Output Device Test - Diagnostic Test Mode 3
Test Mode 3:
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. Radiator fan at half speed (3 seconds).
2. Radiator fan at full speed (3 seconds).
3. Injectors (at 13 Hz).
4. Idle valve (at 1 Hz).
5. ECC relay and compressor clutch (at 1 Hz).
The procedure will repeat twice to confirm component operation.