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.
- Remove the High Voltage Disconnect connector under the hood.
- Raise the vehicle.
- Remove two nuts from under the skid plate.
- Remove the two bolts and nuts that attach the skid plate to the
battery pack.
- Remove the five bolts that retain the skid plate to the bottom
of the vehicle and remove the skid plate.
- Disconnect the electrical connector (1)
from the airflow sensor.
- 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.
- Remove the ¼ in screw from the lower hose connection
at the BTM.
- Disconnect the hose from the BTM.
- Loosen the hose clamp from upper hose connection at the airflow
sensor. The clamp can be left on the hose.
- Remove the ¼ in screw from the upper hose connection
at the airflow sensor.
- Disconnect the hose from the upper hose connection at the old
airflow sensor.
- 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.
- Measure and mark the hose 63 mm (2.5 in) from the
end that was connected to the upper connection at the airflow sensor.
- Cut the hose at the point marked.
- 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.
- Grasp the lower hose and pull until the "T" is at the top of the
BTM.
- Connect the hose at the bottom of the BTM.
- Install the ¼ in screw to the lower connection at
the BTM.
- Tighten the hose clamp at the lower connection.
- Connect the hose at the top of the old airflow sensor.
- Install the ¼ in screw to upper connection at the
old airflow sensor.
- Tighten the hose clamp at the old airflow sensor.
- Position the "T" so the airflow sensor points toward the front
of the truck.
- Tighten all hose clamps.
- 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.
- Connect the electrical connector to the new airflow sensor.
- 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.
- Install the skid plate and the five retaining bolts.
Tighten
Tighten the bolts to 50 N·m (37 lb ft).
- Install the two bolts and nuts attaching the skid plate to the
battery pack.
Tighten
Tighten to 75 N·m (55 lb ft).
- Install the two nuts to the skid plate.
Tighten
Tighten the nuts to 5 N·m (44 lb in).
- Lower the vehicle.
- Install the High Voltage Disconnect under the hood.
- 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
|