Test P: No International Standards Organization (ISO) 9141 Network Communication

PINPOINT TEST P: NO INTERNATIONAL STANDARDS ORGANIZATION (ISO) 9141 NETWORK COMMUNICATION

P1-P2:

P3-P6:

P7-P11:

P11-P14:

P15:

Normal Operation
The following modules communicate using the ISO 9141 communications network:
- restraint control module (RCM)
- parking aid module
- luggage compartment lid module

The ISO 9141 network has a single-conductor data bus circuit 70 (LB/WH). The ISO 9141 communications network does not permit intermodule communication. When the diagnostic tool communicates to modules on the ISO 9141 communications network, the diagnostic tool must request all information or initiate module commands.

Possible Causes
- ISO 9141 circuit 70 (LB/WH) open, short to ground, or short to voltage
- data link connector (DLC) C251
- RCM C310a
- parking aid module C4014
- luggage compartment lid module C4081a
- RCM
- parking aid module
- luggage compartment lid module