The ECM stores this DTC if Deceleration Sensor Zero Point Calibration of the CVT system has not been performed or has failed after system components, such as the ECM, have been replaced.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P158900 | Acceleration Sensor Learning Value | 1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other
DTC Detection Condition 1:
1.
The vehicle speed is 2 km/h (1.2 mph) or more. 2.
Deceleration Sensor Zero Point Calibration has not been completed. 3.
Immediately 4.
1 trip detection logic DTC Detection Condition 2:
1.
Deceleration Sensor Zero Point Calibration is performed. 2.
The learned values of Deceleration Sensor Zero Point Calibration are abnormal (out of normal range). 3.
Immediately 4.
1 trip detection logic |
DTC Detection Condition 1:
Deceleration Sensor Zero Point Calibration has not been performed. DTC Detection Condition 2: ·
Vehicle was not stable during Deceleration Sensor Zero Point Calibration. ·
Airbag sensor with ECU assembly ·
ECM |
Does not come on | DTC stored | SAE Code: P1589 |
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for at least 30 seconds.
Start the engine [A].
Turn the GTS on.
Drive the vehicle at 2 km/h (1 mph) or more [B].
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Enter the following menus: Powertrain / Engine / Trouble Codes [C].
Read the pending DTCs.
If a pending DTC is output, the system is malfunctioning.
If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P158900.
Check the DTC judgment result.
| GTS 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 |
If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system is malfunctioning.
If the judgment result is INCOMPLETE, perform steps [B] through [C] again.
[A] to [C]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.
Perform initialization after replacing any parts related to the any system.
Check that no DTCs are stored after performing initialization.
Read Freeze Frame Data using the GTS. Freeze Frame Data records the engine condition when malfunctions are detected. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
If CVT Oil Pressure Calibration is performed before Deceleration Sensor Zero Point Calibration, DTC P158900 will be stored. In this case, perform steps *1 through *5 to return the system to normal.
Always perform calibration with the vehicle on level ground (Inclination: 0 +/- 0.25°).
Do not shake or vibrate the vehicle during calibration.
Turn the ignition switch off.*1
Move the shift lever to P and apply the parking brake.*2
Connect the GTS to the DLC3.
Turn the ignition switch to ON.*3
Do not start the engine.
Enter the following menus: Powertrain / Transmission / Utility / Reset Memory.*4
| Tester Display |
|---|
| Reset Memory |
Enter the following menus: Powertrain / Engine / Utility / Deceleration Sensor Zero Point Calibration.*5
| Tester Display |
|---|
| Deceleration Sensor Zero Point Calibration |
When "Complete" is displayed on the screen, Deceleration Sensor Zero Point Calibration is complete.
If "Error" is displayed on the screen, there may be a malfunction in the airbag sensor with ECU assembly (yaw rate and acceleration sensor) circuit.
Shaking or vibrating the vehicle during Deceleration Sensor Zero Point Calibration may cancel calibration. If "Error" is displayed on the screen, perform step *5 again.
If "Error" is displayed on the GTS, read the DTCs using the GTS.
| Result | Proceed to |
|---|---|
| Deceleration Sensor Zero Point Calibration is completed normally | A |
| DTC P158900 is output | B |
A
B
Do not perform Reset Memory and clear the learned values (CVT system).
Turn the ignition switch off and wait at least 30 seconds.
Connect the GTS to the DLC3.
Turn the ignition switch to ON and wait at least 2 seconds.
Do not start the engine.
CVT Oil Pressure Sensor Zero Point Calibration is performed when the ignition switch is turned to ON (engine stopped). However, CVT Oil Pressure Sensor Zero Point Calibration will not be performed under the following conditions:
Oil pressure sensor value is 0.065 MPa (0.663 kgf/cm2, 9.43 psi) or higher.
CVT oil temperature is less than 0°C (32°F), or 120°C (248°F) or higher.
Enter the following menus: Powertrain / Transmission / Utility / CVT Oil Pressure Calibration
| Tester Display |
|---|
| CVT Oil Pressure Calibration |
When performing CVT Oil Pressure Calibration, the engine idle speed will increase.
When "Complete" is displayed on the screen, CVT Oil Pressure Calibration is complete.
The learned values cannot be cleared by only disconnecting and reconnecting the cable to the negative (-) battery terminal.
Start the engine and wait at least 5 seconds.
Start the engine with the shift lever in P.
After starting the engine, do not operate the accelerator pedal.
Perform the CVT Oil Pressure Calibration.
Check for DTCs again.
| Proceed to |
|---|
| NEXT |
NEXT
Check the airbag sensor with ECU assembly for any inclination, bracket deformation or installation clearance.
The airbag sensor with ECU assembly is installed correctly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Acceleration Sensor Voltage.
| Tester Display |
|---|
| Acceleration Sensor Voltage |
According to the display on the GTS, read the Data List.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Acceleration Sensor Voltage | Converted output voltage of G sensor | min.: 0 V
max.: 79.998 V |
·
2.31 to 2.69 V: Vehicle on level ground ·
1.88 to 2.5 V: Decelerating ·
2.5 to 3.11 V: Accelerating ·
Stuck at 1.87 V: G sensor malfunction ·
Stuck at 1.87 V: Communication malfunction |
- |
| Result | Proceed to |
|---|---|
| Data List value is normal | A |
| Data List value is not normal | B |
A
B
| Proceed to |
|---|
| NEXT |
NEXT
| Proceed to |
|---|
| NEXT |
NEXT