DTC P0700
Diagnostic Instructions
DTC Descriptor
DTC P0700 00: Transmission Control Module Requested MIL Illumination
Circuit/System Description
This diagnostic trouble code (DTC) indicates that an emission related transmission DTC set in the transmission control module (TCM). The engine control module (ECM) receives the TCM information over the serial data circuit. The ECM turns ON the malfunction indicator lamp (MIL) when the TCM sends a message over the serial data circuit requesting MIL illumination. The DTC information for the ECM will only display DTC P0700, but the Freeze Frame/Failure Records data will display the transmission DTC that set.
Conditions for Running the DTC
| • | The ignition is ON or the engine is running. |
| • | The ignition voltage is between 11-18 V. |
| • | The DTC runs continuously once the above conditions are met. |
Conditions for Setting the DTC
The TCM is requesting MIL illumination.
Action Taken When the DTC Sets
DTC P0700 00 is a Type A DTCs.
Conditions for Clearing the DTC
DTC P0700 00 is a Type A DTCs.
Diagnostic Aids
To clear DTC P0700 00 from the ECM, you must clear DTC P0700 00 from the TCM first.
Circuit/System Verification
Note: Correct any engine controls DTCs before diagnosing TCM DTCs.
DTC P0700 00 is an informational DTC. If there are no engine controls DTCs, refer to Diagnostic Trouble Code (DTC) List - Vehicle for diagnosis of TCM DTCs.
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