Page 2197 of 2453
5AT(diag)-80
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Y: DTC P0768 SOLENOID “D” ELECTRICAL
DTC DETECTING CONDITION:
The output signal circuit of direct clutch solenoid is open or shorted.
TROUBLE SYMPTOM:
Locked to 4th gear.
WIRING DIAGRAM:
AT-02990
B54
22
B11
TCM
B54
B11
125678
131415169101112
34
17181920
TRANSMISSION
12789563410 11 1219 20 2113 14 15 16 17 18222324
T4
T6
12586910 113412
T6
7
E
514
10
16
Step Check Yes No
1CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 22 — (B11) No. 16:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
Is the resistance less than 1
Ω?
Go to step 2.Repair the open
circuit of harness
between TCM con-
nector and trans-
mission connector.
Page 2199 of 2453
5AT(diag)-82
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Z: DTC P0771 SHIFT SOLENOID “E” PERFORMANCE OR STUCK OFF
DTC DETECTING CONDITION:
Output signal value of low coast brake solenoid and oil pressure does not match.
TROUBLE SYMPTOM:
•Locked to 2nd gear.
•Engine brake does not function at 1st or 2nd of manual mode.
WIRING DIAGRAM:
AT-02939
B54
B11
TCM
B54
B11
125678
131415169101112
34
17181920
TRANSMISSION
12789563410 11 1219 20 2113 14 15 16 17 18222324
T4
T6
12586910 113412
T6
7
E
514
T5
1512
139
110
123 68910 11 12 13 14451516
T5
7
Page 2202 of 2453
5AT(diag)-85
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AA:DTC P0773 SHIFT SOLENOID “E” ELECTRICAL
DTC DETECTING CONDITION:
Output signal circuit of low coast brake solenoid is open or shorted.
TROUBLE SYMPTOM:
•Locked to 2nd gear.
•Engine brake does not function at 1st or 2nd of manual mode.
WIRING DIAGRAM:
AT-02991
B54
15
B11
TCM
B54
B11
125678
131415169101112
34
17181920
TRANSMISSION
12789563410 11 1219 20 2113 14 15 16 17 18222324
T4
T6
12586910 113412
T6
7
E
514
1
13
Page 2205 of 2453
5AT(diag)-88
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AB:DTC P0801 REVERSE INHIBIT CONTROL CIRCUIT
DTC DETECTING CONDITION:
Shift lock solenoid malfunction, open or short reverse inhibitor control circuit
TROUBLE SYMPTOM:
•Gear is shifted from “N” range to “R” range during driving at 20 km/h (12MPH) or more.
•Gear can not be shifted from “N” range to “R” range though the vehicle is parked.
WIRING DIAGRAM:
AT-01536
TCM
15
B55
E
B116
B55
B116
34
BODY INTEGRATED MODULE
SHIFT LOCKSOLENOID
12341011 121920 21135614 1578916 17 1822 23 24
12345678910
Page 2208 of 2453
5AT(diag)-91
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AC:DTC P0817 STARTER DISABLE CIRCUIT
DTC DETECTING CONDITION:
Open or short in P/N signal output circuit
TROUBLE SYMPTOM:
•Engine can be started on other than “P” or “N” range
•Engine can not be started on “P” or “N” range.
WIRING DIAGRAM:
AT-03288
B136
B55
31
19
ECM
TCM
B55
12341011 121920 21135614 1578916 17 1822 23 24
B136
16101112131415252430
9871718192028212223293231
123456
2726333435
Step Check Yes No
1CHECK DTC OF TCM.Is DTC of Transmission Range
Sensor Circuit (PRNDL Input)
detected?
Pe r for m t h e d ia g -
nosis according to
DTC.
Go to step 2.
2CHECK ECM.Is the communication between
Subaru Select Monitor and
ECM normal?
Go to step 3.Perform the diag-
nosis according to
DTC concerning
ECM.
Page 2210 of 2453
5AT(diag)-93
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AD:DTC P0882 TCM POWER INPUT SIGNAL LOW
DTC DETECTING CONDITION:
Malfunction of PVIGN power supply relay or open, short circuit of PVIGN power supply circuit.
TROUBLE SYMPTOM:
Gear is not changed.
WIRING DIAGRAM:
AT-03294
8710
B54
B357
TCM
B54
B357
12789563410 11 1219 20 2113 14 15 16 17 18222324
MAIN SBF SBF-8
NO.12
E
32
41
1234
BATTERY
IGNITIONSWITCH
1234
1234
RELAYP-VING
Step Check Yes No
1CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the MAIN SBF, SBF 8 and fuse
(No. 12), and then check those are not blown
out.
Is the fuse blown out? Replace the fuse.
If the replaced
fuse has blown out
easily, repair the
short circuit of har-
ness of each fuse.
Go to step 2.
Page 2212 of 2453
5AT(diag)-95
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AE:DTC P0957 BACKUP LIGHT RELAY CIRCUIT LOW
DTC DETECTING CONDITION:
Short circuit of back-up light relay output circuit
TROUBLE SYMPTOM:
Back-up light does not illuminate in “R” range.
WIRING DIAGRAM:
AT-03295
11
B55
B356
TCM
B55
BATTERY
MAIN SBF SBF-8
IGNITIONRELAY
BACK-UP LIGHT CIRCUIT
NO.18
E
41
32
12341011 121920 21135614 1578916 17 1822 23 24
B356
1234
BACK-UP LIGHTRELAY
Page 2214 of 2453
5AT(diag)-97
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AF:DTC P0958 BACKUP LIGHT RELAY CIRCUIT HIGH
DTC DETECTING CONDITION:
Backup light relay malfunction, or open/short circuit in back-up light relay output circuit
TROUBLE SYMPTOM:
•Back-up light does not illuminate in “R” range.
•Back-up light always illuminate except in “R” range.
WIRING DIAGRAM:
AT-03295
11
B55
B356
TCM
B55
BATTERY
MAIN SBF SBF-8
IGNITIONRELAY
BACK-UP LIGHT CIRCUIT
NO.18
E
41
32
12341011 121920 21135614 1578916 17 1822 23 24
B356
1234
BACK-UP LIGHTRELAY