System: Body | Standard: ISO/SAE Controlled | Fault type: Circuit
Definition source: SAE J2012 naming/structure guidance (verify exact wording against your official DTC dataset)
What Does B0114 Mean?
B0114 – Side impact module-Right Rear high and/or low circuits is short to ground or short to voltage is an ISO/SAE controlled Body system DTC with the enforced fault type Circuit. This code means the vehicle has detected that the right rear side impact module circuit(s) identified as high and/or low are experiencing an electrical short condition: either a short to ground or a short to voltage. In practical terms, one or both of these circuits are being pulled to ground potential or driven to a voltage level they should not have, preventing normal signal behavior.
B0114 describes an electrical problem in the circuit path (wiring, terminals, connectors, splices, or the component connected to the circuit). The code statement itself identifies the type of fault: an abnormal electrical short affecting the right rear side impact module high/low circuits.
Quick Reference
- DTC: B0114
- Official Title: B0114 – Side impact module-Right Rear high and/or low circuits is short to ground or short to voltage
- System: Body
- Standard classification: ISO/SAE Controlled
- Fault type: Circuit
- What it indicates: The right rear side impact module high and/or low circuits are shorted to ground or shorted to voltage
- Primary focus: Locate and correct the short (to ground or to voltage) affecting the identified high/low circuits
Symptoms
- Warning indicator: Airbag/SRS or restraint system warning light illuminated
- Stored fault code: B0114 stored in the Body/SRS-related module memory
- Reduced restraint readiness: The restraint system may be unable to rely on right rear side impact module circuit inputs while the short condition exists
- Intermittent behavior: If the short is intermittent, the warning may appear and clear depending on movement, vibration, or harness position
Common Causes
- Harness damage: Insulation rubbed through, pinched, or cut in the right rear side impact module high/low circuit routing, creating a short to ground or short to voltage
- Connector/terminal faults: Bent, backed-out, spread, or damaged terminals causing unintended contact between circuits or contact to ground/voltage
- Corrosion or moisture intrusion: Contamination in connectors or splices that creates conductive paths resulting in a short condition
- Wiring contact with power feed: Damaged circuit contacting a powered wire or feed point, producing a short to voltage
- Wiring contact with chassis/grounded metal: Damaged circuit contacting the body/chassis, producing a short to ground
- Component-related electrical fault: An internal fault in the right rear side impact module that causes the circuit to be shorted to ground or shorted to voltage (verify wiring integrity first)
Diagnosis Steps
Safety note: Follow the vehicle’s service information and required SRS/airbag safety procedures before disconnecting or testing restraint-related circuits. Use approved methods for depowering the system. Avoid using test lights on SRS circuits unless the service information explicitly permits it.
- Confirm the code and system context: Scan the vehicle and record B0114 along with any additional Body/SRS-related DTCs. Save freeze frame or event data if available. Confirm whether B0114 is present as current/active or stored/history.
- Verify the exact circuit identification: Using the correct wiring diagram and connector views for the vehicle, identify which wires are designated as the right rear side impact module high and low circuits, including connector pin numbers and any intermediate connectors or splices.
- Perform a targeted visual inspection: Inspect the harness routing and protection along the path to the right rear side impact module. Look for abrasion points, pinch locations, fastener damage, crushed conduit, and areas where the loom contacts sharp edges or moving parts.
- Inspect connectors and terminals: With the system in a safe state, disconnect the right rear side impact module connector(s). Check for moisture, corrosion, damaged seals, terminal push-out, bent pins, terminal spread, or signs of overheating. Repair connector issues found before deeper electrical testing.
- Check for short to ground (circuit isolated): With the relevant connectors disconnected (module side and, if required by service information, the controller side), measure resistance from each affected high/low circuit to chassis ground. A low resistance reading indicates a short to ground. If a short is present, isolate by separating the harness at intermediate connectors to narrow down the section containing the fault.
- Check for short to voltage (circuit isolated): With connectors disconnected and using the service information’s test conditions, check each affected high/low circuit for unwanted voltage. If voltage is present when the circuit should be isolated, locate the source of backfeed by unplugging related connectors and inspecting harness sections for contact with powered wiring.
- Check for cross-shorts between the high and low circuits: Measure resistance between the high and low circuits with the component disconnected. Unintended continuity can indicate damaged insulation or connector contamination causing circuit-to-circuit contact, which can be interpreted by the controller as an abnormal short condition.
- Wiggle test to locate intermittent shorts: While monitoring resistance/voltage readings (or scan tool status where appropriate), gently manipulate harness sections and connector bodies. If readings change with movement, focus on that segment for insulation damage, poor terminal fit, or moisture intrusion.
- Confirm circuit integrity after repairs: After correcting wiring/connector issues, recheck for absence of short to ground and short to voltage on the high/low circuits before reconnecting components.
- Verify the fix: Reconnect all connectors, restore the system per service procedures, clear DTCs, and perform an ignition cycle/self-test as specified. Rescan to confirm B0114 does not reset.
Need SRS wiring diagrams and connector views for this code?
SRS/airbag circuit faults require OEM connector views, harness routing diagrams, and approved test procedures. A repair manual helps you verify the exact circuit path safely before touching SRS components.
Possible Fixes
- Repair wiring damage: Restore insulation and conductor integrity on the right rear side impact module high/low circuits; replace damaged wire sections as needed
- Correct harness routing and protection: Secure the harness to prevent contact with sharp edges, fasteners, or pinch points; replace damaged loom or clips where required
- Repair connector and terminal issues: Remove corrosion, dry and clean affected connectors as permitted by service procedures, replace damaged terminals, and restore proper terminal tension and sealing
- Eliminate moisture intrusion sources: Repair leaks that allow water to reach connectors/splices and address any resulting connector or splice corrosion
- Replace the right rear side impact module if proven necessary: Only after confirming the high/low circuits are not shorted to ground or shorted to voltage and all connector/wiring concerns are resolved
Can I Still Drive With B0114?
The vehicle may still be drivable from a powertrain standpoint, but B0114 is a Body system circuit fault related to the restraint/side impact sensing network. A short to ground or short to voltage on the right rear side impact module high/low circuits can prevent correct operation of the affected portion of the restraint system. Because this code indicates an electrical short condition, it should be treated as a safety-related issue and diagnosed and repaired as soon as possible using the proper SRS safety procedures.
FAQ
Is B0114 a circuit code or a component code?
B0114 is enforced as a Circuit fault. The official meaning states the right rear side impact module high and/or low circuits are short to ground or short to voltage. Diagnosis should focus on identifying and correcting the short condition in the circuit path.
What does “high and/or low circuits” refer to in B0114?
It refers to the circuits labeled high and/or low for the right rear side impact module in the official code description. The exact wire names, pin numbers, and routing must be confirmed using the vehicle’s wiring diagram and service information.
What’s the difference between “short to ground” and “short to voltage” for B0114?
A short to ground means the circuit is unintentionally connected to ground potential. A short to voltage means the circuit is unintentionally receiving voltage (such as from a powered wire or feed). B0114 is set when either condition is detected on the right rear side impact module high and/or low circuits.
Should I replace the right rear side impact module right away?
Not automatically. The code’s meaning is a circuit short condition. Wiring, terminals, connectors, splices, or moisture-related conductive paths can create a short to ground or short to voltage. Component replacement should be considered only after testing confirms the circuit is not shorted and the fault is isolated to the module.
What should be confirmed after repairs for B0114?
After repairs, confirm there is no short to ground and no short to voltage on the right rear side impact module high/low circuits, then clear the code and verify B0114 does not return during the required self-test/ignition cycle specified in the service information.
