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*NO RESPONSE FROM HVAC (A/C HEATER CONTROL - ATC ONLY) (CONTINUED) 3. (F921) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR SHORTED Turn the ignition on. Using a 12-volt test light connected to ground, check the (F921) Fused Does the test light illuminate brightly? Yes >> Go To 4 No >> Repair the (F921) Fused Run Relay Output for an open or short. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 4. (Z906) GROUND CIRCUIT OPEN Using a 12-volt test light connected to 12-volts, check the (Z906) Does the test light illuminate brightly? Yes >> Go To 5 No >> Repair the (Z906) ground circuit for an open. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 8E - 194 ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS WK |