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U0019–CAN B BUS (ATC) (CONTINUED) 3. CHECK (D55) CAN B BUS (+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the negative battery cable. Disconnect the A/C Heater Control C1 harness connector. Disconnect the Front Control Module (FCM) C1 harness connector. Measure the resistance of the (D55) CAN B Bus (+) circuit between Is the resistance below 2.0 ohms? Yes >> Go To 4 No >> Repair the (D55) CAN B Bus (+) circuit for an open. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 4. CHECK (D54) CAN B BUS (–) CIRCUIT FOR AN OPEN Measure the resistance of the (D54) CAN B Bus (–) circuit between Is the resistance below 2.0 ohms? Yes >> Replace the A/C Heater Control in accordance with the Service Information. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 No >> Repair the (D54) CAN B Bus (–) circuit for an open. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 24 - 340 HVAC - ELECTRICAL DIAGNOSTICS WK |