P0700

DTC P0700

CIRCUIT DESCRIPTION
This DTC indicates that the engine control module (ECM) received a message from the transmission control module (TCM) to turn on the malfunction indicator lamp (MIL) telltale due to a transmission related OBD II failure. The ECM will send a message via the controller area network (CAN) link to the body control module (BCM) who will send a message over the class II link to the I/P cluster to turn on the MIL.

CONDITIONS FOR RUNNING THE DTC
The engine is running.

CONDITIONS FOR SETTING THE DTC
DTC P0700 will set if the ECM received a MIL request message from the TCM over the CAN link.

ACTION TAKEN WHEN THE DTC SETS
- The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.
- The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame/Failure Records.

CONDITIONS FOR CLEARING THE MIL/DTC
- The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
- A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
- A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
- Clear the MIL and the DTC with a scan tool.

TEST DESCRIPTION

Steps 1-8:

The number below refers to the step number on the diagnostic table.
3. If the TCM has DTCs set that are requesting MIL illumination, those DTCs must be diagnosed first.