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Home >> Suzuki >> 2008 >> XL7 Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Transmission >> Diagnostic Information and Procedures >> DTC P0601, P0602, P0603, or P0604 >> Circuit/System Description
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Circuit/System Description

This diagnostic applies to internal microprocessor integrity conditions within the transmission control module (TCM) system. This diagnostic also addresses if the TCM is not programmed.