B0071 HUMMER - Passenger Seat Belt Tension Sensor Circuit
Repair Importance Level:
Repair Difficulty Level:
B0071 HUMMER Possible Causes
- Faulty Passenger Seat Belt Tension Sensor
- Passenger Seat Belt Tension Sensor harness is open or shorted
- Passenger Seat Belt Tension Sensor circuit poor electrical connection
- Faulty Sensing and Diagnostic Module (SDM)
First diagnose B0071 HUMMER code
-
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the B0071 HUMMER code
Labor: 1.0
The cost of diagnosing the B0071 HUMMER code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.B0071 HUMMER Possible Symptoms
- Air Bag Warning Light ON
B0071 HUMMER Meaning
The inflatable restraint seat belt tension sensor is a 3-wire potentiometer mounted on the retractor or buckle side of the seat belt and provides an input to the Passenger Presence System (PPS). When an infant car seat is properly restrained on the front passenger seat, the seat belt is tightly secured through the car seat. The seat belt pulls on the tension sensor and changes the voltage signal to the PPS module. The PPS monitors the seat belt tension sensor circuit and if a fault is detected, DTC will be set. When the PPS detects this DTC within the PPS, it will notify the customer of the enable/disable status by turning ON the OFF indicator on the PASSENGER AIR BAG ON/OFF indicators. Then the PPS will communicate to the Sensing and Diagnostic Module (SDM) through a serial data communications that a PPS fault is present. The SDM will then suppress the deployment of the Instrument Panel (I/P) module and then turn the AIR BAG indicator ON.
B0071 HUMMER More Information
Need more information on how to fix the B0071 HUMMER code?Get Access to Factory Service Manuals
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.