Banks Power Chevy_GMC Trucks: Duramax LLY (Diesel ’04 - 05 6.6L) Speed Control- SpeedBrake '04-05 (iQ) For use with Banks iQ - Manual (Page 19)

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flash
Code
PDa Error Message Corrective action- LLY
1.1 code 11: VGT control input
out of range
Turn ignition OFF and check the 24-Pin connector.
Turn ignition back ON and re-check for presence of
code.
1.2 code 12: Vane Position
Sensor input out of range.
Turn ignition OFF and check the 24-Pin connector.
Turn ignition back ON and re-check for presence of
code.
1.3 code 13: Rear wheels
slipping.
None required. When traction is regained, error will
clear after 30 seconds.
1.4 code 14: Low power
voltage detected.
Turn ignition OFF and check the Fuse Tap and the
Ground O-ring. Turn ignition back ON and re-check for
presence of code.
2.1 code 21: VGT control
output malfunction.
Turn ignition OFF and check the 24-Pin connector.
Turn ignition back ON and re-check for presence of
code.
2.2 code 22: VGT control
output overcurrent.
Turn ignition OFF and check the 24-Pin connector.
Turn ignition back ON and re-check for presence of
code.
2.3 code 23: Low relay voltage
detected.
Turn ignition OFF. Turn ignition back ON and re-check
for presence of code.
2.4 code 24: Vane Position
Sensor voltage output
malfunction.
Turn ignition OFF and check the 24-Pin connector.
Turn ignition back ON and re-check for presence of
code.
3.1 code 31: OBD
communication error.
Turn ignition off and check the OBD connector
and cable. Turn ignition back ON and re-check for
presence of code.
3.2 code 32: Internal module
malfunction or intermittent
power.
Turn ignition OFF. Turn ignition back ON and re-check
for presence of code.
3.4 code 34: cAN
communication input error.
Turn ignition OFF and check the 24-Pin connector.
Turn ignition back ON and re-check for presence of
code.
4.2 code 42: Torque converter
clutch slippage detected.
Turn ignition OFF. Turn ignition back ON and re-check
for presence of code.
4.4 code 44: Internal memory
malfunction.
Turn ignition OFF. Turn ignition back ON and re-check
for presence of code.
Table 1 - (For 04-05 model years)
If problem persists, call Gale Banks Engineering Tech Support.