Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostics Disabling Procedure
This procedure should only be used when performing air bag system diagnostics.
- Record pre-set radio frequencies for reprogramming. Disconnect negative battery cable. Wait at least one minute for back-up power supply to deplete stored energy.
- Remove driver-side air bag module. See DRIVER-SIDE AIR BAG MODULE under REMOVAL & INSTALLATION. Connect Air Bag Simulator (418-037) to clockspring side of upper clockspring connector (in place of air bag module). See Figure.
- Remove glove box and disconnect passenger-side air bag module harness connectors. See PASSENGER-SIDE AIR BAG MODULE under REMOVAL & INSTALLATION. Connect Air Bag Simulator (418-138) to vehicle harness side of passenger-side air bag module connectors.
- Disconnect left side air bag module harness connector located under left front seat. Connect Air Bag Simulator (418-139) to vehicle harness side of left side air bag module connector (in place of air bag module). Disconnect right side air bag module harness connector located under right front seat. Connect Air Bag Simulator (418-139) to vehicle harness side of right side air bag module connector.
- On models equipped with front seat belt buckle pretensioners, disconnect left front seat belt pretensioner harness connector located under left front seat. Connect Air Bag Simulator (418-139) to vehicle harness side of left front seat belt pretensioner connector. Disconnect right front seat belt pretensioner harness connector located under right front seat. Connect Air Bag Simulator (418-139) to vehicle harness side of right front seat belt pretensioner connector.
- On models equipped with front seat belt retractor pretensioners, access left front seat belt pretensioner and disconnect pretensioner harness connector. See SEAT BELT PRETENSIONER under REMOVAL & INSTALLATION. Connect Air Bag Simulator (418-139) to vehicle harness side of left front seat belt pretensioner connector. Access right front seat belt pretensioner and disconnect pretensioner harness connector. Connect Air Bag Simulator (418-139) to vehicle harness side of right front seat belt pretensioner connector. On all models, reconnect negative battery cable.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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