Product Manual

ManualsBrandsIPA ManualsTesters + AccessoriesAlpha MUTT Trailer Tester — With ABS

7.5 ALL CIRCUITS ON (OVERRIDE) MODE:

All Circuits On Mode will engage all electrical circuits at the same time. While short

circuit sensing is operational in this mode, if a short circuit is found, the MUTT

will

not be able to identify which circuit is the cause of the short. Open and crossed

circuit sensing is not operational in this mode.

On trailers using incandescent bulbs, All Circuits On Mode will typically result in an

overload because the amperage draw will exceed the maximum of 20 amps.

All Circuits On Mode can be accessed manually, by remote control or with the tablet.

MANUALLY

1. To activate, press and hold Control Knob for ten seconds. Listen for

beep, then release.

2. To cancel, press or turn the Control Knob.

NOTE: Does not work when ABS or Brake Light Circuits are selected.

REMOTE CONTROL

1. To activate All Circuits On Mode press and hold Up Arrow for ﬁ ve seconds

and then release.

2. To cancel, press and release either arrow.

Press and Hold Up Arrow to Activate

Press and Hold Control Knob to Activate

7.3 FAULT INDICATION

OPEN CIRCUIT

When the MUTT® senses no load, it is often a symptom of a disconnected wire, cut

wire, poor pin connection or bad return ground. The MUTT

can detect open circuits

in two ways.

1. During Ground Integrity Test: An individual circuit will blink and no audible alerts

will be present.

2. During circuit selection: The selected circuit’s LED will blink, while simultaneously the

Open Circuit Indicator will ﬂ ash. The MUTT

will also provide an audible alert (beep).

Example: The MUTT

detects an open circuit in the Clearance Light Circuit. The

Clearance LED will blink, the Open Circuit Indicator will ﬂ ash and the MUTT

will beep.

NOTE: Open Circuit Indicator will only illuminate during circuit selection.

CROSSED CIRCUITS

The MUTT

indicates that two or more circuits are back feeding or crossed. This

can be a symptom of two wires in the same harness wearing through their insulated

coating and connecting.

1. When a crossed circuit is identiﬁ ed, the selected circuit LED will illuminate steadily

and the circuit it is crossed with will ﬂ ash. The MUTT

will also provide an audible

alert (beep).

Example: The MUTT

detects that the Clearance and Tail/Tag are crossed while the

Clearance Circuit is selected. The Clearance LED will illuminate, the Tail/Tag LED will

ﬂ ash and the MUTT

will beep.

Example: Crossed Circuit in Clearance and Tail/Tag Lights

Example: Open Circuit in Clearance Light