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Home >> Volvo >> 1994 >> 850 L5-2.4L VIN 55 B5254S >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Output Device Test - Diagnostic Test Mode 3 >> Fuel Injection System
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Fuel Injection System


ACTIVATION
CONTROL FUNCTION 3 is activated by three brief operations of test button A with ignition "ON."

OPERATED COMPONENTS
The ECU activates the following components (in order):
1. Injectors (at 12 Hz) for 5 seconds.
2. Idle valve (at 1 Hz) for 5 seconds.

The procedure will repeat twice to confirm component operation.
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