Code
B1453
MITSUBISHI
B — Body
FL curtain ABG squib SHT.to BAT
Views:
UK: 7
EN: 10
RU: 5
AI status
Completed
Completed
100%
Causes
- Short to battery (positive) on the FL curtain squib circuit
- Damaged or chafed wiring harness (pinched/abraded insulation)
- Corroded, bent, or contaminated connector pins at the squib or control module
- Faulty curtain airbag squib (internal short in inflator/squib)
- Poor or loose connector connection
- Aftermarket equipment or previous repairs that disturbed the wiring
Symptoms
- SRS / airbag warning lamp ON (driver dash)
- Front-left curtain airbag disabled (may be indicated by the vehicle or inferred from DTC)
- Possible other SRS-related DTCs stored
- Inoperative or inhibited deployment of the affected curtain airbag in a crash
What to check
- Read and record all SRS codes and freeze-frame data with a compatible scan tool
- Verify any related codes that could indicate a module or bus issue
- Visually inspect wiring and connectors for the front-left curtain airbag: tears, pinches, corrosion, water intrusion, loose connectors
- Check connector locking tabs are fully engaged and pins not pushed out or shorting
- Inspect nearby harness routing where it passes through body holes, roof pillars, and behind trim panels
- Check fuses and fusible links related to the SRS circuit (do not bypass fuses)
Signal parameters
- Expected squib resistance (typical): approximately 1–6 ohms for airbag squibs (manufacturer spec varies) — a very low ohms reading (~0 ohm) to chassis or to battery implies a short; an open/infinite reading implies open circuit
- With ignition ON (and SRS power enabled), squib circuit should not show continuous battery voltage on the squib pin unless commanded; presence of +12V at squib connector when system is not firing suggests short to battery
- Measured voltage between squib circuit and chassis ground should be near 0V when circuit is intact (not being driven) unless a fault is present
Diagnostic algorithm
- Safety first — follow manufacturer SRS procedures: turn ignition OFF, disconnect negative battery terminal and wait manufacturer-specified time (commonly 90 seconds to several minutes) before accessing SRS components
- Use a scan tool to clear codes, then re-scan to confirm B1453 returns and note any other related codes
- Perform visual inspection of harness and connectors for the front-left curtain airbag (A-pillar/roof area). Remove trim as needed to access harness and connector
- With battery disconnected and discharged wait time observed, disconnect the curtain squib connector at the module or at the squib and inspect pins for damage/corrosion. Repair or replace damaged connectors.
- Using an ohmmeter (with battery reconnected only when safe per manufacturer) measure squib resistance at the airbag connector and at the control module side. Compare to manufacturer spec. If resistance is near 0 ohms to battery/positive, there is a short to battery; if open/infinite, there is a break.
- If short suspected, isolate sections of wiring: disconnect intermediate connectors and re-test to localize segment with short to battery. Repair/replace damaged wiring or replace connector assemblies as needed.
- If the wiring and connectors test good, suspect the squib/inflator assembly. Replace the curtain airbag assembly per manufacturer instructions (replace only with OEM or approved part).
- If wiring and squib are good, consider airbag control module internal fault. Test/inspect module power/grounds and communications; replace or reprogram module only after following manufacturer's diagnostic flow.
- After repairs, clear codes with scan tool, perform SRS self-test and verify no return of the code. Reassemble trim and perform final road/system checks.
- Record repairs and ensure proper disposal/handling of replaced airbag components. Do not attempt to test-deploy a squib or short the circuit — use approved diagnostic methods only.
Likely causes
- Damaged insulation with conductor contacting vehicle positive wiring or metal body
- Connector terminal pushed into contact with positive terminal or corroded pin creating conductivity to battery
- Short inside the squib assembly due to water ingress or previous impact
- Incorrect connector mating after repairs (pins reversed/misaligned)
Fault status
Status
Front-left curtain airbag squib circuit shorted to battery (positive). SRS detected unexpected battery voltage on the FL curtain squib circuit — circuit disabled until repaired.
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
0
👎 Dislike
0
Send to email
Code
B1453
OPEL
B — Body
Switched System Voltage (Ignition ON) Circuit Low Voltage
Views:
UK: 7
EN: 7
RU: 5
AI status
Completed
Completed
100%
Causes
- Short to battery (positive) on the FL curtain squib circuit
- Damaged or chafed wiring harness (pinched/abraded insulation)
- Corroded, bent, or contaminated connector pins at the squib or control module
- Faulty curtain airbag squib (internal short in inflator/squib)
- Poor or loose connector connection
- Aftermarket equipment or previous repairs that disturbed the wiring
Symptoms
- SRS / airbag warning lamp ON (driver dash)
- Front-left curtain airbag disabled (may be indicated by the vehicle or inferred from DTC)
- Possible other SRS-related DTCs stored
- Inoperative or inhibited deployment of the affected curtain airbag in a crash
What to check
- Read and record all SRS codes and freeze-frame data with a compatible scan tool
- Verify any related codes that could indicate a module or bus issue
- Visually inspect wiring and connectors for the front-left curtain airbag: tears, pinches, corrosion, water intrusion, loose connectors
- Check connector locking tabs are fully engaged and pins not pushed out or shorting
- Inspect nearby harness routing where it passes through body holes, roof pillars, and behind trim panels
- Check fuses and fusible links related to the SRS circuit (do not bypass fuses)
Signal parameters
- Expected squib resistance (typical): approximately 1–6 ohms for airbag squibs (manufacturer spec varies) — a very low ohms reading (~0 ohm) to chassis or to battery implies a short; an open/infinite reading implies open circuit
- With ignition ON (and SRS power enabled), squib circuit should not show continuous battery voltage on the squib pin unless commanded; presence of +12V at squib connector when system is not firing suggests short to battery
- Measured voltage between squib circuit and chassis ground should be near 0V when circuit is intact (not being driven) unless a fault is present
Diagnostic algorithm
- Safety first — follow manufacturer SRS procedures: turn ignition OFF, disconnect negative battery terminal and wait manufacturer-specified time (commonly 90 seconds to several minutes) before accessing SRS components
- Use a scan tool to clear codes, then re-scan to confirm B1453 returns and note any other related codes
- Perform visual inspection of harness and connectors for the front-left curtain airbag (A-pillar/roof area). Remove trim as needed to access harness and connector
- With battery disconnected and discharged wait time observed, disconnect the curtain squib connector at the module or at the squib and inspect pins for damage/corrosion. Repair or replace damaged connectors.
- Using an ohmmeter (with battery reconnected only when safe per manufacturer) measure squib resistance at the airbag connector and at the control module side. Compare to manufacturer spec. If resistance is near 0 ohms to battery/positive, there is a short to battery; if open/infinite, there is a break.
- If short suspected, isolate sections of wiring: disconnect intermediate connectors and re-test to localize segment with short to battery. Repair/replace damaged wiring or replace connector assemblies as needed.
- If the wiring and connectors test good, suspect the squib/inflator assembly. Replace the curtain airbag assembly per manufacturer instructions (replace only with OEM or approved part).
- If wiring and squib are good, consider airbag control module internal fault. Test/inspect module power/grounds and communications; replace or reprogram module only after following manufacturer's diagnostic flow.
- After repairs, clear codes with scan tool, perform SRS self-test and verify no return of the code. Reassemble trim and perform final road/system checks.
- Record repairs and ensure proper disposal/handling of replaced airbag components. Do not attempt to test-deploy a squib or short the circuit — use approved diagnostic methods only.
Likely causes
- Damaged insulation with conductor contacting vehicle positive wiring or metal body
- Connector terminal pushed into contact with positive terminal or corroded pin creating conductivity to battery
- Short inside the squib assembly due to water ingress or previous impact
- Incorrect connector mating after repairs (pins reversed/misaligned)
Fault status
Status
Front-left curtain airbag squib circuit shorted to battery (positive). SRS detected unexpected battery voltage on the FL curtain squib circuit — circuit disabled until repaired.
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
0
👎 Dislike
0
Send to email
Code
B1453
Other
B — Body
Wiper Wash/Delay Switch Circuit Short To Ground
Views:
UK: 16
EN: 20
RU: 12
AI status
Completed
Completed
100%
Causes
- Short to battery (positive) on the FL curtain squib circuit
- Damaged or chafed wiring harness (pinched/abraded insulation)
- Corroded, bent, or contaminated connector pins at the squib or control module
- Faulty curtain airbag squib (internal short in inflator/squib)
- Poor or loose connector connection
- Aftermarket equipment or previous repairs that disturbed the wiring
Symptoms
- SRS / airbag warning lamp ON (driver dash)
- Front-left curtain airbag disabled (may be indicated by the vehicle or inferred from DTC)
- Possible other SRS-related DTCs stored
- Inoperative or inhibited deployment of the affected curtain airbag in a crash
What to check
- Read and record all SRS codes and freeze-frame data with a compatible scan tool
- Verify any related codes that could indicate a module or bus issue
- Visually inspect wiring and connectors for the front-left curtain airbag: tears, pinches, corrosion, water intrusion, loose connectors
- Check connector locking tabs are fully engaged and pins not pushed out or shorting
- Inspect nearby harness routing where it passes through body holes, roof pillars, and behind trim panels
- Check fuses and fusible links related to the SRS circuit (do not bypass fuses)
Signal parameters
- Expected squib resistance (typical): approximately 1–6 ohms for airbag squibs (manufacturer spec varies) — a very low ohms reading (~0 ohm) to chassis or to battery implies a short; an open/infinite reading implies open circuit
- With ignition ON (and SRS power enabled), squib circuit should not show continuous battery voltage on the squib pin unless commanded; presence of +12V at squib connector when system is not firing suggests short to battery
- Measured voltage between squib circuit and chassis ground should be near 0V when circuit is intact (not being driven) unless a fault is present
Diagnostic algorithm
- Safety first — follow manufacturer SRS procedures: turn ignition OFF, disconnect negative battery terminal and wait manufacturer-specified time (commonly 90 seconds to several minutes) before accessing SRS components
- Use a scan tool to clear codes, then re-scan to confirm B1453 returns and note any other related codes
- Perform visual inspection of harness and connectors for the front-left curtain airbag (A-pillar/roof area). Remove trim as needed to access harness and connector
- With battery disconnected and discharged wait time observed, disconnect the curtain squib connector at the module or at the squib and inspect pins for damage/corrosion. Repair or replace damaged connectors.
- Using an ohmmeter (with battery reconnected only when safe per manufacturer) measure squib resistance at the airbag connector and at the control module side. Compare to manufacturer spec. If resistance is near 0 ohms to battery/positive, there is a short to battery; if open/infinite, there is a break.
- If short suspected, isolate sections of wiring: disconnect intermediate connectors and re-test to localize segment with short to battery. Repair/replace damaged wiring or replace connector assemblies as needed.
- If the wiring and connectors test good, suspect the squib/inflator assembly. Replace the curtain airbag assembly per manufacturer instructions (replace only with OEM or approved part).
- If wiring and squib are good, consider airbag control module internal fault. Test/inspect module power/grounds and communications; replace or reprogram module only after following manufacturer's diagnostic flow.
- After repairs, clear codes with scan tool, perform SRS self-test and verify no return of the code. Reassemble trim and perform final road/system checks.
- Record repairs and ensure proper disposal/handling of replaced airbag components. Do not attempt to test-deploy a squib or short the circuit — use approved diagnostic methods only.
Likely causes
- Damaged insulation with conductor contacting vehicle positive wiring or metal body
- Connector terminal pushed into contact with positive terminal or corroded pin creating conductivity to battery
- Short inside the squib assembly due to water ingress or previous impact
- Incorrect connector mating after repairs (pins reversed/misaligned)
Fault status
Status
Front-left curtain airbag squib circuit shorted to battery (positive). SRS detected unexpected battery voltage on the FL curtain squib circuit — circuit disabled until repaired.
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
0
👎 Dislike
0
Send to email