CTS V8-5.7L VIN P (2004)
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The right rear door module (RRDM)
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The radio antenna module
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The TV antenna module
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The vehicle communication interface module (VCIM)
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The rear integration module (RIM)
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The front passenger door module (FPDM)
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SP300
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The audio amplifier
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The left rear door module (LRDM)
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The driver door switch assembly (DDSA)
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The driver door module (DDM)
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The memory seat module (MSM) w/A45
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SP200 - The theft deterrent control module
Left Hand Drive (LHD) Class 2 Loop
Refer to Data Link Connector (DLC) Schematics and the illustration in order to familiarize yourself with the architecture of the class 2 serial data
circuit:
CLASS 2 SERIAL DATA CIRCUIT RIGHT HAND DRIVE (RHD)
The class 2 serial data circuit on this vehicle consists of a hybrid ring and star configuration. Each module on the ring has 2 class 2 serial data circuits
connected to it. If there is 1 open on the ring serial data communication will still take place. If there is more than 1 open on the ring, the modules not
connected to the class 2 serial data circuit will not communicate. If there is 1 open on the star, the module not connected to the class 2 serial data
circuit will not communicate. The following modules and splice packs are connected to the class 2 serial data circuit in a ring fashion:
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SP201
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SP303
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The inflatable restraint sensing and diagnostic module (SDM)
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SP300
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The dash integration module (DIM)
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The radio
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The HVAC control module
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The electronic control module (ECM)
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The electronic brake control module (EBCM)
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SP200
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The instrument panel cluster (IPC)
The star has the following 4 splice packs:
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SP201 located in the right side of the instrument panel, near the steering column, taped to the instrument panel harness.
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SP303 located in the right rear of the passenger compartment, taped to the body harness, approximately 24 cm (9.5 in) from the fuse block - right
rear.