1997 SUBARU LEGACY Service Repair Manual

Page 3169 of 3342

SUBARU LEGACY 1997  Service Repair Manual B6M0285
1. CHECK OPERATION OF SPEEDOMETER.
Make sure that speedometer indicates the vehicle speed
by driving the vehicle.
B6M0247B
2. CHECK INPUT SIGNAL FOR CRUISE CONTROL
MODULE.
WARNING:
Be careful

Page 3170 of 3342

SUBARU LEGACY 1997  Service Repair Manual G2M0931
B6M0287
3) Start the engine.
4) Shift on the gear position, and keep the vehicle speed
at constant.
5) Measure signal voltage.
Specified voltage (V): 2 V, or more
NOTE:
If the vehicle speed i

Page 3171 of 3342

SUBARU LEGACY 1997  Service Repair Manual B6M0248B
5) Measure resistance of harness connector between
cruise control module and body to make sure that circuit
does not short.
Connector & terminal / Specified resistance:
(B94) No. 19—Body /

Page 3172 of 3342

SUBARU LEGACY 1997  Service Repair Manual B6M0196
E: TROUBLE CODE 14 AND 22
—SET/COAST SWITCH, RESUME/ACCEL
SWITCH, CANCEL SWITCH—
DIAGNOSIS:
Short circuit inside the SET SW and RESUME SW.
TROUBLE SYMPTOM:
Cruise control cannot be set.

Page 3173 of 3342

SUBARU LEGACY 1997  Service Repair Manual B6M0536
1. CHECK SHORT CIRCUIT OF CRUISE CONTROL
COMMAND SWITCH.
1) Turn ignition switch to ON.
2) Measure voltage between each terminal of connector
(S1).
Terminals / Specified resistance:
SET switch

Page 3174 of 3342

SUBARU LEGACY 1997  Service Repair Manual B6M0198
F: TROUBLE CODE 23 AND 24
—CRUISE CONTROL MODULE BUILT-IN
RELAY, CPU RAM—
DIAGNOSIS:
Welding of built-in relay of cruise control module.
Failure of built-in CPU RAM of cruise control mod

Page 3175 of 3342

SUBARU LEGACY 1997  Service Repair Manual B6M0200
G: TROUBLE CODE 31, 32 AND 33
—VACUUM PUMP, AIR VALVE, RELEASE
VA LV E—
DIAGNOSIS:
Open or poor contact of vacuum pump motor, air valve
and release valve.
TROUBLE SYMPTOM:
Cruise control

Page 3176 of 3342

SUBARU LEGACY 1997  Service Repair Manual B6M0271
1. MEASURE RESISTANCE OF VACUUM PUMP
MOTOR, AIR VALVE AND RELEASE VALVE.
1) Disconnect connector of vacuum pump and valve.
2) Measure resistance of vacuum pump motor, air valve
and release val