K 2500 Yukon 4WD V8-6.0L VIN U (2000)
Air Bag(s) Arming and Disarming: Service Precautions
CAUTION: When you are performing service on or near the SIR components or the SIR wiring, you must disable the SIR system. Refer to
Disabling the SIR System. Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary SIR system
repairs.
CAUTION: Be careful when you handle a Sensing and Diagnostic Module (SDM). Do not strike or jolt the SDM. Before applying power to the
SDM:
^
Remove any dirt, grease, etc. from the mounting surface
^
Position the SDM horizontally on the mounting surface
^
Point the arrow on the SDM toward the front of the vehicle
^
Tighten all of the SDM fasteners and SDM bracket fasteners to the specified torque value
Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary SIR system repairs.
CAUTION: If any water enters the vehicle's interior up to the level of the carpet or higher and soaks the carpet, the sensing and diagnostic
module (SDM) and the SDM harness connector may need to be replaced. The SDM could be activated when powered, which could cause
deployment of the air bag(s) and result in personal injury. Before attempting these procedures, the SIR system must be disabled. Refer to
Disabling the SIR System.
With the ignition OFF, inspect the SDM mounting area, including the carpet If any significant soaking or evidence of significant soaking is
detected, you must perform the following tasks:
1. Remove all water.
2. Repair the water damage
3. Replace the SDM harness connector.
4. Replace the SDM.
Failure to follow these tasks could result in possible air bag deployment, personal injury, or otherwise unneeded SIR system repairs.
CAUTION: Be careful when you handle a sensor. Do not strike or jolt a sensor. Before applying power to a sensor:
^
Remove any dirt, grease, etc. from the mounting surface.
^
Position the sensor horizontally on the mounting surface.
^
Point the arrow on the sensor toward the front of the vehicle.
^
Tighten all of the sensor fasteners and sensor bracket fasteners to the specified torque value.
Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary SIR system repairs.
