Page 2137 of 2890
WIRING DIAGRAM:
RHD Model
B2M1021
10BV1
CHECK DTC P1402 ON DISPLAY.
: Does the Subaru select monitor or OBD-II
general scan tool indicate DTC P1402?
: Inspect DTC P1402 using“10. Diagnostics Chart
with Trouble Code 2-7 [T1000]”.
NOTE:
In this case, it is not necessary to inspect this trouble.
: Replace fuel sending unit and fuel sub meter unit.
369
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostics Chart with Trouble Code
Page 2138 of 2890
BW:—AT/MT IDENTIFICATION CIRCUIT
MALFUNCTION [MT VEHICLES]—
10BW1Check harness between ECM connector and
engine grounding terminal.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES.
WIRING DIAGRAM:
B2M0617
370
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostics Chart with Trouble Code
Page 2139 of 2890
B2M0618A
10BW1CHECK HARNESS BETWEEN ECM CON-
NECTOR AND ENGINE GROUNDING
TERMINAL.
1) Turn ignition switch to ON.
2) Measure voltage between ECM and chassis ground.
: Connector & terminal
(B84) No. 81 (+)—Chassis ground ( ):
Is the voltage more than 2 V?
: Repair harness and connector.
NOTE:
In this case, repair the following:
Open circuit in harness between ECM connector and
engine grounding terminal
Poor contact in engine grounding terminal
Poor contact in coupling connector (B22)
: Go to next.
: Is there poor contact in ECM connector?
: Repair poor contact in ECM connector.
: Contact with SOA service.
NOTE:
Inspection by DTM is required, because probable cause is
deterioration of multiple parts.
371
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostics Chart with Trouble Code
Page 2140 of 2890
1. Supplemental Restraint System
“Airbag”
Airbag system wiring harness is routed near the transmis-
sion control module (TCM).
All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuit.
Be careful not to damage Airbag system wiring har-
ness when performing diagnostics and servicing the
TCM.
B3M0173A
2. Pre-inspection
1. ATF LEVEL
Make sure that ATF level is in the specification.
B3M0174A
2. FRONT DIFFERENTIAL OIL LEVEL
Make sure that front differential oil level is in the specifica-
tion.
2
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
1. Supplemental Restraint System“Airbag”- 2. Pre-inspection
Page 2141 of 2890
1. Supplemental Restraint System
“Airbag”
Airbag system wiring harness is routed near the transmis-
sion control module (TCM).
All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuit.
Be careful not to damage Airbag system wiring har-
ness when performing diagnostics and servicing the
TCM.
B3M0173A
2. Pre-inspection
1. ATF LEVEL
Make sure that ATF level is in the specification.
B3M0174A
2. FRONT DIFFERENTIAL OIL LEVEL
Make sure that front differential oil level is in the specifica-
tion.
2
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
1. Supplemental Restraint System“Airbag”- 2. Pre-inspection
Page 2142 of 2890

G3M0717
3. OPERATION OF SHIFT SELECTOR LEVER
WARNING:
Stop the engine while checking operation of selector
lever.
1) Check that selector lever does not move from“N”to“R”
without pushing the button.
2) Check that selector lever does not move from“R”to“P”
without pushing the button.
3) Check that selector lever does not move from“P”to“R”
without pushing the button.
4) Check that selector lever does not move from“3”to“2”
without pushing the button.
3. Electrical Components Location
1. SENSOR AND CONTROL MODULE
B3M0178B
1Throttle position sensor
2Dropping resistor
3Vehicle speed sensor 2
4Inhibitor switch
5ECM
6Vehicle speed sensor 1 (AWD)
7Vehicle speed sensor 1 (FWD)
8TCM
9Data link connector (for Subaru select monitor only)
10Data link connector (for Subaru select monitor and OBD-II
general scan tool)
11Diagnosis connector
12Diagnosis terminal
13AT OIL TEMP indicator light
(AT diagnostic indicator light)
3
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
2. Pre-inspection - 3. Electrical Components Location
Page 2143 of 2890

G3M0717
3. OPERATION OF SHIFT SELECTOR LEVER
WARNING:
Stop the engine while checking operation of selector
lever.
1) Check that selector lever does not move from“N”to“R”
without pushing the button.
2) Check that selector lever does not move from“R”to“P”
without pushing the button.
3) Check that selector lever does not move from“P”to“R”
without pushing the button.
4) Check that selector lever does not move from“3”to“2”
without pushing the button.
3. Electrical Components Location
1. SENSOR AND CONTROL MODULE
B3M0178B
1Throttle position sensor
2Dropping resistor
3Vehicle speed sensor 2
4Inhibitor switch
5ECM
6Vehicle speed sensor 1 (AWD)
7Vehicle speed sensor 1 (FWD)
8TCM
9Data link connector (for Subaru select monitor only)
10Data link connector (for Subaru select monitor and OBD-II
general scan tool)
11Diagnosis connector
12Diagnosis terminal
13AT OIL TEMP indicator light
(AT diagnostic indicator light)
3
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
2. Pre-inspection - 3. Electrical Components Location
Page 2144 of 2890
B2M0155AOBD0046A
B2M0211AB3M0182A
B3M0183AB3M0184A
B3M0185AB3M0443D
4
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
3. Electrical Components Location