Code
B1997
LAND ROVER
B — Body
Right airbag circuit short to ground
Views:
UK: 5
EN: 11
RU: 2
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (abrasion, chafing, pinched at door hinge/seat rail)
- Corroded or bent connector pins at the airbag module, clock spring or junction connectors
- Water/moisture ingress in connectors or wiring
- Poor previous repair (incorrect splices, improper terminals, taped repairs)
- Internal short inside the airbag module (squib) or associated pretensioner
- Faulty SRS control module
Symptoms
- SRS / Airbag warning light illuminated on dash
- Right airbag (or associated pretensioner) disabled or reported as faulty in scan tool
- Possible diagnostic trouble codes stored related to SRS
- Vehicle may fail airbag system self-test / safety inspection
What to check
- Read and record all SRS codes and freeze-frame data using a compatible airbag scan tool
- Verify battery voltage is within normal range before testing
- Visual inspection of right airbag module connector, harness routing, and common failure points (hinges, seat rails, B-pillar)
- Inspect connectors for corrosion, bent pins, or pushed-out terminals
- Measure squib circuit resistance at the module connector with SRS power disabled per manufacturer procedure
- Check for continuity from the squib circuit to chassis ground (should NOT have continuity)
Signal parameters
- With ignition off and SRS power disabled: squib loop low resistance expected (typically a few ohms across squib leads) — consult vehicle manual for exact ohms
- No continuity (very high resistance/OL) between squib positive lead and chassis ground
- SRS control module communicates diagnostic status via vehicle bus; refer to scan tool live data for circuit status
- Do not apply high voltage to the squib circuit — use proper SRS diagnostic tools
Diagnostic algorithm
- PRIORITY SAFETY: Follow the manufacturer's SRS safety procedure before touching connectors (disable battery and wait the specified time, or use manufacturer's isolation tool).
- Retrieve and record all SRS codes and module data with a suitable scan tool. Note if multiple SRS circuits show faults.
- Perform a visual inspection of the right airbag connector, associated harness, and common wear points (seat rails, door hinges, B-pillar). Look for chafing, cuts, corrosion or water entry.
- With SRS power safely disabled, disconnect the right airbag connector at the module and measure resistance across the squib terminals. Compare with service manual specification.
- Check continuity between each squib terminal and chassis ground. A short-to-ground will show low resistance — expected result is very high resistance (open).
- If the harness shows a short-to-ground, trace wiring back from the module, inspecting intermediate connectors and repair points. Repair/replace damaged sections using approved SRS repair methods and correct terminals.
- If wiring and connectors test good, swap or bench-test the airbag module only following manufacturer guidance (do not attempt high-voltage deployment tests outside of proper equipment).
- If module replacement is required, ensure replacement is a correct OEM part and verify connector pin condition before fitting.
- Clear codes, reconnect battery per safety procedure, and re-scan. Confirm fault does not return and that SRS lamp extinguishes after system re-check.
Likely causes
- Wiring damage at hinge points or under-seat routing causing insulation breach to chassis ground
- Corroded/contaminated connector at right airbag or intermediate connector
- Aftermarket/previous repair splice left exposed and contacting ground
Fault status
Status
Right airbag circuit short to ground — SRS control module detects low resistance path from the right airbag squib circuit to chassis ground.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
B1997
Other
B — Body
Passenger Sid, Side mount Airbag Circuit Short to Ground
Views:
UK: 20
EN: 35
RU: 13
AI status
Completed
Completed
100%
Causes
- Damaged wiring harness (abrasion, chafing, pinched at door hinge/seat rail)
- Corroded or bent connector pins at the airbag module, clock spring or junction connectors
- Water/moisture ingress in connectors or wiring
- Poor previous repair (incorrect splices, improper terminals, taped repairs)
- Internal short inside the airbag module (squib) or associated pretensioner
- Faulty SRS control module
Symptoms
- SRS / Airbag warning light illuminated on dash
- Right airbag (or associated pretensioner) disabled or reported as faulty in scan tool
- Possible diagnostic trouble codes stored related to SRS
- Vehicle may fail airbag system self-test / safety inspection
What to check
- Read and record all SRS codes and freeze-frame data using a compatible airbag scan tool
- Verify battery voltage is within normal range before testing
- Visual inspection of right airbag module connector, harness routing, and common failure points (hinges, seat rails, B-pillar)
- Inspect connectors for corrosion, bent pins, or pushed-out terminals
- Measure squib circuit resistance at the module connector with SRS power disabled per manufacturer procedure
- Check for continuity from the squib circuit to chassis ground (should NOT have continuity)
Signal parameters
- With ignition off and SRS power disabled: squib loop low resistance expected (typically a few ohms across squib leads) — consult vehicle manual for exact ohms
- No continuity (very high resistance/OL) between squib positive lead and chassis ground
- SRS control module communicates diagnostic status via vehicle bus; refer to scan tool live data for circuit status
- Do not apply high voltage to the squib circuit — use proper SRS diagnostic tools
Diagnostic algorithm
- PRIORITY SAFETY: Follow the manufacturer's SRS safety procedure before touching connectors (disable battery and wait the specified time, or use manufacturer's isolation tool).
- Retrieve and record all SRS codes and module data with a suitable scan tool. Note if multiple SRS circuits show faults.
- Perform a visual inspection of the right airbag connector, associated harness, and common wear points (seat rails, door hinges, B-pillar). Look for chafing, cuts, corrosion or water entry.
- With SRS power safely disabled, disconnect the right airbag connector at the module and measure resistance across the squib terminals. Compare with service manual specification.
- Check continuity between each squib terminal and chassis ground. A short-to-ground will show low resistance — expected result is very high resistance (open).
- If the harness shows a short-to-ground, trace wiring back from the module, inspecting intermediate connectors and repair points. Repair/replace damaged sections using approved SRS repair methods and correct terminals.
- If wiring and connectors test good, swap or bench-test the airbag module only following manufacturer guidance (do not attempt high-voltage deployment tests outside of proper equipment).
- If module replacement is required, ensure replacement is a correct OEM part and verify connector pin condition before fitting.
- Clear codes, reconnect battery per safety procedure, and re-scan. Confirm fault does not return and that SRS lamp extinguishes after system re-check.
Likely causes
- Wiring damage at hinge points or under-seat routing causing insulation breach to chassis ground
- Corroded/contaminated connector at right airbag or intermediate connector
- Aftermarket/previous repair splice left exposed and contacting ground
Fault status
Status
Right airbag circuit short to ground — SRS control module detects low resistance path from the right airbag squib circuit to chassis ground.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
Similar codes
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
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0
Send to email