Subaru Legacy 2005 Service Manual page 2545

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
8 CHECK SWITCH FOR SPORT MODE AND
MANUAL MODE.
1) Shift the select lever to "P" range.
2) Measure the resistance between harness
connector terminals of switch for SPORT mode
and manual mode.
Terminal
(B116) No. 7 — No. 8
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)-62, DTC P0751 SHIFT SOLENOID "A"
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AU: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)-67, DTC P0756 SHIFT SOLENOID "B"
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AV: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)-77, DTC P0766 SHIFT SOLENOID "D"
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AW: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)-72, DTC P0761 SHIFT SOLENOID "C"
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check
Is the resistance more than 1
MΩ?
5AT(diag)-127
Yes
Check the body Replace the select
integrated module. lever assembly.
<Ref. to CS-22,
Select Lever.>
No