Test P: The Dual Climate Control Seat Module (DCSM) Does Not Respond To The Scan Tool

PINPOINT TEST P: THE DUAL CLIMATE CONTROL SEAT MODULE (DCSM) DOES NOT RESPOND TO THE SCAN TOOL

Normal Operation
The dual climate control seat module (DCSM) communicates with the scan tool through the medium speed controller area network (MS-CAN). Circuits VDB06 (GY/OG) (MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the DCSM. Voltage for the DCSM is provided by circuits SBB11 (BU/RD) and SBB12 (GN/RD). Circuit GD139 (BK/YE) provides ground.

The DCSM shares the MS-CAN with the following modules:
- Accessory protocol interface module (APIM) (if equipped)
- Audio control module (ACM)
- Audio digital signal processing (DSP) module (if equipped)
- Driver seat module (DSM) (if equipped)
- Driver door module (DDM) (if equipped)
- Heating ventilation air conditioning (HVAC) module (if equipped)
- Instrument cluster (IC)
- Parking aid module (PAM) (if equipped)
- Satellite digital audio receiver system (SDARS) module (if equipped)
- Smart junction box (SJB)

This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- DCSM

P1-P2:

P2-P5:

P5-P6: