Test TC-17A - Injector Control Circuits (DTC 27)
WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, 1995 Dodge Caravan, and 1995 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION
. For wiring diagrams, see WIRING DIAGRAMS
section at the end of this article.
- Using scan tool, erase DTCs. Attempt to start engine; crank engine for at least 10 seconds if necessary.
- Using scan tool, read DTCs. 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 appropriate test. See INJECTOR DTCS table.INJECTOR DTCS
DTC Go To INJECTOR #1 CONTROL CIRCUIT TC-17B INJECTOR # 2 CONTROL CIRCUIT TC-18A INJECTOR # 3 CONTROL CIRCUIT TC-19A INJECTOR # 4 CONTROL CIRCUIT TC-20A INJECTOR # 5 CONTROL CIRCUIT TC-21A INJECTOR # 6 CONTROL CIRCUIT TC-22A - Condition required to set DTC is not present at this time. INJECTOR CONTROL CIRCUIT DTC sets if Powertrain Control Module (PCM) does not detect injector "turn off edge" when expected. Possible causes are: open or shorted injector ground circuit, open injector power supply circuit, open injector, or failed driver in Powertrain Control Module (PCM). Go to next step.
- 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 wiring harness from injectors to Powertrain Control Module (PCM). If engine misfires or stalls, repair wiring harness as necessary. Perform TEST VER-2. If engine does not misfire or stall, see INACTIVE DTC CONDITION . Perform TEST VER-2.