Banks Power Chevy_GMC Trucks: Duramax LB7 (Diesel ’01 - 04 6.6L) Tuner- Banks Bullet Diesel Tuner '01-04 LB7 pickup User Manual
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The Bullet Diesel Tuner is equipped
with self-diagnosing features that
automatically check for proper sensor
and module operation. Error codes
that your module may display, either
upon startup or after accessing the
Diagnostics submenu, are listed below.
If the Bullet Diesel Tuner should ever
need to be removed from the vehicle,
the system includes a bypass plug that
must be connected to the six-pin MAP/
FRP harness in place of the module.
Failure to utilize the bypass plug when
the Bullet module has been unplugged
from the harness will generate a Check
Engine light when attempting to start the
vehicle.
-END, SECTION 4-
Section 4
TROUBLESHOOTING
Table 2
Error Code
Code Description
Course of Action
BST ERR1
The Bullet module has
detected a fault in
the Manifold Absolute
Pressure (MAP) input
circuit.
The listed error code(s) will occur when the
Bullet module fails to receive any signal from
the associated sensor, or receives an input
signal from the sensor that is out of the normal
operating range.
Turn the vehicle and ignition completely off,
check the Bullet harness connections at the
sensor in question to ensure that they are fully
engaged. Also check the 2- and 6-pin connectors
at the back of the Bullet module to ensure that
they are properly engaged. After checking all
connections, restart the vehicle – if the Bullet
module continues to display the same error
message, please contact Banks Technical Service
FRP ERR2
The Bullet module has
detected a fault in the
Fuel Rail Pressor (FRP)
input circuit.
EGT ERR3
The Bullet module
has detected a fault
in the Exhaust Gas
Temperature (EGT)
input circuit.
BSTO ERR4
The Bullet module has
detected a fault in
the Manifold Absolute
Pressure (MAP) output
circuit.
The listed output error(s) will be displayed when
the Bullet module detects a problem with the
associated output signal.
Turn the vehicle and ignition completely off,
check the Bullet harness connections at the
sensor in question to ensure that they are fully
engaged. Also check the 6-pin connector at the
back of the Bullet module to ensure that it is
properly engaged. After checking all connections,
restart the vehicle – if the Bullet module
continues to display the same error message,
please contact Banks Technical Service.
FRPO ERR5
The Bullet module has
detected a fault in the
Fuel Rail Pressor (FRP)
output circuit.
INT ERR6
The Bullet module has
detected an internal
(module) error.
Turn the vehicle completely off then restart it – if
the error is still present contact Banks Technical
Service.