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Home >> GMC >> 2021 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 157 (Lighting System) >> Diagnostic Information and Procedures >> Exterior Courtesy Lamps Malfunction >> Scan Tool Functions

Scan Tool Functions

WARNING: This page is about a different car, the 2021 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
K84 Keyless Entry Control Module - Data Display

Data Parameter Description
Key Fob 1 in Vehicle This data parameter will show if RKE transmitter 1 is in the vehicle as Active/Inactive.
Key Fob 2 in Vehicle This data parameter will show if RKE transmitter 2 is in the vehicle as Active/Inactive.
Transmitter Approach Detected - Rear This data parameter will show the status of the RKE transmitter as it approaches the rear of the vehicle:
  • None
  • Key Fob 1
  • Key Fob 2
  • Multiple Key Fobs
Approach Detection Disable Reason This data parameter will show the disable reason for either Key Fob 1 or Key Fob 2:
  • None
  • Key Fob Timer Transitioning
  • Key Fob in Vehicle
  • Detection Rate Exceeded
  • Communication with Transmitter Not Successful
  • Detection Disabled
K84 Keyless Entry Control Module - Control Functions

Control Function Description
Hands-Free Liftgate Sensor Lamp This control function will control the E72 Hands - Free Liftgate Sensor Lamp On/Off.