IPA Tools 9005A Super MUTT Head User Manual

Page 28

Slow wheel recovery on Red valve channel.

Slow wheel recovery on Blue valve channel.

Slow wheel recovery on Yellow valve channel.

Hold solenoid Open circuit on Red valve

channel.
Hold solenoid Open circuit on Blue valve

channel.
Hold solenoid Open circuit on Yellow valve

channel.
Dump solenoid Open circuit on Red valve

channel.
Dump solenoid Open circuit on Blue valve

channel.
Dump solenoid Open circuit on Yellow valve

channel.
Hold solenoid Short circuit to ground on Red

valve channel.
Hold solenoid Short circuit to ground on Blue

valve channel.
Hold solenoid Short circuit to ground on

Yellow valve channel.
Dump solenoid Short circuit to ground on Red

valve channel.
Dump solenoid Short circuit to ground on Blue

valve channel.
Dump solenoid Short circuit to ground on

Yellow valve channel.

For a 2M System, verify sensor

and valve wiring/plumbing is

correct. (See Side-By-Side and

Axle-By-Axle configurations).

Slow brake release, foundation

brake mechanical faults, dry

bushings, broken ABS valve,

restricted piping. Check for kinks

and blockage etc., incorrect air-

lines, wiring.

Modulator valve solenoid failure,

solenoid connection, or valve

cable damage. The most likely

causes include: a bad solenoid

or a loose solenoid connection.

Disconnect the indicated solenoid

and check the resistance at the

solenoid pins.
Check the female terminals on

the connector for excessive pin

spread or corrosion. Replace

defective hardward as required

and retest.

Modulator valve solenoid failure,

or value cable damage. The most

likely causes include: a damaged

cable or solenoid. An example

of this is a worn or chafed cable

that has exposed wires contact-

ing the trailer.
Disconnect the indicated solenoid

and check the resistance at the

solenoid pins.

Fault

Code

Explanation

Possible Causes

PLC

Select

PLC

Select