PRECAUTION
Note. Perform the RESET MEMORY (AT initialization) when replacing the automatic transaxle assy, engine assy or ECM (See INITIALIZATION ).
HINT
Initialization can not be completed by only disconnecting the battery terminal.
DEFINITION OF TERMS
| Term | Definition |
|---|---|
| Monitor description | Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and its details). |
| Related DTCs | Diagnostic code |
| Typical enabling condition | Preconditions that allow the ECM to detect malfunctions. With all preconditions satisfied, the ECM sets the DTC when the monitored value (s) exceeds the malfunction threshold (s). |
| Sequence of operation | The priority order that is applied to monitoring, if multiple sensors and components are used to detect the malfunction. While another sensor is being monitored, the next sensor or component will not be monitored until the previous monitoring has concluded. |
| Required sensor/components | The sensors and components that are used by the ECM to detect malfunctions. |
| Frequency of operation | The number of times that the ECM checks for malfunctions per driving cycle. "Once per driving cycle" means that the ECM detects malfunction only one time during a single driving cycle. "Continuous" means that the ECM detects malfunction every time when enabling condition is met. |
| Duration | The minimum time that the ECM must sense a continuous deviation in the monitored value (s) before setting a DTC. This timing begins after the "typical enabling conditions" are met. |
| Malfunction thresholds | Beyond this value, the ECM will conclude that there is a malfunction and set a DTC. |
| MIL operation | MIL illumination timing after a defect is detected. "Immediately" means that the ECM illuminates MIL the instant the ECM determines that there is a malfunction. "2 driving cycle" means that the ECM illuminates MIL if the same malfunction is detected again in the 2nd driving cycle. |
| Component operating range | Normal operation range of sensors and solenoids under normal driving conditions. Use these ranges as a reference. They cannot be used to judge if a sensor or solenoid is defective or not. |
DEFINITION OF TERMS
PART AND SYSTEM NAME LIST
This reference list indicates the part names used in this manual along with their definitions.
| Part and system name | Definition |
|---|---|
| Toyota HCAC system, Hydrocarbon adsorptive Catalyst (HCAC) system, HC adsorptive three-way catalyst | HC adsorptive three-way catalytic converter |
| Variable Valve Timing sensor, VVT sensor | Camshaft position sensor |
| Variable valve timing system, VVT system | Camshaft timing control system |
| Camshaft timing oil control valve, Oil control valve OCV, VVT, VSV | Camshaft timing oil control valve |
| Variable timing and lift, VVTL | Camshaft timing and lift control |
| Crankshaft position sensor "A" | Crankshaft position sensor |
| Engine speed sensor | Crankshaft position sensor |
| THA | Intake air temperature |
| Knock control module | Engine knock control module |
| Knock sensor | Engine knock sensor |
| Mass or volume air flow circuit | Mass air flow sensor circuit |
| Vacuum sensor | Manifold air pressure sensor |
| Internal control module, Control module, Engine control ECU, PCM | Power train control module |
| FC idle | Deceleration fuel cut |
| Idle air control valve | Idle speed control |
| VSV for CCV, Canister close valve VSV for canister control | Evaporative emissions canister vent valve |
| VSV for EVAP, Vacuum switching valve assembly No. 1, EVAP VAV, Purge VSV | Evaporative emissions canister purge valve |
| VSV for pressure switching valve, Bypass VSV | Evaporative emission pressure switching valve |
| Vapor pressure sensor, EVAP pressure sensor, Evaporative emission control system pressure sensor | Fuel tank pressure sensor |
| Charcoal canister | Evaporative emissions canister |
| ORVR system | On board refueling vapor recovery system |
| Intake manifold runner control | Intake manifold tuning system |
| Intake manifold runner valve, IMRV, IACV (runner valve) | Intake manifold tuning valve |
| Intake control VSV | Intake manifold tuning solenoid valve |
| AFS | Air fuel ratio sensor |
| O2 sensor | Heater oxygen sensor |
| Oxygen sensor pumping current circuit | Oxygen sensor output signal |
| Oxygen sensor reference ground circuit | Oxygen sensor signal ground |
| Accel position sensor | Accelerator pedal position sensor |
| Throttle actuator control motor, Actuator control motor, Electronic throttle motor, Throttle control motor | Electronic throttle actuator |
| Electronic throttle control system, Throttle actuator control system | Electronic throttle control system |
| Throttle/pedal position sensor, Throttle/pedal position switch, Throttle position sensor/switch | Throttle position sensor |
| Turbo press sensor | Turbocharger pressure sensor |
| Turbo VSV | Turbocharger pressure control solenoid valve |
| P/S pressure switch | Power-steering pressure switch |
| VSV for ACM | Active control engine mount |
| Speed sensor, Vehicle speed sensor "A", Speed sensor for skid control ECU | Vehicle speed sensor |
| ATF temperature sensor, Trans. fluid temp. sensor, ATF temperature sensor "A" | Transmission fluid temperature sensor |
| Electronic controlled automatic transmission, ECT | Electronically controlled automatic |
| Intermediate shaft speed sensor "A" | Counter gear speed sensor |
PART AND SYSTEM NAME LIST
| Part and system name | Definition |
|---|---|
| Output speed sensor | Output shaft speed sensor |
| Input speed sensor, Input turbine speed sensor "A", Speed sensor (NT), Turbine speed sensor | Input turbine speed sensor |
| PNP switch, NSW | Park/neutral position switch |
| Pressure control solenoid | Transmission pressure control solenoid |
| Shift solenoid | Transmission shift solenoid valve |
| Transmission control switch, Shift lock control unit | Shift lock control module |
| Engine immobilizer system, Immobilizer system | Vehicle anti-theft system |
PART AND SYSTEM NAME LIST
Scheme 106
SYSTEM DIAGRAM
The configuration of the electronic control system in the A246E automatic transaxles is as shown in the following chart.
Scheme 107
INITIALIZATION
- RESET MEMORY
| CAUTION | Perform the RESET MEMORY (AT initialization) when replacing the automatic transaxle assy, engine assy or ECM. |
Note. Hand-held tester only
HINT
The ECM memorizes the condition that the ECT controls the automatic transaxle assy and engine assy according to those characteristics. Therefore, when the automatic transaxle assy, engine assy, or ECM has been replaced, it is necessary to reset the memory so that the ECM can memorize the new information. Reset procedure is as follows.
- Turn the ignition switch off.
- Connect the hand-held tester to the DLC3.
- Turn the ignition switch to the ON position and push the hand-held tester main switch on.
- Select the item "DIAGNOSIS/ENHANCED OBD II".
- Perform the reset memory procedure from the ENGINE menu.
| CAUTION | After performing the RESET MEMORY, be sure to perform the ROAD TEST ) described earlier. |
HINT
The ECM is learned by performing the ROAD TEST.
Scheme 108
LIST OF DISABLE A MONITOR
HINT
This table indicates ECM monitoring status for the items in the upper columns if the DTCs in each line on the left are being set.
As for the "X" mark, when the DTC on the left is stored, detection of the DTC in the upper column is not performed.
Scheme 109
Scheme 110
Scheme 111
Scheme 112
Scheme 113
Scheme 114
Scheme 115
- MONITOR DRIVE PATTERN FOR ECT TEST Perform this drive pattern as one method to simulate the detection conditions of the ECT malfunctions. (The DTCs may not be detected due the actual driving conditions. And some codes may not be detected through this drive pattern). HINT: Preparation for driving Warm up the engine sufficiently. (Engine coolant temperature is 60°C (140 °F) or higher) Drive the vehicle when the atmospheric temperature is -10 °C (14 °F) or higher. (Malfunction is not detected when the atmospheric temperature is -10 °C (14 °F) or less) Driving note Drive the vehicle through all gears. Stop --> 1st --> 2nd --> 3rd --> O/D --> O/D (lock up ON). Repeat the above driving pattern three times or more. NOTE: The monitor status can be checked using the OBD II scan tool. When using the hand-held tester, monitor status can be found in the "ENHANCED OBD II/DATA LIST" or under "CARB OBD II". In the event that the drive pattern must be interrupted (possibly due to traffic conditions or other factors) the drive pattern can be resumed and, in most cases, the monitor can be completed. CAUTION: Perform this drive pattern on a level road as much as possible and strictly observe the posted speed limits and traffic laws while driving.
MONITOR STRATEGY
P0705
| Related DTCs | P0705: Park/neutral position switch/Verify switch input |
|---|---|
| Required sensors/Components | Park/neutral position switch |
| Frequency of operation | Continuous |
| Duration | 2 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY CHART (P0705)
P0850
| Related DTCs | P0850: Park/neutral position switch/Verify switch input |
|---|---|
| Required sensors/Components | Park/neutral position switch |
| Frequency of operation | Continuous |
| Duration | 30 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY CHART (P0850)
TYPICAL ENABLING CONDITIONS
P0705
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Ignition switch | ON |
| Battery voltage | 10.5V or more |
TYPICAL ENABLING CONDITIONS CHART (P0705)
P0850
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Vehicle speed | 70 km/h (43.47 mph) or more |
| Engine speed | 1,500 RPM or more and 3,500 RPM or less |
| Intake air amount per revolution | 0.45 g/rev or more |
TYPICAL ENABLING CONDITIONS CHART (P0850)
TYPICAL MALFUNCTION THRESHOLDS
P0705
| Number of the following signal input at the same time | 2 or more |
|---|---|
| NSW switch | ON |
| R switch | ON |
| 2 switch | ON |
| L switch | ON |
TYPICAL MALFUNCTION THRESHOLDS CHART (P0705)
P0850
| NSW switch | ON |
TYPICAL MALFUNCTION THRESHOLDS CHART (P0850)
COMPONENT OPERATING RANGE
P0705
| Park/neutral position switch | The park/neutral position switch sends only one signal to the ECM. |
COMPONENT OPERATING RANGE CHART (P0705)
P0850
| Park/neutral position switch | The park/neutral position switch is OFF when vehicle speed is 70 km/h (43.47 mph) or more and engine speed is between 1,500 RPM or more and 3,500 RPM or less. |
COMPONENT OPERATING RANGE CHART (P0850)
Scheme 116
| Related DTCs | P0724: Stop light switch/Range check/Rationality |
|---|---|
| Required sensors/Components | Stop light switch |
| Frequency of operation | Continuous |
| Duration | GO and STOP 5 times |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY CHART
The stop light switch remains on during GO and STOP 5 times.
GO and STOP is defined as follows
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| GO: Vehicle speed | 30 km/h (1 8.63 mph) or more |
| STOP: Vehicle speed | Less than 3 km/h (1.86 mph) |
TYPICAL ENABLING CONDITIONS CHART
| Brake switch status | ON stuck |
TYPICAL MALFUNCTION THRESHOLDS CHART
Scheme 117
| Related DTCs | P0741: Shift solenoid valve SL7 OFF malfunction P0741: Shift solenoid valve SL/ON malfunction |
|---|---|
| Required sensors/Components | Shift solenoid valve SL |
| Frequency of operation | Continuous |
| Duration | 3.6 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY CHART
The following items are common to all conditions below.
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Transmission shift position | "D" |
| ECT | 55°C (131°F) or more and Less than 105°C (221°F) |
| IAT (only for malfunction) | 10°C (14°F) or more and Less than 70°C (158°F) |
| Shift solenoid "A" (S1) circuit Shift solenoid "B" (S2) circuit Torque converter clutch solenoid (SL) circuit | There is no malfunction in the circuits shown on the left. |
| Battery voltage | 10V or more |
| Spark retard by KCS control | 0° CA or more |
TYPICAL ENABLING CONDITIONS CHART (1 OF 3)
OFF malfunction
| ECM selected gear | 4th with lock up |
TYPICAL ENABLING CONDITIONS CHART (2 OF 3)
ON malfunction
| ECM selected gear | 4th |
|---|---|
| Throttle valve opening angle | 7% or more |
TYPICAL ENABLING CONDITIONS CHART (3 OF 3)
Either of the following conditions is met: OFF malfunction or ON malfunction
OFF malfunction
| Engine Speed | 4th gear ratio x NO +100 RPM or more and Less than 3rd gear ratio x NO -100 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART (1 OF 2)
ON malfunction
| Engine speed It is necessary 2 judgments/driving cycle 1st judgment: temporary flag ON 2nd judgment: pending fault code ON | 4th gear ratio x NO - 50 RPM or more and Less than 4th gear ratio x NO + 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART (2 OF 2)
| Related DTCs | P0751: Shift solenoid valve S1 /OFF malfunction Shift solenoid valve S1 /ON malfunction |
|---|---|
| Required sensors/Components | Shift solenoid valve S1 |
| Frequency of operation | Continuous |
| Duration | 0.065 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY CHART
The following items are common to all conditions below.
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Transmission shift position | "D" |
| ECT | 55°C (131°F) or more and Less than 105°C (221°F) |
| IAT (only for malfunction) | 10°C (14°F) or more and Less than 70°C (158°F) |
| Shift solenoid "A" (S1) circuit Shift solenoid "B" (S2) circuit Torque converter clutch solenoid (SL) circuit | There is no malfunction in the sensor circuits shown on the left |
| Battery voltage | 10V or more |
| Spark retard by KCS control | 0° CA or more |
TYPICAL ENABLING CONDITIONS CHART
OFF malfunction (A)
| ECM selected gear | 1st |
|---|---|
| Throttle valve opening angle | 30% or more |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (A)
OFF malfunction (B)
| Current ECM selected gear | 2nd |
|---|---|
| Last ECM selected gear | 1st |
| Throttle valve opening angle | 7% or more |
| Closing change of throttle valve opening angle | 5% or more and Less than 5 % |
| THlast - TH current THlast: Throttle valve opening angle at last ECM selected gear TH current: Throttle valve opening angle at current ECM selected gear | 20% or more and Less than 20 % |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (B)
OFF malfunction (C), (D) and (E)
| Engine idling | OFF |
|---|---|
| Braking | OFF |
| ECM selected gear | 2nd |
| Throttle valve opening angle | 7 % or more and Less than 60 % |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (C), (D) AND (E)
OFF malfunction (F) and (G)
| Engine idling | OFF |
|---|---|
| Braking | OFF |
| ECM selected gear | 3rd |
| Throttle valve opening angle | 5 % or more and Less than 60 % |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (F) AND (G)
OFF malfunction (H) and (1)
| Engine idling | OFF |
|---|---|
| Braking | OFF |
| ECM selected gear | 4th |
| Throttle valve opening angle | 5 % or more and Less than 60 % |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (H) AND (1)
OFF malfunction (J)
| Engine idling | ON |
|---|---|
| Braking | ON |
| Throttle valve opening angle (ECM selected gear 2nd) | 65 % or more or Less than 5 % |
| Throttle valve opening angle (ECM selected gear 3rd) | 65 % or more or Less than 3 % |
| Throttle valve opening angle (ECM selected gear 4th) | 65 % or more or Less than 3 % |
| THcurrent - TH2ndstep TH current: Throttle valve opening angle at current ECM selected gear TH2ndstep: Throttle valve opening angle at 2nd judgment step | Less than - 10 % or 10% or more |
| Closing change of throttle valve opening angle | Less than -10 % or 10% or more |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (J)
ON malfunction
| ECM selected gear | 4th |
|---|---|
| Throttle valve opening angle | 12% or more and Less than 35 % |
TYPICAL ENABLING CONDITIONS CHART ON MALFUNCTION
[OFF malfunction]
There are 2 judgment steps/driving cycle
1st judgment step: when following conditions met, temporary flag becomes ON.
OFF malfunction (A) or (B)
It is necessary 2 judgments/driving cycle
2nd judgment step: when following conditions met, pending fault code becomes ON.
(OFF malfunction (E) and (G) and (H)) or (OFF malfunction (C) and (D) and (F) and (I))
OFF malfunction (A)
| Engine speed | Less than 2 x NO + 1,300 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (A)
OFF malfunction (B)
| NElast-NEcurrent NElast: Engine speed at last ECM selected gear NE current: Engine speed at current ECM selected gear | Less than 512.5 RPM at throttle valve opening angle 40 % (condition vary with throttle valve opening angle) |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (B)
OFF malfunction (C)
| Engine speed | Less than 1st gear ratio x NO + 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (C)
OFF malfunction (D)
| Engine speed | 2nd gear ratio x NO + 50 RPM or more or Less than 2nd gear ratio x NO - 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (D)
OFF malfunction (E) and (F)
| Engine speed | Less than 3rd gear ratio x NO + 50 RPM and 3rd gear ratio x NO - 50 RPM or more NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (E) AND (F)
OFF malfunction (G)
| Engine speed | 4th gear ratio x NO + 50 RPM or more or Less than 4th gear ratio x NO - 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (G)
OFF malfunction (H)
| Engine speed | 3rd gear ratio x NO + 50 RPM or more or Less than 3rd gear ratio x NO - 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (H)
OFF malfunction (I)
| Engine speed | Less than 4th gear ratio x NO + 50 RPM and 4th gear ratio x NO - 50 RPM or more NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (I)
OFF malfunction (J)
| When one of following secondary parameter conditions met, 2nd judgment is stopped. | (See secondary parameters and condition) |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (J)
[ON malfunction]
ON malfunction
| Engine speed | 2 x NO + 1,300 RPM or more NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART ON MALFUNCTION
| Related DTCs | P0756: Shift solenoid valve S2/OFF malfunction Shift solenoid valve S2/ON malfunction |
|---|---|
| Required sensors/Components | Shift solenoid valve S2 |
| Frequency of operation | Continuous |
| Duration | Less than 10 sec. |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY CHART
The following items are common to all conditions below.
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Transmission shift position | "D" |
| ECT | 55°C (131°F) or more and Less than 105°C (221°F) |
| IAT (only for malfunction) | 10°C (14°F) or more and Less than 70°C (158°F) |
| Shift solenoid "A" (S1) circuit Shift solenoid "B" (S2) circuit Torque converter clutch solenoid (SL) circuit | There is no malfunction in the circuits shown on the left |
| Battery voltage | 10V or more |
| Spark retard by KCS control | 0° CA or more |
TYPICAL ENABLING CONDITIONS CHART
OFF malfunction (A)
| ECM selected gear | 2nd |
|---|---|
| Throttle valve opening angle | 10% or more and Less than 35% |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (A)
OFF malfunction (B)
| Current ECM selected gear | 2nd |
|---|---|
| Last ECM selected gear | 1st |
| Throttle valve opening angle | 7% or more |
| THlast -TH current THlast Throttle valve opening angle at last ECM selected gear TH current: Throttle valve opening angle at current ECM selected gear | 20% or more and Less than 20% |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (B)
OFF malfunction (C), (D) and (E)
| Engine idling | OFF |
|---|---|
| Braking | OFF |
| ECM selected gear | 2nd |
| Throttle valve opening angle | 7% or more and Less than 60% |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (C), (D) AND (E)
OFF malfunction (F) and (G)
| Engine idling | OFF |
|---|---|
| Braking | OFF |
| ECM selected gear | 3rd |
| Throttle valve opening angle | 5% or more and Less than 60% |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (F) AND (G)
OFF malfunction (H)
| Engine idling | OFF |
|---|---|
| Braking | OFF |
| ECM selected gear | 4th |
| Throttle valve opening angle | 5% or more and Less than 60% |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (H)
OFF malfunction (I)
| Engine idling | ON |
|---|---|
| Braking | ON |
| Throttle valve opening angle (ECM selected gear 2nd) | 65 % or more or Less than 5 % |
| Throttle valve opening angle (ECM selected gear 3rd) | 65 % or more or Less than 3 % |
| Throttle valve opening angle (ECM selected gear 4th) | 65 % or more or Less than 3 % |
| THcurrent - TH2ndstep TH current: Throttle valve opening angle at current ECM selected gear TH2ndstep: Throttle valve opening angle at 2nd judgment step | Less than -10 % or 10 % or more |
| Closing change of throttle valve opening angle | Less than -10 % or 10% or more |
TYPICAL ENABLING CONDITIONS CHART OFF MALFUNCTION (I)
ON malfunction (A)
| ECM selected gear | 4th with lock up |
TYPICAL ENABLING CONDITIONS CHART ON MALFUNCTION (A)
ON malfunction (B)
| Current ECM selected gear | 2nd |
|---|---|
| Last ECM selected gear | 1st |
| Throttle valve opening angle | 7% or more |
| Closing change of throttle valve opening angle | 5% or more and Less than 5% |
| THlast -TH current THlast: Throttle valve opening angle at last ECM selected gear TH current: Throttle valve opening angle at current ECM selected gear | 20% or more and Less than 20% |
TYPICAL ENABLING CONDITIONS CHART ON MALFUNCTION (B)
ON malfunction (C), (D) and (E)
| Engine idling | OFF |
|---|---|
| Braking | OFF |
| ECM selected gear | 2nd |
| Throttle valve opening angle | 7% or more and Less than 60% |
TYPICAL ENABLING CONDITIONS CHART ON MALFUNCTION (C), (D) AND (E)
ON malfunction (F)
| Engine idling | OFF |
|---|---|
| Braking | OFF |
| ECM selected gear | 3rd |
| Throttle valve opening angle | 5% or more and Less than 60% |
TYPICAL ENABLING CONDITIONS CHART ON MALFUNCTION (F)
ON malfunction (G) and (H)
| Engine idling | OFF |
|---|---|
| Braking | OFF |
| ECM selected gear | 4th |
| Throttle valve opening angle | 5% or more and Less than 60% |
TYPICAL ENABLING CONDITIONS CHART ON MALFUNCTION (G) AND (H)
ON malfunction (I)
| Engine idling | ON |
|---|---|
| Braking | ON |
| Throttle valve opening angle (ECM selected gear 2nd) | 65 % or more or Less than 5 % |
| Throttle valve opening angle (ECM selected gear 3rd) | 65 % or more or Less than 3 % |
| Throttle valve opening angle (ECM selected gear 4th) | 65 % or more or Less than 3 % |
| THcurrent -TH2ndstep TH current: Throttle valve opening angle at current ECM selected gear TH2ndstep: Throttle valve opening angle at 2nd judgment step | Less than -10% or 10 % or more |
| Closing change of throttle valve opening angle | Less than -10 % or 10 % or more |
TYPICAL ENABLING CONDITIONS CHART ON MALFUNCTION (I)
[OFF malfunction]
Following conditions met (1) or (2)
(1): OFF malfunction (A)
(2): OFF malfunction (B), (C), (D), (E), (F), (G), (H)
(1)
It is necessary 2 judgments/driving cycle
1st judgment: temporary flag ON
2nd judgment: pending fault code ON
OFF malfunction (A)
| Engine speed | 1st gear ratio x NO + 0 RPM or more NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (A)
(2)
There are 2 judgment steps/driving cycle
1st judgment step: when following conditions OFF malfunction (B) met, temporary flag becomes ON.
It is necessary 2 judgments/driving cycle
2nd judgment step: when following conditions met, pending fault code becomes ON.
(OFF malfunction (C), (F) and (H)) or (OFF malfunction (D), (E), (G) and (H))
OFF malfunction (B)
| NElast-NEcurrent NElast: Engine speed at last ECM selected gear NE current: Engine speed at current ECM selected gear | Less than 51 2.5 RPM at throttle valve opening angle 40 % (Condition vary with throttle valve opening angle) |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (B)
OFF malfunction (C)
| Engine speed | 1st gear ratio x NO + 50 RPM or more NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (C)
OFF malfunction (D)
| Engine speed | 2nd gear ratio x NO + 50 RPM or more or Less than 2nd gear ratio x NO - 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (D)
OFF malfunction (E) and (F)
| Engine speed | 3rd gear ratio x NO + 50 RPM or more or Less than 3rd gear ratio x NO - 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (E) AND (F)
OFF malfunction (G)
| Engine speed | Less than 4th gear ratio x NO + 50 RPM and 4th gear ratio x NO - 50 RPM or more NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (G)
OFF malfunction (H)
| Engine speed | 3rd gear ratio x NO + 50 RPM or more or Less than 3rd gear ratio x NO - 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (H)
OFF malfunction (I)
| When one of following secondary parameter conditions met, 2nd judgment is stopped. | (See secondary parameters and condition) |
TYPICAL MALFUNCTION THRESHOLDS CHART OFF MALFUNCTION (I)
[ON malfunction]
Following conditions met (1) or (2)
(1): ON malfunction (A)
(2): ON malfunction (B), (C), (D), (E), (F), (G), (H)
(1)
ON malfunction (A)
| Engine speed | 3rd gear ratio x NO - 50 RPM or more and Less than 3rd gear ratio x NO + 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART ON MALFUNCTION (A)
(2)
There are 2 judgment steps/driving cycle
1st judgment step: when following conditions ON malfunction (B) met, temporary flag becomes ON.
It is necessary 2 judgments/driving cycle
2nd judgment step: when following conditions met, pending fault code becomes ON.
(ON malfunction (D), (F) and (H)) or (ON malfunction (C), (E), (F) and (G))
ON malfunction (B)
| NElast-NEcurrent NElast: Engine speed at last ECM selected gear NE current: Engine speed at current ECM selected gear | Less than 512.5 RPM at throttle valve opening angle 40 % (Condition vary with throttle valve opening angle) |
TYPICAL MALFUNCTION THRESHOLDS CHART ON MALFUNCTION (B)
ON malfunction (C)
| Engine speed | Less than 1st gear ratio x NO + 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART ON MALFUNCTION (C)
ON malfunction (D)
| Engine speed | Less than 2nd gear ratio x NO + 50 RPM and 2nd gear ratio x NO - 50 RPM or more NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART ON MALFUNCTION (D)
ON malfunction (E)
| Engine speed | 3rd gear ratio x NO + 50 RPM or more or Less than 3rd gear ratio x NO - 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART ON MALFUNCTION (E)
ON malfunction (F)
| Engine speed | 4th gear ratio x NO + 50 RPM or more or Less than 4th gear ratio x NO - 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART ON MALFUNCTION (F)
ON malfunction (G)
| Engine speed | Less than 3rd gear ratio x NO + 50 RPM and 3rd gear ratio x NO - 50 RPM or more NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART ON MALFUNCTION (G)
ON malfunction (H)
| Engine speed | 4th gear ratio x NO + 50 RPM or more or Less than 4th gear ratio x NO - 50 RPM NO: Transmission output speed |
TYPICAL MALFUNCTION THRESHOLDS CHART ON MALFUNCTION (H)
ON malfunction (I)
| When one of following secondary parameter conditions met, 2nd judgment is stopped. | (See secondary parameters and condition) |
TYPICAL MALFUNCTION THRESHOLDS CHART ON MALFUNCTION (I)
| Related DTCs | P0973: Shift solenoid valve S1 /Range check (Low resistance) P0974: Shift solenoid valve S1/Range check (High resistance) |
|---|---|
| Required sensors/Components | Shift solenoid valve S1 |
| Frequency of operation | Continuous |
| Duration | 2 times or more |
| MIL operation | 1 driving cycle |
| Sequence of operation | None |
MONITOR STRATEGY CHART
P0973: Range check (Low resistance)
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Solenoid | ON |
| Time after solenoid OFF to ON | More than 0.008 sec. |
TYPICAL ENABLING CONDITIONS CHART P0973: RANGE CHECK (LOW RESISTANCE)
P0974: Range check (High resistance)
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Solenoid | OFF |
| Time after solenoid ON to OFF | More than 0.008 sec. |
TYPICAL ENABLING CONDITIONS CHART P0974: RANGE CHECK (HIGH RESISTANCE)
P0973: Range check (Low resistance)
| Intelligent power MOS diagnosis fail signals detected while the solenoid is operated | Fail at solenoid resistance: 8 ohm or less |
TYPICAL MALFUNCTION THRESHOLDS CHART P0973: RANGE CHECK (LOW RESISTANCE)
P0974: Range check (High resistance)
| Intelligent power MOS diagnosis fail signals detected while the solenoid is not operated | Fail at solenoid resistance: 100 kohm or more |
TYPICAL MALFUNCTION THRESHOLDS CHART P0974: RANGE CHECK (HIGH RESISTANCE)
| Shift solenoid valve S1 | Resistance: 11 to 15 ohm at 20°C (68°F) |
COMPONENT OPERATING RANGE CHART
Scheme 118
Scheme 119
Scheme 120
Scheme 121
- INSPECT TRANSMISSION WIRE (S1) Disconnect the transmission wire connector from the transaxle. Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART (1 OF 3) Tester Connection 3 - Body ground Specified Condition 20°C (68°F) 11 to 15 ohm NG: Go to step 3 OK; Go to next step
- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) Connect the transmission connector to the transaxle. Disconnect the connector from the ECM. Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART (2 OF 3) Tester Connection Specified Condition 20°C (68°F) E4-11 (S1)- Body ground 11 to 15 ohm NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-225870-S07964031912006032300000) ) OK: REPLACE ECM (See «ECM (1ZZ-FE/2ZZ-GE)»(ref-225896-S34427753102006032300000) )
- INSPECT SHIFT SOLENOID VALVE (S1) Remove the shift solenoid valve S1. Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART (3 OF 3) Tester Connection Specified Condition 20°C (68°F) Solenoid Connector (S1) - Solenoid Body (S1) 11 to 15ohm Connect the positive (+) battery lead to the solenoid connector terminal, and the negative (-) battery lead to the solenoid body for checking the solenoid valve operation. OK: The solenoid makes an operating noise. NG: REPLACE SHIFT SOLENOID VALVE (S1) OK: REPAIR OR REPLACE «TRANSMISSION WIRE (A246E)»(ref-225917-S36042348902006032300000) )
| Related DTCs | P0976: Shift solenoid valve S2/Range check (Low resistance) P0977: Shift solenoid valve S2/Range check (High resistance) |
|---|---|
| Required sensors/Components | Shift solenoid valve S2 |
| Frequency of operation | Continuous |
| Duration | 2 times or more |
| MIL operation | 1 driving cycle |
| Sequence of operation | None |
MONITOR STRATEGY CHART
P0976: Range check (Low resistance)
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Solenoid | ON |
| Time after solenoid OFF to ON | More than 0.008 sec. |
TYPICAL ENABLING CONDITIONS CHART P0976: RANGE CHECK (LOW RESISTANCE)
P0977: Range check (High resistance)
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Solenoid | OFF |
| Time after solenoid ON to OFF | More than 0.008 sec. |
TYPICAL ENABLING CONDITIONS CHART P0977: RANGE CHECK (HIGH RESISTANCE)
P0976: Range check (Low resistance)
| Intelligent power MOS diagnosis fail signals detected while the solenoid is operated | Fail at solenoid resistance: 8 ohm or less |
TYPICAL MALFUNCTION THRESHOLDS CHART P0976: RANGE CHECK (LOW RESISTANCE)
P0977: Range check (High resistance)
| Intelligent power MOS diagnosis fail signals detected while the solenoid is not operated | Fail at solenoid resistance: 100 kohm or more |
TYPICAL MALFUNCTION THRESHOLDS CHART P0977: RANGE CHECK (HIGH RESISTANCE)
| Shift solenoid valve S2 | Resistance: 11 to 15 ohm at 20°C (68°F) |
COMPONENT OPERATING RANGE CHART
Scheme 122
Scheme 123
Scheme 124
Scheme 125
- INSPECT TRANSMISSION WIRE (S2) Disconnect the transmission wire connector from the transaxle. Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART (1 OF 3) Tester Connection Specified Condition 20°C (68°F) 6-Body ground 11 to 15ohm NG: Go to step 3 OK; Go to next step
- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) Connect the transmission connector to the transaxle. Disconnect the connector from the ECM. Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART (2 OF 3) Tester Connection Specified Condition 20°C (68°F) E4 - 9 (S2) - Body ground 11 to 15 ohm NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-225870-S07964031912006032300000) ) OK: REPLACE ECM (See «ECM (1ZZ-FE/2ZZ-GE)»(ref-225896-S34427753102006032300000) )
- INSPECT SHIFT SOLENOID VALVE (S2) Remove the shift solenoid valve S2. Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART (3 OF 3) Tester Connection Specified Condition 20°C (68°F) Solenoid Connector (S2) - Solenoid Body (S2) 11 to 15ohm Connect the positive (+) battery lead to the solenoid connector terminal, and the negative (-) battery lead to the solenoid body for checking the solenoid valve operation. OK: The solenoid makes an operating noise. NG: REPLACE SHIFT SOLENOID VALVE (S2) OK: REPAIR OR REPLACE «TRANSMISSION WIRE (A246E)»(ref-225917-S36042348902006032300000) )
Scheme 126
Scheme 127
The throttle pressure that is applied to the primary regulator valve (which modulates the line pressure) causes the solenoid valve SLT, under electronic control, to precisely and minutely modulate and generate the line pressure according the extent of the accelerator pedal depressed or the output of engine power.
This controls the line pressure and provides smooth shifting. Upon receiving a signal of the throttle valve opening angle, the ECM controls the line pressure by sending a predetermined (*) duty ratio to the solenoid valve, modulating the line pressure and generating throttle pressure.
(*): Duty Ratio The duty ratio is the ratio of the period of continuity in one cycle. For example, if A is the period of continuity in one cycle, and B is the period of non-continuity, then Duty Ratio=A/ (A+B) x 100 (%)
Scheme 128
| Related DTCs | P2716: Shift solenoid valve SLT/Range check |
|---|---|
| Required sensors/Components | Shift solenoid valve SLT |
| Frequency of operation | Continuous |
| Duration | 1 sec. |
| MIL operation | 1 driving cycle |
| Sequence of operation | None |
MONITOR STRATEGY CHART
Range check (A)
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Solenoid current cut status | Not cut |
| Battery voltage | 11V or more |
| Target current | 0.1 A or more |
TYPICAL ENABLING CONDITIONS CHART RANGE CHECK (A)
Range check (B)
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| The typical enabling condition is not available. |
TYPICAL ENABLING CONDITIONS CHART RANGE CHECK (B)
Range check (A)
| Solenoid status (SLT) from 1C | Fail (Open or short) (Output signal duty equal to 100%) |
TYPICAL MALFUNCTION THRESHOLDS CHART RANGE CHECK (A)
Range check (B)
| Hybrid IC status | Fail (Open or short) (Output signal duty equal to 100%) |
TYPICAL MALFUNCTION THRESHOLDS CHART RANGE CHECK (B)
| Shift solenoid valve SLT | Resistance: 5.0 to 5.6 ohm at 20°C (68°F) |
COMPONENT OPERATING RANGE CHART
Scheme 129
Scheme 130
Scheme 131
Scheme 132
- INSPECT TRANSMISSION WIRE (SLT) Disconnect the transmission wire connector from the transaxle. Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Specified Condition 20°C (68°F) 1 (SLT+)-4 (SLT-) 5.0 to 5.6 ohm Measure the resistance according to the value (s) in the table below. Standard (Check for short): TESTER CONNECTION SPECIFIED CONDITION CHART (CHECK FOR SHORT) Tester Connection Specified Condition 1 (SLT+) - Body ground 10 kohm or higher 4 (SLT-) - Body ground NG: Go to step 3 OK; Go to next step
- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) Connect the transmission wire connector to the transaxle. Disconnect the ECM connector. Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Specified Condition 20°C (68°F) E4 - 13 (SLT+) - E4 - 12 (SLT-) 5.0 to 5.6 ohm Measure the resistance according to the value (s) in the table below. Standard (Check for short): TESTER CONNECTION SPECIFIED CONDITION CHART (CHECK FOR SHORT) Tester Connection Specified Condition E4 - 13 (SLT+) - Body ground 10 kohm or higher E4 - 12 (SLT-) - Body ground NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-225870-S07964031912006032300000) ) OK: REPLACE ECM (See «ECM (1ZZ-FE/2ZZ-GE)»(ref-225896-S34427753102006032300000) )
- INSPECT SHIFT SOLENOID VALVE (SLT) Remove the shift solenoid valve (SLT). Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Specified Condition 20°C (68°F) 1-2 5.0 to 5.6 ohm Connect the positive (+) battery lead with a 21 W bulb to the terminal 2 of the solenoid valve connector and the negative (-) battery lead to the terminal 1 of the solenoid valve connector for checking the solenoid valve operation. OK: The solenoid makes an operating noise. NG: REPLACE SHIFT SOLENOID VALVE (SLT) OK: REPAIR OR REPLACE «TRANSMISSION WIRE (A246E)»(ref-225917-S36042348902006032300000) )
| Related DTCs | P2769: Shift solenoid valve SLV Range check (Low resistance) P2770: Shift solenoid valve SL/Range check (High resistance) |
|---|---|
| Required sensors/Components | Shift solenoid valve SL |
| Frequency of operation | Continuous |
| Duration | 1 time |
| MIL operation | 2 driving cycles |
| Sequence of operation | None |
MONITOR STRATEGY CHART
P2769: Range check (Low resistance)
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Time after solenoid OFF to ON | More than 0.008 sec. |
| Solenoid | ON |
TYPICAL ENABLING CONDITIONS CHART P2769: RANGE CHECK (LOW RESISTANCE)
P2770: Range check (High resistance)
| The monitor will run whenever the following DTCs are not present. | See LIST OF DISABLE A MONITOR |
|---|---|
| Time after solenoid ON to OFF Solenoid | More than 0.008 sec. OFF |
TYPICAL ENABLING CONDITIONS CHART P2770: RANGE CHECK (HIGH RESISTANCE)
P2769: Range check (Low resistance)
| Intelligent power MOS diagnosis fail signals detected while the solenoid is operated | Fail at solenoid resistance: 8 ohm or less |
TYPICAL MALFUNCTION THRESHOLDS CHART P2769: RANGE CHECK (LOW RESISTANCE)
P2770: Range check (High resistance)
| Intelligent power MOS diagnosis fail signals detected while the solenoid is not operated | Fail at solenoid resistance: 100 kohm or more |
TYPICAL MALFUNCTION THRESHOLDS CHART P2770: RANGE CHECK (HIGH RESISTANCE)
| Shift solenoid valve SL | Resistance: 11 to 13 ohm at 20°C (68°F) |
COMPONENT OPERATING RANGE CHART
Scheme 133
Scheme 134
Scheme 135
Scheme 136
- INSPECT TRANSMISSION WIRE (SL) Disconnect the transmission wire connector from the transaxle. Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART (1 OF 3) Tester Connection Specified Condition 20°C (68°F) 2 - Body ground 11 to 15 ohm NG: Go to step 3 OK; Go to next step
- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) Connect the transmission wire connector. Disconnect the ECM connector. Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART (2 OF 3) Tester Connection Specified Condition 20°C (68°F) E4-10 (SL)- Body ground 11 to 15ohm NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-225870-S07964031912006032300000) ) OK: REPLACE ECM (See «ECM (1ZZ-FE/2ZZ-GE)»(ref-225896-S34427753102006032300000) )
- INSPECT SHIFT SOLENOID VALVE (SL) Remove the shift solenoid valve SL. Measure the resistance according to the value (s) in the table below. Standard: TESTER CONNECTION SPECIFIED CONDITION CHART (3 OF 3) Tester Connection Specified Condition 20°C (68°F) Solenoid Connector (SL) - Solenoid Body (SL) 11 to 15ohm Connect the positive (+) battery lead to the solenoid connector terminal, and the negative (-) battery lead to the solenoid body for checking the solenoid valve operation. OK: The solenoid valve makes an operating noise. NG: REPLACE SHIFT SOLENOID VALVE (SL) OK: REPAIR OR REPLACE «TRANSMISSION WIRE (A246E)»(ref-225917-S36042348902006032300000) )