Test L: No Universal Asynchronous Receiver-Transmitter (UART)-Based Protocol (UBP) Network Communication

PINPOINT TEST L: NO UNIVERSAL ASYNCHRONOUS RECEIVER-TRANSMITTER (UART)-BASED PROTOCOL (UBP) NETWORK COMMUNICATION

Normal Operation
The UBP network is comprised of the driver seat module (DSM) (if equipped), the heating ventilation air conditioning (HVAC) module (if equipped), the vehicle security module (VSM) (if equipped) and the instrument cluster (IC). The IC does not communicate with the scan tool on the UBP network but does communicate with the other UBP network modules, if equipped.

This pinpoint is intended to diagnose the following:
- Wiring, terminals or connectors
- DSM
- HVAC module
- IC
- VSM

L1-L3:

L3-L6:

L7-L13:

L14-L16: