Subaru Workshop Service and Repair Manuals

ECU Connectors

CHECK ECU AND CLUTCH SWITCH VOLTAGE AND RESISTANCE

1.

With ignition switch "ON," measure voltage between ECU connector terminal and ground as follows:

Connector & terminal:

Voltage:

(F120)5-Ground

Below 1V (clutch released)

(F120)5-Ground

Above 8V (clutch depressed)

2.

Turn ignition "OFF" and disconnect clutch switch connector.

3.

Measure resistance between clutch switch connector terminals as follows:

Connector & terminal:

Resistance:

(F82)1-(F82)2

Below 1 Ohm (pedal released)

(F82)1-(F82)2

Infinite (pedal depressed)

CHECK ECU HARNESS

1.

With ignition "OFF," disconnect ECU connector.

2.

Measure resistance between ECU and clutch switch harness connector and between ECU connector and ground:

Connector & terminal:

Resistance:

(F120)5-(F82)2

Below 1 Ohm

(F119)1-(F82)1

Below 1 Ohm

(F120)10-(F82)1

Below 1 Ohm

(F120)5-Ground

Infinite

(F119)1-Ground

Below 10 Ohms

(F120)10-Ground

Below 10 Ohms