DTC P1756 LINE PRESSURE CONTROL FUNCTION — Description / Reference Values / On Board Diagnosis Logic / DTC Confirmation Procedure
AT-7087prose procedureDescription
NOTE
Line pressure is controlled by a signal sent from TCM to generate the line pressure necessary for torque transmission by steel belt. The pressure is returned from the hydraulic sensor to TCM, and it is regulated continuously to maintain the target oil pressure.
CONSULT-II Reference Value in Data Monitor Mode
NOTE
Remarks: Specification data are reference values.
LINE PRES SOL
ConditionVehicle is being driven.
SpecificationApprox. 0 - 1.0A
*LINE PRES SOL
ConditionVehicle is being driven.
SpecificationApprox. 0 - 1.0A
TCM Terminals and Reference Value
NOTE
Remarks: Specification data are reference values.
6
Wire colorW/G
ItemLine pressure control solenoid valve
Condition"D" positions, and accelerator pedal and brake pedal released after driving
Judgement standard (Approx.)4 - 6V
On Board Diagnosis Logic
CONSULT-II screen text
IdentifierL/P CON/FNCTN
Malfunction is detected when ...TCM detects that the difference between target value and actual value exceeds the specified value continuously for more than the specified time.
Check items (Possible cause)Line pressure solenoid valve
GST (OBD-II)
IdentifierP1756
Malfunction is detected when ...TCM detects that the difference between target value and actual value exceeds the specified value continuously for more than the specified time.
Check items (Possible cause)Line pressure solenoid valve
MI / NO TOOLS code
IdentifierMI Code No. 1756
Malfunction is detected when ...TCM detects that the difference between target value and actual value exceeds the specified value continuously for more than the specified time.
Check items (Possible cause)Line pressure solenoid valve
Diagnostic Trouble Code (DTC) Confirmation Procedure
CAUTION
Always drive vehicle at a safe speed.
NOTE
If "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test.
NOTE
After the repair, perform the following procedure to confirm that the malfunction is eliminated.
With CONSULT-II
- 1Turn ignition switch "ON" and select "DATA MONITOR" mode for "ENGINE" with CONSULT-II.
SAT651J - 2Start engine and maintain the following conditions for at least 5 consecutive seconds. O/P PULLY SIG: 10 km/h (6 MPH) or more THRTL POS SEN: More than 0.7 - 0.8V Selector lever: D position ENG SPEED: 500 rpm or more FLUID TEMP SE: 20 - 99°C (68 - 210°F) If the check result is NG, replace CVT assembly.