Troubleshooting – Banks Power Dodge Trucks: (Diesel ’03 - 07 5.9L Cummins) Speed Control- Banks Brake with CBC-SmartLock '04-07 User Manual

Page 44

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44

97055 v.8.0

Your Banks Brake CBC/SmartLock is

equipped with diagnostic features

that will detect and display certain

errors. If the Banks Brake does not

pass the FUNCTIONAL TESTING or

ceases to function properly, re-check

all the connections per the installation

instructions. Make sure that electrical

connections are tight and secure and

that the vacuum hoses are not kinked or

pinched.
If the Brake Enable Switch does not light

up within a few seconds, the following

diagnostic procedures can be carried out

to identify and correct the problem:

1.

With key ON and the engine OFF,

turn the Brake Enable Switch ON. If

the Switch does not light up, check the

red power wire to the CBC/SmartLock

module, and it’s fuse.

2.

If the Switch begins to flash an

error code, check the troubleshooting

table for their meaning.
The Switch will flash in a certain

sequence if a connection is incorrect

or if there is a problem with the

system – this sequence will identify

one or more diagnostic codes. A Banks

Brake diagnostic code is comprised

of 2 digits. Each code is expressed

in a sequence of 2 sets from the

flashing Switch separated by a brief

pause, followed by additional flashing.

A longer flashing of the Switch

separates the sequences. The Switch

will continue to flash to display all the

errors, and then repeat. Table 1 lists

the available diagnostic codes and

their recommended course of action

for each. For example, if a faulty OBD

II connection is detected (code “2,4”)

by the Banks Brake CBC/SmartLock,

the Brake Enable Switch will flash the

following sequence when the key is

on:

(1) Two times flashing
(2) One time quick flash
(3) Four times flashing
(4) One time longer flashing.
The flashing sequence will repeat

continuously. When the problem is

corrected, the diagnostic code will be

eliminated and replaced by a steady

light.
Note: If multiple codes are set, they

will be displayed in a series separated

by the longer flashing light. When

reading codes, make sure to watch

the entire series until you see the first

code repeat.

3.

If the Enable Switch is lit solidly,

then inspect all the mechanical

components in the System. With the

engine cold and the hood up, have

someone start the engine. Make

sure the transmission is in park.

Watch the actuator arm on the Brake

housing. It should move forward

(closed). Whenever the accelerator

pedal is pressed, the Brake should

open (actuator arm should move back

towards the firewall).

Checking the performance of the

vacuum pump:

WARNING:

The Pump must never

be run open to the atmosphere,

as this will damage the Pump

diaphragm. The Pump must

always be connected to the

Vacuum Solenoid or it’s vacuum

nipple must be plugged. The

warranty on the Pump will be

voided if the Pump is allowed to

run open to the atmosphere.
With the vehicle safely in park and the

engine off, disconnect the

5

16

” hose

from the Vacuum Solenoid (Port 1,

Figure 20 & 21). Connect this hose

to a vacuum gauge while keeping the

Section 10

Troubleshooting

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