Code Interpretation Code Interpretation
P1254 Pedal Correlation PDS2 and LPDS High
P1255 Pedal Correlation PDS2 and LPDS Low
P1256 Pedal Correlation PDS1 and HPDS
P1257 Pedal Correlation PDS2 and HPDS
P1258 Pedal Correlation PDS1 and PDS2
P1260 Theft Detected, Vehicle Immobilized
P1261 High to Low Side Short - Cylinder 1
P1262 High to Low Side Short - Cylinder 2
P1263 High to Low Side Short - Cylinder 3
P1264 High to Low Side Short - Cylinder 4
P1265 High to Low Side Short - Cylinder 5
P1266 High to Low Side Short - Cylinder 6
P1267 High to Low Side Short - Cylinder 7
P1268 High to Low Side Short - Cylinder 8
P1270 Eng RPM/Vehicle Speed Limiter Reached
P1271 High to Low Side Open - Cylinder 1
P1272 High to Low Side Open - Cylinder 2
P1273 High to Low Side Open - Cylinder 3
P1274 High to Low Side Open - Cylinder 4
P1275 High to Low Side Open - Cylinder 5
P1276 High to Low Side Open - Cylinder 6
P1277 High to Low Side Open - Cylinder 7
P1278 High to Low Side Open - Cylinder 8
P1280 ICP Circ Out of Range Low
P1281 ICP Circ Out of Range High
P1282 Excessive ICP
P1283 Injector Pres Regulator Circ
P1284 ICP Failure - Aborts KOER/CCT Test
P1285 Cylinder Head Overtemp Condition
P1286 Fuel Pulsewidth in Range But Lower Than Expected
P1287 Fuel Pulsewidth in Range But Higher Than Expected
P1288 Cylinder Head Temp Sens Out Of Self Test Range
P1289 Cylinder Head Temp Sens Circ High Input
P1290 Cylinder Head Temp Sens Circ Low Input
P1291 High Side No. 1 (Right) Short to GND/B+
P1292 High Side No. 2 (Left) Short to GND/B+
P1293 High Side Open Bank No. 1 (Right)
P1294 High Side Open Bank No. 2 (Left)
P1295 Multiple Faults on Bank No. 1 (Right)
P1296 Multiple Faults on Bank No. 2 (Left)
P1297 High Sides Shorted Together
P1298 Injector Dvr Mod Failure
P1299 Cylinder Head Overtemp Protection Active
P1300 Boost Calibration Fault
P1301 Boost Calibration High
P1302 Boost Calibration Low
P1303 Exhaust Gas Recirculation Calibration Fault
P1304 Exhaust Gas Recirculation Calibration High
P1305 Exhaust Gas Recirculation Calibration Low
P1306 Kickdown Relay Pull-in Circ
P1307 Kickdown Relay Hold Circ
P1309 Misfire Mon Hdwr-CMP Misaligned, CKP/CMP Noise,
PCM AICE Chip
P1310 Ionization Misfire Detect Mod Fault
P1311 Ionization Misfire Detect Mod Comm Fault
P1316 Injector Circ/IDM Codes Detected
P1317 Injector Circ/IDM Codes Not Retrieved
P1336 Crankshaft Position System Variation Not Learned
P1340 Camshaft Position Sens B Circ
P1350 Ignition Ctrl System
P1351 Ignition Diag Monitor Input Circ
P1352 Ignition Coil A Primary Circ
P1353 Ignition Coil B Primary Circ
P1354 Ignition Coil C Primary Circ
P1355 Ignition Coil D Primary Circ
P1356 Ignition Diag Monitor Indicates Eng Not Turning
P1357 Ignition Diag Monitor Pulsewidth Not Defined
P1358 Ignition Diag Monitor Signal Out Of Self Test Range
P1359 Spark Output Circ
P1360 Ignition Coil A Sec Circ
P1361 Ignition Coil B Sec Circ
P1362 Ignition Coil C Sec Circ
P1363 Ignition Coil D Sec Circ
P1364 Ignition Coil Primary Circ
P1365 Ignition Coil Sec Circ
P1366 Ignition Spare
P1367 Ignition Spare
P1368 Ignition Spare
P1369 Eng Temp Light Circ
P1380 Camshaft Position Actuator Circ (bank1)
P1381 Camshaft Position Timing Over Advanced (bank1)
P1383 Camshaft Position Timing Over Retarded (bank1)
P1385 Camshaft Position Actuator Circ (bank2)
P1386 Camshaft Position Timing Over Advanced (bank2)
P1388 Camshaft Position Timing Over Retarded (bank2)
P1389 Glow Plug Circ High Side, Low Input
P1390 Octane Adjust Service Pin In Use/Circ Open
P1391 Glow Plug Circ Low Input Bank No. 1(Right)
P1392 Glow Plug Circ High Input (bank1)
P1393 Glow Plug Circ Low Input Bank No. 2 (Left)
P1394 Glow Plug Circ High Input (bank2)
P1395 Glow Plug Monitor Fault Bank No. 1
P1396 Glow Plug Monitor Fault Bank No. 2
P1397 System Voltage Out of Self Test Range
P1398 Wheel Speed Sens2 - G - Sens Circ High Voltage
P1398 Wheel Speed Sens2 - G - Sens Circ High Voltage
P1399 Glow Plug Circ High Side, High Input
P1400 Diff Pres Feedback EGR Circ Low Input
P1401 Diff Pres Feedback EGR Circ High Input
P1402 Exhaust Gas Recirculation Metering Orifice Restricted
P1403 Diff Pres Feedback Sens Hoses Reversed
P1404 EGR Temp Sens Circ
P1405 Diff Pres Feedback Sens Upstream Hose Off/Plugged
P1406 Diff Pres Feedback Sens Downstream Hose Off/Plugged
P1407 Exhaust Gas Recirculation No Flow Detected
P1408 Exhaust Gas Recirculation Flow Out Of Self Test Range
P1409 EGR Vacuum Regulator Solenoid Circ
P1410 Auxiliary Air Cleaner Inlet Ctrl Circ
P1411 Sec Air Injection Incorrect Downstream Flow Detected
P1413 Sec Air Injection Monitor Circ Low Input
P1414 Sec Air Injection Monitor Circ High Input
P1431 Misfire Monitor Disabled, unable to learn trig whl profile
P1442 Evap Emission Ctrl System Ctrl Leak Detected
P1443 Evap Emission Ctrl System Ctrl Valve
P1444 Purge Flow Sens Circ Low Input
P1445 Purge Flow Sens Circ High Input
P1450 Unable to Bleed Up Fuel Tank Vacuum
P1451 Evap Emission Ctrl System Vent Ctrl Circ
P1452 Unable to Bleed Up Fuel Tank Vacuum
P1455 Evap Emission Ctrl Sys Ctrl Leak (gross leak/no flow)
P1456 Fuel Tank Temp Sens Circ
P1457 Unable To Pull Fuel Tank Vacuum
P1460 Wide Open Throttle A/C Cutout Circ
P1461 A/C Pres Sens Circ High Input
P1462 A/C Pres Sens Circ Low Input
P1463 A/C Pres Sens Insuff Pres Change
P1464 A/C On During KOER/CCT Test
P1465 A/C Relay Circ
P1466 A/C Refrigerant Temp Sens Circ
P1469 Rapid A/C Cycling
P1473 Fan Circ Open (VLCM
P1474 Fan Ctrl Primary Circ
P1479 High Fan Ctrl Primary Circ
P1480 Fan Sec Low with Low Fan On
P1481 Fan Sec Low with High Fan On
P1482 SCP
P1483 Fan Circ Shorted To Ground (VLCM)
P1484 Fan Dvr Circ Open To Power Ground (VLCM)
P1485 Brake Pedal Input Short To Battery
P1500 Vehicle Speed Sens
P1501 Vehicle Speed Sens Out Of Self Test Range
P1502 VSS Interm./Invalid Self Test - APCM Functioning
P1504 Idle Air Ctrl Circ
P1505 Idle Air Ctrl System At Adaptive Clip
P1506 Idle Air Ctrl Overspeed Error
P1507 Idle Air Ctrl Underspeed Error
P1512 Intake Manf Runner Ctrl Stuck Closed (bank1)
P1513 Intake Manf Runner Ctrl Stuck Closed (bank2)
P1516 Intake Manf Runner Ctrl Input Error (bank1)
P1517 Intake Manf Runner Ctrl Input Error (bank2)
P1518 Intake Manf Runner Ctrl Stuck Open (bank1)
P1519 Intake Manf Runner Ctrl Stuck Closed (bank2)
P1520 Intake Manf Runner Ctrl Circ
P1530 A/C Clutch Circ Open (VLCM)
P1531 Invalid Test -Accelerator Pedal Movement
P1532 Intake Manf Comm Ctrl Circ (bank2)P1533
P1534 Restraint Deployment Indicator Circ
P1536 Parking Brake Applied Failure
P1537 Intake Manf Runner Ctrl Stuck Open (bank1)
P1538 Intake Manf Runner Ctrl Stuck Open (bank2)
P1539 A/C Clutch Circ Overcurrent/Short (VLCM)
P1542 Primary PCM ID Circ (dual PCM application)
P1543 Eng Coolant heater A Ctrl Circ
P1544 Eng Coolant heater B Ctrl Circ
P1549 Intake Manf Comm Ctrl Circ (bank1)
P1550 Power Steering Pres Sens Out Of Self Test Range
P1565 Speed Ctrl Command Switch Out of Range High
P1566 Speed Ctrl Command Switch Out of Range Low
P1254 Pedal Correlation PDS2 and LPDS High
P1255 Pedal Correlation PDS2 and LPDS Low
P1256 Pedal Correlation PDS1 and HPDS
P1257 Pedal Correlation PDS2 and HPDS
P1258 Pedal Correlation PDS1 and PDS2
P1260 Theft Detected, Vehicle Immobilized
P1261 High to Low Side Short - Cylinder 1
P1262 High to Low Side Short - Cylinder 2
P1263 High to Low Side Short - Cylinder 3
P1264 High to Low Side Short - Cylinder 4
P1265 High to Low Side Short - Cylinder 5
P1266 High to Low Side Short - Cylinder 6
P1267 High to Low Side Short - Cylinder 7
P1268 High to Low Side Short - Cylinder 8
P1270 Eng RPM/Vehicle Speed Limiter Reached
P1271 High to Low Side Open - Cylinder 1
P1272 High to Low Side Open - Cylinder 2
P1273 High to Low Side Open - Cylinder 3
P1274 High to Low Side Open - Cylinder 4
P1275 High to Low Side Open - Cylinder 5
P1276 High to Low Side Open - Cylinder 6
P1277 High to Low Side Open - Cylinder 7
P1278 High to Low Side Open - Cylinder 8
P1280 ICP Circ Out of Range Low
P1281 ICP Circ Out of Range High
P1282 Excessive ICP
P1283 Injector Pres Regulator Circ
P1284 ICP Failure - Aborts KOER/CCT Test
P1285 Cylinder Head Overtemp Condition
P1286 Fuel Pulsewidth in Range But Lower Than Expected
P1287 Fuel Pulsewidth in Range But Higher Than Expected
P1288 Cylinder Head Temp Sens Out Of Self Test Range
P1289 Cylinder Head Temp Sens Circ High Input
P1290 Cylinder Head Temp Sens Circ Low Input
P1291 High Side No. 1 (Right) Short to GND/B+
P1292 High Side No. 2 (Left) Short to GND/B+
P1293 High Side Open Bank No. 1 (Right)
P1294 High Side Open Bank No. 2 (Left)
P1295 Multiple Faults on Bank No. 1 (Right)
P1296 Multiple Faults on Bank No. 2 (Left)
P1297 High Sides Shorted Together
P1298 Injector Dvr Mod Failure
P1299 Cylinder Head Overtemp Protection Active
P1300 Boost Calibration Fault
P1301 Boost Calibration High
P1302 Boost Calibration Low
P1303 Exhaust Gas Recirculation Calibration Fault
P1304 Exhaust Gas Recirculation Calibration High
P1305 Exhaust Gas Recirculation Calibration Low
P1306 Kickdown Relay Pull-in Circ
P1307 Kickdown Relay Hold Circ
P1309 Misfire Mon Hdwr-CMP Misaligned, CKP/CMP Noise,
PCM AICE Chip
P1310 Ionization Misfire Detect Mod Fault
P1311 Ionization Misfire Detect Mod Comm Fault
P1316 Injector Circ/IDM Codes Detected
P1317 Injector Circ/IDM Codes Not Retrieved
P1336 Crankshaft Position System Variation Not Learned
P1340 Camshaft Position Sens B Circ
P1350 Ignition Ctrl System
P1351 Ignition Diag Monitor Input Circ
P1352 Ignition Coil A Primary Circ
P1353 Ignition Coil B Primary Circ
P1354 Ignition Coil C Primary Circ
P1355 Ignition Coil D Primary Circ
P1356 Ignition Diag Monitor Indicates Eng Not Turning
P1357 Ignition Diag Monitor Pulsewidth Not Defined
P1358 Ignition Diag Monitor Signal Out Of Self Test Range
P1359 Spark Output Circ
P1360 Ignition Coil A Sec Circ
P1361 Ignition Coil B Sec Circ
P1362 Ignition Coil C Sec Circ
P1363 Ignition Coil D Sec Circ
P1364 Ignition Coil Primary Circ
P1365 Ignition Coil Sec Circ
P1366 Ignition Spare
P1367 Ignition Spare
P1368 Ignition Spare
P1369 Eng Temp Light Circ
P1380 Camshaft Position Actuator Circ (bank1)
P1381 Camshaft Position Timing Over Advanced (bank1)
P1383 Camshaft Position Timing Over Retarded (bank1)
P1385 Camshaft Position Actuator Circ (bank2)
P1386 Camshaft Position Timing Over Advanced (bank2)
P1388 Camshaft Position Timing Over Retarded (bank2)
P1389 Glow Plug Circ High Side, Low Input
P1390 Octane Adjust Service Pin In Use/Circ Open
P1391 Glow Plug Circ Low Input Bank No. 1(Right)
P1392 Glow Plug Circ High Input (bank1)
P1393 Glow Plug Circ Low Input Bank No. 2 (Left)
P1394 Glow Plug Circ High Input (bank2)
P1395 Glow Plug Monitor Fault Bank No. 1
P1396 Glow Plug Monitor Fault Bank No. 2
P1397 System Voltage Out of Self Test Range
P1398 Wheel Speed Sens2 - G - Sens Circ High Voltage
P1398 Wheel Speed Sens2 - G - Sens Circ High Voltage
P1399 Glow Plug Circ High Side, High Input
P1400 Diff Pres Feedback EGR Circ Low Input
P1401 Diff Pres Feedback EGR Circ High Input
P1402 Exhaust Gas Recirculation Metering Orifice Restricted
P1403 Diff Pres Feedback Sens Hoses Reversed
P1404 EGR Temp Sens Circ
P1405 Diff Pres Feedback Sens Upstream Hose Off/Plugged
P1406 Diff Pres Feedback Sens Downstream Hose Off/Plugged
P1407 Exhaust Gas Recirculation No Flow Detected
P1408 Exhaust Gas Recirculation Flow Out Of Self Test Range
P1409 EGR Vacuum Regulator Solenoid Circ
P1410 Auxiliary Air Cleaner Inlet Ctrl Circ
P1411 Sec Air Injection Incorrect Downstream Flow Detected
P1413 Sec Air Injection Monitor Circ Low Input
P1414 Sec Air Injection Monitor Circ High Input
P1431 Misfire Monitor Disabled, unable to learn trig whl profile
P1442 Evap Emission Ctrl System Ctrl Leak Detected
P1443 Evap Emission Ctrl System Ctrl Valve
P1444 Purge Flow Sens Circ Low Input
P1445 Purge Flow Sens Circ High Input
P1450 Unable to Bleed Up Fuel Tank Vacuum
P1451 Evap Emission Ctrl System Vent Ctrl Circ
P1452 Unable to Bleed Up Fuel Tank Vacuum
P1455 Evap Emission Ctrl Sys Ctrl Leak (gross leak/no flow)
P1456 Fuel Tank Temp Sens Circ
P1457 Unable To Pull Fuel Tank Vacuum
P1460 Wide Open Throttle A/C Cutout Circ
P1461 A/C Pres Sens Circ High Input
P1462 A/C Pres Sens Circ Low Input
P1463 A/C Pres Sens Insuff Pres Change
P1464 A/C On During KOER/CCT Test
P1465 A/C Relay Circ
P1466 A/C Refrigerant Temp Sens Circ
P1469 Rapid A/C Cycling
P1473 Fan Circ Open (VLCM
P1474 Fan Ctrl Primary Circ
P1479 High Fan Ctrl Primary Circ
P1480 Fan Sec Low with Low Fan On
P1481 Fan Sec Low with High Fan On
P1482 SCP
P1483 Fan Circ Shorted To Ground (VLCM)
P1484 Fan Dvr Circ Open To Power Ground (VLCM)
P1485 Brake Pedal Input Short To Battery
P1500 Vehicle Speed Sens
P1501 Vehicle Speed Sens Out Of Self Test Range
P1502 VSS Interm./Invalid Self Test - APCM Functioning
P1504 Idle Air Ctrl Circ
P1505 Idle Air Ctrl System At Adaptive Clip
P1506 Idle Air Ctrl Overspeed Error
P1507 Idle Air Ctrl Underspeed Error
P1512 Intake Manf Runner Ctrl Stuck Closed (bank1)
P1513 Intake Manf Runner Ctrl Stuck Closed (bank2)
P1516 Intake Manf Runner Ctrl Input Error (bank1)
P1517 Intake Manf Runner Ctrl Input Error (bank2)
P1518 Intake Manf Runner Ctrl Stuck Open (bank1)
P1519 Intake Manf Runner Ctrl Stuck Closed (bank2)
P1520 Intake Manf Runner Ctrl Circ
P1530 A/C Clutch Circ Open (VLCM)
P1531 Invalid Test -Accelerator Pedal Movement
P1532 Intake Manf Comm Ctrl Circ (bank2)P1533
P1534 Restraint Deployment Indicator Circ
P1536 Parking Brake Applied Failure
P1537 Intake Manf Runner Ctrl Stuck Open (bank1)
P1538 Intake Manf Runner Ctrl Stuck Open (bank2)
P1539 A/C Clutch Circ Overcurrent/Short (VLCM)
P1542 Primary PCM ID Circ (dual PCM application)
P1543 Eng Coolant heater A Ctrl Circ
P1544 Eng Coolant heater B Ctrl Circ
P1549 Intake Manf Comm Ctrl Circ (bank1)
P1550 Power Steering Pres Sens Out Of Self Test Range
P1565 Speed Ctrl Command Switch Out of Range High
P1566 Speed Ctrl Command Switch Out of Range Low
