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3. CHECK THE (C850) BLOWER SWITCH POSITION SIGNAL CIRCUIT VOLTAGE Disconnect the A/C Heater Control C3 harness connector. Turn the ignition on. Measure the voltage of the (C850) Blower Switch Position Signal circuit. What is the voltage? Below 4.8 Volts Go To 4 Above 5.2 Volts Go To 8 4.8 Volts To 5.2 Volts Go To 9 4. CHECK THE (C850) BLOWER SWITCH POSITION SIGNAL CIRCUIT FOR A SHORT TO THE (Z908) Turn the ignition off. Measure the resistance between the (C850) Blower Switch Position Sig- Is the resistance below 10K ohms? Yes >> Repair the (C850) Blower Switch Position Signal circuit for a short to the (Z908) Ground circuit. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 ELECTRICAL/ELECTRONIC CONTROL MODULES/ FRONT CONTROL MODULE - DIAGNOSIS AND TEST- No >> Go To 5 24 - 30 HVAC - ELECTRICAL DIAGNOSTICS LX |