1997 SUBARU LEGACY obd

: Connector & terminal
(B56) No. 3—(B94) No. 3:
Is the resistance less than 1Ω?
: Go to next step 4).
: Repair open circuit in harness between TCM and
CCM connector.
OBD0515A
4) Measure resistance of harness between TCM and
chassis ground.
: Connector & terminal
(B56) No. 3—Chassis ground:
Is the resistance less than 10Ω?
: Repair short circuit in harness between TCM and
CCM connector.
: Go to step10CZ2.
OBD0513A
10CZ2
CHECK INPUT SIGNAL FOR TCM.
1) Connect connector to TCM and CCM.
2) Lift-up the vehicle or set the vehicle on free rollers.
CAUTION:
On AWD models, raise all wheels off ground.
3) Start the engine.
4) Cruise control main switch to ON.
5) TCS OFF switch to ON. (with TCS models only)
6) Move selector lever to“D”and slowly increase vehicle
speed to 50 km/h (31 MPH).
7) Cruise control set switch to ON.
8) Measure voltage between TCM and chassis ground.
: Connector & terminal
(B56) No. 3 (+)—Chassis ground ():
Is the resistance less than 1 V?
: Go to next.
: Check cruise control set circuit. [T7A0].>
: Is there poor contact in TCM connector?
: Repair poor contact in TCM connector.
: Replace TCM.
412
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles

OBD0191
M: DTC P0125
—INSUFFICIENT COOLANT TEMPERATURE
FOR CLOSED LOOP FUEL CONTROL—
WIRING DIAGRAM:
B2M0539
NOTE:
Check insufficient coolant temperature for closed loop fuel
control.

437
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostic Chart with Trouble Code for RHD Vehicles

OBD0199
N: DTC P0130
—FRONT OXYGEN SENSOR CIRCUIT
MALFUNCTION—
WIRING DIAGRAM:
B2M1150
NOTE:
Check front oxygen sensor circuit.

438
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostic Chart with Trouble Code for RHD Vehicles

OBD0209
O: DTC P0133
—FRONT OXYGEN SENSOR CIRCUIT SLOW
RESPONSE—
WIRING DIAGRAM:
B2M1150
NOTE:
Check front oxygen sensor circuit.

439
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostic Chart with Trouble Code for RHD Vehicles

OBD0212
P: DTC P0135
—FRONT OXYGEN SENSOR HEATER
CIRCUIT MALFUNCTION—
WIRING DIAGRAM:
B2M1151
NOTE:
Check front oxygen sensor heater circuit.

440
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostic Chart with Trouble Code for RHD Vehicles

OBD0220
Q: DTC P0136
—REAR OXYGEN SENSOR CIRCUIT
MALFUNCTION—
WIRING DIAGRAM:
B2M1292
NOTE:
Check rear oxygen sensor circuit.

441
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostic Chart with Trouble Code for RHD Vehicles

OBD0229
R: DTC P0139
—REAR OXYGEN SENSOR CIRCUIT SLOW
RESPONSE—
WIRING DIAGRAM:
B2M1292
NOTE:
Check rear oxygen sensor circuit.

442
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostic Chart with Trouble Code for RHD Vehicles

OBD0232
S: DTC P0141
—REAR OXYGEN SENSOR HEATER
CIRCUIT MALFUNCTION—
WIRING DIAGRAM:
B2M1293
NOTE:
Check rear oxygen sensor heater circuit.

443
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostic Chart with Trouble Code for RHD Vehicles