K313 CVT CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM P1589 Acceleration Sensor Learning Value
DESCRIPTION
The ECM stores DTC P1589 if deceleration sensor zero point calibration is not performed or failed after system components such as the ECM are replaced.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P1589 | 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.
- 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.
- 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 stabilized during deceleration sensor zero point calibration. ·
Airbag ECU assembly (Yaw rate and acceleration sensor) ·
ECM |
Does not come on | DTC stored |
CAUTION / NOTICE / HINT
- NOTICE:
- ·
Perform initialization when parts related to the continuously variable transaxle are replaced.
Click hereDrivetrain>K313 CVT>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION
·Check that no DTCs are stored after performing initialization.
Click hereDrivetrain>K313 CVT>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>DTC CHECK / CLEAR
PROCEDURE
- NOTICE:
- ·
If CVT oil pressure calibration is performed before deceleration sensor zero point calibration, DTC P1589 will be stored. In this case, perform steps *1, *2, *3, *4 and *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
- NOTICE:
-
Do not start the engine.
Enter the following menus: Powertrain / Engine and ECT / Utility / Reset Memory.*4
- Powertrain > Engine and ECT > Utility
-
Tester Display Reset Memory - 50005 234 176
Enter the following menus: Powertrain / ECT / Utility / Deceleration Sensor Zero Point Calibration.*5
- Powertrain > Engine and ECT > Utility
-
Tester Display Deceleration Sensor Zero Point Calibration - 50005 234 2123
- HINT:
- ·
When "Complete" is displayed on the GTS, deceleration sensor zero point calibration is complete.
·If "Error" is displayed on the GTS, the deceleration sensor circuit may be malfunctioning.
·Shaking or vibrating the vehicle during deceleration sensor zero point calibration may cancel calibration. If "Error" is displayed on the GTS, perform step *5 again.
If "Error" is displayed on the GTS, read the DTCs using the GTS.
- Result:
Result Proceed to Deceleration sensor zero point calibration is completed normally A DTC P1589 is output B
A
B
- NOTICE:
-
Do not clear the learned values by performing Reset Memory.
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.
- NOTICE:
-
Do not start the engine.
- HINT:
-
CVT oil pressure calibration is performed with the ignition switch ON (engine stopped). However, calibration cannot be performed under the following conditions:
- ·
Oil pressure sensor value is 0.065 MPa (0.663 kgf/cm2, 9.43 psi) or more.
·CVT oil temperature is 0°C (32°F) or less or 120°C (248°F) or more.
Enter the following menus: Powertrain / Engine and ECT / Utility.
Start the engine and wait at least 5 seconds.
- NOTICE:
- ·
Start the engine with the shift lever in P.
·After starting the engine, do not operate the accelerator pedal.
Enter the following menus: Powertrain / Engine and ECT / Utility / CVT Oil Pressure Calibration
- HINT:
- ·
During CVT oil pressure calibration, the engine idle speed will increase.
·When "Complete" is displayed on the GTS, CVT oil pressure calibration is complete.
·The learned values cannot be cleared by only disconnecting and reconnecting the cable to the negative (-) battery terminal.
- Powertrain > Engine and ECT > Utility
-
Tester Display CVT Oil Pressure Calibration - 50005 234 2122
Check for DTCs again.
- Powertrain > Engine and ECT > Trouble Codes
- 50001 234
- Result:
Proceed to NEXT
NEXT
Check the airbag ECU assembly (yaw rate and acceleration sensor) for any inclination, bracket deformation or installation clearance.
- OK:
The airbag ECU assembly (yaw rate and acceleration sensor) is installed correctly.
- Result:
Proceed to OK NG
OK
NG
Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>INSTALLATION
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List / Primary.
According to the display on the GTS, read the Data List.
- Powertrain > Engine and ECT > Data List
-
Tester Display Measurement Item Range Normal Condition Diagnostic Note G Sensor Converted output voltage of G sensor min.: 0 V
max.: 79.998 VDisplays converted voltage of G sensor
·2.31 V to 2.69 V: Vehicle on level ground
·1.88 V to 2.5 V: Decelerating
·2.5 V to 3.11 V: Accelerating
·Set to 1.87 V: G sensor malfunction
·Set to 1.87 V: Communication malfunction
-
- Powertrain > Engine and ECT > Data List
-
Tester Display G Sensor - 50003 234 410
- Result:
Result Proceed to Data List value is normal A Data List value is not normal B
A
B
Replace the ECM.
Click hereEngine / Hybrid System>2ZR-FE ENGINE CONTROL>ECM>COMPONENTS
- Result:
Proceed to NEXT
NEXT
Replace the airbag ECU assembly (yaw rate and acceleration sensor).
Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>COMPONENTS
- Result:
Proceed to NEXT
NEXT