Skip to content
Tahoe / Yukon Service Manual

DTC B196A

Diagnostic Instructions Perform the Diagnostic System Check prior to using this diagnostic procedure: Diagnostic System Check - Vehicle Review the description of Strategy Based Diagnosis: Strategy Based Diagnosis An overview of each diagnostic category can be found here: Diagnostic Procedure Instructions DTC Descriptor DTC B196A Electronic Compass Module For symptom byte information, refer to Symptom Byte List. Circuit/System Description The compass module communicates with the body control module (BCM) through the local interconnect network 3 (LIN) data circuit. The P16 Instrument Panel Cluster Control Module receives compass information from the BCM via the serial data circuit. The P16 Instrument Panel Cluster Control Module displays compass information in the driver information center (DIC). For an overview of the component/system, refer to: Instrument Cluster Description and Operation Conditions for Running the DTC Ignition » On / Vehicle » In Service Mode Conditions for Setting the DTC K9 Body Control Module Detected Electronic Compass Module = Internal Malfunction Actions Taken When the DTC Sets No additional actions taken Conditions for Clearing the DTC The conditions for setting the DTC no longer exist. Reference Information Connector End View Reference Master Electrical Component List Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References Circuit/System Verification

  1. Ignition » On / Vehicle » In Service Mode
  2. Verify DTC B196A is not set. ⇒ If the DTC is set Replace the component: K18 Compass Module ⇓ If the DTC is not set
  3. All OK. Repair Instructions Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification Control Module References for control module replacement, programming and setup