User Manual
22 96584 v.5.0
The Bullet Diesel Tuner is equipped
with self-diagnosing features that
automatically check for proper sensor
and module operation. Error codes
upon startup or after accessing the
If the Bullet Diesel Tuner should ever
the system includes a bypass plug that
ICP harness in place of the module.
the Bullet module has been unplugged
from the harness will generate a Check
Engine light when attempting to start the
vehicle.
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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
signal from the sensor that is out of the normal
operating range.
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
module continues to display the same error
ICP ERR2
The Bullet module has
detected a fault in
the Injection Control
Pressure (ICP) input
circuit.
EGT ERR3
The Bullet module
has detected a fault
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.
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
restart the vehicle – if the Bullet module
please contact Banks Technical Service.
ICPO ERR5
The Bullet module has
detected a fault in
the Injection Control
Pressure (ICP) 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.