B13B7 - Second Row Right Inflatable Seatbelt Deployment Control Circuit
B13B7 Possible Causes
- Faulty Second Row Right Inflatable Seatbelt
- Second Row Right Inflatable Seatbelt harness is open or shorted
- Second Row Right Inflatable Seatbelt circuit poor electrical connection
- Faulty Restraints Control Module (RCM)
First diagnose B13B7 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 connector's pins.
B13B7 Tech NotesB13B7:11 Second Row Right Inflatable Seatbelt Deployment Control Circuit Short to Ground
B13B7:12 Second Row Right Inflatable Seatbelt Deployment Control Circuit Short to Battery
B13B7:13 Second Row Right Inflatable Seatbelt Deployment Control Circuit Open
B13B7:1A Second Row Right Inflatable Seatbelt Deployment Control Circuit Resistance Below Threshold
Cost of diagnosing the B13B7 code
Labor: 1.0The cost of diagnosing the B13B7 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
B13B7 Possible Symptoms
- Air Bag Warning Light ON
B13b7 DescriptionThe Restraints Control Module (RCM) analyzes the deployment loop resistance to determine if a fault exists. The value displayed in the Parameter Identification (PID) is the deployment loop resistance measured by the Restraints Control Module (RCM). If the value displayed is lower or higher than the desired range, the Restraints Control Module (RCM) can set a Diagnostic Trouble Code (DTC). As the deployment loop resistance drifts farther outside the desired range, the chance for a Diagnostic Trouble Code (DTC) increases. Small variations in resistance can occur due to the effect of road vibrations on terminal fit. Crimps and terminals can be affected by stress and harness movement and can cause an increase in resistance due to wire strain. These variables can result in an intermittent fault. For this reason, the test requires the Parameter Identification (PID) value to be within the desired range before the fault is considered repaired, regardless if the module is reporting an on-demand Diagnostic Trouble Code (DTC) at the time of diagnosis. Following this direction helps make sure that minor changes in resistance do not create a repeat concern.
B13B7 More InformationNeed more information on how to fix the B13B7 code?
Get Access to Factory Service Manuals
B13B7 Information for specific makes
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.
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