DIAGNOSTIC TROUBLE CODES (DTCS) – MATRYX
SPN = SUSPECT PARAMETER NUMBER / FMI = FAILURE MODE INDICATOR
TROUBLE CODE SPN FMI
P-COD-
E
CONDITION
Exhaust
Temperature
Sensor 2 Abnormal
Rate of Change
520173 10 P1486 This Trouble Code sets if the Exhaust
Temperature Sensor Signal changes too
quickly to be considered a Realistic Value.
Can be caused by Damaged Wiring, a
faulty Exhaust Temperature Sensor or
ECU / Connections.
Exhaust
Temperature
Sensor 2 Mismatch
with Sensor 1
520173 14 P1488 This Trouble Code Sets when Exhaust
Temperature Sensor 2 signal is 250C
greater than Exhaust Temp Sensor 1
signal. The condition can be caused by
Damaged Wiring, faulty Exhaust
Temperature Sensor or ECU /
Connections.
ECU Supply
Voltage High
520174 3 P1341 This Trouble Code sets if the ECU Supply
Voltage is above 17.00V. Can be based by
faulty wiring, faulty regulator or ECU /
Connections
ECU Supply
Voltage Low
520174 4 P1342 This Trouble Code sets if the ECU Supply
Voltage is below 10.00V. Can be based by
faulty wiring, faulty regulator or ECU /
Connections.
Critical Supply
Voltage High
520175 3 P1343 This Trouble Code sets if the Critical
Supply Voltage is above 17.00V. Can be
based by faulty wiring, faulty regulator or
ECU / Connections.
Critical Supply
Voltage Low
520175 4 P1344 This Trouble Code sets if the Critical
Supply Voltage is below 10.00V. Can be
cbased by faulty wiring, faulty regulator or
ECU / Connections.
Chassis Supply
Voltage High
520176 3 P1345 This Trouble Code sets if the Chassis
Supply Voltage is above 18.00V. Can be
based by faulty wiring, faulty regulator or
ECU / Connections.
Chassis Supply
Voltage Low
520176 4 P1346 This Trouble Code sets if the Chasssis
Supply Voltage is below 14.00V. Can be
based by faulty wiring, faulty regulator or
ECU / Connections.
Peak Injector
Voltage High
520177 3 P1347 This Trouble Code sets if the Peak Injector
Supply Voltage is above 24.00V. Can be
based by faulty wiring, faulty regulator or
ECU / Connections.
Peak Injector
Voltage Low
520177 4 P1348 This Trouble Code sets if the Peak Injector
Supply Voltage is below 20.00V. Can be
based by faulty wiring, faulty regulator or
ECU / Connections.
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DIAGNOSTIC TROUBLE CODES (DTC)