P0207

Circuit Description

This PCM contains a General F.E.T. (Field Effect Transistor) Driver (GFD) that controls the eight fuel injector drivers. The GFD contains circuitry that is used to determine if there is a problem with any of the fuel injector circuits. The GFD has a fault line for each injector. The fault line goes high when an open, short to ground, or short to voltage is noticed in an injector circuit. DTC P0207 is set when the fault line for injector # 7 is high.

Conditions for Running the DTC

^ DTCs P0560 and P1376 not set.
^ Ignition voltage between 10 and 16 volts.

Conditions for Setting the DTC

An injector circuit fault is detected for 0.5 second.

Action Taken When the DTC Sets

^ The faulty injector is disabled for the engine run cycle.
^ PCM disables Closed Loop operation.
^ The PCM will illuminate the Malfunction Indicator Lamp (MIL) when the diagnostic runs and fails.
^ The PCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Freeze Frame and Failure Records.

Conditions for Clearing the MIL/DTC

^ The PCM will turn the MIL OFF after three consecutive drive trips that the diagnostic runs and does not fail.
^ A Last Test Failed (current) DTC will clear when the diagnostic runs and does not fail.
^ A History DTC will clear after forty consecutive warm-up cycles with no failures of any emission related diagnostic test.
^ Use a scan tool to clear DTCs.
^ Interrupting PCM battery voltage may or may not clear DTCs. This practice is not recommended. Refer to Clearing Diagnostic Trouble Codes. Reading and Clearing Diagnostic Trouble Codes

Test Description

Number(s) below refer to the step number(s) on the diagnostic table.

4. Refer to the system mechanization for the fuses which supply these circuits.