SAAB WIS ONLINE

B1100

Read the instructions below then start the fault diagnostic procedure.

Symptom: Cars with 1-speed radiator fan: Fan runs continuously (also with ignition OFF). Battery is discharged. Radiator fan not working, can lead to engine overheating. Cars with 2-speed radiator fan: Fan runs at low speed continuously (also with ignition OFF). Battery is discharged. Radiator fan operates only at high speed, which may lead to increased engine temperature.

B1100


Low Speed Radiator Fan Relay. Short to B+

Low Speed Radiator Fan Relay. Open Circuit / Short to Ground


Fault symptoms

Cars with 1-speed radiator fan:


Fan runs continuously (also with ignition OFF).

Battery is discharged.

Radiator fan not working, can lead to engine overheating.


Cars with 2-speed radiator fan:


Fan runs at low speed continuously (also with ignition OFF).

Battery is discharged.

Radiator fan operates only at high speed, which may lead to increased engine temperature.


Conditions

Control module output is monitored and if there is a short-circuit to ground/B+ or in the relay circuit, a diagnostic trouble code will be generated.

Diagnostic help

The output from the control module can be activated using the diagnostics instrument.