Fuel Injector Checks
FUEL INJECTOR DRIVER CIRCUIT MONITOR OPERATION
| DTCs | P062D - Fuel Injector Driver Circuit Performance Bank 1 P062E - Fuel Injector Driver Circuit Performance Bank 2 P0A09 - DC/DC Converter Status Circuit Low P0A10 - DC/DC Converter Status Circuit High P1291 - Injector High Side Short To GND Or VBATT (Bank 1) P1292 - Injector High Side Short To GND Or VBATT (Bank 2) P1295 - Injector Multiple Faults (Bank 1) |
| Monitor Execution | Continuous |
| Monitor Sequence | None |
| Sensors OK | None (6.7L) Injector circuit checks OK (P0201-P0205, P1261-P1265), System voltage OK (P2507, P2508) (3.2L) |
| Typical Monitoring Duration | P062D, P062E, P0A09, P0A10 - 0.5 seconds P1291, P1292, P1295 - 0.2 seconds |
TYPICAL FUEL INJECTOR DRIVER CIRCUIT MALFUNCTION THRESHOLDS
| P062D, P062E
- Failure of injector driver of bank detected by IC Internal logic P0A09 - DC/DC converter output voltage <160V P0A10 - DC/DC converter output voltage >300V P1291, P1292 - Short to ground or battery of bank detected by IC internal logic P1295 - One or more short to ground or battery faults detected (3.2L) |
INJECTION CIRCUITS MONITOR OPERATION
| DTCs | P0201 - Injector Circuit / Open - Cylinder 1 P0202 - Injector Circuit / Open - Cylinder 2 P0203 - Injector Circuit / Open - Cylinder 3 P0204 - Injector Circuit / Open - Cylinder 4 P0205 - Injector Circuit / Open - Cylinder 5 P0206 - Injector Circuit / Open - Cylinder 6 P0207 - Injector Circuit / Open - Cylinder 7 P0208 - Injector Circuit / Open - Cylinder 8 P02EE - Cylinder 1 Injector Circuit Range/Performance P02EF - Cylinder 2 Injector Circuit Range/Performance P02F0 - Cylinder 3 Injector Circuit Range/Performance P02F1 - Cylinder 4 Injector Circuit Range/Performance P02F2 - Cylinder 5 Injector Circuit Range/Performance P02F3 - Cylinder 6 Injector Circuit Range/Performance P02F4 - Cylinder 7 Injector Circuit Range/Performance P02F5 - Cylinder 8 Injector Circuit Range/Performance P1201 - Cylinder #1 Injector Circuit Open/Shorted P1202 - Cylinder #2 Injector Circuit Open/Shorted P1203 - Cylinder #3 Injector Circuit Open/Shorted P1204 - Cylinder #4 Injector Circuit Open/Shorted P1205 - Cylinder #5 Injector Circuit Open/Shorted P1206 - Cylinder #6 Injector Circuit Open/Shorted P1207 - Cylinder #7 Injector Circuit Open/Shorted P1208 - Cylinder #8 Injector Circuit Open/Shorted P1261 - Cylinder #1 High To Low Side Short P1262 - Cylinder #2 High To Low Side Short P1263 - Cylinder #3 High To Low Side Short P1264 - Cylinder #4 High To Low Side Short P1265 - Cylinder #5 High To Low Side Short P1266 - Cylinder #6 High To Low Side Short P1267 - Cylinder #7 High To Low Side Short P1268 - Cylinder #8 High To Low Side Short P0261 - Cylinder 1 Injector "A" Circuit Low P0262 - Cylinder 1 Injector "A" Circuit High P0264 - Cylinder 2 Injector "A" Circuit Low P0265 - Cylinder 2 Injector "A" Circuit High P0267 - Cylinder 3 Injector "A" Circuit Low P0268 - Cylinder 3 Injector "A" Circuit High P0270 - Cylinder 4 Injector "A" Circuit Low P0271 - Cylinder 4 Injector "A" Circuit High P0273 - Cylinder 5 Injector "A" Circuit Low P0274 - Cylinder 5 Injector "A" Circuit High P126A - Cylinder 1 Injector Input Circuit P126B - Cylinder 2 Injector Input Circuit P126C - Cylinder 3 Injector Input Circuit P126D- Cylinder 4 Injector Input Circuit P126E - Cylinder 5 Injector Input Circuit |
| Monitor Execution | Continuous |
| Monitor Sequence | None |
| Sensors OK | None |
| Typical Monitoring Duration | P0201 - P0208 - 0.3 seconds, P02EE - P2F5 - 0.3 seconds. P1201 - P1208 - 0.3 seconds, P1261 - P1268 - 0.3 seconds. P126A - P126E - 5 seconds |
TYPICAL INJECTION CIRCUITS ENTRY CONDITIONS
| Entry Condition | Minimum | Maximum |
| 6.7L: | ||
| Injections Requested | ||
| 3.2L: | ||
| P02EE - P02F2: | ||
| Time since engine start | 60 sec | |
| Engine coolant temperature | -5 deg C |
TYPICAL INJECTION CIRCUITS MALFUNCTION THRESHOLDS
| P0201 - P0208
- Injector open circuit detected by IC internal logic P02EE - P02F5 - Implausible injector response detected by IC internal logic P1201 - P1208 - Injector short circuit detected by IC internal logic P1261 - P1268 - Injector high side to low side short circuit detected by IC internal logic P0261 - P0273 (Low): IC internal control > 10 mJ P0262 - P0274 (High): IC internal control < -10 mJ P126A - P126E : voltage is not within 210 and 240 v |