B071F

DTC B071F

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Diagnostic Procedure Instructions) provides an overview of each diagnostic category.

DTC Descriptor
DTC B071F 39
- Transmission Range Indicator Internal Malfunction

Circuit/System Description

The body control module (BCM) receives LIN-Bus messages from the transmission range indicator module. If there is a checksum or memory malfunction in the transmission range indicator module it broadcast this message to the BCM.

Conditions for Running the DTC

Ignition ON

Conditions for Setting the DTC

The BCM detects a checksum or memory fault in the transmission range indicator module.

Action Taken When the DTC Sets

The driver information center does not display the actual gear selector position.

Conditions for Clearing the DTC

The DTC becomes history when the condition for setting the DTC is no longer present.

Reference Information
Schematic Reference

Automatic Transmission Controls Schematics (Diagrams)
Connector End View Reference

Component Connector End Views (Connector End Views By Name)
Description and Operation

Driver Information Center (DIC) Description and Operation (Driver Information Center (DIC))
Electrical Information Reference

* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information

Circuit/System Verification

Replace the S3 Automatic Transmission Shift Lever and verify that the DTC does not reset.

If the DTC resets, replace the K9 Body Control Module.

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

* Automatic Transmission Range Selector Lever Replacement (Service and Repair) for MXE
* Automatic Transmission Range Selector Lever Replacement (Automatic Transmission Range Selector Lever Replacement) for MH2, MH4
* Control Module References (Programming and Relearning) for BCM replacement, setup and programming