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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Control System - 4.6L (LH2) - DTC P0690 To P2135) >> DTC P0700 >> Circuit Description

Circuit Description

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This DTC indicates that an emissions related transmission fault has occurred. The transmission control module (TCM) has no direct control of the malfunction indicator lamp (MIL), but if a transmission fault occurs that is emissions related, the MIL must illuminate. The TCM transmits a MIL request signal over the controller area network (CAN) bus to the engine control module (ECM) and the ECM will turn ON the MIL. This allows the MIL to illuminate, even though the fault was detected by the TCM. If a TCM MIL request signal is received by the ECM, DTC P0700 will set.

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