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Tahoe / Yukon Service Manual

DTC C116D

Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptor DTC C116D 54 Tire Pressure Monitoring System = Missing Calibration DTC C116D 56 Tire Pressure Monitoring System = Invalid / Incompatible Configuration Circuit/System Description For an overview of the component/system, refer to: Tire Pressure Monitor Description and Operation Conditions for Running the DTC Ignition On/Vehicle in Service Mode. Ignition Voltage 9–16 volts. Conditions for Setting the DTC C116D 54 Incomplete or failed Manual Learn (due to either timing out after learning at least one sensor and not learning all four sensors or exiting learn mode after learning at least one sensor and vehicle being out of PARK or vehicle power mode not in RUN/Propulsion). C116D 56 The tire type and placard information for the front and rear have not been programmed. Action Taken When the DTC Sets The tire pressure monitor indicator icon on the instrument panel cluster (IPC) flashes 60 to 90 seconds and then remains illuminated after the ignition switch is cycled ON and the IPC bulb check is complete. If equipped, the DIC displays a service tire monitor type message and dashes for all 4 tires. Conditions for Clearing the DTC A history DTC will clear after 40 ignition cycles. C116D 54 A current DTC will be cleared after tire pressure sensors are learned through a manual learn, autolearn, or sensor ID write using EL-52545 tool. C116D 56 A current DTC will be cleared after all bytes in the tire type and placard DID’s contain valid values. Reference Information Scan Tool Reference Control Module References for scan tool information Circuit/System Verification DTC C116D 54 Perform the following learn procedure: Tire Pressure Indicator Sensor Learn. DTC C116D 56

  1. Ignition On/Vehicle in Service Mode.
  2. Enter the tire type and pressure (placard) information into the K9 Body Control Module with a scan tool. Refer to Vehicle Certification, Tire Placard, and Anti-Theft Label, Control Module References.
  3. Perform the following learn procedure: Tire Pressure Indicator Sensor Learn.
  4. Ignition OFF, then Ignition On/Vehicle in Service Mode.
  5. Verify DTC C116D 56 is not set. ⇒ If the DTC is set Replace the K9 Body Control Module ⇓ If the DTC is not set
  6. All OK. Repair Instructions Perform the Diagnostic Repair Verification after completing the repair. Control Module References for control module replacement, programming, and setup.