P0261

DTC P0261, P0264, P0267 or P0270 Injector Control Circuit Low Voltage

Circuit Description

The ECM calculates the optimum fuel injection ON time using data sent from various engine sensors. The common 1 and 2 fuel injector charge voltage circuits are high-voltage supply which drives fuel injectors for each cylinder in conjunction with the ECM grounding the fuel injector solenoid control circuits. The common 1 covers fuel injectors in cylinders #1 and #4 and the common 2 covers fuel injectors in cylinders #2 and #3. If the fuel injector solenoid control circuit is shorted to common charge voltage circuit DTC P0261 P0264 P0267 or P0270 will set depending upon which cylinder circuit failed.

Condition for Running the DTC

^ The battery voltage is between 10 to 16 volts.
^ The ignition switch is ON.
^ The engine is running.

Condition for Setting the DTC

^ The ECM detects that the fuel injector solenoid control circuit is shorted to common charge voltage circuit.

Action Taken When the DTC Sets

^ The ECM illuminates the MIL when the diagnostic runs and fails. Refer to DTC Type Definitions for Action Taken When the DTC Sets - Type A.
^ The ECM limits fuel injection quantity.
^ The ECM inhibits EGR control.
^ The ECM inhibits DPF regeneration control.
^ The ECM inhibits cruise control.

Condition for Clearing the DTC

^ Refer to DTC Type Definitions for Condition for Clearing the MIL/DTC - Type A.

Diagnostic Aids

^ If an intermittent condition is suspected refer to Intermittent Conditions in this section.

Notice: Each DTC agrees with following engine cylinder.

^ P0261: Cylinder #1
^ P0264: Cylinder #2
^ P0267: Cylinder #3
^ P0270: Cylinder #4

Circuit/System Testing DTC P0261, P0264, P0267 or P0270