Operation CHARM: Car repair manuals for everyone.

Blind Spot Monitoring




Blind Spot Monitoring

Pinpoint Test J: DTC U0140:00

Normal Operation

The Side Obstacle Detection Control Module - Right (SOD-R) and Side Obstacle Detection Control Module - Left (SOD-L) receive network messages from the Body Control Module (BCM) via the Medium Speed Controller Area Network (MS-CAN). The following information is included in the messages:

- Transmission gear selected

- Vehicle speed

As more than one module receives these messages, all modules receiving a particular message should exhibit a symptom if the message is missing.

- DTC U0140:00 (Lost Communication With Body Control Module: No Sub Type Information) - set by the SOD-R (Side Obstacle Detection Control Module - Right) or the SOD-L (Side Obstacle Detection Control Module - Left) when network messages are missing from the BCM (Body Control Module) with the ignition in RUN.

This pinpoint test is intended to diagnose the following:

- Communication network concern

- Blind Spot Information System (BLIS(R))/Cross Traffic Alert (CTA) system concern

- BCM (Body Control Module)