Subaru Legacy 2004 Service Manual page 2596

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AT:DTC P1840 TRANSMISSION FLUID PRESSURE SENSOR/SWITCH A CIR-
CUIT
DTC DETECTING CONDITION:
Front brake oil pressure switch malfunction.
TROUBLE SYMPTOM:
Excessive shift shock
NOTE:
Refer to DTC P0751 for diagnostic procedure. <Ref. to 5AT(diag)-65, DTC P0751 SHIFT SOLENOID "A"
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AU:DTC P1841 TRANSMISSION FLUID PRESSURE SENSOR/SWITCH B CIR-
CUIT
DTC DETECTING CONDITION:
Low coast brake oil pressure switch malfunction.
TROUBLE SYMPTOM:
Excessive shift shock
NOTE:
Refer to DTC P0771 for diagnostic procedure. <Ref. to 5AT(diag)-91, DTC P0771 SHIFT SOLENOID "E"
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AV:DTC P1842 TRANSMISSION FLUID PRESSURE SENSOR/SWITCH C CIR-
CUIT
DTC DETECTING CONDITION:
Input clutch oil pressure switch malfunction.
TROUBLE SYMPTOM:
Excessive shift shock.
NOTE:
Refer to DTC P0756 for diagnostic procedure. <Ref. to 5AT(diag)-72, DTC P0756 SHIFT SOLENOID "B"
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AW:DTC P1843 TRANSMISSION FLUID PRESSURE SENSOR/SWITCH D CIR-
CUIT
DTC DETECTING CONDITION:
Direct clutch oil pressure switch malfunction.
TROUBLE SYMPTOM:
Excessive shift shock.
NOTE:
Refer to DTC P0766 for diagnostic procedure. <Ref. to 5AT(diag)-85, DTC P0766 SHIFT SOLENOID "D"
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AX:DTC P1844 TRANSMISSION FLUID PRESSURE SENSOR/SWITCH E CIR-
CUIT
DTC DETECTING CONDITION:
High & low reverse clutch oil pressure switch malfunction.
TROUBLE SYMPTOM:
Excessive shift shock.
NOTE:
Refer to DTC P0761 for diagnostic procedure. <Ref. to 5AT(diag)-78, DTC P0761 SHIFT SOLENOID "C"
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5AT(diag)-137