SUBARU LEGACY 1997 Service Repair Manual

10BI1
CHECK INHIBITOR SWITCH TYPE.
: Is inhibitor switch type plastic body?
: Go to step10BI2.
: Go to step10BI4.
B2M1107A
10BI2CHECK HARNESS BETWEEN TCM AND
INHIBITOR SWITCH CONNECTOR.
1) Turn ignition switch to OFF.
2) Disconnect connectors from TCM and transmission.
3) Measure resistance of harness between TCM and
transmission harness connector.
: Connector & terminal
(B56) No. 9—(T7) No. 8:
Is the resistance less than 1Ω?
: Go to next.
: Repair harness and connector.
NOTE:
In this case, repair the following:

Open circuit in harness between ECM and inhibitor
switch connector

Poor contact in coupling connector (B12)
: Connector & terminal
(B56) No. 10—(T7) No. 9:
Is the resistance less than 1Ω?
: Go to next.
: Repair harness and connector.
NOTE:
In this case, repair the following:

Open circuit in harness between ECM and inhibitor
switch connector

Poor contact in coupling connector (B12)
: Connector & terminal
(B56) No. 8—(T7) No. 5:
Is the resistance less than 1Ω?
: Go to next.
: Repair harness and connector.
NOTE:
In this case, repair the following:

Open circuit in harness between ECM and inhibitor
switch connector.

Poor contact in coupling connector (B12)
300
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles

: Connector & terminal
(B54) No. 1—(T7) No. 6:
Is the resistance less than 1Ω?
: Go to next.
: Repair harness and connector.
NOTE:
In this case, repair the following:

Open circuit in harness between ECM and inhibitor
switch connector

Poor contact in coupling connector (B12)
: Connector & terminal
(B54) No. 2—(T7) No. 4:
Is the resistance less than 1Ω?
: Go to next.
: Repair harness and connector.
NOTE:
In this case, repair the following:

Open circuit in harness between ECM and inhibitor
switch connector

Poor contact in coupling connector (B12)
: Connector & terminal
(B54) No. 3—(T7) No. 11:
Is the resistance less than 1Ω?
: Go to next.
: Repair harness and connector.
NOTE:
In this case, repair the following:

Open circuit in harness between ECM and inhibitor
switch connector

Poor contact in coupling connector (B12)
: Connector & terminal
(B54) No. 4—(T7) No. 3:
Is the resistance less than 1Ω?
: Go to next step 4).
: Repair harness and connector.
NOTE:
In this case, repair the following:

Open circuit in harness between ECM and inhibitor
switch connector

Poor contact in coupling connector (B12)
301
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles

OBD0597A
4) Measure resistance of harness between TCM and
chassis ground.
: Connector & terminal
(B56) No. 9—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
(B56) No. 10—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
(B56) No. 8—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
(B54) No. 1—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
(B54) No. 2—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
(B54) No. 3—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
(B54) No. 4—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to step10BI3.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
302
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles

B2M1108
10BI3
CHECK INHIBITOR SWITCH.
Measure resistance between inhibitor switch connector
receptacle’s terminals.
: Terminals
No. 8—No. 10

Is the resistance less than 1Ωin“P”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
: Terminals
No. 9—No. 10

Is the resistance less than 1Ωin“R”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
: Terminals
No. 5—No. 10

Is the resistance less than 1Ωin“N”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
: Terminals
No. 6—No. 10

Is the resistance less than 1Ωin“D”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
: Terminals
No. 4—No. 10

Is the resistance less than 1Ωin“3”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
303
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles

: Terminals
No. 11—No. 10

Is the resistance less than 1Ωin“2”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
: Terminals
No. 3—No. 10

Is the resistance less than 1Ωin“1”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to step10BI6.
:Goto.
: Is there faulty connection in the selector
cable?
: Repair connection of selector cable.
: Replace inhibitor switch.
304
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles

OBD0596A
10BI4CHECK HARNESS BETWEEN TCM AND
TRANSMISSION HARNESS CONNECTOR.
1) Turn ignition switch to OFF.
2) Disconnect connectors from TCM and transmission har-
ness connector.
3) Measure resistance of harness between TCM and
transmission harness connector.
: Connector & terminal
(B56) No. 9—(B12) No. 3:
Is the resistance less than 1Ω?
: Go to next.
: Repair open circuit in harness between TCM and
transmission harness connector.
: Connector & terminal
(B56) No. 10—(B12) No. 2:
Is the resistance less than 1Ω?
: Go to next.
: Repair open circuit in harness between TCM and
transmission harness connector.
: Connector & terminal
(B56) No. 8—(B12) No. 1:
Is the resistance less than 1Ω?
: Go to next.
: Repair open circuit in harness between TCM and
transmission harness connector.
: Connector & terminal
(B54) No. 1—(B12) No. 8:
Is the resistance less than 1Ω?
: Go to next.
: Repair open circuit in harness between TCM and
transmission harness connector.
: Connector & terminal
(B54) No. 2—(B12) No. 7:
Is the resistance less than 1Ω?
: Go to next.
: Repair open circuit in harness between TCM and
transmission harness connector.
: Connector & terminal
(B54) No. 3—(B12) No. 6:
Is the resistance less than 1Ω?
: Go to next.
: Repair open circuit in harness between TCM and
transmission harness connector.
305
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles

: Connector & terminal
(B54) No. 4—(B12) No. 5:
Is the resistance less than 1Ω?
: Go to next step 4).
: Repair open circuit in harness between TCM and
transmission harness connector.
OBD0597A
4) Measure resistance of harness between TCM and
chassis ground.
: Connector & terminal
(B56) No. 9—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
(B56) No. 10—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
(B56) No. 8—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
(B54) No. 1—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
(B54) No. 2—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
(B54) No. 3—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to next.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
: Connector & terminal
306
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles

(B54) No. 4—Chassis ground:
Is the resistance more than 1 MΩ?
: Go to step10BI5.
: Repair ground short circuit in harness between
TCM and transmission harness connector.
B2M1286A
10BI5
CHECK INHIBITOR SWITCH.
Measure resistance between transmission harness con-
nector receptacle’s terminals.
: Connector & terminal
(T3) No. 3—No. 4

Is the resistance less than 1Ωin“P”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
: Connector & terminal
(T3) No. 2—No. 4

Is the resistance less than 1Ωin“R”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
: Connector & terminal
(T3) No. 1—No. 4

Is the resistance less than 1Ωin“N”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
: Connector & terminal
(T3) No. 8—No. 4

Is the resistance less than 1Ωin“D”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
307
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles

: Connector & terminal
(T3) No. 7—No. 4

Is the resistance less than 1Ωin“3”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
: Connector & terminal
(T3) No. 6—No. 4

Is the resistance less than 1Ωin“2”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to next.
:Goto.
: Connector & terminal
(T3) No. 5—No. 4

Is the resistance less than 1Ωin“1”
position?

Is the resistance more than 1 MΩin other
positions?
: Go to step10BI6.
:Goto.
: Is there faulty connection in the selector
cable?
: Repair connection of selector cable.
: Replace inhibitor switch.
308
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles

OBD0595A
10BI6
CHECK INPUT SIGNAL FOR TCM.
1) Turn ignition switch to OFF.
2) Connect connector to TCM and transmission.
3) Turn ignition switch to ON.
4) Measure voltage between TCM and chassis ground.
: Connector & terminal
(B56) No. 9 (+)—Chassis ground ():

Is the voltage less than1Vin“P”and
“N”positions?

Is the voltage more than8Vinother
positions?
: Go to next.
:Goto.
: Connector & terminal
(B56) No. 10 (+)—Chassis ground ():

Is the voltage less than1Vin“R”posi-
tion?

Is the voltage more than6Vinother
positions?
: Go to next.
:Goto.
: Connector & terminal
(B56) No. 8 (+)—Chassis ground ():

Is the voltage less than1Vin“N”and
“P”positions?

Is the voltage more than8Vinother
positions?
: Go to next.
:Goto.
: Connector & terminal
(B54) No. 1 (+)—Chassis ground ():

Is the voltage less than1Vin“D”posi-
tion?

Is the voltage more than6Vinother
positions?
: Go to next.
:Goto.
: Connector & terminal
(B54) No. 2 (+)—Chassis ground ():

Is the voltage less than1Vin“3”posi-
tion?

Is the voltage more than6Vinother
positions?
: Go to next.
:Goto.
309
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles