B2190

Fault symptoms
^ The radiator fan runs at high speed continuously (also with ignition OFF).
^ Battery is discharged.
^ Radiator fan does not operate at high speed, which may lead to engine overheating.


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.