MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Body & Paint

Pinpoint Test - DTC: AE

501-20B Supplemental Restraint System

2016 MustangReference 2,025 / 6,619HTML edition
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501-20B Supplemental Restraint System 2016 Mustang

Diagnosis and Testing Procedure revision date: 10/9/2015

Pinpoint Test - DTC: AE

U0140:00

Normal Operation and Fault Conditions

The RCM uses information contained in messages from the BCM sent on the HS-CAN2.

DTC Fault Trigger Conditions

Description

Fault Trigger Conditions

U0140:00 Lost Communication with Body Control Module:

No Sub Type Information

This DTC sets if the RCM does not receive an expected message from the BCM.

DTC

Possible Sources

Network traffic BCM RCM

PINPOINT TEST A : U0140:00

WARNING: Do not handle, move or change the original horizontal mounting position of the Restraints Control Module (RCM) while the Restraints Control Module (RCM) is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy® and cause serious personal injury or death.

NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.

NOTE: SRS components should only be disconnected or reconnected when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS.

NOTE: Always make sure the correct SRS component is being installed. Parts released for other vehicles may not be compatible even if they appear physically similar. Check the part number listed in the Ford parts catalog to make sure the correct component is being installed. If an incorrect SRS component is installed, Diagnostic Trouble Codes (DTCs) may set.

NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

A1 CHECK THE COMMUNICATION NETWORK

REFER to: Pyrotechnic Device Health and Safety Precautions (100-00 General Information, Description and Operation). Ignition ON. Using a diagnostic scan tool, carry out a network test.

Does the BCM pass the network test?

Source reference 2025

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.