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Troubleshooting and Diagnostics
OUO6050,0002237 –19–14NOV06–2/3
Fault Code Description Problem Solution
523319.18 Low switched voltage low voltage on key switched power supply. Check battery voltage, check grounds,
check harness. Contact dealer if problem
persists.
523792.18 Low unswitched voltage TCM has detected low voltage on Check battery voltage, check grounds,
unswitched battery power supply. check harness. Contact dealer if problem
persists.
523792.1 No unswitched voltage TCM has detected no voltage on unswitched Check battery voltage, check grounds,
battery power supply. TCM is unable to check fuses and harness. Contact your
save setup changes when key is turned off. John Deere dealer.
2028.12 No STARFIRE TCM has lost communication with Check TCM harness to ensure proper
communication STARFIRE receiver connection between STARFIRE Receiver
and TCM. Check CAN voltages. Contact
your John Deere dealer.
523773.3 StarFire CAN voltage out of StarFire CAN High signal voltage is out of Check TCM harness to ensure proper
range range high. connection between STARFIRE Receiver
and TCM. Check CAN STARFIRE voltages.
Contact your John Deere dealer.
523773.4 StarFire CAN voltage out of StarFire CAN High signal voltage is out of Check TCM harness to ensure proper
range range low. connection between Receiver and TCM.
Check CAN voltages. Contact your John
Deere dealer.
523774.3 StarFire CAN voltage out of StarFire CAN Low signal voltage is out of Check TCM harness to ensure proper
range range high. connection between STARFIRE Receiver
and TCM. Check CAN voltages. Contact
dealer.
523774.4 StarFire CAN voltage out of StarFire CAN Low signal voltage is out of Check TCM harness to ensure proper
range range low. connection between STARFIRE Receiver
and TCM. Check CAN voltage. Contact
your John Deere dealer.
956.16 Roll Sensor out of range Internal Roll Sensor is out of normal Contact your John Deere dealer.
operating range. TCM cannot correct
position for roll angles.
2146.14 Temp Sensor out of range Internal Temperature Sensor is out of Contact your John Deere dealer.
normal operating range.
523309.7 Yaw Sensor not responding Internal Yaw Sensor is not responding. TCM Contact your John Deere dealer.
cannot compensate for terrain changes.
523309.16 Yaw Sensor out of range Internal Yaw Sensor is out of normal Contact your John Deere dealer.
operating range. TCM cannot compensate
for terrain changes.
523310.2 Memory Error An internal memory error has occurred. Contact your John Deere dealer.
523442.31 No StarFire Fore/Aft setting StarFire Fore/Aft setting has not been See FORE/AFT in TCM or StarFire iTC
entered for this vehicle. Please go to section.
SETUP TCM.
523441.31 No StarFire Height setting StarFire Height setting has not been entered See HEIGHT in TCM or StarFire iTC
for this vehicle. Go to SETUP TCM. section.
40-9
121907
PN=145
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