Injector Control Circuit (DTC 27)
NOTE:
For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION. For wiring diagrams, see WIRING DIAGRAMS - 2.5L V6
article in ENGINE PERFORMANCE.
- Using scan tool, erase trouble codes. Attempt to start engine. If engine will not start, crank engine for at least 10 seconds.
- Using scan tool, read trouble codes. If engine started, allow engine to idle for at least 20 seconds. If scan tool does not display INJECTOR CONTROL CIRCUIT, go to next step. If scan tool displays INJECTOR CONTROL CIRCUIT, go to step 6).NOTE: For next step, see INJECTOR DRIVER IDENTIFICATION table for injector power supply wire color and injector driver wire color identification.
- At this time, condition required to set trouble code is not present. INJECTOR CONTROL CIRCUIT trouble code sets if Powertrain Control Module (PCM) does not detect an inductive kick .18ms after injector turn off with no other injectors on. Possible causes are: open or shorted injector driver circuit, open injector, open injector power supply circuit, or failed PCM. Go to next step.INJECTOR DRIVER IDENTIFICATION
Application Wire Color FJ22 Body ASD Relay Output (1) Black/Red Driver No. 1 Light Green/Black Driver No. 2 Yellow/Red Driver No. 3 Yellow/Dark Green Driver No. 4 Light Green/Red Driver No. 5 Red/White Driver No. 6 Brown/Red JA Body ASD Relay Output (1) Dark Green/Orange Driver No. 1 White/Light Blue Driver No. 2 Tan Driver No. 3 Yellow/White Driver No. 4 Light Blue/Brown Driver No. 5 Gray Driver No. 6 Brown/Dark Green (1) Injector power supply circuit. - Inspect all related wiring and connectors and repair as necessary. Perform TEST VER-2. If no problems are found with wiring and connectors, go to next step.
- Start engine. Wiggle injector-to-PCM wiring harness. If engine misfires or stalls, repair wiring harness as necessary. Perform TEST VER-2. If engine does not misfire or stall, see INACTIVE TROUBLE CODE CONDITION . Perform TEST VER-2 .
- See INJECTOR TROUBLE CODE table.
INJECTOR TROUBLE CODE
| Trouble Code | Go To |
|---|---|
| INJECTOR #1 CONTROL CIRCUIT | TEST TC-26B |
| INJECTOR #2 CONTROL CIRCUIT | TEST TC-27A |
| INJECTOR #3 CONTROL CIRCUIT | TEST TC-28A |
| INJECTOR #4 CONTROL CIRCUIT | TEST TC-29A |
| INJECTOR #5 CONTROL CIRCUIT | TEST TC-30A |
| INJECTOR #6 CONTROL CIRCUIT | TEST TC-31A |