Chevrolet Trax Owners & Service Manuals

Chevrolet Trax: Actuator recalibration

HVAC Control Module Replacement

When replacing or disconnecting the HVAC control module, it will be necessary to perform a recalibration process. When installing or reconnecting the HVAC control module, be sure to perform the following: Preferred Method (with Scan Tool)

NOTE: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted, improper HVAC performance will result.

  1. Ignition OFF.
  2. Disconnect the scan tool.
  3. Install/connect the HVAC control module.
  4. Connect all previously disconnected components.
  5. Start the vehicle.
  6. With the scan tool, initiate the HVAC Actuators Learn feature of the HVAC control module Special Functions menu.
  7. Operate system and verify that no DTCs have set as current DTCs.
  8. If DTC B101E 4B is set after attempting the actuator recalibration procedure, perform the following:

  1. Verify which actuator does not have a scan tool learn status parameter status of complete.
  2. Verify the unlearned actuator is physically rotating - A common cause of DTC B101E 4B is an actuator that is electrically OK but fails to physically rotate (e.g. stripped gears).
  3. If the unlearned actuator is not physically rotating, replace the actuator, otherwise replace the HVAC control module.

Alternate Method (without Scan Tool)

NOTE: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted, improper HVAC performance will result.

  1. Clear all DTCs.
  2. Ignition OFF.
  3. Install/connect the HVAC control module.
  4. Connect all previously disconnected components.
  5. Remove the HVAC control module fuse for a minimum of 10 s.
  6. Install the HVAC control module fuse.
  7. Start the vehicle.
  8. Wait 40 s for the HVAC control module to self-calibrate.

Actuator Replacement

When replacing an HVAC actuator it will be necessary to allow the HVAC control module to perform a recalibration process. When installing an HVAC actuator be sure to perform one of the following: Preferred Method (with Scan Tool)

NOTE: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted, improper HVAC performance will result.

  1. Clear all DTCs.
  2. Ignition OFF.
  3. Install the HVAC actuator.
  4. Connect all previously disconnected components.
  5. Start the vehicle.
  6. With the scan tool, initiate the HVAC Actuators Relearn feature of the HVAC control module Special Functions menu.
  7. Operate system and verify that no DTCs have set as current DTCs.
  8. If DTC B101E 4B is set after attempting the actuator recalibration procedure, perform the following:

  1. Verify which actuator does not have a scan tool learn status parameter status of complete.
  2. Verify the unlearned actuator is physically rotating - A common cause of DTC B101E 4B is an actuator that is electrically OK but fails to physically rotate (e.g. stripped gears).
  3. If the unlearned actuator is not physically rotating, replace the actuator, otherwise replace the HVAC control module.

Alternate Method (without Scan Tool)

NOTE: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted, improper HVAC performance will result

  1. Clear all DTCs.
  2. Ignition OFF.
  3. Install the HVAC actuator.
  4. Connect all previously disconnected components.
  5. Remove the HVAC control module fuse for a minimum of 10 s.
  6. Install the HVAC control module fuse.
  7. Start the vehicle.
  8. Wait 40 s for the HVAC control module to self-calibrate.

    READ NEXT:

     Repair instructions

     Heater and air conditioning control replacement

    Fig. 6: Heater And Air Conditioning Control Heater and Air Conditioning Control Replacement HEATER AND AIR CONDITIONING REMOTE CONTROL REPLACEMENT Fig. 7: Heater And Air Conditioning Remote Cont

     Inside air moisture and windshield temperature sensor replacement (with CJ2)

    Fig. 15: Inside Air Moisture And Windshield Temperature Sensor (With CJ2) Inside Air Moisture and Windshield Temperature Sensor Replacement (With CJ2) SUN LOAD TEMPERATURE SENSOR REPLACEMENT Fi

    SEE MORE:

     Additional Maintenance and Care

    Your vehicle is an important investment and caring for it properly may help to avoid future costly repairs. To maintain vehicle performance, additional maintenance services may be required. It is recommended that your dealer perform these services - their trained dealer technicians know your vehicl

     Automatic transmission hydraulic diagrams

    Park - Engine Running (Gen 2/Hybrid) When the gear selector lever is in the Park (P) position, fluid is drawn into the pump through the transmission fluid filter assembly. Line pressure is then directed to the following valves: Fluid Pressure Directed in Preparation for a Shift Manual Valve Mechani

    © 2019-2024 Copyright www.chevtrax.com