scheme 443

Scheme 444

1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List. According to the display on the Techstream. OK Tester Display Shift Lever Position Specified Condition Neutral Position SW Signal N --> R --> P ON --> OFF --> ON Shift SW Status (R Range) N --> R OFF --> ON Shift SW Status (P Range) P ON Shift SW Status (N Range) N ON Shift SW Status (D Range) N --> D OFF --> ON NG --> See step 5 OK: Go to next step
2. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List. According to the display on the Techstream. OK Tester Display Shift Lever Position Specified Condition Sports Mode Selection SW D --> M OFF --> ON NG --> See step 3 OK --> See step 8
3. INSPECT TRANSMISSION CONTROL SWITCH Disconnect the transmission control switch connector of the shift lock control unit assembly. Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position. Standard Resistance Tester Connection Shift Lever Position Condition Specified Condition J43-3 (IG) - J43-7 (S) M, "+" and "-" Always Below 1 ohms Except M, "+" and "-" Always 10 kohms or higher Reconnect the transmission control switch connector. NG --> REPLACE TRANSMISSION CONTROL SWITCH OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (ECM CONNECTOR - TRANSMISSION CONTROL SWITCH) Disconnect the ECM connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Shift Lever Position Switch Condition Specified Condition A6-16 (S) - Body ground M, "+" and "-" Engine switch on (IG) 11 to 14 V* Except M, "+" and "-" Engine switch on (IG) 0 to 1.5 V* HINT: *: The voltage will drop slightly due to the turning on of the back up light. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM CONNECTOR - TRANSMISSION CONTROL SWITCH) OK --> See step 9
5. CHECK HARNESS AND CONNECTOR (BATTERY - PARK/NEUTRAL POSITION SWITCH) Disconnect the park/neutral position switch connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E45-2 (RB) - Body ground Engine switch on (IG) 11 to 14 V Reconnect the park/neutral position switch connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - PARK/NEUTRAL POSITION SWITCH) OK: Go to next step
6. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY Disconnect the park/neutral position switch connector. Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position. Standard Resistance Tester Connection Shift Lever Position Specified Condition 2 (RB) - 6 (PL) 4 (B) - 5 (L) P Below 1 ohms Except P 10 kohms or higher 1 (RL) - 2 (RB) R Below 1 ohms Except R 10 kohms or higher 2 (RB) - 9 (NL) 4 (B) - 5 (L) N Below 1 ohms Except N 10 kohms or higher 2 (RB) - 7 (DL) D, M, "+" and "-" Below 1 ohms Except D, M, "+" and "-" 10 kohms or higher Reconnect the park/neutral position switch connector. NG --> See step 10 OK: Go to next step
7. CHECK HARNESS AND CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH) Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Shift Lever Position Switch Condition Specified Condition A6-29 (NSW) - E6-1 (E1) P or N Engine switch on (IG) 0 to 1.5 V Except P or N Engine switch on (IG) 11 to 14 V Turn the engine switch off. Disconnect the ECM connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Shift Lever Position Switch Condition Specified Condition E6-12 (P) - E6-1 (E1) P Engine switch on (IG) 11 to 14 V Except P Engine switch on (IG) 0 to 1.5 V E6-11 (R) - E6-1 (E1) R Engine switch on (IG) 11 to 14 V Except R Engine switch on (IG) 0 to 1.5 V E6-13 (N) - E6-1 (E1) N Engine switch on (IG) 11 to 14 V Except N Engine switch on (IG) 0 to 1.5 V E6-14 (D) - E6-1 (E1) D Engine switch on (IG) 11 to 14 V Except D Engine switch on (IG) 0 to 1.5 V Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH) OK --> See step 9
8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__check-for-intermittent-problems)
9. REPLACE ECM. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
10. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/automatic-trans/#automatic-transmission-service-information)

The purpose of this circuit is to prevent the engine from stalling, while driving in lock-up condition, when brakes are suddenly applied.

When the brake pedal is depressed, this switch sends a signal to the ECM. Then the ECM cancels the operation of the lock-up clutch while braking is in progress.

This DTC indicates that the stop light switch remains ON. When the stop light switch remains ON during "stop and go" driving, the ECM interprets this as a malfunction in the stop light switch and the MIL comes on and the ECM stores the DTC. The vehicle must stop (less than 1.86 mph [3 km/h]) and go (18.65 mph [30 km/h] or more) 5 times during 2 driving cycles, in order to detect a malfunction.

The stop light switch remains ON during GO and STOP 5 times.

GO AND STOP ARE DEFINED AS FOLLOWS

Scheme 445

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) .
4. Turn the engine switch off and wait for 30 seconds.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Wait 5 seconds.
7. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
8. Read the pending DTC [B]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
9. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
10. Input the DTC: P0724.
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 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 [C] through [E].
12. Start the engine [C].
13. Accelerate the vehicle to 18.6 mph (30 km/h) or more, depress the brake pedal and decelerate the vehicle to 1.8 mph (3 km/h) or less [D]. Repeat step [D] 5 times. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
14. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
15. Check the DTC judgment result [E]. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
16. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

WIRING DIAGRAM

Refer to DTC P0504. Refer to WIRING DIAGRAM .

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.

PROCEDURE

1. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH) Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Stop Light Switch. Read the values displayed on the Techstream. OK Item Measurement Item: Range (display) Normal Condition Stop Light Switch Stop light switch status: ON or OFF ON: Brake pedal is depressed OFF: Brake pedal is released NG --> See step 2 OK --> See step 4
2. INSPECT STOP LIGHT SWITCH ASSEMBLY. Refer to «PROCEDURE - Step 3»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostic-codes-p0201-p0657) NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - ECM) Disconnect the stop light switch connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Short) Tester Connection Condition Specified Condition A22-1 or A5-13 (STP) - Body ground Always 10 kohms or higher A22-3 or A5-12 (ST1-) - Body ground Always Reconnect the stop light switch connector and ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (STOP LIGHT SWITCH - ECM) OK --> See step 6
4. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__check-for-intermittent-problems)
5. REPLACE STOP LIGHT SWITCH ASSEMBLY. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/exterior-lights/#lighting-exterior-service-information)
6. REPLACE ECM. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)

Refer to DTC P0010. Refer to DESCRIPTION .

This DTC is output when a malfunction in the intake side camshaft timing control motor's rotation sensor is detected. The camshaft timing control motor is equipped with a self diagnostic function, which is used to output the duty ratio (when normal: 80%) as a signal (VTM) to the ECM. If the ECM receives a duty signal of 40%, a DTC is output immediately (1 trip detection logic). If the engine is idled for 10 seconds, a DTC is detected.

Scheme 446

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) .
4. Turn the engine switch off and wait for 30 seconds.
5. Turn the engine switch on (IG) and turn the Techstream on.
6. Wait 10 seconds [A].
7. Enter the following menus: Powertrain / Engine / 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 / Utility / All Readiness.
10. Input the DTC: P1023 or P2614.
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 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 sows INCOMPLETE or UNKNOWN, perform step [A] again.
12. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
13. Check the DTC judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
14. If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

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.

1. REPLACE CAMSHAFT TIMING CONTROL MOTOR (BANK 1 AND/OR BANK 2) Replace the camshaft timing control motor. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . NEXT: Go to next step
2. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Clear the DTC. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . Start the engine and idle it for 10 seconds. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to No output A Other DTCs B B --> See step 3 A --> END
3. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__diagnostic-trouble-code-chart)

The fuel pump for high pressure is attached to the insulator, which is attached to the cylinder head cover. The pump activates according to the position of the cam on the intake side camshaft (bank 1 and bank 2).

The fuel pump for high pressure increases the pressure of the fuel supplied from the fuel pump in the fuel tank to 4 to 13 MPa (40.8 to 132.6 kgf/cm 2 , 580 to 1885 psi) according to the operating condition, and it feeds the fuel to the fuel delivery pipe.

Scheme 447

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) .
4. Turn the engine switch off and wait for 30 seconds.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 10 seconds [B].
8. Enter the following menus: Powertrain / Engine / Trouble Codes.
9. Read the DTC [C]. 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 / Utility / All Readiness.
11. Input the DTC: P1235 and P1236.
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'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 step [B] again.
13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
14. Check the DTC judgment result. 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 test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 448

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

Scheme 449

Scheme 450

1. CHECK DTC Interchange the injector driver No. 1 and No. 2. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/fuel-system/#fuel-service-information) . Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . NOTE: Before clearing the DTCs, write them down. Start the engine. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Display (DTC Output) Proceed to DTCs do not change A DTCs change (change in malfunctioning cylinder or EDU code) B B --> See step 5 A: Go to next step
2. INSPECT SPILL CONTROL VALVE Disconnect the spill control valve connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 1.19 to 1.39 ohms Reconnect the spill control valve connector. NG --> See step 6 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (INJECTOR DRIVER - SPILL CONTROL VALVE) Disconnect the injector driver connector. Disconnect the spill control valve connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) INJECTOR DRIVER (NO. 1) Tester Connection Condition Specified Condition E27-1 (FP+) - E76-1 Always Below 54 mohms E27-4 (FP-) - E76-2 Always Below 54 mohms INJECTOR DRIVER (NO. 2) Tester Connection Condition Specified Condition E68-1 (FP2+) - E71-1 Always Below 54 mohms E68-4 (FP2-) - E71-2 Always Below 54 mohms Standard Resistance (Check for Short) INJECTOR DRIVER (NO. 1) Tester Connection Condition Specified Condition E27-1 (FP+) or E76-1 - Engine ground Always 10 kohms or more E27-4 (FP-) or E76-2 - Engine ground Always 10 kohms or more INJECTOR DRIVER (NO. 2) Tester Connection Condition Specified Condition E68-1 (FP2+) or E71-1 - Engine ground Always 10 kohms or more E68-4 (FP2-) or E71-2 - Engine ground Always 10 kohms or more Reconnect the injector driver connector and spill control valve connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INJECTOR DRIVER - SPILL CONTROL VALVE) OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (INJECTOR DRIVER - ECM) Disconnect the injector driver (No. 1) connector. Disconnect the injector driver (No. 2) connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition E26-8 (FPD) - E5-11 (FPD) Always Below 1 ohms E26-7 (FPF) - E5-10 (FPF1) Always Below 1 ohms E67-8 (FPD2) - E5-13 (FPD2) Always Below 1 ohms E67-7 (FPF2) - E5-12 (FPF2) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition E26-8 (FPD) or E5-11 (FPD) - Body ground Always 10 kohms or higher E26-7 (FPF) or E5-10 (FPF1) - Body ground Always 10 kohms or higher E67-8 (FPD2) or E5-13 (FPD2) - Body ground Always 10 kohms or higher E67-7 (FPF2) or E5-12 (FPF2) - Body ground Always 10 kohms or higher Reconnect the injector driver connectors and ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INJECTOR DRIVER - ECM) OK --> See step 7
5. REPLACE INJECTOR DRIVER. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/fuel-system/#fuel-service-information)
6. REPLACE FUEL PUMP ASSEMBLY FOR HIGH PRESSURE. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/fuel-system/#fuel-service-information)
7. REPLACE ECM. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)

The D-4S system has two injection systems. One is the in-cylinder direct injection system that directly injects pressurized fuel into the combustion chamber. The other is the intake port injection system. The ECM determines the percentage of in-cylinder direct injection to the intake port injection systems in accordance with the engine speed and load.

The ECM monitors the injection control of the port injector. If a malfunction is detected in the port injector circuit, the ECM cancels the injection control for the corresponding cylinder and turns on the MIL.

CONFIRMATION DRIVING PATTERN

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) .
4. Turn the engine switch off and wait for 30 seconds.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 10 seconds [B].
8. Enter the following menus: Powertrain / Engine / Trouble Codes.
9. Read the DTC [C]. 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 / Utility / All Readiness.
11. Input the DTC: P1276, P1277, P1278, P1279, P127A, P127B, P127C or P127D.
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'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 step [B] again.
13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
14. Check the DTC judgment result. 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 test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 451

Scheme 452

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

Scheme 453

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P1276, P1277, P1278, P1279, P127A, P127B, P127C OR P127D) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Start the engine. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P1276, P1277, P1278, P1279, P127A, P127B, P127C or P127D is output A DTC P1276, P1277, P1278, P1279, P127A or P127B and other DTCs are output B HINT: If any DTCs other than P1276, P1277, P1278, P1279, P127A, P127B, P127C or P127D are output, troubleshoot those DTCs first. B --> See step 6 A: Go to next step
2. CHECK FUEL INJECTOR FOR PORT INJECTION (POWER SOURCE VOLTAGE) Disconnect the fuel injector for port injection connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition I9-2 - Body ground Engine switch on (IG) 11 to 14 V I10-2 - Body ground Engine switch on (IG) 11 to 14 V I11-2 - Body ground Engine switch on (IG) 11 to 14 V I12-2 - Body ground Engine switch on (IG) 11 to 14 V H9-2 - Body ground Engine switch on (IG) 11 to 14 V H10-2 - Body ground Engine switch on (IG) 11 to 14 V H11-2 - Body ground Engine switch on (IG) 11 to 14 V H12-2 - Body ground Engine switch on (IG) 11 to 14 V Reconnect the injector connector. NG --> CHECK AND REPAIR HARNESS OR CONNECTOR (IG2 FUSE - INJECTOR FOR PORT INJECTION) OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (ECM - FUEL INJECTOR FOR PORT INJECTION) Disconnect the fuel injector for port injection connector. Disconnect the ECM connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition I9-1 - E5-17 (#10) Always Below 1 ohms H9-1 - E4-11 (#20) Always Below 1 ohms I10-1 - E5-16 (#30) Always Below 1 ohms H10-1 - E4-10 (#40) Always Below 1 ohms I11-1 - E5-15 (#50) Always Below 1 ohms H11-1 - E4-9 (#60) Always Below 1 ohms I12-1 - E5-14 (#70) Always Below 1 ohms H12-1 - E4-8 (#80) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition I9-1 or E5-17 (#10) - Body ground Always 10 kohms or higher H9-1 or E4-11 (#20) - Body ground Always 10 kohms or higher I10-1 or E5-16 (#30) - Body ground Always 10 kohms or higher H10-1 or E4-10 (#40) - Body ground Always 10 kohms or higher I11-1 or E5-15 (#50) - Body ground Always 10 kohms or higher H11-1 or E4-9 (#60) - Body ground Always 10 kohms or higher I12-1 or E5-14 (#70) - Body ground Always 10 kohms or higher H12-1 or E4-8 (#80) - Body ground Always 10 kohms or higher Reconnect the injector connector and ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - FUEL INJECTION FOR PORT INJECTION) OK: Go to next step
4. CHECK FUEL INJECTOR FOR PORT INJECTION (RESISTANCE) Check the fuel injector for port injection resistance. Refer to «INSPECTION»(/lexus/is-f/i-2007-2014/remont/fuel-system/#fuel-service-information) . NG --> See step 7 OK --> See step 5
5. REPLACE ECM. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__diagnostic-trouble-code-chart)
7. REPLACE FUEL INJECTOR FOR PORT INJECTION. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/fuel-system/#fuel-service-information__removal)

The camshaft position sensor system consists of a signal plate (installed on the camshaft timing gear RH) and magnetic resistance element type cam position sensor. The signal plate has 3 protrusions. When it rotates, the magnetic vector (direction of magnetic field) applied to the camshaft's magnetic resistance element varies, which causes its resistance to vary. This varying resistance is converted to voltage, and then modified into a rectangular waveform with Hi (approximately 4 V) and Lo (approximately 1 V) outputs. As a result, the G2 signal is output to the ECM. The ECM uses the G2 signal to distinguish between the cylinders and detect the camshaft position.

Scheme 454

1. Reference: Inspection using an oscilloscope. HINT: The correct waveform is as shown. The wavelength becomes shorter as the engine speed increases. G2+ and G2- stand for the camshaft position sensor signal. Item Content Terminal G2+ - G2- Equipment Setting 5 V/DIV., 20 msec./DIV. Condition Cranking or idling

If there is no signal from the camshaft position sensor even though the engine is turning, or if the rotation of the camshaft and the crankshaft is not synchronized, the ECM interprets this as a malfunction of the sensor.

When the sensor output voltage remains less than 0.3 V, or more than 4.7 V for more than 4 seconds, the ECM sets a DTC.

ALL

P1340 CASE 1

P1340 CASE 2

P1342, P1343 (CAMSHAFT POSITION SENSOR RANGE CHECK [LOW VOLTAGE, HIGH VOLTAGE])

P1340 CASE 1

P1340 CASE 2

P1342 (CAMSHAFT POSITION SENSOR RANGE CHECK [LOW VOLTAGE])

P1343 (CAMSHAFT POSITION SENSOR RANGE CHECK [HIGH VOLTAGE])

Scheme 455

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) .
4. Turn the engine switch off and wait for 30 seconds.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 10 seconds or more [B].
8. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
9. 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.
10. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
11. Input the DTC: P1340, P1342 or P1343.
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 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 step [B] again.
13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
14. Check the DTC judgment result. 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 test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 456

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

Scheme 457

Scheme 458

1. CHECK CAMSHAFT POSITION SENSOR (SENSOR POWER SOURCE) Disconnect the camshaft position sensor connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E66-3 (VC) - Body ground Engine switch on (IG) 4.5 to 5.0 V Reconnect the camshaft position sensor connector. NG --> See step 8 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - ECM) Disconnect the camshaft position sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition E66-1 (G22+) - E4-24 (G2+) Always Below 1 ohms E66-2 (G22-) - E4-32 (G2-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition E66-1 (G22+) or E4-24 (G2+) - Body ground Always 10 kohms or higher E66-2 (G22-) or E4-32 (G2-) - Body ground Always 10 kohms or higher Reconnect the camshaft position sensor connector and ECM 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. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY (BANK 2) Check the teeth of the sensor plate. OK Sensor plate teeth do not have any cracks or deformation. NG --> See step 10 OK: Go to next step
5. CHECK VALVE TIMING Check the valve timing. Refer to «PROCEDURE - Step 3»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostic-codes-p0010-p0193) . NG --> See step 11 OK: Go to next step
6. REPLACE CAMSHAFT POSITION SENSOR Replace the camshaft position sensor. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . NEXT: Go to next step
7. CHECK WHETHER DTC OUTPUT RECURS (DTC P1340, P1342 AND/OR P1343) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . Start the engine. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A DTC P1340, P1342 and P1343 are output B HINT: If the engine does not start, replace the ECM. B --> See step 12 A --> END
8. CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - ECM) Disconnect the camshaft position sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition E66-3 (VC) - E3-18 (VC) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition E66-3 (VC) or E3-18 (VC) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the camshaft position sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 13
9. SECURELY REINSTALL (CAMSHAFT POSITION SENSOR). Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
10. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY (BANK 2). Refer to «DISASSEMBLY - Step 37»(/lexus/is-f/i-2007-2014/remont/mechanical/#engine-mechanical-service-information)
11. ADJUST VALVE TIMING. Refer to «REASSEMBLY - Step 24»(/lexus/is-f/i-2007-2014/remont/mechanical/#engine-mechanical-service-information)
12. REPLACE ECM. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
13. REPLACE ECM. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)

Refer to DTC P0010. Refer to DESCRIPTION .

This DTC is output when a rotation signal malfunction is detected in the intake side camshaft timing control motor. While the engine is running, if a rotation signal (VTS) malfunction is detected, a DTC is immediately output (1 trip detection logic). If the engine is idled for 30 seconds, a DTC is detected.

Scheme 459

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) .
4. Turn the engine switch off and wait for 30 seconds.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 30 seconds or more [B].
8. Enter the following menus: Powertrain / Engine / Trouble Codes.
9. Read the DTC [C]. 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 / Utility / All Readiness.
11. Input the DTC: P1360 or P1361.
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 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 step [B] again.
13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
14. Check the DTC judgment result. 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 test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 460

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

Scheme 461

Scheme 462

1. INSPECT VVT RELAY (VVT LH AND/OR VVT RH) Remove the VVT LH relay and/or VVT RH relay from the engine room No. 2 relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 5 When no battery voltage applied to terminals 1 and 2 10 kohms or higher 3 - 5 When battery voltage applied to terminals 1 and 2 Below 1 ohms Reinstall the relay. NG --> REPLACE VVT RELAY (VVT LH AND/OR VVT RH) OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR POWER SOURCE) Disconnect the camshaft timing control motor connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E61-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V E65-1 (+B) - Body ground Reconnect the camshaft timing control motor connector. NG --> See step 8 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) Turn the engine switch off. Disconnect the camshaft timing control motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E61-2 (PGND) - Engine ground Always Below 1 ohms E65-2 (PGND) - Engine ground Reconnect the camshaft timing control motor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ECM) Disconnect the ECM connectors. Disconnect the camshaft timing control motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition E62-3 (VTS) - E5-30 (EMR1) Always Below 1 ohms E64-3 (VTS) - E4-29 (EMR2) Standard Resistance (Check for Short) Tester Connection Condition Specified Condition E62-3 (VTS) or E5-30 (EMR1) - Body ground Always 10 kohms or higher E64-3 (VTS) or E4-29 (EMR2) - Body ground Reconnect ECM connectors and camshaft timing control motor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) Disconnect the camshaft timing control motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E62-4 (SGND) - Engine ground Always Below 1 ohms E64-4 (SGND) - Engine ground Reconnect the camshaft timing control motor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) OK: Go to next step
6. REPLACE CAMSHAFT TIMING CONTROL MOTOR (BANK 1 AND/OR BANK 2) Replace the camshaft timing control motor. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . NEXT: Go to next step
7. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Start the engine and idled it for 10 seconds. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A Other DTCs are output B B --> See step 12 A --> END
8. CHECK HARNESS AND CONNECTOR (VVT LH AND/OR VVT RH RELAY POWER SOURCE) Remove the VVT LH and/or VVT RH relay. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition VVT LH relay (1) - Body ground Engine switch on (IG) 11 to 14 V VVT RH relay (1) - Body ground Engine switch on (IG) 11 to 14 V Reinstall the relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 2 FUSE - VVT LH AND/OR VVT RH RELAY) OK: Go to next step
9. CHECK HARNESS AND CONNECTOR (VVT LH AND/OR VVT RH RELAY - BODY GROUND) Remove the VVT LH and/or VVT RH relay. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition VVT LH relay (2) - Body ground Always Below 1 ohms VVT RH relay (2) - Body ground Always Below 1 ohms Reinstall the relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT LH AND/OR VVT RH RELAY - BODY GROUND) OK: Go to next step
10. INSPECT FUSIBLE LINK BLOCK ASSEMBLY (VVT FUSE) Remove the fusible link block assembly from the engine room No. 1 relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1F-4 - 1B-1 Always Below 1 ohms Reinstall the fusible link block assembly. NG --> REPLACE FUSIBLE LINK BLOCK ASSEMBLY (VVT FUSE) OK: Go to next step
11. CHECK HARNESS AND CONNECTOR (VVT LH AND/OR VVT RH RELAY - BATTERY) Remove the VVT LH and/or VVT RH relay. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition VVT LH relay (3) - Body ground Engine switch on (IG) 11 to 14 V VVT RH relay (3) - Body ground Engine switch on (IG) 11 to 14 V Reinstall the relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT LH AND/OR VVT RH RELAY - BATTERY) OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT LH AND/OR VVT RH RELAY - CAMSHAFT TIMING CONTROL MOTOR)
12. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__diagnostic-trouble-code-chart)

Refer to DTC P0010. Refer to DESCRIPTION .

This DTC is output when a rotation direction signal malfunction is detected in the intake side camshaft timing control motor. While the engine is running, if a rotation direction signal (VTD) malfunction is detected, a DTC is output (1 trip detection logic).

When there is a malfunction, if the engine is idled for 30 seconds or the vehicle is driven in an urban area for 5 minutes, a DTC is output.

Scheme 463

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) .
4. Turn the engine switch off and wait for 30 seconds.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Idle the engine for 30 seconds or more [B].
7. Enter the following menus: Powertrain / Engine / Trouble Codes.
8. Read the DTC [C]. 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 / Utility / All Readiness.
10. Input the DTC: P1362 or P1363.
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 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 [D] and [E].
12. Drive the vehicle for 5 minutes or more [D]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
14. Check the DTC judgment result [E]. 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 test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Refer to DTC P1360. Refer to WIRING DIAGRAM .

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.

1. INSPECT VVT RELAY (VVT LH AND/OR VVT RH) Remove the VVT LH relay and/or VVT RH relay from the engine room No. 2 relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 5 When no battery voltage applied to terminals 1 and 2 10 kohms or higher 3 - 5 When battery voltage applied to terminals 1 and 2 Below 1 ohms Reinstall the relay. NG --> REPLACE VVT RELAY (VVT LH AND/OR VVT RH) OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR POWER SOURCE) Disconnect the camshaft timing control motor connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E61-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V E65-1 (+B) - Body ground Reconnect the camshaft timing control motor. NG --> See step 8 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) Turn the engine switch off. Disconnect the camshaft timing control motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E61-2 (PGND) - Engine ground Always Below 1 ohms E65-2 (PGND) - Engine ground Reconnect the camshaft timing control motor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ECM) Disconnect the ECM connectors. Disconnect the camshaft timing control motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition E62-2 (VTD) - E5-31 (EMF1) Always Below 1 ohms E64-2 (VTD) - E4-30 (EMF2) Standard Resistance (Check for Short) Tester Connection Condition Specified Condition E62-2 (VTD) or E5-31 (EMF1) - Body ground Always 10 kohms or higher E64-2 (VTD) or E4-30 (EMF2) - Body ground Reconnect the camshaft timing control motor connector and ECM connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) Disconnect the camshaft timing control motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E62-4 (SGND) - Engine ground Always Below 1 ohms E64-4 (SGND) - Engine ground Reconnect the camshaft timing control motor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) OK: Go to next step
6. REPLACE CAMSHAFT TIMING CONTROL MOTOR (BANK 1 AND/OR BANK 2) Replace the camshaft timing control motor. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . NEXT: Go to next step
7. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Start the engine and idled it for 10 seconds. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A Other DTCs are output B B --> See step 12 A --> END
8. CHECK HARNESS AND CONNECTOR (VVT LH AND/OR VVT RH RELAY POWER SOURCE) Remove the VVT LH and/or VVT RH relay. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition VVT LH relay (1) - Body ground Engine switch on (IG) 11 to 14 V VVT RH relay (1) - Body ground Engine switch on (IG) 11 to 14 V Reinstall the relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 2 FUSE - VVT LH AND/OR VVT RH RELAY) OK: Go to next step
9. CHECK HARNESS AND CONNECTOR (VVT LH AND/OR VVT RH RELAY - BODY GROUND) Remove the VVT LH and/or VVT RH relay. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition VVT LH relay (2) - Body ground Always Below 1 ohms VVT RH relay (2) - Body ground Always Below 1 ohms Reinstall the relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT LH AND/OR VVT RH RELAY - BODY GROUND) OK: Go to next step
10. INSPECT FUSIBLE LINK BLOCK ASSEMBLY (VVT FUSE) Remove the fusible link block assembly from the engine room No. 1 relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1F-4 - 1B-1 Always Below 1 ohms Reinstall the fusible link block assembly. NG --> REPLACE FUSIBLE LINK BLOCK ASSEMBLY (VVT FUSE) OK: Go to next step
11. CHECK HARNESS AND CONNECTOR (VVT LH AND/OR VVT RH RELAY - BATTERY) Remove the VVT LH and/or VVT RH relay. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition VVT LH relay (3) - Body ground Engine switch on (IG) 11 to 14 V VVT RH relay (3) - Body ground Engine switch on (IG) 11 to 14 V Reinstall the relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT LH AND/OR VVT RH RELAY - BATTERY) OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT LH AND/OR VVT RH RELAY - CAMSHAFT TIMING CONTROL MOTOR)
12. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__diagnostic-trouble-code-chart)

Refer to DTC P0010. Refer to DESCRIPTION .

This DTC is output when a power supply malfunction, diagnostic signal malfunction or motor operation signal malfunction is detected in the intake side camshaft timing control motor. The camshaft timing control motor is equipped with a self diagnostic function, which is used to send diagnostic a signal (VTM) to the ECM. If the ECM receives a VTP or VTM open signal, a DTC is output immediately (1 trip detection logic).

If the engine is idled for 10 seconds, a DTC is detected.

Scheme 464

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) .
4. Turn the engine switch off and wait for 30 seconds.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 10 seconds or more [B].
8. Enter the following menus: Powertrain / Engine / Trouble Codes.
9. Read the DTC [C]. 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 / Utility / All Readiness.
11. Input the DTC: P1364 or P1365.
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 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 step [B] again.
13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
14. Check the DTC judgment result. 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 test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Refer to DTC P1360. Refer to WIRING DIAGRAM .

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.

1. INSPECT VVT RELAY (VVT LH AND/OR VVT RH) Remove the VVT LH relay and/or VVT RH relay from the engine room No. 2 relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 5 When no battery voltage applied to terminals 1 and 2 10 kohms or higher 3 - 5 When battery voltage applied to terminals 1 and 2 Below 1 ohms Reinstall the relay. NG --> REPLACE VVT RELAY (VVT LH AND/OR VVT RH) OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR POWER SOURCE) Disconnect the camshaft timing control motor connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E61-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V E65-1 (+B) - Body ground Reconnect the camshaft timing control motor connector. NG --> See step 8 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) Turn the engine switch off. Disconnect the camshaft timing control motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E61-2 (PGND) - Engine ground Always Below 1 ohms E65-2 (PGND) - Engine ground Reconnect the camshaft timing control motor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ECM) Disconnect the camshaft timing control motor connector. Disconnect the ECM connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition E62-1 (VTM) - E5-9 (EMD1) Always Below 1 ohms E62-5 (VTP) - E5-8 (EDT1) E64-1 (VTM) - E4-31 (EMD2) E64-5 (VTP) - E4-16 (EDT2) Standard Resistance (Check for Short) Tester Connection Condition Specified Condition E62-1 (VTM) or E5-9 (EMD1) - Body ground Always 10 kohms or higher E62-5 (VTP) or E5-8 (EDT1) - Body ground E64-1 (VTM) or E4-31 (EMD2) - Body ground E64-5 (VTP) or E4-16 (EDT2) - Body ground Reconnect the camshaft timing control motor connector and ECM connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) Disconnect the camshaft timing control motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E62-4 (SGND) - Engine ground Always Below 1 ohms E64-4 (SGND) - Engine ground Reconnect the camshaft timing control motor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ENGINE GROUND) OK: Go to next step
6. REPLACE CAMSHAFT TIMING CONTROL MOTOR (BANK 1 AND/OR BANK 2) Replace the camshaft timing control motor. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . NEXT: Go to next step
7. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Start the engine and idle it for 10 seconds. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A Other DTCs are output B B --> See step 12 A --> END
8. CHECK HARNESS AND CONNECTOR (VVT LH AND/OR VVT RH RELAY POWER SOURCE) Remove the VVT LH and/or VVT RH relay. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition VVT LH relay (1) - Body ground Engine switch on (IG) 11 to 14 V VVT RH relay (1) - Body ground Engine switch on (IG) 11 to 14 V Reinstall the relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 2 FUSE - VVT LH AND/OR VVT RH RELAY) OK: Go to next step
9. CHECK HARNESS AND CONNECTOR (VVT LH AND/OR VVT RH RELAY - BODY GROUND) Remove the VVT LH and/or VVT RH relay. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition VVT LH relay (2) - Body ground Always Below 1 ohms VVT RH relay (2) - Body ground Always Below 1 ohms Reinstall the relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT LH AND/OR VVT RH RELAY - BODY GROUND) OK: Go to next step
10. INSPECT FUSIBLE LINK BLOCK ASSEMBLY (VVT FUSE) Remove the fusible link block from the engine room No. 1 relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1F-4 - 1B-1 Always Below 1 ohms Reinstall the fusible link block assembly. NG --> REPLACE FUSIBLE LINK BLOCK ASSEMBLY (VVT FUSE) OK: Go to next step
11. CHECK HARNESS AND CONNECTOR (VVT LH AND/OR VVT RH RELAY - BATTERY) Remove the VVT LH and/or VVT RH relay. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition VVT LH relay (3) - Body ground Engine switch on (IG) 11 to 14 V VVT RH relay (3) - Body ground Engine switch on (IG) 11 to 14 V Reinstall the relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT LH AND/OR VVT RH RELAY - BATTERY) OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT LH AND/OR VVT RH RELAY - CAMSHAFT TIMING CONTROL MOTOR)
12. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__diagnostic-trouble-code-chart)

Refer to DTC P0010. Refer to DESCRIPTION .

This DTC is output when a diagnostic signal malfunction is detected in the intake side camshaft timing control motor. The camshaft timing control motor is equipped with a self diagnostic function, which is used to output the condition of the camshaft timing control motor as a diagnosis signal (VTM) to the ECM. If the ECM receives a diagnosis signal that is not one of the set signals, a DTC is output immediately (1 trip detection logic).

If the engine is idled for 10 seconds, a DTC is detected.

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) .
4. Turn the engine switch off and wait for 30 seconds.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 10 seconds or more [B].
8. Enter the following menus: Powertrain / Engine / Trouble Codes.
9. Read the DTC [C]. 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 / Utility / All Readiness.
11. Input the DTC: P1366 or P1367.
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 ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result sows INCOMPLETE or UNKNOWN, perform step [B] again.
13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
14. Check the DTC judgment result. 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 test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Refer to DTC P1360. Refer to WIRING DIAGRAM .

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.

1. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING CONTROL MOTOR - ECM) Disconnect the camshaft timing control motor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition E62-1 (VTM) - E5-9 (EMD1) Always Below 1 ohms E64-1 (VTM) - E4-31 (EMD2) Standard Resistance (Check for Short) Tester Connection Condition Specified Condition E62-1 (VTM) or E5-9 (EMD1) - Body ground Always 10 kohms or higher E64-1 (VTM) or E4-31 (EMD2) - Body ground Reconnect the camshaft timing control motor connector and ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
2. REPLACE CAMSHAFT TIMING CONTROL MOTOR (BANK 1 AND/OR BANK 2) Replace the camshaft timing control motor. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . NEXT: Go to next step
3. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Start the engine and idle it for 10 seconds. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A Other DTCs are output B B --> See step 4 A --> END
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__diagnostic-trouble-code-chart)

P1603

After starting the engine, this DTC is stored when the engine stops without the engine switch being operated.

Using the Techstream, the conditions present when the DTC was stored can be confirmed by referring to the freeze frame data. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. This information can be useful when troubleshooting.

It is necessary to check if the vehicle has ran out of fuel before performing troubleshooting, as this DTC is also stored when the engine stalls due to running out of fuel.

P1605

This DTC is stored if the engine speed drops below the set speed.

Using the Techstream, the conditions present when the DTC was stored can be confirmed by referring to the freeze frame data. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. This information can be useful when troubleshooting.

It is necessary to check if the vehicle ran out of fuel before performing troubleshooting, as this DTC is also stored when idling is unstable due to running out of fuel.

Scheme 465

Scheme 466

Scheme 467

1. Reference waveforms showing a normal cold engine start
2. Reference waveforms showing a normal warm engine start
3. Reference waveforms showing an engine stop after normal idling
4. Reference values when there is an air leak in the intake system during rough idling FREEZE FRAME DATA P1605 ROUGH IDLING Engine Current P1605: Rough Idling Time Freeze Frame Data Item Data1 Data2 Data3 Data4 Data5 Unit Engine Speed 775 769 577 359 303 rpm Calculate Load 26.6 26.6 29.0 40.3 44.3 % Vehicle Load 12.9 12.9 35.6 65.0 16.0 % MAF 5.09 5.04 10.28 11.60 2.40 gm/sec Atmosphere Pressure 101 101 101 101 101 kPa Coolant Temp 93 93 93 93 93 °C Intake Air 37 37 37 37 37 °C Battery Voltage 13.398 13.398 13.222 12.832 12.792 V Throttle Sensor Volt % 16.0 16.0 19.2 20.7 17.6 % Throttle Sensor #2 Volt % 47.4 47.4 51.3 52.9 49.8 % Throttle Sensor Position 0.0 0.0 0.0 0.0 0.0 % Throttle Motor DUTY 16.0 16.0 19.6 20.3 17.6 % Injector (Port) 0 0 0 0 0 μs Injection Volume (Cylinder 1) 0.101 0.100 0.100 0.100 0.100 ml Fuel Pump/Speed Status ON ON ON ON ON Injection Time (D4) 1170 1173 1177 2388 2388 μs EVAP (Purge) VSV 0.0 0.0 0.0 0.0 0.0 % Evap Purge Flow 0.0 0.0 0.0 0.0 0.0 % Purge Density Learn Value 0.000 0.000 0.000 -0.617 0.000 EVAP System Vent Valve OFF OFF OFF OFF OFF EVAP purge VSV OFF OFF OFF OFF OFF Purge Cut VSV Duty 0.0 0.0 0.0 0.0 0.0 % Target Air-Fuel Ratio 0.992 0.992 0.992 0.992 0.992 AF Lambda B1S1 0.991 0.990 0.991 1.026 1.147 AF Lambda B2S1 0.995 0.993 0.992 1.014 1.161 AFS Voltage B1S1 3.273 3.268 3.273 3.488 3.859 V AFS Voltage B2S1 3.293 3.278 3.278 3.454 3.956 V O2S B1S2 0.115 0.115 0.115 0.115 0.115 V O2S B2S2 0.115 0.115 0.115 0.115 0.115 V Short FT #1 8.593 8.593 8.593 9.375 9.375 % Long FT #1 0.000 0.000 0.000 0.000 0.000 % Total FT #1 0.000 0.000 0.000 0.000 0.000 Sort FT #2 8.593 7.812 8.593 10.937 12.500 % Long FT #2 0.000 0.000 0.000 0.000 0.000 % Total FT #2 0.000 0.000 0.000 0.000 0.000 Fuel System Status #1 CL CL CL CL CL Fuel System Status #2 CL CL CL CL CL IGN Advance 14.0 15.0 18.0 18.0 12.5 deg Knock Feedback Value -3.0 -3.0 -3.0 -3.0 -3.0 CA Knock Correct Learn Value 15.6 15.6 15.6 15.6 15.6 CA Starter Signal Close Close Close Close Close Ambient Temp for A/C 26 26 26 26 26 °C

HINT

1. In contrast to normal malfunction diagnosis for components, circuits and systems, DTCs P1603 and P1605 are used to determine the malfunctioning area from the problem symptoms and freeze frame data when the user mentions problems such as engine stall. As these DTCs can be stored as a result of certain user actions, even if these DTCs are output, if the customer makes no mention of problems, clear these DTCs without performing any troubleshooting and return the vehicle to the customer.
2. If any other DTCs are output, perform troubleshooting for those DTCs first.
3. Use any information from the customer problem analysis about the condition of the vehicle at the time when the problem occurred (how the engine stopped, conditions when the engine was restarted, etc.) as a reference. Symptom Suspected Area Engine vibration occurs and engine stops Air-fuel ratio abnormal Engine stops with no engine vibration Ignition system, injection stoppage, high load from external parts Engine can be started with accelerator pedal depressed Insufficient air volume Rough idling after engine started Air-fuel ratio abnormal, abnormal combustion
4. 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. This information can be useful when troubleshooting.
5. When confirming the freeze frame data, be sure to check all 5 sets of freeze frame data. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) .
6. When DTC P1603 (Engine Stall History) is stored, DTC P1605 (Rough Idling) is also stored. When confirming freeze frame data, check DTC P1605. (The ECM stores DTC P1605 first. Therefore, the 5 sets of freeze frame data can be confirmed through DTC P1605, enabling the technician to obtain more information.)
7. When confirming freeze frame data, if there are multiple items related to the cause of the malfunction, perform troubleshooting for all related items.
8. Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data.
9. Inspections take into account the fact that the malfunction may not have reoccurred and place emphasis on checking the vehicle conditions present at the time when the malfunction occurred.
10. When performing inspections, jiggle the relevant wire harnesses and connectors in an attempt to reproduce malfunctions that do not always occur.

Inspection flow

Using freeze frame data, narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred.

P1603

Scheme 468

1

1. If the engine stalled when the intake air volume was low (during idling or deceleration), there may be a decrease in torque due to an incorrect air-fuel ratio, etc.
2. If the engine stalled when the intake air volume was high (during driving or acceleration), there may be a major malfunction such as continuous misfire due to ignition stoppage, fuel injection stoppage, etc. and the torque drops to zero.

2

1. If the engine speed decreased slowly, there may have been a decrease in torque due to an air-fuel ratio that was incorrect (by approximately 20 to 30%), etc.
2. If the engine speed decreased rapidly, there may have been a malfunction such as when the engine misfires almost continuously due to ignition stoppage, fuel injection stoppage, etc., or when the external load increases due to an external part malfunctioning.

3

1. If the air-fuel ratio is abnormal, there may have been an intake air leak, sensor malfunction, or fuel supply problem.
2. If the vehicle was normal, the air volume may have been insufficient, or the ignition timing may have been incorrect.

P1603 inspection flow: Narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred (freeze frame data).

P1605

Scheme 469

1

1. If the engine speed decreased slowly, there may have been a decrease in torque due to an air-fuel ratio that was incorrect (by approximately 20 to 30%), etc.
2. If the engine speed decreased rapidly, there may have been a malfunction such as when the engine misfires almost continuously due to ignition stoppage, fuel injection stoppage, etc., or when the external load increases due to an external part malfunctioning.

2

1. If the air-fuel ratio is abnormal, there may have been an intake air leak, sensor malfunction, or fuel supply problem.
2. If the vehicle was normal, the air volume may have been insufficient, or the ignition timing may have been incorrect.

P1605 inspection flow: Narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred (freeze frame data).

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

Scheme 470

Scheme 471

Scheme 472

Scheme 473

Scheme 474

Scheme 475

Scheme 476

Scheme 477

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P1603 AND/OR P1605) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P1603 and/or P1605 are output A DTC P1603, P1605 and other DTCs are output B B --> See step 60 A: Go to next step
2. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Problem Symptom Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to Closed Throttle Position SW Engine Speed Total of Short FT and Long FT When idling or decelerating, engine speed slowly decreases and engine stalls All 5 sets of freeze frame data are ON Decreases slowly*1 All 5 sets of freeze frame data are +15% or more*2 Air suction Sensor malfunction (value from sensor too lean) Fuel supply problem A At least 1 of the 5 sets of freeze frame data is -15% or less*3 Sensor malfunction (value from sensor too rich) B All 5 sets of freeze frame data are from -15% to +15% Intake air volume insufficient Ignition timing incorrect C When idling or decelerating, engine speed rapidly decreases and engine stalls Decreases rapidly*1 - Injection stoppage, ignition stoppage Load from external parts D When accelerating or driving at constant speed, engine stalls*4 At least one is OFF - - Sensor malfunction Injection stoppage, ignition stoppage Fuel supply problem E HINT: *1: A rapid decrease in engine speed may have been caused by an electrical malfunction in the shared wiring of all or multiple cylinders, an increase in load from external parts, etc. The engine speed is considered to have decreased rapidly if either of the following conditions apply. Otherwise, the engine speed is considered to have decreased slowly. In the freeze frame data, the decrease in engine speed from #3 to #5 is 400 rpm or more. In the freeze frame data, the engine speed at #5 is 120 rpm or less. If the vehicle speed is 9.3 mph (15 km/h) or less and the difference between engine speed and SPD (NT) is 100 rpm or less, inspect the automatic transmission. (Depending on the rate of vehicle deceleration, the engine speed may have decreased due to the A/T lock-up release being late.) *2: When a DTC is stored, feedback compensation increases because the air-fuel ratio is determined to be lean. *3: When a DTC is stored, feedback compensation decreases because the air-fuel ratio is determined to be rich. *4: This item should be checked when DTC P1603 is output and is not necessary to check when only P1605 is output. E --> See step 50 D --> See step 43 C --> See step 35 B --> See step 25 A: Go to next step
3. CHECK INTAKE SYSTEM Check for air suction in the intake system [vacuum hose disconnection, cracks, gaskets, etc.]. Refer to «ON-VEHICLE INSPECTION - Step 1»(/lexus/is-f/i-2007-2014/remont/mechanical/#intake-inspection) . HINT: If the accelerator pedal is released after racing the engine, the inspection is easier to perform because the vacuum inside the intake pipes increases and the air suction noise becomes louder. If Short FT and Long FT are largely different from the normal values when idling (the intake air volume is small) and almost the same as the normal values when racing the engine (the intake air volume is high), air leakage may be present. OK There is no air suction. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
4. CHECK PURGE VSV Disconnect the purge hose (on the canister side) of the purge VSV. Start the engine. Idle the engine. Disconnect the connector of the purge VSV. Check if air flows through the purge VSV. OK Air does not flow. Connect the connector of the purge VSV. Connect the purge hose of the purge VSV. HINT: When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . NG --> See step 61 OK: Go to next step
5. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Stop Light Switch At least 1 of the 5 sets of freeze frame data is ON Air suction from brake booster A All 5 sets of freeze frame data are OFF - B B --> See step 7 A: Go to next step
6. READ VALUE USING TECHSTREAM (SHORT FT #1 OR SHORT FT #2) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Start the engine, turn off all accessory switches and warm up the engine until the engine coolant temperature stabilizes. Idle the engine. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Short FT #1 or Short FT #2. Standard Short FT #1 or Short FT #2 changes by +10% or less. HINT: Even if the results are normal, the brake booster may have been malfunctioning. Continue this inspection procedure until step 24, and if there are no problems with other parts, replace the brake booster (refer to step 57 ). When air suction is present, the feedback compensation increases because the air-fuel ratio becomes lean. It is also possible to perform the airtightness inspection to check the brake booster. Refer to «ON-VEHICLE INSPECTION»(/lexus/is-f/i-2007-2014/remont/mechanical-hydraulic/#brake-other-service-information) . NG --> See step 62 OK: Go to next step
7. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Calculate Load Below 90% of the current value*1 Mass air flow meter A AFS Voltage B1S1 and AFS Voltage B2S1 3.3 V or higher*2 Air fuel ratio sensor Wire harness or connector Actual air-fuel ratio abnormal B Both freeze frame data items listed above Values are other than above - C HINT: Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data. *1: If the mass air flow meter is malfunctioning and incorrectly measures the intake air volume to be less than the actual intake air volume, the freeze frame data will show a low Calculate Load value. *2: If the air fuel ratio sensor is malfunctioning and constantly outputs a value indicating the air-fuel ratio is lean, the actual air-fuel ratio will become rich and the engine may stall. C --> See step 12 B --> See step 9 A: Go to next step
8. CHECK MASS AIR FLOW METER Remove the mass air flow meter. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . Check for foreign matter in the air flow passage of the mass air flow meter. Result Result Proceed to Visible foreign matter is present A Visible foreign matter is not present B Install the mass air flow meter. Refer to «INSTALLATION»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . HINT: Even if the results are normal, the mass air flow meter may have been malfunctioning. Continue this inspection procedure until step 24, and if there are no problems with other parts, replace the mass air flow meter (refer to step 57 ). B --> See step 12 A --> See step 63
9. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME FOR A/F SENSOR) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Start the engine, turn off all accessory switches and warm up the engine until the engine coolant temperature stabilizes. Idle the engine. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor. Read the output voltage from the air fuel ratio sensor when increasing and decreasing the fuel injection volume. Standard Techstream Display Specified Condition Control the Injection Volume for A/F Sensor (25%) Air fuel ratio sensor output voltage is below 3.1 V Control the Injection Volume for A/F Sensor (-12.5%) Air fuel ratio sensor output voltage is higher than 3.4 V Result Result Proceed to NG A OK B HINT: 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. Even if the results are normal, the air fuel ratio sensor may have been malfunctioning. Continue this inspection procedure until step 24, and if there are no problems with other parts, replace the air fuel ratio sensor (refer to step 57 ). B --> See step 12 A: Go to next step
10. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR POWER SOURCE) Disconnect the air fuel ratio sensor connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E42-2 (+B) - Body ground Engine switch on (IG) 11 to 14 V E38-2 (+B) - Body ground Engine switch on (IG) 11 to 14 V HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. Reconnect the air fuel ratio sensor connector. NG --> See step 64 OK: Go to next step
11. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Disconnect the air fuel ratio sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition E42-1 (HA1A) - E6-5 (HA1A) Always Below 1 ohms E42-3 (A1A+) - E5-23 (A1A+) Always Below 1 ohms E42-4 (A1A-) - E5-22 (A1A-) Always Below 1 ohms E38-1 (HA2A) - E6-6 (HA2A) Always Below 1 ohms E38-3 (A2A+) - E5-21 (A2A+) Always Below 1 ohms E38-4 (A2A-) - E5-20 (A2A-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition E42-1 (HA1A) or E6-5 (HA1A) - Body ground Always 10 kohms or higher E42-3 (A1A+) or E5-23 (A1A+) - Body ground Always 10 kohms or higher E42-4 (A1A-) or E5-22 (A1A-) - Body ground Always 10 kohms or higher E38-1 (HA2A) or E6-6 (HA2A) - Body ground Always 10 kohms or higher E38-3 (A2A+) or E5-21 (A2A+) - Body ground Always 10 kohms or higher E38-4 (A2A-) or E5-20 (A2A-) - Body ground Always 10 kohms or higher HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. Reconnect the ECM connector. Reconnect the air fuel ratio sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 65
12. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Proceed to Initial Engine Coolant Temp, Ambient Temp for A/C, Initial Intake Air Temp Difference in temperature between each item is below 10°C (18°F)*1 A Difference in temperature between each item is 10°C (18°F) or more*2 B HINT: *1: A long time had elapsed after stopping the engine. *2: A long time had not elapsed after stopping the engine. B --> See step 15 A: Go to next step
13. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Initial Engine Coolant Temp, Coolant Temp, Engine Run Time Range A Engine coolant temperature sensor Thermostat A Range B Engine coolant temperature sensor B Range C - C HINT: This step is not directly related to engine stall. C --> See step 17 B --> See step 16 A: Go to next step
14. INSPECT THERMOSTAT HINT: For the thermostat inspection, refer to the following procedures. Refer to «INSPECTION»(/lexus/is-f/i-2007-2014/remont/cooling-fan/#cooling-service-information) . Result Result Proceed to NG A OK B HINT: This step is not directly related to engine stall. B --> See step 16 A --> See step 66
15. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Coolant Temp 120°C (248°F) or more Engine coolant temperature sensor A Coolant Temp, Ambient Temp for A/C Engine coolant temperature is lower than outside temperature by 15°C (27°F) or more Engine coolant temperature sensor Both freeze frame data items listed above Values are other than above - B B --> See step 17 A: Go to next step
16. INSPECT ENGINE COOLANT TEMPERATURE SENSOR HINT: For the engine coolant temperature sensor inspection, refer to the following procedures. Refer to «INSPECTION»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . Result Result Proceed to NG A OK B HINT: Even if the results are normal, the engine coolant temperature sensor may have been malfunctioning. Continue this inspection procedure until step 24, and if there are no problems with other parts, replace the engine coolant temperature sensor (refer to step 57 ). B --> See step 17 A --> See step 67
17. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to EVAP (Purge) VSV At least 1 of the 5 sets of freeze frame data is not 0% Purge VSV A All 5 sets of freeze frame data are 0% - B HINT: If the purge VSV is stuck closed, air-fuel ratio compensation for the purge VSV is incorrectly adjusted, and then the air-fuel ratio becomes lean and the engine may stall. B --> See step 22 A: Go to next step
18. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VSV FOR EVAP CONTROL) Disconnect the purge hose (on the canister side) of the purge VSV. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Start the engine. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Evap Control. When the purge VSV is operated using the Techstream, check whether the port of the purge VSV applies suction to your finger. Standard Techstream Operation Specified Condition ON Purge VSV port applies suction to finger OFF Purge VSV port applies no suction to finger Result Result Proceed to NG A OK B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Even if the results are normal, the purge VSV may have been malfunctioning. Continue this inspection procedure until step 24, and if there are no problems with other parts, replace the purge VSV (refer to step 57 ). B --> See step 22 A: Go to next step
19. INSPECT PURGE VSV Disconnect the purge VSV connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 23 to 26 ohms Reconnect the purge VSV connector. NG --> See step 68 OK: Go to next step
20. CHECK HARNESS AND CONNECTOR (PURGE VSV POWER SOURCE) Disconnect the purge VSV connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E77-1 - Body ground Engine switch on (IG) 11 to 14 V HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. Reconnect the purge VSV connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (PURGE VSV - EFI MAIN RELAY) OK: Go to next step
21. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) Disconnect the purge VSV connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition E77-1 - E3-17 (PRG) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition E77-1 or E3-17 (PRG) - Body ground Always 10 kohms or higher HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. Reconnect the ECM connector. Reconnect the purge VSV connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 69
22. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP/SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed. Check whether the fuel pump operating sound occurs when performing the Active Test on the Techstream. Standard Techstream Operation Specified Condition ON Operating sound heard OFF Operating sound not heard Result Result Proceed to NG A OK B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. While performing the Active Test, make sure that there is no fuel leakage from the pipes, no signs that fuel has leaked, and no fuel smell. If the fuel pump (for low pressure) operating noise is abnormal, proceed to step 23. B --> See step 24 A: Go to next step
23. INSPECT FUEL PUMP (FOR LOW PRESSURE) Disconnect the fuel pump (for low pressure) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Reference Value 4 - 5 20°C (68°F) 0.2 to 3.0 ohms Reconnect the fuel pump (for low pressure) connector. NG --> See step 70 OK --> See step 71
24. CHECK FUEL SYSTEM Check for foreign matter such as iron particles around the fuel pump (for low pressure) (fuel pump, fuel pump filter and inside the fuel tank), and for signs that the fuel pump (for low pressure) was stuck. Result Result Proceed to There is foreign matter or signs that fuel pump (for low pressure) was stuck A There is no foreign matter and no signs that fuel pump (for low pressure) was stuck B HINT: If there is foreign matter such as iron particles on the fuel pump (for low pressure), fuel filter or fuel tank, remove the foreign matter. B --> See step 57 A --> REPAIR OR REPLACE FUEL SYSTEM
25. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Calculate Load 110% or more of the current value*1 Mass air flow meter A AFS Voltage B1S1 and AFS Voltage B2S1 Below 3.3 V*2 Air fuel ratio sensor Harness and connector Actual air-fuel ratio abnormal B Both freeze frame data items listed above Values are other than above - C HINT: Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data. *1: If the mass air flow meter is malfunctioning and incorrectly measures the intake air volume to be higher than the actual intake air volume of air flowing through the intake manifold, the freeze frame data will show a high Calculate Load value. *2: As the air fuel ratio sensor output is low before the sensor warms up, the value at that time cannot be used for diagnosis. If the air fuel ratio sensor is malfunctioning and constantly outputs a value indicating the air-fuel ratio is rich, the actual air-fuel ratio will become lean and the engine may stall. C --> See step 30 B --> See step 27 A: Go to next step
26. CHECK MASS AIR FLOW METER Remove the mass air flow meter. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . Check for foreign matter in the air flow passage of the mass air flow meter. Result Result Proceed to Visible foreign matter is present A Visible foreign matter is not present B Install the mass air flow meter. Refer to «INSTALLATION»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . HINT: Even if the results are normal, the mass air flow meter may have been malfunctioning. Continue this inspection procedure until step 34, and if there are no problems with other parts, replace the mass air flow meter (refer to step 57 ). B --> See step 30 A --> See step 63
27. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME FOR A/F SENSOR) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Start the engine, turn off all accessory switches and warm up the engine until the engine coolant temperature stabilizes. Idle the engine. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor. Read the output voltage from the air fuel ratio sensor when increasing and decreasing the fuel injection volume. Standard Techstream Display Specified Condition Control the Injection Volume for A/F Sensor (25%) Air fuel ratio sensor output voltage is below 3.1 V Control the Injection Volume for A/F Sensor (-12.5%) Air fuel ratio sensor output voltage is higher than 3.4 V Result Result Proceed to NG A OK B HINT: 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. Even if the results are normal, the air fuel ratio sensor may have been malfunctioning. Continue this inspection procedure until step 34, and if there are no problems with other parts, replace the air fuel ratio sensor (refer to step 57 ). B --> See step 30 A: Go to next step
28. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR POWER SOURCE) Disconnect the air fuel ratio sensor connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E42-2 (+B) - Body ground Engine switch on (IG) 11 to 14 V E38-2 (+B) - Body ground Engine switch on (IG) 11 to 14 V HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. Reconnect the air fuel ratio sensor connector. NG --> See step 64 OK: Go to next step
29. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Disconnect the air fuel ratio sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition E42-1 (HA1A) - E6-5 (HA1A) Always Below 1 ohms E42-3 (A1A+) - E5-23 (A1A+) Always Below 1 ohms E42-4 (A1A-) - E5-22 (A1A-) Always Below 1 ohms E38-1 (HA2A) - E6-6 (HA2A) Always Below 1 ohms E38-3 (A2A+) - E5-21 (A2A+) Always Below 1 ohms E38-4 (A2A-) - E5-20 (A2A-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition E42-1 (HA1A) or E6-5 (HA1A) - Body ground Always 10 kohms or higher E42-3 (A1A+) or E5-23 (A1A+) - Body ground Always 10 kohms or higher E42-4 (A1A-) or E5-22 (A1A-) - Body ground Always 10 kohms or higher E38-1 (HA2A) or E6-6 (HA2A) - Body ground Always 10 kohms or higher E38-3 (A2A+) or E5-21 (A2A+) - Body ground Always 10 kohms or higher E38-4 (A2A-) or E5-20 (A2A-) - Body ground Always 10 kohms or higher HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. Reconnect the ECM connector. Reconnect the air fuel ratio sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 65
30. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Proceed to Initial Engine Coolant Temp, Ambient Temp for A/F, Initial Intake Air Temp Difference in temperature between each item is below 10°C (18°F)*1 A Difference in temperature between each item is 10°C (18°F) or more*2 B HINT: *1: A long time had elapsed after stopping the engine. *2: A long time had not elapsed after stopping the engine. B --> See step 33 A: Go to next step
31. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Initial Engine Coolant Temp, Coolant Temp, Engine Run Time Range A Engine coolant temperature sensor Thermostat A Range B Engine coolant temperature B Range C - C HINT: This step is not directly related to engine stall. C --> See step 58 B --> See step 34 A: Go to next step
32. INSPECT THERMOSTAT HINT: For the thermostat inspection, refer to the following procedures. Refer to «INSPECTION»(/lexus/is-f/i-2007-2014/remont/cooling-fan/#cooling-service-information) . Result Result Proceed to NG A OK B HINT: This step is not directly related to engine stall. B --> See step 34 A --> See step 66
33. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Coolant Temp 120°C (248°F) or higher Engine coolant temperature sensor A Coolant Temp, Ambient Temp for A/C Engine coolant temperature is lower than outside temperature by 15°C (27°F) or more Engine coolant temperature sensor Both freeze frame data items listed above Values are other than above - B B --> See step 58 A: Go to next step
34. INSPECT ENGINE COOLANT TEMPERATURE SENSOR HINT: For the engine coolant temperature sensor inspection, refer to the following procedures. Refer to «INSPECTION»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . Result Result Proceed to NG A OK B HINT: Even if the results are normal, the engine coolant temperature sensor may have been malfunctioning. If there are no problems with other parts, replace the engine coolant temperature sensor (refer to step 57 ). B --> See step 57 A --> See step 67
35. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Total of ISC Learning Value and ISC Feedback Value Below 80% of the current value*1 Throttle body assembly A 120% or more of the current value*2 B From 80 to 120% of the current value - C HINT: Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data. *1: If the throttle body assembly has a temporary problem in which it cannot fully close, the intake air volume and engine speed increase. As a result, the ISC learning amount becomes less than the standard. At this time, if the throttle body assembly returns to normal and fully closes, the intake air volume will be insufficient and the engine may stall. *2: If carbon accumulates on the throttle body assembly and the intake air volume decreases, the ISC learning amount is increased to maintain the idling speed. If this situation continues, the ISC learning amount reaches the upper limit, the idling speed cannot be maintained causing idling to become unstable, and the engine may stall. C --> See step 38 B --> See step 37 A: Go to next step
36. CHECK THROTTLE BODY ASSEMBLY Check for foreign matter and signs that the throttle body assembly was stuck, and also check that the valve and shaft move smoothly during operation. Result Result Proceed to NG A OK B HINT: Even if the results are normal, the throttle body assembly may have been malfunctioning. Continue this inspection procedure until step 42, and if there are no problems with other parts, replace the throttle body assembly (refer to step 57 ). B --> See step 38 A --> See step 72
37. CHECK THROTTLE BODY ASSEMBLY Check if carbon is in the air flow passage of the throttle body assembly. Result Result Proceed to Carbon in passage A No carbon in passage B HINT: Even if the results are normal, the throttle body assembly may have been malfunctioning. Continue this inspection procedure until step 42, and if there are no problems with other parts, replace the throttle body assembly (refer to step 57 ). B --> See step 38 A --> See step 82
38. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT-IE LINEAR) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Start the engine and warm it up. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT-iE Linear (Bank 1) or Control the VVT-iE Linear (Bank 2). Monitor VVT-iE Aim Angle #1 and VVT Change Angle #1 or VVT-iE Aim Angle #2 and VVT Change Angle #2. Perform the Active Test operation with the engine speed at 1500 rpm. OK Active Test Movement Order Difference between "VVT-iE Aim Angle" and "VVT Change Angle" 0 deg --> 10 deg --> 40 deg --> 10 deg --> 0 deg --> 10 deg --> END Within 5 DegFR HINT: When viewed from the rear of the engine assembly, bank 1 is on the left side and bank 2 is on the right side. Juggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. NG --> See step 73 OK: Go to next step
39. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT EXHAUST LINEAR) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Start the engine and warm it up. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT Exhaust Linear (Bank 1) or Control the VVT Exhaust Linear (Bank 2). Check the engine speed while operating the camshaft timing oil control valve using the Techstream. OK Techstream Operation Specified Condition 0% Normal engine speed 100% Engine idles roughly or stalls HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. When the results of the inspection using the Active Test are normal but the camshaft timing oil control valve operating noise is abnormal, check the camshaft timing oil control valve for any signs of problems. If the camshaft timing oil control valve is stuck on, the valve overlap increases and combustion worsens due to the internal EGR which may cause rough idle or cause the engine to stall. NG --> See step 74 OK: Go to next step
40. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to IGN Advance Knock Correct Learn Value Differs from the current value by 10° or more Below 3° Engine coolant temperature sensor Mass air flow meter Knock sensor A 3° or more - B Differs from the current value by less than 10° - - HINT: Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data. Even if the results are normal, the knock control sensors may have been malfunctioning. If there are no problems with other parts, replace the knock control sensors (refer to step 57 ). B --> See step 57 A: Go to next step
41. INSPECT ENGINE COOLANT TEMPERATURE SENSOR HINT: For the engine coolant temperature inspection, refer to the following procedures. Refer to «INSPECTION»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . NG --> See step 67 OK: Go to next step
42. INSPECT MASS AIR FLOW METER Inspect the mass air flow meter. Refer to «ON-VEHICLE INSPECTION»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . HINT: If the intake air temperature sent to the ECM is higher than the standard due to the mass air flow meter (intake air temperature sensor) malfunctioning, the ignition timing may become delayed. NG --> See step 63 OK --> See step 75
43. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR FOR PORT INJECTION POWER SOURCE) Disconnect the fuel injector for port injection connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition I9-2 - Body ground Engine switch on (IG) 11 to 14 V I10-2 - Body ground Engine switch on (IG) 11 to 14 V I11-2 - Body ground Engine switch on (IG) 11 to 14 V I12-2 - Body ground Engine switch on (IG) 11 to 14 V H9-2 - Body ground Engine switch on (IG) 11 to 14 V H10-2 - Body ground Engine switch on (IG) 11 to 14 V H11-2 - Body ground Engine switch on (IG) 11 to 14 V H12-2 - Body ground Engine switch on (IG) 11 to 14 V HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.) Reconnect the fuel injector for port injection connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL INJECTOR FOR PORT INJECTION - IG2 RELAY) OK: Go to next step
44. CHECK HARNESS AND CONNECTOR (IGNITION COIL POWER SOURCE) Disconnect the ignition coil connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E22-1 (+B) - E22-4 (GND) Engine switch on (IG) 11 to 14 V E32-1 (+B) - E32-4 (GND) Engine switch on (IG) 11 to 14 V E23-1 (+B) - E23-4 (GND) Engine switch on (IG) 11 to 14 V E33-1 (+B) - E33-4 (GND) Engine switch on (IG) 11 to 14 V E24-1 (+B) - E24-4 (GND) Engine switch on (IG) 11 to 14 V E35-1 (+B) - E35-4 (GND) Engine switch on (IG) 11 to 14 V E78-1 (+B) - E78-4 (GND) Engine switch on (IG) 11 to 14 V E72-1 (+B) - E72-4 (GND) Engine switch on (IG) 11 to 14 V HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.) Reconnect the ignition coil connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION COIL - IG2 RELAY) OK: Go to next step
45. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . RESULT Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Idle Spark Advn Ctrl (#1 to #8) At least one cylinder shows a value of 4° or more Fuel injector for port injection system Ignition coil system A All cylinders show a value of less than 4° - B B --> See step 47 A: Go to next step
46. READ FREEZE FRAME DATA Change the location of the ignition coil for the cylinder whose Idle Spark Advn Ctrl (#1 to #8) was 4° or more in step 45. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Idle Spark Advn Ctrl (#1 to #8). RESULT Result Proceed to Same as result in step 45 A Different from result in step 45 B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. B --> See step 76 A: Go to next step
47. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to A/C Signal Air Conditioner FB Val A/C Signal display does not change from OFF* Value displayed for Air Conditioner FB Val does not increase - A A/C Signal display changes from OFF to ON* Value displayed for Air Conditioner FB Val increase A/C system B *: Check not only the ON/OFF state of the air conditioner but also the change in air conditioner load. HINT: Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data. The normal value for the ISC learning amount is engine displacement (liters) x 0.9. Even if the results are normal, the A/C system may have been malfunctioning. Continue this inspection procedure until step 49, and if there are no problems with other parts, inspect the A/C system (refer to step 57 ). B --> See step 77 A: Go to next step
48. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to Electrical Load Signal 1 Electric Load Feedback Val Difference between Engine Speed and SPD (NT) Vehicle Speed Electrical Load Signal display changes from OFF to ON*, or Value displayed for Electric Load Feedback Val increases* Value displayed for Electric Load Val changes - - Electrical load signal circuit A Value displayed for Electric Load Val does not change At least 1 of the 5 sets of freeze frame data is below 100 rpm Below 9 mph (15 km/h) A/T system B 9 mph (15 km/h) or more - C All 5 sets of freeze frame data are 100 rpm or more - - C Electrical Load Signal display does not change from OFF, or Value displayed for Electric Load Feedback Val does not increase - At least 1 of the 5 sets of freeze frame data is below 100 rpm Below 9 mph (15 km/h) A/T system B 9 mph (15 km/h) or more - C All 5 sets of freeze frame data are 100 rpm or more - - C *: If the Electrical Load Signal display changes from OFF to ON or the "Electric Load Feedback Val" increases, it probably is a malfunction due to a change in electrical load. Check the generator and the continuity and connections between the generator and ECM. HINT: The normal value for the ISC learning amount is engine displacement (liters) x 0.9. Even if the results are normal, the electrical load signal system and/or the A/T system may have been malfunctioning. Continue this inspection procedure until step 49, and if there are no problems with other parts, inspect the electrical load system and/or the A/T system (refer to step 57 ). C --> See step 49 B --> See step 78 A --> See step 79
49. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Suspected Area Proceed to Shift SW Status (P Range) or Shift SW Status (N Range) Neutral Position SW Signal Shift SW Status (P Range) and Shift SW Status (N Range) are both OFF in at least one data set With the shift lever in D or R, Neutral Position SW Signal is ON Park/neutral position switch A With the shift lever in D or R, Neutral Position SW Signal is OFF A/T system B All 5 sets of freeze frame data are ON - - C HINT: Even if the results are normal, the park/neutral position switch and/or A/T system may have been malfunctioning. If there are no problems with other parts, inspect the park/neutral position switch and/or A/T system (refer to step 57 ). C --> See step 59 B --> See step 78 A --> See step 80
50. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction) . Result Freeze Frame Data Item for DTC P1605 Result Suspected Area Proceed to Throttle Sensor Position, Calculate Load Calculate Load decreases while Throttle Sensor Position increases Mass air flow meter A Calculate Load does not decrease while Throttle Sensor Position increases - B B --> See step 54 A: Go to next step
51. CHECK MASS AIR FLOW METER Remove the mass air flow meter. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . Check for foreign matter in the air flow passage of the mass air flow meter. Result Result Proceed to Visible foreign matter is present A Visible foreign matter is not present B Install the mass air flow meter. Refer to «INSTALLATION»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information) . HINT: Even if the results are normal, the mass air flow meter may have been malfunctioning. Continue this inspection procedure until step 56, and if there are no problems with other parts, replace the mass air flow meter (refer to step 57 ). B --> See step 52 A --> See step 63
52. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR FOR PORT INJECTION POWER SOURCE) Disconnect the fuel injector for port injection connectors. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition I9-2 - Body ground Engine switch on (IG) 11 to 14 V I10-2 - Body ground Engine switch on (IG) 11 to 14 V I11-2 - Body ground Engine switch on (IG) 11 to 14 V I12-2 - Body ground Engine switch on (IG) 11 to 14 V H9-2 - Body ground Engine switch on (IG) 11 to 14 V H10-2 - Body ground Engine switch on (IG) 11 to 14 V H11-2 - Body ground Engine switch on (IG) 11 to 14 V H12-2 - Body ground Engine switch on (IG) 11 to 14 V HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.) Reconnect the fuel injector for port injection connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL INJECTOR FOR PORT INJECTION - IG2 RELAY) OK: Go to next step
53. CHECK HARNESS AND CONNECTOR (IGNITION COIL POWER SOURCE) Disconnect the ignition coil connectors. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition E22-1 (+B) - E22-4 (GND) Engine switch on (IG) 11 to 14 V E32-1 (+B) - E32-4 (GND) Engine switch on (IG) 11 to 14 V E23-1 (+B) - E23-4 (GND) Engine switch on (IG) 11 to 14 V E33-1 (+B) - E33-4 (GND) Engine switch on (IG) 11 to 14 V E24-1 (+B) - E24-4 (GND) Engine switch on (IG) 11 to 14 V E35-1 (+B) - E35-4 (GND) Engine switch on (IG) 11 to 14 V E78-1 (+B) - E78-4 (GND) Engine switch on (IG) 11 to 14 V E72-1 (+B) - E72-4 (GND) Engine switch on (IG) 11 to 14 V HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.) Reconnect the ignition coil connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION COIL - IG2 RELAY) OK: Go to next step
54. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP/SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed. Check whether the fuel pump (for low pressure) operating sound occurs when performing the Active Test on the Techstream. Specified Condition Techstream Operation Specified Condition ON Operating sound heard OFF Operating sound not heard Result Result Proceed to NG A OK B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. While performing the Active Test, make sure that there is no fuel leakage from the pipes, no signs that fuel has leaked, and no fuel smell. If the fuel pump (for low pressure) operating noise is abnormal, proceed to step 55. B --> See step 56 A: Go to next step
55. INSPECT FUEL PUMP (FOR LOW PRESSURE) Disconnect the fuel pump (for low pressure) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Reference Value 4 - 5 20°C (68°F) 0.2 to 3.0 ohms Reconnect the fuel pump (for low pressure) connector. NG --> See step 70 OK --> See step 81
56. CHECK FUEL SYSTEM Check for foreign matter such as iron particles around the fuel pump (for low pressure) (fuel pump, fuel pump filter, inside the fuel tank), and for signs that the fuel pump (for low pressure) was stuck. Result Result Proceed to There is foreign matter or signs that fuel pump (for low pressure) was stuck A There is no foreign matter and no signs that fuel pump (for low pressure) was stuck B B --> See step 57 A --> REPAIR OR REPLACE FUEL SYSTEM (FOR LOW PRESSURE)
57. REPLACE MALFUNCTIONING PARTS If the malfunction could not be identified in steps 3 to 24, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed. Performed Step Inspection or Part to Replace Step 6 Brake booster replacement Step 8 Mass air flow meter replacement Step 9 Air fuel ratio sensor replacement Step 16 Engine coolant temperature sensor replacement Step 18 Purge VSV replacement Step 24 Fuel pump (for low pressure) replacement If the malfunction could not be identified in steps 25 to 34, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed. Performed Step Inspection or Part to Replace Step 26 Mass air flow meter replacement Step 27 Air fuel ratio sensor replacement Step 34 Engine coolant temperature sensor replacement If the malfunction could not be identified in steps 35 to 42, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed. Performed Step Inspection or Part to Replace Step 36, 37 Throttle body assembly replacement Step 40 Knock control sensor replacement If the malfunction could not be identified in steps 43 to 49, inspect and repair the part which is suspected to be malfunctioning according to the step where an inspection was performed. Performed Step Inspection or Part to Replace Step 47 A/C system inspection and repair Step 48 A/T system inspection and repair Electrical load system inspection and repair Step 49 Park/neutral position switch inspection and repair A/T system inspection and repair If the malfunction could not be identified in steps 50 to 56, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed. Performed Step Inspection or Part to Replace Step 51 Mass air flow meter replacement HINT: Referring to the chart, inspect and repair or replace the part from the step where an inspection was performed. NEXT: Go to next step
58. CLEAR DTC Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__dtc-check-clear) . NEXT: Go to next step
59. PERFORM CONFIRMATION DRIVING PATTERN Check if engine stall symptoms are present. HINT: If any engine stall symptoms are present, recheck for DTCs and freeze frame data and perform an inspection. NG --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA OK --> END
60. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostics-introduction__diagnostic-trouble-code-chart)
61. INSPECT PURGE VSV. Refer to «INSPECTION»(/lexus/is-f/i-2007-2014/remont/auxiliary-emission-control-systems/#emission-control-service-information)
62. REPLACE BRAKE BOOSTER. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/mechanical-hydraulic/#brake-other-service-information)
63. REPLACE MASS AIR FLOW METER. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
64. CHECK AIR FUEL RATIO SENSOR POWER SOURCE CIRCUIT. Refer to «PROCEDURE - Step 4»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostic-codes-p0010-p0193)
65. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
66. REPLACE THERMOSTAT. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/cooling-fan/#cooling-service-information)
67. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
68. REPLACE PURGE VSV. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/auxiliary-emission-control-systems/#emission-control-service-information)
69. REPLACE ECM. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
70. REPLACE FUEL PUMP (FOR LOW PRESSURE). Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/fuel-system/#fuel-service-information)
71. CHECK FUEL PUMP CONTROL CIRCUIT. Refer to «Fuel Pump Control Circuit»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostic-codes-p1604-u0101-circuit-tests)
72. REPLACE THROTTLE BODY ASSEMBLY. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
73. CHECK VVT-IE SYSTEM. Refer to «ON-VEHICLE INSPECTION»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
74. REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
75. REPLACE KNOCK SENSOR. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
76. REPLACE IGNITION COIL. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)
77. CHECK AIR CONDITIONING SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(/lexus/is-f/i-2007-2014/remont/automatic-hvac-system/#air-conditioning-diagnostics-introduction__how-to-proceed-with-troubleshooting)
78. CHECK AUTOMATIC TRANSMISSION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(/lexus/is-f/i-2007-2014/remont/automatic-trans/#automatic-transmission-diagnostics-introduction__how-to-proceed-with-troubleshooting)
79. CHECK GENERATOR CIRCUIT. Refer to «ON-VEHICLE INSPECTION»(/lexus/is-f/i-2007-2014/remont/charging-system/#charging-inspection)
80. INSPECT PARK/NEUTRAL POSITION SWITCH. Refer to «ON-VEHICLE INSPECTION»(/lexus/is-f/i-2007-2014/remont/automatic-trans/#automatic-transmission-service-information)
81. CHECK FUEL PUMP CONTROL CIRCUIT (FOR LOW PRESSURE). Refer to «Fuel Pump Control Circuit»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-diagnostic-codes-p1604-u0101-circuit-tests)
82. CLEAN OR REPLACE THROTTLE BODY ASSEMBLY. Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/testing-diagnostics/#engine-control-service-information)

See also:
• DTC CHECK / CLEAR
• CHECK FOR INTERMITTENT PROBLEMS
• REMOVAL
• REMOVAL
• WIRING DIAGRAM
• REMOVAL
• DESCRIPTION
• DIAGNOSTIC TROUBLE CODE CHART
• REMOVAL
• REMOVAL
• PROCEDURE - Step 3
• DISASSEMBLY - Step 37
• FREEZE FRAME DATA
• ON-VEHICLE INSPECTION - Step 1
• ON-VEHICLE INSPECTION
• INSPECTION
• INSPECTION
• Fuel Pump Control Circuit
• HOW TO PROCEED WITH TROUBLESHOOTING
• HOW TO PROCEED WITH TROUBLESHOOTING
• ON-VEHICLE INSPECTION
• WIRING DIAGRAM