B2190
Read the instructions below then
start the fault diagnostic procedure.
Symptom: 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.
High Speed Radiator Fan Relay 1. Short to B+
High Speed Radiator Fan Relay 1. Open Circuit / Short to Ground
Fault symptoms
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The radiator fan runs at high speed continuously (also with ignition OFF).
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Radiator fan does not operate at high speed, which may lead to engine overheating.
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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.
