SAAB WIS ONLINE

DTC 37 ACTUATOR MOTOR CLUTCH

DTC 37 ACTUATOR MOTOR CLUTCH

DIAGNOSIS:

Open or poor contact of cruise control actuator motor clutch.

TROUBLE SYMPTOM:

Cruise control cannot be set. (Cancelled immediately.)

WIRING DIAGRAM:


CHECK POWER SUPPLY.

Turn the ignition switch to OFF.

Disconnect the harness connector from cruise control actuator.

Turn the ignition switch to ON.

Turn the curise control main switch to ON.

Measure the voltage between cruise control actuator harness connector terminal and chassis ground.

Terminals

(B7) No. 4 (+) — Chassis ground (−):

Is the voltage more than 10 V?

Yes


No

Check the harness for open or short between cruise control module and cruise control actuator.


CHECK GROUND CIRCUIT OF ACTUATOR.

Turn the ignition switch and curise control main switch to OFF.

Measure the resistance between cruise control actuator harness connector terminal and chassis ground.

Terminals

(B7) No. 6 — Chassis ground:

Is the resistance less than 10 Ω?

Yes


No

Repair the harness.


MEASURE RESISTANCE OF ACTUATOR CLUTCH.

Measure the resistance of cruise control actuator clutch.

Terminals

No. 3 — No. 6:

Is the resistance approximately 39 Ω?

Yes


No

Replace the cruise control actuator.


CHECK HARNESS BETWEEN ACTUATOR AND CRUISE CONTROL MODULE.

Disconnect the harness connector from cruise control module.

Measure the resistance between cruise control module harness connector terminal and cruise control actuator harness connector terminal.

Connector & terminal

(B7) No. 2 — (B94) No. 13:

Is the resistance less than 10 Ω?

Yes


No

Repair the harness.


CHECK HARNESS BETWEEN ACTUATOR AND CRUISE CONTROL MODULE.

Measure the resistance between cruise control module harness connector terminal and cruise control actuator harness connector terminal.

Connector & terminal

(B7) No. 3 — (B94) No. 14:

Is the resistance less than 10 Ω?

Yes

Replace the cruise control module.


No

Repair the harness.