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Check Vehicle Message Displayed on Charger, Battery Pack Control Module DTC 267 Set (Replace and Relocate Airflow Sensor)

Subject:Check Vehicle Message Displayed on Charger, Battery Pack Control Module DTC 267 Set (Replace and Relocate Airflow Sensor)

Models:1997-1998 Chevrolet S-10 Electric Trucks
With Lead-Acid or NiMH Battery Packs



Condition

Some customers may comment that the vehicle will accept a charge for several minutes and then stop. A "Check Vehicle" message may be displayed on the charger. A check of DTCs may show a Battery Pack Control Module DTC 267 in current or in history.

Cause

An airflow sensor degradation due to water intrusion may cause this condition.

Correction

Relocate the airflow sensor using the following service procedure. The service kit contains the necessary parts to relocate the airflow sensor to the top of the Battery Thermal Module.

  1. Remove the High Voltage Disconnect connector under the hood.
  2. Raise the vehicle.
  3. Remove two nuts from under the skid plate.
  4. Remove the two bolts and nuts that attach the skid plate to the battery pack.
  5. Remove the five bolts that retain the skid plate to the bottom of the vehicle and remove the skid plate.

  6. Object Number: 818428  Size: SH
  7. Disconnect the electrical connector (1) from the airflow sensor.
  8. Loosen the hose clamp from the lower airflow sensor hose connection at the Blower Thermal Module (BTM). The clamp can be left on the hose.
  9. Remove the ¼ in screw from the lower hose connection at the BTM.
  10. Disconnect the hose from the BTM.
  11. Loosen the hose clamp from upper hose connection at the airflow sensor. The clamp can be left on the hose.
  12. Remove the ¼ in screw from the upper hose connection at the airflow sensor.
  13. Disconnect the hose from the upper hose connection at the old airflow sensor.
  14. Grasp the hose at the uppermost point and pull down until sufficient room is available to install the new airflow sensor (T) into the hose.
  15. Measure and mark the hose 63 mm (2.5 in) from the end that was connected to the upper connection at the airflow sensor.
  16. Cut the hose at the point marked.

  17. Object Number: 818486  Size: SH
  18. Install a clamp to each end of the newly cut hose and insert the "T" into the hose ends. Leave the hose clamps loose so the hoses and "T" assembly can be properly aligned.
  19. Grasp the lower hose and pull until the "T" is at the top of the BTM.
  20. Connect the hose at the bottom of the BTM.
  21. Install the ¼ in screw to the lower connection at the BTM.
  22. Tighten the hose clamp at the lower connection.
  23. Connect the hose at the top of the old airflow sensor.
  24. Install the ¼ in screw to upper connection at the old airflow sensor.
  25. Tighten the hose clamp at the old airflow sensor.
  26. Position the "T" so the airflow sensor points toward the front of the truck.
  27. Tighten all hose clamps.
  28. Inspect the airflow electrical connector for corrosion and/or damage. If damage is present, replace the connector with the new one provided in the kit. Follow the directions provided in the kit for proper installation of the new connector.
  29. Connect the electrical connector to the new airflow sensor.
  30. Leave the old airflow sensor in place and use RTV to fill in the old airflow sensor electrical connector cavity. This prevents the harness from being re-connected to the old airflow sensor in the future.
  31. Install the skid plate and the five retaining bolts.
  32. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).

  33. Install the two bolts and nuts attaching the skid plate to the battery pack.
  34. Tighten
    Tighten to 75 N·m (55 lb ft).

  35. Install the two nuts to the skid plate.
  36. Tighten
    Tighten the nuts to 5 N·m (44 lb in).

  37. Lower the vehicle.
  38. Install the High Voltage Disconnect under the hood.
  39. Place the vehicle on Charge and, using a scan tool, verify proper airflow.

Parts Information

Part Number

Description

Qty

27005744

Kit Asm, Airflow Sensor

1

Parts are currently available from GMSPO.

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

D2127

Sensor, Battery Thermal Module Air-flow-Replace

0.8 hr

Add

If necessary to replace wiring connector

0.2 hr