Service and Repair Manual October 2019GM 3.0L Engine Fault Codes144 S® -80 XC ™ • S® -85 XC ™ • S®-80 HF • S®-85 HF Part No. 1280490GTDescription DTC Set 2SPN-2 / FMI-2 DescriptionDTC Set 2SPN-2 /FMI-2DTC 1315: Cylinder 5 misfire detected 1327 / 11 DTC 1543: AUX analog Pull-Up/Down 2 high voltage 520220 / 3DTC 1316: Cylinder 6 misfire detected 1328 / 11 DTC 1544: AUX analog Pull-Up/Down 2 low voltage 520220 / 4DTC 1317: Cylinder 7 misfire detected 1329 / 11 DTC 1545: AUX analog Pull-Up/Down 3 high voltage 520221 / 3DTC 1318: Cylinder 8 misfire detected 1330 / 11 DTC 1546: AUX analog Pull-Up/Down 3 low voltage 520221 / 4DTC 1411: EMWT1 voltage high 441 / 3 DTC 1547: AUX analog Pull-Up/Down 4 high voltage 713 / 3DTC 1412: EMWT2 voltage high 442 / 3 DTC 1548: AUX analog Pull-Up/Down 4 low voltage 713 / 4DTC 1413: EMWT1 voltage low 441 / 4 DTC 1551: AUX digital 1 high voltage 520222 / 3DTC 1414: EMWT2 voltage low 442 / 4 DTC 1552: AUX digital 1 low voltage 520222 / 4DTC 1415: EMWT1 higher than expectedstage 1 441 / 15 DTC 1553: AUX digital 2 high voltage 520223 / 3DTC 1416: EMWT2 higher than expectedstage 1 442 / 15 DTC 1554: AUX digital 2 low voltage 520223 / 4DTC 1417: EMWT1 higher than expectedstage 2 441 / 0 DTC 1555: AUX digital 3 high voltage 520224 / 3DTC 1418: EMWT2 higher than expectedstage 2 442 / 0 DTC 1555: Water Intrusion Detection 520224 / 3DTC 1419: ERWT1 voltage high 443 / 3 DTC 1556: AUX digital 3 low voltage 520224 / 4DTC 1420: ERWT2 voltage high 444 / 3 DTC 1561: AUX analog Pull-Down 2 high voltage 0 / 3DTC 1421: ERWT1 voltage low 443 / 4 DTC 1561: AUX analog Pull-Down 3 high voltage 0 / 4DTC 1422: ERWT2 voltage low 444 / 4 DTC 1561: AUX analog Pull-Down 2 low voltage 0 / 4DTC 1423: ERWT1 higher than expectedstage 1 443 / 15 DTC 1611: Sensor supply voltage 1 and 2 out-of-range 1079 / 31DTC 1424: ERWT2 higher than expectedstage 1 444 / 15 DTC 1612: Microprocessor failure - RTI 1 629 / 31DTC 1425: ERWT1 higher than expectedstage 2 443 / 0 DTC 1613: Microprocessor failure - RTI 2 629 / 31DTC 1426: ERWT2 higher than expectedstage 2 444 / 0 DTC 1614: Microprocessor failure - RTI 3 629 / 31DTC 1511: AUX analog Pull-Up 1 highvoltage 520216 / 3 DTC 1615: Microprocessor failure - A/D 629 / 31DTC 1511: AUX analog Pull-Up 1 highvoltage 520216 / 3 DTC 1616: Microprocessor failure - Interrupt 629 / 31DTC 1512: AUX analog Pull-Up 1 low voltage 520216 / 4 DTC 1621: RS-485 Rx inactive 0 / 31DTC 1513: AUX analog Pull-Up 2 highvoltage 520217 / 3 DTC 1622: RS-485 Rx noise 0 / 31DTC 1514: AUX analog Pull-Up 2 low voltage 520217 / 4 DTC 1623: RS-485 Rx bad packet format 0 / 31DTC 1515: AUX analog Pull-Down 1 highvoltage 520215 / 3 DTC 1624: RS-485 remote shutdown request 0 / 31DTC 1516: AUX analog Pull-Down 1 lowvoltagee 520215 / 4 DTC 1625: J1939 shutdown request 1384 / 31
