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8. CHECK THE (W523) FRONT AIRBAG STATUS SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Multi-Purpose Module (Police And Taxi Interface Mod- Measure the resistance of the (W523) Front Airbag Status Signal circuit Is the resistance below 5.0 ohms? Yes >> Go To 9. No >> Repair the (W523) Front Airbag Status Signal circuit for an open or high resistance. Perform BODY VERIFICATION TEST – VER 1. (Refer to 9. CHECK THE MULTI-PURPOSE MODULE (POLICE AND TAXI INTERFACE MODULE-PTIM) Turn the ignition off. Disconnect all Multi-Purpose Module (Police And Taxi Interface Module-PTIM) and aftermarket light/siren controller Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all Multi-Purpose Module (Police And Taxi Interface Module-PTIM) and aftermarket light/siren controller har- Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the Multi-Purpose Module (Police And Taxi Interface Module-PTIM) and If only stored codes return continue the test until the problem area has been isolated, and repair any obvious prob- Is B1CC2 — DEPLOYMENT NOTIFICATION OUTPUT CIRCUIT HIGH still displayed? Yes >> Replace the Multi-Purpose Module (Police And Taxi Interface Module-PTIM) in accordance with the ser- vice information. Perform BODY VERIFICATION TEST – VER 1. (Refer to BODY VERIFICATION TEST – VER 1). No >> Repair is complete. The problem may have been caused by a loose or corroded terminal. Perform BODY VERIFICATION TEST – VER 1. (Refer to BODY VERIFICATION TEST – VER 1). 8M - 94 MESSAGE CENTER - ELECTRICAL DIAGNOSTICS LX |