DTC P1791 LINE PRESSURE SENSOR — Description / Reference Values / On Board Diagnosis Logic / DTC Confirmation Procedure
AT-7106prose procedureDescription
NOTE
Oil pressure in the output pulley is detected, and then sent to TCM to control the line pressure.
CONSULT-II Reference Value in Data Monitor Mode
NOTE
Remarks: Specification data are reference values.
LINE PRES SEN
ConditionVehicle is being driven.
SpecificationApproximately 0.5 - 5.5 Mpa
TCM Terminals and Reference Value
NOTE
Remarks: Specification data are reference values.
27
Wire colorB/R
ItemLine pressure sensor
ConditionWhen setting selector lever to other position
Judgement standard (Approx.)0 MPa
27
Wire colorB/R
ItemLine pressure sensor
ConditionWhen setting selector lever to "N" position
Judgement standard (Approx.)2 MPa
On Board Diagnosis Logic
CONSULT-II screen text
IdentifierLINE PRESSURE SEN
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)Harness or connectors (The solenoid circuit is open or shorted.); Line pressure sensor
GST (OBD-II)
IdentifierP1791
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)Harness or connectors (The solenoid circuit is open or shorted.); Line pressure sensor
MI / NO TOOLS code
IdentifierMI Code No. 1791
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)Harness or connectors (The solenoid circuit is open or shorted.); Line pressure sensor
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. If the check result is NG, go to "Diagnostic Procedure", AT-7109.
SAT651J