Unfortunately the 86 has no self diagnostics for either system or reset procedure. When the system is right the lights will go off. Both systems are tested by dedicated testers. The most common problem is lack of power to the controller. On the ABS this often is the OVP relay. On the SRS there is no relay involved.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician