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Over the past few months, we've been sharing OEM position statements on restraints wiring repairs. Now we're bringing them all together in one place for easy reference.
We've separated the vehicle makers into two groups: those that do not allow restraints wiring repairs and those that allow restraints wiring repairs.
Do NOT Repair
Genesis
Per Genesis service manuals: "Never attempt to modify, splice, or repair SRS wiring. If there is an open or damage in SRS wiring, replace the harness."
Honda / Acura
Per the Honda and Acura repair information states: "Never attempt to modify, splice, or repair airbag system wiring. If airbag system wiring is damaged, replace the wiring harness(es)."
Hyundai
Per the Hyundai service information: "Never attempt to modify, splice, or repair SRS wiring. If there is an open or damage to the SRS wiring, replace the harness."
Kia
Per Kia service manuals: "SRS wiring can be identified by special yellow outer covering. Observe the instructions described in this section. Never attempt to modify, splice, or repair SRS wiring. If there is an open or damage in SRS wiring, replace the harness."
Maserati
Per a Maserati service bulletin: "Maserati does not allow any repairs to airbag system wiring harnesses, connectors, or terminals. If any damage is found on an airbag harness, connector or wire terminal, it must be replaced... It is forbidden to repair (solder) any electrical connections that affect devices involved in the active safety of the vehicle, unless prior express authorization from Maserati Technical Service is obtained."
Mazda
Per the Mazda service information: "Incorrectly repairing an air bag wiring harness can accidentally operate (deploy) the air bag module and pre-tensioner front buckles. If a problem is found in the air bag wiring harness, always replace the wiring harness with a new one."
Mitsubishi
Per the Mitsubishi service information: "Do not attempt to repair the wiring harness connectors of the SRS. If any of the connectors are diagnosed as faulty, replace the wiring harness. If the wires are diagnosed as faulty, replace or repair the wiring harness according to the following table." The table can be found in the Mitsubishi repair information.
Subaru
Per Subaru service information: "If damage, open circuit or rust is found on airbag system wiring harness, do not repair the harness. Always replace the faulty harness with a new genuine part."
Toyota / Lexus / Scion
Per Toyota CRIB #160 SRS Precautions: "Never repair SRS wiring or connectors. Replace damaged wiring." Always refer to Toyota/Lexus service information for the most up-to-date CRIB information.
Repairs Allowed
Audi
Per the Audi Electrical Equipment General Information:
- For repairs maximum of 2 repairs areas can be performed.
- Perform the repair a maximum 30 cm from the connector housing.
- When repairing wires must be of the same length. When twisting together wires -1- and -2-, length of lay of -a- = 20 mm ±5 must be strictly observed."
BMW / Mini
Per BMW service information: "Only repair those cables which show visible signs of damage. In the event of visible damage, make sure there is only one cable repair in effect after the repair work. If no visible damage can be identified, the entire cable must be replaced. When carrying out repairs to the airbag wiring harness, you must use the spare parts offered in the Electronic Parts Catalogue (EPC)."
Chevrolet / Cadillac / Buick / GMC
Per the General Motors (GM) service information Document ID 325229 - SIR/SRS Wiring Repairs: "The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS) requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the specific procedures and instructions when working with the SIR/SRS, and the wiring components, such as connectors and terminals."
Fiat / Chrysler / Dodge / Jeep / RAM / Alfa Romeo
Per FCA/Stellantis service information: "...never attempt to repair the electrically conductive circuits or wiring components related to the SRS for which there is no Mopar® wiring repair kit. It is important to use ONLY the recommended splicing kit and procedure…"
Ford / Lincoln
Per the Wiring and Connector Repair Procedures document: "Restraint terminals are not to be repaired/replaced with individual pins/terminals. The terminals are sonic welded to the wire and molded into the connector"
"Ford no longer requires replacement of the affected harness if a restraint connector requires service. Wiring Pigtail Kits designed specifically for the deployable components of the restraint harness should be used."
Jaguar Land Rover
Per the JLR Wiring Harness document:
- "All supplementary restraint system wiring harness repairs must be completed using the recommended pre-terminated leads, overlays and the approved repair kit only."
Mercedes-Benz / Smart
Per the Mercedes-Benz service information: "The SRS wire harness pigtail is replaced using solder connectors. Contact a Mercedes-Benz part dealer."
Nissan / INFINITI
Per the Nissan/INFINITI TechTalk summary document, TT Harness Repair Kit: "Nissan/INFINITI now allow repairs to SRS connectors and wire overlays of most circuits. Wiring harness and connector repair procedures have been expanded to improve customer satisfaction by simplifying the repair of most electrical wiring harnesses, which is the preferred alternative to wiring harness replacement."
Rivian
Per the Rivian Harness Repair Guidelines document:
"Certain harnesses can only be repaired to a limited degree:
- Harnesses that connect to airbags, airbag sensors, seatbelt pretensioners, and pyrotechnic HV disconnection switches: Only perform squib (pigtail) replacement."
Rolls-Royce
Per Rolls-Royce: “Only repair those cables which show visible signs of damage. In the event of visible damage, make sure there is only one wire repair in effect after the repair work. If no visible damage can be identified, the entire cable must be replaced. When carrying out repairs to the airbag wiring harness, you must use the spare parts offered in the Electronic Parts Catalog (EPC)."
Tesla
Per Tesla: "The items listed below are repairable only by a Tesla Service Center, Regional Technical Specialist (RTS), or Field Technical Specialist (FTS). Contact Tesla Collision Repair for guidance if repairs are needed on of the following:"
- "Supplemental restraint system (SRS) circuits, such as airbag and seatbelt"
- "Airbag sensor and seat sensor"
Volkswagen
Per the Volkswagen position statement, Supplemental Restraint System Wiring Harnesses Applicable To All Volkswagen Models: ”Do NOT attempt to repair the SRS wiring system or related components on any Volkswagen vehicle unless otherwise stated in VWoA repair procedures. Replace any damaged or bent SRS components with Genuine Volkswagen Parts."
Volvo
Per the Volvo service information: "Caution! As the SRS system is a safety system, it is extremely important that these instructions are carefully followed when carrying out repairs in the cable harness."
