SAAB WIS ONLINE

INTAKE DOOR ACTUATOR

INTAKE DOOR ACTUATOR

TROUBLE SYMPTOM:

FRESH/RECIRC mode is not changed.

WIRING DIAGRAM:


CHECK FUSE.

Remove the No. 17 fuse in fuse & relay box.

Check the condition of fuse.

Is the fuse blown-out?

Yes

Replace the fuse.


No


CHECK SIGNAL VOLTAGE.

Change the air intake to RECIRC by pushing FRESH/RECIRC switch.

Measure the voltage between auto A/C control module and chassis ground.

Connector & terminal

(B282) No. 15 (+) — Chassis ground (−):

Is the voltage less than 1 V?

Yes


No

Repair the short circuit in harness for power supply line.


CHECK SIGNAL VOLTAGE.

Change the air intake to FRESH with pushing FRESH/RECIRC switch.

Measure the voltage between auto A/C control module and chassis ground.

Connector & terminal

(B282) No. 7 (+) — Chassis ground (−):

Is the voltage less than 1 V?

Yes


No

Repair the short circuit in harness for power supply line.


CHECK HARNESS CONNECTOR BETWEEN AUTO A/C CONTROL MODULE AND FRESH/RECIRC ACTUATOR.

Turn the ignition switch to OFF.

Disconnect the connector from auto A/C control module and intake door actuator.

Measure the resistance of harness between auto A/C control module and intake door actuator.

Connector & terminal

(B282) No. 15 — (B91) No. 1:

Is the resistance less than 1 Ω?

Yes


No

Repair the open circuit in harness between auto A/C control module and intake door actuator.


CHECK HARNESS CONNECTOR BETWEEN AUTO A/C CONTROL MODULE AND FRESH/RECIRC ACTUATOR.

Measure the resistance of harness between auto A/C control module and intake door actuator.

Connector & terminal

(B282) No. 7 — (B91) No. 2:

Is the resistance less than 1 Ω?

Yes


No

Repair the open circuit in harness between auto A/C control module and intake door actuator.


CHECK POOR CONTACT IN AUTO A/C CONTROL UNIT CONNECTOR.

Check poor contact in auto A/C control module connector.

Is there poor contact in connector?

Yes

Repair the connector.


No

Replace the auto A/C control module.