AFFZP0BB – ACE3 – User Manual Page – 117/139
- If the alarm appears at key-on without any CLEAR EEPROM performed,
replace the controller.
36) EB. DRIV.SHRT.
Cause:
- The EB driver is shorted.
- The microcontroller detects a mismatch between the valve setpoint and the
feedback at the EB output.
Troubleshooting:
- Check if there is a short or a low impedance path between the negative coil
terminal and -BATT.
- Check if the voltage applied is in accordance with the parameters set (see
paragraph 7.2.5).
- If the problem is not solved, replace the controller.
37) PEV NOT OK
Cause:
The PEV connector (B1, only for ACE3 Premium version) is not connected to
the battery or the voltage is different from expected. This alarm occurs if one
output among EVP, EV1, EV2, EV3, EV4 and EV5 is present or the AUX OUT
function is active (POSITIVE EB = 1 or 2).
Troubleshooting:
Check connector B1: it must be connected to the battery voltage (after the main
contactor).
38) EB COIL OPEN
Cause
:
This fault appears when no load is connected between the NEB output (A18)
and the EB positive terminal (PEB).
Troubleshooting
:
- Check the EB coil.
- Check the wiring.
- If the problem is not solved, replace the logic board.
39) EB DRIV OPEN
Cause:
The EB coil driver is not able to drive the load. The device itself or its driving
circuit is damaged.
Troubleshooting:
This type of fault is not related to external components. Replace the logic board.
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