Impreza Coupe FWD F4-1820cc 1.8L SOHC (1995)
Torque Converter Clutch Solenoid: Testing and Inspection
MEASURE SIGNAL VOLTAGE FROM TCM
Measure Voltage Output From TCM
1.
Raise vehicle and support with safety stands.
CAUTION: On AWD models, raise all wheels off ground.
2.
Warm up engine and transmission.
3.
Move shift lever to "D" and slowly increase vehicle speed to 37 mph (60 km/h). Measure voltage output from TCM.
Connector & Terminal
Resistance
(B52) 7 - 13
0 Ohms
(B52) 11 - body
8.5Volts minimum (when wheels are locked up)
4.
Return engine to idle speed. Move shift lever to "N" and measure voltage output from TCM.
Connector & Terminal
Resistance
(B52) 7 - 13
0 Ohms
(B52) 11 - body
8.5Volts minimum
Select Monitor Function Mode F12
Condition: Start engine and increase vehicle speed to 37 mph (60 km/h). When wheels are locked up:
Specified data: LUDTY F12
95% (wheel locked up)
5% (release)
CHECK HARNESS AND CONNECTORS BETWEEN TCM AND DUTY SOLENOID B
Check Harness And Connectors Between TCM And Duty Solenoid B
1.
Unplug connector from TCM.
2.
Unplug connector from transmission.
3.
Measure resistance between TCM connector and transmission connector, and between TCM connector and body.
Connector & Terminal
Resistance
(B52) 7 - (B9)
0 Ohms
(B52) 7 - body
I M Ohm, minimum
CHECK DUTY SOLENOID B GROUND LINE
