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HOMESERVICE MANUALSCHEVROLET2014CAMARO ZL1, 2D CONVERTIBLE, STANDARD TRANSREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSKEYLESS ENTRY SYSTEM AND REMOTE FUNCTIONSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B3101: KEYLESS ENTRY DATA LINKCIRCUIT/SYSTEM TESTING
2014 Chevrolet Camaro ZL1, 2D Convertible, Standard Trans

Circuit/System Testing

2014 Chevrolet Camaro ZL1, 2D Convertible, Standard TransSECTION Circuit/System Testing
  1. Ignition OFF and all vehicle systems OFF, scan tool disconnected, disconnect the harness connector at the K77 Remote Control Door Lock Receiver. It may take up to 2 min for all vehicle systems to power down.
  2. Test for less than 30 ohms between the low reference circuit terminal 1 and ground.
    • If 30 ohms or greater 
    1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.
    2. Test for less than 2 ohms in the low reference circuit end to end.
      • If 2 ohms or greater, repair the open/high resistance in the circuit.
      • If less than 2 ohms, replace the K9 Body Control Module.
    • If less than 30 ohms 
  3. Ignition ON.
  4. Test for greater than 11.5 V between the B+ circuit terminal 4 and ground.
    • If 11.5 V or less 
    1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.
    2. Test for infinite resistance between the B+ circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If Infinite resistance.
    3. Test for less than 2 ohms in the B+ circuit end to end.
      • If 2 ohms or greater, repair the open/high resistance in the circuit.
      • If less than 2 ohms, replace the K9 Body Control Module.
    • If greater than 11.5 V 
  5. Test for 1-6 V between the serial data circuit terminal 3 and ground.
    • If less than 1 V 
    1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.
    2. Test for infinite resistance between the serial data circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance
    3. Test for less than 2 ohms in the serial data circuit end to end.
      • If 2 ohms or greater, repair the open/high resistance in the circuit.
      • If less than 2 ohms, replace the K9 Body Control Module.
    • If greater than 6 V 
    1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition ON.
    2. Test for less than 1 V between the serial data circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V, replace the K9 Body Control Module.
    • If between 3-6 V 
  6. Ignition OFF, disconnect the X1 and X2 harness connectors at the K9 Body Control Module, ignition ON.
  7. Test for less than 1 V between the K9 Body Control Module serial data circuit terminal 27 X2 and ground.
    • If 1 V or greater 

      Repair the short to voltage on the circuit.

    • If less than 1 V 
  8. Ignition OFF.
  9. Test for infinite resistance between the K9 Body Control Module serial data circuit terminal 27 X2 and ground.
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • If infinite resistance 
  10. Test for less than 2 ohms between the K9 Body Control Module serial data circuit terminal 27 X2 and the K77 Remote Control Door Lock Receiver serial data circuit terminal 2.
    • If 2 ohms or greater 

      Repair the open/high resistance in the circuit.

    • If less than 2 ohms 
  11. Replace the K77 Remote Control Door Lock Receiver.
  12. Verify DTC B3101 does not set while operating the vehicle under the conditions for running the DTC.
    • If the DTC sets 

      Replace the K9 Body Control Module

    • If the DTC does not set 
  13. All OK.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.